
Australia’s Independent Waterproofing Authority
Protecting Buildings.
Preserving Integrity.
Independent design, inspection, testing, and remediation from the experts trusted by developers, builders, and strata across Australia.
What We Do
Four specialised services. One independent authority.
Design it once. Build it right.
Independent waterproofing design that prevents defects before they happen.
1000+ projects designed
See what others miss.
On-site inspection at every critical stage.
10,000+ inspections completed
Trust the data, not the promise.
Independent flood testing and diagnostics.
NATA-accredited organisation
Fix it properly. Fix it once.
Expert defect resolution when things go wrong.
$283M mitgated defects
10,000+
Inspections
1000+
Designs
$283M
Mitigated Defects
3,600+
Projects
Trusted By














7 days ago
Prior to finding Aaron, we had engaged another company to waterproof our bathrooms who used incompatible products. This caused many delays and much stress. I eventually found Aaron through the Australian Institute of Waterproofing. He is licensed and bound by their code of conduct. I checked his licence also through the Department of Fair Trading and found that the company licence was registered and current. I researched all the other companies on the AIW website and found that Aaron had the best reviews. I should also mention that I also interviewed three other waterproofing contractors before going to the AIW website, who had been recommended to me, but they did not have the right attitude or standards of excellence. Aaron and his team carried out the remedial works and re waterproofed 3 bathrooms and an external deck in our home. The external deck involved the coordination of the removal of a door to run the membrane underneath it to a waterstop angle. All of the work was certified and met Australian Standards. The quality of the workmanship was high. Aaron's communication and diligence is outstanding. His standard is excellence. The process involved many steps and throughout Aaron was professional and cheerful. The whole team were a pleasure to have in our home. They were considerate and were thorough in the detailing of their workmanship. I highly recommend Sydney Waterproofing Services Pty Ltd.
1 month ago
We alongside Anthony and his team on a small, yet complex construction project and were consistently impressed by their professionalism, technical knowledge, and responsiveness throughout the process. Their inspections were thorough, practical, and delivered with a strong understanding of construction sequencing and site constraints. Rather than simply identifying issues, they worked collaboratively with the project team to provide clear guidance and help achieve compliant outcomes without unnecessary delays. Communication was always prompt, reports were detailed and easy to interpret, and their attention to detail gave the team confidence that critical waterproofing works were being properly assessed and documented. A reliable and knowledgeable team who added genuine value to the project. We would highly recommend their services to others in the construction industry.
2 months ago
I can't recommend Waterproofing Integrity enough, especially Jean-Pierre! We were dealing with an absolute nightmare of a leaking balcony where the builders and project managers kept making excuses and giving us the runaround. I reached out to Waterproofing Integrity, and Jean-Pierre provided an independent inspection. He was incredibly thorough and found all the hidden issues the builders tried to sweep under the rug – like missing drainage flanges, unsealed penetrations, and blatant building code breaches. But what was the best was his ongoing support. When the project manager tried to aggressively dismiss the report, Jean-Pierre stepped right up, stood by his findings, and gave me the exact technical advice I needed to fight back and demand a proper fix. If you're dealing with dodgy builder excuses or stressful water leaks, do yourself a favor and call this team. Amazing service, bulletproof technical knowledge, and they genuinely care about helping you get a fair result.
WHO WE WORK WITH
Why Independence Matters
We have no product affiliations. No installer partnerships. No conflicts of interest. Our advice is purely expert opinion: defensible, evidence-based and aligned only with your project’s best outcome.
That independence is why builders, developers and asset owners trust Waterproofing Integrity on their most complex and legally sensitive projects.
LATEST RESOURCES
PROJECT EXPERIENCE
Sectors We Cover
NATIONAL COVERAGE
Offices Across Australia
1300 025 944Contact for: Sydney and Southern NSW, ACT, SA, WA
49C, Slough Business Park, Cnr Holker St & Silverwater Rd,
Silverwater NSW 2128
Contact for: Newcastle, Central Coast and Northern NSW
13/56 Industrial Drive, Mayfield East NSW 2304
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