December 17

Wharf Street, Gosford | Remedial Building Services

This multi-tiered waterfront property located in G [...]


This multi-tiered waterfront property located in Gosford NSW was suffering extensive structural damage caused by consistent water ingress. Upon early inspection, engineers found that the property had been poorly constructed, allowing water to penetrate through the external balconies into living areas in the apartments below.

The scope of the work requested by the engineers included:

  • Removal and replacement of windows and rectification of faulty workmanship
  • Removal and replacement of faulty roofing membrane
  • Replacement of cavity flashings
  • Tiling
  • Installation of expansion joints
  • Installation of concrete hobs in accordance with the Building Code of Australia
  • Installation of new balustrading
  • Painting of all external render

The Rectification Process

Remedial commenced the project in early 2015 after tendering a methodology for undertaking the project. Before beginning the works, Remedial erected scaffolding at the rear of the property to minimise the impact on residents.

The first stage of the project involved the removal of the old balustrades, balcony tiles and membranes. Once this was completed, the team began the removal of the apartment windows and glass door assemblies, before installing a torch-on waterproofing membrane system. A flashing was then placed in the appropriate position before reinstalling the door and windows. This procedure was performed on each apartment one-by-one, in order to reduce the impact on residents by ensuring that each home was exposed to the elements for the minimum possible time.

During the next stages of the project, cavity flashings were installed, a torch-on membrane was applied to the surface of each balcony and screeds were applied where necessary. Once this was complete,the legs for the new glass and aluminium balustrades were positioned, new tiles were installedand a suitable expansion jointing system was applied to allow adequate movement of the joints.

The final stage of the project involved the coating of various elements and the installation of the balustrade frames and glass. After the completion of all rectification works, the building was commercially cleaned prior to the final inspection by the engineers. As soon as the completion certificate was issued, the scaffolding was removed.

Environmental Management

At Remedial, the protection of the natural environment is always an important consideration. Accredited to Australian Environmental Standards, you can rest assured that for every project Remedial undertake, there is an appropriate environmental program in place to ensure the safety of the natural environment.

For the Wharf Street rectification project, the measures taken included but were not limited to:

  • Runoff socks
  • Protective sheeting during water blasting
  • On-site chemical containment
  • Removal, storage and re-introduction of plants which would have otherwise been affected by foot traffic or scaffolding.
December 17

Department of Education Building - A case study on heritage works and waterproofing | Remedial Building Services

The Heritage Listed Department of Education Buildi [...]


The Department of Education Building located in Sydney’s CDB, was designed by the acclaimed architect George McRae, the esteemed architect was also responsible for the design of Sydney’s famous Queen Victoria Building on George Street.

Constructed in 1914, the building is characterised by Edwardian Baroque design elements which are rarely found in Australian architecture. Almost a century after the building’s construction, Remedial Building Services were engaged to perform restoration works to this beautiful building for the purposes of ensuring that water damage and ingress could be prevented into the future. 
All told, the work we were brought on to address included:

  • Removal of bonded asbestos sheeting from the roofing. This was not only a hazardous product, but it was failing causing water to seep into the building. 
  • Removal of concrete which had begun to pull away from the concrete slab
  • Correction of falls to the concrete slab
  • Application of a torch-on membrane waterproofing system
  • Removal of copper flashings
  • Reinstallation of flashings to prevent water ingress
  • Removal of window beading and replacement of appropriate solution

The Rectification Process

Rectification on this extensive project began on the rooftop of the building, where qualified asbestos removal staff began the process of isolating the area to be worked on, encapsulating it and then removing the faulty membrane containing bonded asbestos.
During this stage of the rectification, Remedial worked with building management to implement extensive measures to protect employees and the general public from any exposure to asbestos particles. Once all asbestos affected materials had been safely disposed of, the Remedial team installed a new torch-on membrane to the roof and parapet in order to prevent the ingress of water into the building.

After the roof was completed, specialist staff with extensive heritage rectification experience repaired and replaced all copper flashings and window beading.

This rectification project was completed over a 16 month period to the satisfaction of the building management, with minimal if any impact on the occupants of the building. The high quality work provided by Remedial enhanced the waterproofing and structural integrity of the building while maintaining all the requirements of a heritage listed building.
These works will allow the building to remain structurally sound and visually spectacular for many years to come.

December 05

About Us | Remedial Building Services

Remedial Building Services was founded in 1969, to [...]

Remedial Building Services was founded in 1969, to provide specialist building repair and upgrade services to commercial and large residential buildings.

Since we first started opened our doors we have grown in stature and in terms of the services we offer. Today, we offer clients services including:


At Remedial we hold strongly to the belief that attention to detail should not be the domain of luxury items only. Our team – from the Directors, through to the project manager and staff on site – all work tirelessly to ensure that the products we use on site, the training our staff have and the solutions we recommend all combine to ensure that the services we provide to you are unequivocally, the best they can be.


As leaders within the industry we are constantly seeking to develop and to use best-practice. We aspire to only use the best staff and certified methodologies and products in completing our work. At all times, across all areas we service, we work closely with product suppliers, engineers and industry bodies, so you can be assured that our recommendations and our workmanship are outstanding.

Priding ourselves on our level of expertise and our commitment to providing only the best building solutions, we have obtained a number of professional accreditations including:

  • ISO9001:2000 accreditation
  • ISO14001:2004 accreditation
  • ACRA membership
  • ISTM membership
  • HIA membership
December 05

122 Bower Street, Manly | Remedial Building Services

This red brick apartment block overlooking Manly b [...]


This red brick apartment block overlooking Manly beach required extensive structural work in order to address a number of safety hazards identified by consulting engineers.

The list of structural issues to be rectified included:

  • Brick delamination
  • Concrete spalling on the underside of balconies
  • Rusted balustrades and conformance
  • Lintel corrosion
  • Failing waterproofing
  • Window obsolescence

In addition to these structural upgrades, the Strata Committee requested that aesthetic upgrades also be implemented during renovation.

Requested aesthetic upgrades included:

  • New window design
  • Re-rendering of the entire building
  • Installation of new balcony balustrades
  • Upgrades to tiling
  • Painting in collaboration with a colour consultant

The requested aesthetic and structural works were completed within fifteen months, and ten years on this building remains visually appealing and completely free of structural issues. This building is testament the quality workmanship on which Remedial Building Services prides itself.

December 05

Waratah Avenue, Randwick | Remedial Building Services

Not all facades require render and paint to look g [...]


Randwick has a rich cultural history, from being the home to the largest Aboriginal community in Sydney at one point, to being a hub of prosperity and architectural significance with significant houses constructed such as Ventnor overlooking Coogee Beach.. 
It is no surprise then, that Randwick counts several red brick buildings which are well known for their architectural signficance. 
On the corner of Waratah Ave and Belmore Road, is such an example. With arched windows and detailed brick fascias there is a strong neo-gothic architectural style to this bulding which makes it very memorable. Having withstood the elements, human impacts and polution for a number of decades, the building had come into a state of ill-repair when Remedial Building Services were contacted to help restore it to its former beauty. 


With the scope of works defined by Alan Wright engineers, the Remedial team got to work on restoring the structural and aesthetic elements of the building. Over a 9 month period we:

  • Replaced and installed new heleties
  • Removed all windows and replaced them with windows which were in keeping with the facaded, yet which offered superior noise and thermal protection
  • Painted
  • Sourced like-for-like bricks and re-layed large sections of the brickwork which had delaminated or become unsound
  • Repointed the entire building
  • Installed new cappings
  • Put in place new ties to the awnings to improve the structural strength
Through continual communication with the Body Corporate and the residents, work was completed with minimal disruption for residents. Residents were given multiple options for times which would suit for window replacement so that they could plan their lives around it with minimal impact on their day-to-day. 
December 05

Carbon Fibre Strength and Flooring Work in Sydney | Remedial Building Services

Macquarie Park in Sydney has for the last two to t [...]



Services:Flooring SolutionsCarbon Fibre Strengthening

Macquarie Park in Sydney has for the last two to three years, been the scene of major upgrades in terms of both infrastructure and commercial development. From new housing to commercial preceicnst and infrastructure the area looks nothing like it did before work began.
Recently were were appointed by The Governor Hotel ito provide services to help get them ready to launch to the public.


With the slab ready to go, the Remedial team were called in to turn a simple concrete surface into a durable, non-slip flooring surface across their public bars, back of house and kitchen areas. 
The owners recognised that whlst concrete flooring is durable for most wear and tear, hygiene factors, Workplace safety and ease in cleaning meant that a surface such as an epoxy were needed. Our team worked to apply a two coat epoxy solution in the clients chosen colours, helping to make the surface safe and ready for business. 


The Governor hotel makes great use of outdloor spaces with BBQ and alfresco dining on the second level. What the client had learned however, was that the 110mm existing slab was insufficiently strengthened to bear the load. 
Our team recommended the installation of carbon fibre strips which act as a flexible, yet very strong enhancer of the concrete surface. Not only do these fit snuggly onto the existing surface making them hard to see, but they offer a very cost effective solution in adding load-bearing strength to the slab. 

December 04

Green Construction in Focus: Lightweight Building Materials| Nullifire | Permax

Find out from the Permax blog what the fire protec [...]

Green Construction in Focus: Lightweight Building Materials

Nov 11, 2019


Whether you are an environmental sceptic or not, the truth is, the building industry is evolving and environmentalism and protection of the environment has become a red hot topic. With traditional building processes, many materials have harsh impact on the earth's natural resources and the environment. With a growing push by governments and industry bodies around the world, the construction is seeing a shift to employ sustainable materials that help protect the environment in the long run.
In this piece, we deep dive into the changes which are afoot and take a look at various lightweight construction materials being used in the building industry today and how the utilisation of these improves your project and limits the effect on the environment.

What are eco-friendly building materials?

Eco-friendly building materials are those that either do not harm the environment or limit their impact upon it (both in their development and in their final use), created through the efficient utilisation of renewable resources, as well as the nominal use of energy and natural resources in making them and while using them.  
In Australia, the use of environmental-friendly construction elements is governed by the Green Building Council Australia or GBCA which aims to

“… achieve more productive, liveable, sustainable and healthy cities; secure more resilient communities; deliver a low carbon, high performing built environment; raise minimum standards through the National Construction Code; and facilitate sustainable utility infrastructure.”  

Recognising that the construction industry generates forty per cent of waste, consumes around a third of Australia’s water, and remains the number one contributor to greenhouse gas emissions, the GBCA aims to assess “… sustainable design, construction and operation of buildings, fitouts and communities …” through its Green Star initiative.

Why are Green Star buildings better for our environment?

According to the GBCA, Green Star buildings not only help promote the overall well-being of occupants but also:

  • produce 62 percent fewer greenhouse gas emissions than average Australian buildings;

  • consume 51 per cent less potable water than minimum industry standard;

  • use 66 percent less electricity than average Australian buildings; and

  • recycle 96 per cent of their construction and demolition waste.

These figures alone showcase the valuable input Green Buildings can have on the future of our planet, but there are many more benefits as well. If you are looking to build sustainable and more green buildings to contribute to the creation of more liveable communities around the country, you can start by opting for low-impact materials in your construction venture. Below are some of the lightweight construction materials that you can consider.

Recycled Steel

Steel remains one of the most recycled materials in the world, with a 95 per cent overall recycling rate in Australia, which is classified as one of the best in the world.
When steel is recycled, it spares thousands of pounds of iron ore, coal, and limestone from being used. The reproduction of steel also saves energy; with some estimates stating enough power for a total of around 20 million houses a year could be saved.
Whilst there are arguments that cuildings made of steel lower longer term impacts on the environment as they are not easily affected by weather elements and are resistant to infestations of insects and mould, consideration must be given to the entire picture. Sure, unlike wood, steel – if coated with intumescents, can resist fire for longer – and as steel delivered onsite is pre-customised according to the specifications required by the builders, little waste is produced, but what is the carbon footprint of getting to that stage?  

Lightweight Concrete Blocks

Lightweight concrete blocks are construction materials made of cement mixed with aggregates like pumice, foamed slag, shales and clays, or even fuel ash aggregate. They are often used to insulate roofs and water pipes and even as partition walls inside buildings.
Lightweight concrete blocks have low thermal conductivity, making them a safe choice for improving the fire safety protection of buildings. Because heat transfer is slow in this type of material, you can also lessen the energy consumption used the structure, thus minimising the greenhouse gas emissions from the building.
Lightweight concrete is highly durable, especially when properly cured. It becomes more elastic, stronger, and thus help in reducing shrinkage and cracks as a result of pressure, chemical attack, or physical stress.
Although a less obvious environmental benefit, transportation of lightweight concrete blocks can help reduce transport impacts and the release of carbon footprints to the atmosphere because more materials can be loaded in one load unlike heavier structural materials which when transported are only limited to fewer volumes per trip.

Plant-Based Polyurethane Rigid Foam

One of the most popular materials used for insulation of wall assemblies and roofing is rigid foam. With its strength, easy installation, and water and pest resistance, it makes a great choice in making a building more energy efficient as well as more comfortable for occupants.  
A new technology in insulation product making has allowed the utilisation of bamboo, hemp or kelp to make plant-based polyurethane rigid foams. With this, you can expect a higher level of resistance from mould, insects, as well as moisture, thus ensuring a long life cycle and eliminating the need to replace it prematurely. Plant-based rigid foams are not only lightweight but are also have a great high-heat resistance, aiding in the maintenance of a cool indoor temperature and decreasing the energy required to cool a building.  

Cross-laminated Timbers

Like the name would suggest, Cross Laminated Timbers (popularly called CLT) refers to a plywood made of boards that can reach enormous dimensions: between 2.40 m and 4.00 m high, and up to 12.00 meters long. Each alternate layer is laid with the grain at 90 degrees to the prior one, making it a matrix formation. The wood is adhered with resins thus further enhancing the strength of the wood.
Made from either recycled timbers, or more often from timbers from sustainable forests, CLT represents a viable green building material. Adding to its credentials is the fact that the environmental impact from production is a fraction that of concrete and steel. Try this fact on for size: One tonne of Carbon Dioxide is emitted for every cubic meter of concrete produced, whereas CLT contains "sequestered carbon," or carbon that is naturally stored in wood during tree growth.
And if you need any further proof that CLT is a lightweight material of the future, consider this, when comparing CLT and concrete, to achieve the same degree of insulation that a 100 mm thick CLT wall would provide, you would need to build a concrete wall with a thickness of 1.80 m. (1/18 ratio).
For more on why CLT is an amazing construction material, read an article on it.

How to Find Lightweight, Ecologically Friendly Building Materials

Aside from the materials mentioned above, there are many other construction materials that forward-thinking builders are starting to use which improve construction, enhance architectural elements and which assist in protecting the environment.
The next 10 years in construction are going to be exciting and transformative, so the sooner you start to make a change, the more you will keep up with the industry. 

December 04

Technology which is improving Construction | Permax

the future of building construction will be founde [...]

Technological Advances That Will Impact the Buildings of Tomorrow

Oct 28, 2019


It is amazing how many aspects of construction have significantly improved since the 1400’s where builders and masons constructed breathtaking stone churches and structures. Imagine if htey had access to the technology we have and what they could have created.
Today, although design and construction principles remain similar (and in fact are leading a revival in designs of today), we've seen how the industry has transformed, thanks to modern-day technologies that not only helped make processes faster but also allowed owners and builders to save on costs and to make the entire build process more efficient and safer than ever.
In this article, we will explore the different technological advances in the construction industry and find out what these mean for the buildings of tomorrow.

Offsite Construction

One of the drivers of the construction industry that has made building work faster without compromising quality is offsite construction.
According to the 2017 book Offsite Architecture by Ryan Smith, offsite construction is the “… manufacturing, planning, design, fabrication, and assembly of building elements at a location other than their final installed location.” Under this method of building, some parts of the buildings are prefabricated in a different location and then brought to the site or in other arrangements, the elements are prefabricated onsite before they are transferred to their final location.
Offsite construction was developed to resolve the common issues of space restrictions and housing of equipment onsite. Builders who don’t have the luxury of space need not delay their operation just to complete various parts of the structure and they need not spend millions of dollars just to purchase the machinery required to construct a particular element of the building. With offsite construction, problems of space, time, and cost are managed appropriately since building work and site tasks can be done simultaneously.
The regard for offsite construction as a new building technology is credited to the rising popularity of modular buildings, where elements of the build are created away from the building site and then installed section by section on the location of the final structure. It must be noted that with this design’s flexibility, cost effectiveness, high quality, speed of construction, and low waste produced, modular buildings are starting to be received well by the market, making it a thriving choice for residences, educational institutions, commercial spaces, and even healthcare buildings.


Machines replacing manual labour is nothing new in today’s world; however, we cannot dismiss how robotics has definitively transformed and will continue to influence the modern construction building technology.
The rise of cobots or collaborative robots, for instance, has contributed to speed up the pace of work and increase the level of safety in construction sites. These machines have substituted humans in a variety of repetitive and dangerous tasks like carrying of heavy materials; welding, cutting, and handling of construction parts; applying coatings and performing quality checks, and that is just the start. From logistics, quality inspections, and production, cobots have worked alongside humans to help big structural projects get completed with less risk and lower costs.
Autonomous equipment that operate without the need for human control are also becoming prevalent in the industry. These self-driving construction machines are usually employed on sites where contractors need to undergo extremely dangerous undertakings such as digging in overly narrow spaces or conducting work in high-risk areas and the like. Companies like Built Robotics, INTSITE, ASI, and Steer are among the big names are serving industry leaders with these kinds of heavy equipment and vehicles.
Construction firms that have issues of achieving work on schedule and hiring can benefit greatly from industrial robots since they help bridge the gap between labour shortage and productivity.

New Fire Safety Technologies

Before legislation made it a requirement in Australia, fire resistance measures were reactive and sadly were often limited to having a fire extinguisher on standby and an evacuation plan plastered on a covert wall inside the building. Unfortunately, these methods didn’t help much in mitigating impacts of a fire, preventing the occurrence of one, nor ensuring safe egress for occupants.
Thankfully today, plenty of impressive fire safety techniques have emerged. This has through technology as a whole and has come to the building industry as a wave – though not necessarily as part of the current green building technology trend.
Video image smoke detection is one such clever technology, This system detects smoke and fire through the use of VISD technology. In this system, camera images are scanned in a computer to assess if there are signs of smoke or a small fire based on motion, colour, brightness, and contrast. If the computer reads the presence of smoke, the alarm system is then notified in order to suppress the accident and prevent it from worsening, causing damage to human and property, and releasing toxic elements to the environment.
Fire alarm systems are also no longer limited to sounds that cause panic to occupants; newer installations already integrate voice commands as well as messaging for evacuation.
Another good fire safety product is intumescent coatings that seek to provide up to 120 minutes fire prevention of structural steel. Applied in microns not centimetres, this paint system helps stell to withstand heat for longer without warping, ensuring maximum building strength for as long as possible which allows occupants to exit and fire crews to get in. Here at Permax we offer the Nullifire SC900 Series coating which you can learn about.

Computerised Expert Systems

Artificial intelligence now plays a large role in streamlining processes and ensuring accuracy of data and design rendition in the construction field. Different software programs now exist to provide guidance to engineers, architects, and contractors in almost all aspects of their professions; from project management to cost control, logistics to 3D floor plan and modelling, among others.
Generative design building automation systems will create uniformity in designs made by different teams and will rid the inconsistencies derived from different professional renders. Unlike regular 3D modelling, generative design considers aspects of architecture, engineering, mechanical, electrical, and plumbing in the development of the construction project. It intelligently ensures that the perspectives of engineering, architecture, as well as construction professionals are fused together without compromising the best MEP or mechanical, electrical, and plumbing route for most ideal building design.

The Buildings of Tomorrow

Although we can expect to see forward-looking buildings in terms of exterior aesthetics, the future of building construction will be founded on making work more efficient, environment-friendly, safe, and cost-effective by using the aforementioned revolutionary technologies. Advanced robotics and AI will further improve processes in the construction industry, eliminating the lack of accuracy and the minimalism of delays in project management.
At Permax, we can see more software programs will be developed and more robots potentially taking over different tasks that will require high level of precision, or which involve high risk to prevent the risk of human life loss, which remains to be one of the biggest risks in every project.

November 29

Building Defects - What to do | Rectification | Remedial Building Services

We all too often see the ramifications that delayi [...]



Building defects are a common cause of legal dispute between building owners and contractors, as well as strata managers and tenants. Building owners and builders, and owners and tenants are often found quarrelling as to the cause of the defect, whether it is a defect or acceptable wear and tear, and thus who should shoulder the costs associated with rectification works.
We all too often see the ramifications that delaying the required works can cause, so we thought it useful to explain a few key points as regards building disputes and will also look at your legal rights when it comes to fixing defective building work.

Types of Building Defects

In the construction or renovation of a building, a contract usually binds you with your contractor, engineer and architect, and for certain products, your supplier. Yet despite all these overarching contracts, a variety of issues can occur which result in disagreement involving multiple parties. In Australia, the most common disputes arise from defective or poor finished works which could happen during the construction of the building itself; the renovations of the structure; repair works; addition of fittings and other site works.
In a publication by the Melbourne TEC Chambers called Construction Disputes – Australia, Dr. Donald Charrett, an expert Australian barrister practising construction law who (just cause some people have amazing brains)  happened to also be an engineer for over 30 years, said that the most common types of construction disputes “ …are typically about one or more of time, cost or quality.” Aside from citing schedule delays and cost variations, he expressed his thoughts on quality as a source of dispute, highlighting: “Has the Contractor executed the work in accordance with the contractually specified quality, or are there defects that require rectification?”
Where it is due to poor communication, the use of substandard materials, or due to a failure in execution, there are instances when builders, contractors, and construction professionals deliver work, the quality of which is less than what was promised and agreed upon in the contract. It is the proving of this that happens to be the contentious part, however, if you take the time to compile your thoughts and evidence, it makes it easier to argue your point. Of course, should nothing happen, you can then explore your legal options with the help of a lawyer specialising in construction litigation.

The Role of the Regulatory Authorities

As you most probably know, in Australia, the National Construction Code or NCC—a regulatory framework created by the Australian Building Codes Board — is the main legal reference used in settling disputes related to construction work. It "… provides the minimum necessary requirements for safety, health, amenity and sustainability in design and construction. It provides guidance and compliance measures for buildings and building elements ... which must be complied with.” The NCC is the main rulebook followed by professionals in the construction, engineering, and infrastructure sectors, where building owners can also refer to.
Aside from the NCC, local governments in different states and territories also provide prescribed standards for construction work, including design, planning, building utility, and other related aspects. 

What To Do in Building Disputes

It is standard in most contracts to have internal mediation in cases of disagreements in the quality of construction work delivered. If an internal resolution is not possible, the next step is to undergo  external arbitration which seeks a cheaper resolution and alternative to a lengthy and more costly litigation. Although an arbitration is not necessarily required, Australian Standards like the AS4000 and AS4300 require the plaintiffs and defendants to resolve their construction dispute following the procedures in the Arbitration Guidelines, the International Chamber of Commerce Arbitration Rules Australian Disputes Centres, or the Australian Centre for International Commercial Arbitration.
Should your dispute reach the courts, keep in mind that the process for commercial and industrial building defect disputes is different from lodging residential construction complaints. While the latter are tried by a specific body like the NSW Fair Trading or a relevant tribunal in the state or territory, higher-value residential building  complaints and commercial building disputes are tried by intermediate level courts where construction matters are heard or by state supreme courts.
See to it that you lodge your complaint within 6 years from the date of the breach for contract-based claims. If your claiming under a deed, make sure that you file your construction-related complaint within 12 years from the date of the breach, if you're in Victoria.  For accuracy, check the legislation and find the statute of limitation applicable to your state or territory.

Building Defects in Your Structure: Your Legal Options

A construction project may sound complex in nature, with different specialists and skilled workers in the field of engineering, architecture, and construction involved in the overall delivery. However, at the end of the day, it is still a contractual obligation, binding the employer (you) with your contractor and providers of professional services.
In case of a substandard construction work or a defect in a renovation job, the contractor or builder still is liable for a breach of contract since they failed to deliver the work according to the standards and quality required from them by Australian standards. When this happens, you can always take advantage of the remedies made available by law.

  • Award of damages – You, as the plaintiff, will be entitled to general damages award to compensate you for the breach of contract.

  • Claims – This is the sum of total loss or damage you might have incurred due to the building defect. It is calculated as liquidated sum in the form of a debt.

  • Specific performance – You can demand your contractor to perform its obligations under the contract.

  • Injunction – You can file this to prevent your contractor from exercising a right that they are actually not entitled to or to prevent them from not fulfilling their obligations.

There are other legal actions you can take to exercise your right in cases of defective building work. It is still best to consult with your barrister since the remedy applicable to you depends on the circumstances surrounding your agreement with your contractor and the actual damage to your structure.

How to Avoid Disputes Related to Building Defects

Nobody wants to undergo the costly process of settling construction disputes in the courts. Whilst there are no certainties as regards construction – trust us we have seen too much to not be cynical – the key is to be thorough in your investigations, documentation and communication. If you require a third party opinion on your matter before you go back to your builder, feel free to ask a member of the Remedial team for a chat.

November 29

The Advantages of Carbon Fibre | Remedial Building Services

If you are caught out looking for a solution which [...]


Over our many years of business we have seen time and time again (most recently at the Governor Hotel in Macquarie Park) a situation arise where a slab which was designed to be adequate for one intended use, is now no longer adequate for a new activity. As often as not, this change may be driven by a change in tenants (supermarkets moving into a building often cause issues for building managers who need to increase the capacity of the slab), a building upgrade such as more floors being added or a change in use. 
Unlike the construction process, however, adding more steel to the concrete is not a viable solution. What is however, is the application of carbon fibre to the underside of the area. 
Working with our qualified structural engineers to determine the ratio of carbon fibre strips needed, we have successfully applied this solution to countless structures - from bridges, to commercial facilities, to carparks and more. 
If you are caught out looking for a solution which can add strength to your existing slab, the advantages of Carbon Fibre have been well documented for many years and we have many case studies which we will be happy to discuss with you.
Give us a call and we can walk you through it.

This blog was posted in Carbon fibreCommercialStructural repair

November 29

AWA Tower, Sydney | Remedial Building Services

Located on York Street in Sydney’s CBD, the AWA to [...]


Located on York Street in Sydney’s CBD, the AWA tower was once the city’s tallest structure and home to a large radio tower (still visible today). The fifteen storey building, built in 1939, is a classic example of the Art Deco design era and is decorated with symbols of communication, many of which are now heritage listed.

A combination of failing structural components and extended exposure to the elements meant that extensive restoration work was required in order to preserve this iconic building. Remedial Building Services was called in to provide our expert restoration services. The list of issues to be rectified included:

  • A faulty roof membrane
  • Damaged flashings
  • Brick growth due to lintel corrosion
  • Mortar replacement to restore a heritage listed Pegasus decoration

The Rectification Process

The rectification of this building presented several specific challenges, the first of which was the fact that the lifts were too small to transport building materials to the top of the building. The Remedial team overcame this issue by carrying all materials and equipment through the internal fire stairs.

Initial reports had identified brick growth due to corroded lintels on the building’s façade. However, upon further investigation by the Remedial team, it was discovered that in fact, a number of bricks had delaminated to the extent that they needed to be replaced and new brick ties also needed. Remedial brought these latent issues to the attention of the building’s engineers who gave approval to carry out the required works. The team worked efficiently and without incident to install new lintels and brick ties and replace delaminated bricks with new bricks which had been specially sourced to match the existing façade. The final element to be addressed was the Pegasus feature which was fastidiously restored to its former glory.

The Roof Membrane

The roof of this historic building contained a bitumen membrane which, after years of exposure to sun, wind and rain, had begun to fail, causing water leakage throughout the building. With five different roof elevations, the removal of the original roofing was a complicated task which required a combination of jackhammers, scrapers and hand chisels, with multiple teams working simultaneously to speed up the process. Once the roofing had been removed, the team worked to replace the damaged flashings before installing a waterproof torch-on membrane to the roof. The platform under the tower proved to be the most challenging element, requiring the Remedial team to maintain a delicate balance between protecting the historically significant foot of the tower while also ensuring the roofing membrane was applied seamlessly.

All work was completed without incident, within the promised timeframe and with minimal impact on residents. The AWA tower is now structurally sound and completely compliant while still retaining its historic integrity.

November 12

What are your Building Issues? Remedial Building can help! | Remedial Building Services

We know that not everyone understands the building [...]


So you have a water leak that is a pain when it rains, or maybe you have rust stains on the façade of your building that look ugly, or maybe it is brickwork or render that is bulging, fretting or cracking. What you may consider to be a minor inconvenience could actually be a warning sign that you have a larger structural issue in your structure.

Rectifying the issue early has been proven to save money as the issue is not as widespread as it will develop to be. This is because once a structure has a leak, or concrete cancer, more water will reach the affected (and other) area causing more rusting, displacement of concrete and cracking.

Some of the tell-tale signs you have structural issues include:

  • Rust stains on the edge of your building that originate at random
  • Cracks which appear either on internal or external walls and go up or down the building in a step-like manner
  • Water leaks which cannot be tracked to an exact area above the leak
  • Brick growth/expansion which causes displacement and/or windows and doors to not fit as soundly as before
  • Lintels and arch bars (above doors and windows) show signs of rust and cracking of the brickwork
  • Balconies which are cracking and leaking
  • Large pieces of concrete are falling from the structure


Whether it is due to the age of your building, exposure to the elements or poor workmanship and materials during construction, there are a number of factors which could be the cause of your structural problems. Many of the common issues which lead to large problems include:

  • Poor workmanship during construction. Often builders will leave reinforcing too close to the surface allowing surface moisture to seep far enough into the surface. This leaches the concrete and causes a chemical reaction on the steel below it
  • Use of incompatible materials in close proximity to each other. These cause a chemical reaction which causes rusting
  • Mechanical wear and tear
  • Damaged concrete slabs which allow water to penetrate through to the reinforcing below
  • Installation of new equipment – often on rooves – such as air conditioning units or anchor points. These are often drilled through water proof membranes and are not sealed properly after thus allowing water to ingress to the metal below.
  • Inadequate flashings. Where flashings are installed poorly, or not high enough into the cavity, water can penetrate through to the cavity. Even if they were installed well, if drains are not cleared properly then during heavy rains, water can rise above the flashing, thus leaking into the cavity


Whether the issue is caused by water leak, age or construction flaw, the base fact is, what was or is a small problem may develop into a larger underlying issue which affects the structural integrity of your building. The earlier you take steps to the correct the latent issue – not just treat the obvious signs – the less advanced the issue becomes.

Many people often think that patching the issue will solve it, but once rust has started to affect steel, it will continue to expand, leading to further fracturing and ongoing issues. The issue will also continue to affect new areas, whether it is more areas starting to rust, or worsening leaks. Ideally, as soon as you notice an area with an issue as described above, you should call us in to investigate the issue and advise how wide-spread or otherwise it really is. Doing so could save you tens of thousands of dollars into the future and rectification works which are finished much faster.

If you have concerns about your structure, contact us today.

November 12

Balcony Repair | Remedial Building Services

Whether it is undertaken in isolation or part of a [...]


Whether it is undertaken in isolation or part of a larger project, balcony repairs may range from a relatively simple retiling, to a more complex waterproofing project designed to rectify a leaking balcony.

Leaking balconies are both relatively common and extremely serious because of their potential to cause substrate damage and water ingress into the interior of the property. Additionally, leaking balconies can represent an extreme liability due to the safety risk they pose to tenants. Some of the risks of leaving a leaking balcony untreated include:

  • Water penetration of the surrounding external walls
  • Visible water penetration in dwellings below or adjacent to the balcony
  • Damage to electrical systems causing power outages or dangerous charges
  • A rare, yet highly dangerous balcony collapse

Remedial staff are experienced in identifying the origin of all leaks, implementing the latest waterproofing technologies,and finally restoring the balcony to a safe and presentable condition. If your balcony contains planter boxes, we also offer specialised planter box replacement services to deliver a holistic solution for your balcony.

October 31

Concrete Repair | Remedial Building Services

Don't let anyone fool you. Concrete repair is NOT [...]


In short, Concrete spalling is the technical term which describes concrete which has been put under stress and has started to crack. this stress is most often caused by structural factors such as building movement or rust within the structural reinforcing.  As steel rusts it expands within the concrete (it can expand up to 7 timees its original size) causing the concrete to swell and - given concrete is not flexible - crack. As it cracks it becomes brittle, allows moisture in which reacts with the steel further, accelerating the process.

Concrete spalling is also referred to as concrete cancer by many. The signs of spalling  include:

  • Crazing and cracking concrete
  • Rust stains which seem to leak out from within the concrete
  • Bubbling (also called Plating) of concrete render
  • Drummy concrete. Concrete which appears solid, but when tapped shows evidence of air trapped behind it meaning it has started to delaminate (split into layers) 
  • Leaks which appear in overhead concrete surfaces


Concrete spalling – especially on the outside of a building – not only looks terrible, but it is potentially dangerous too. Over time, and with increased exposure to the elements, untreated pieces of concrete may fall from your structure. The risk is it falling and damaging property, or even worse, hitting a person walking below.


Many people (incorrectly) believe that a coat of paint, or in "more extreme" circumstances, replacing the affected concrete will suffice to fix the issues described above. Truth is though, that concrete repair requires more than tese aesthetic approaches. Whilst these approaches fix the visible signs, all they are doing is masking the real issues underneath. It is the same as putting a band-aid on a gravel rash without removing the debris first. You have treated the signs of trouble, but you are allowing the wound to fester and cause ongoing complications which require even more work. 

Concrete repair requires a methodological approach to:

  • Identify the visible signs
  • Understand the underlying causes
  • Develop a repair methodology which treats the issues and which ensures compatibility with any existing systems or materials
  • Implementation of the repairs
  • Ongoing supervision
  • Guarantees as to the quality of work. 


Like anything, there are risks in not doing something correctly the first time. With concrete cancer it is essential that you make the correct decisions and undertake the correct procedures the first time, as if you don't there can be ramifications inclusive of:

  • ​Incompatible metals being used in close proximity to each other, thus causing a reaction which allows water into the slab

  • Ongoing structural damage inclusive of shifting walls, cracked bricks, plumbing issues, windows which crack, doors which are not plumb, and so on.
  • Increased costs associated with ongoing repair work
  • Increased costs in longer term due to deferred maintenance 
  • Damage to property or life from potential falling concrete


If you have concerns your property requries concerete repair, contact us. We specialise in the repair of concrete for residential and commercial strata buildings, commercial buildings, and industrial complexes. 

October 31

Why Remedial | Remedial Building Services

Providing specialist structural building repairs t [...]


In the 45 plus years we have been in business, we have established ourselves as the pre-eminent supplier of specialist building services encompassing structural repair, Home Owners Warranty claim repairs and commercial flooring services.

Where we’ve watched competitors come and go, we have stayed strong, which we attribute to three core principles:

  • Intimate understanding of the factors which lead to structural and safety concerns;
  • The recommendation and application of solutions which eradicate the underlying problem and renew it to a desired state; and
  • Transparency in our communication with clients.

 Whilst our experience has seen us travel across Australia on odd occasion we are predominantly focussed on providing the best services for NSW. Today, our service strengths include commercial floor coatings, concrete repair, structural repair and Home Owners Warranty insurance claims.

Over the years our business has grown and with it our staff has expanded. Today, our senior management have amassed close to 200 years collective experience, which makes us confident in our ability to provide to you the best specialist solutions possible.

For more information on Remedial Building Services, please contact our offices, or feel free to download our brochures.