
Testing Services
Design Compliance Auditing
Design Compliance Auditing – Get It Right Before You Build
Waterproofing failure often starts long before installation — it begins in the design.
Our Design Compliance Auditing service ensures your waterproofing details, NCC classifications, and specifications are fully compliant and buildable before work begins.
We’ll review your drawings, specifications, and interface details against AS 4654, AS 3740, AS 4858, and best‑practice guidelines (BS 8102) to spot issues early — before they become defects onsite.
Our Audit Process
1. Independent review of all waterproofing details and specs.
2. Check alignment with Australian Standards and manufacturer requirements.
3. Provide a comprehensive report with risk insights and practical solutions.


Why It Matters
Avoid hidden design flaws that cause leaks or warranty loss.
Strengthen compliance and documentation for certification.
Fix potential issues before construction begins, not after.
Backed by Australia’s trusted waterproofing authority.
Design smarter, build safer.
Request Design Compliance Auditing Services
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Why Independence Is Everything
No product affiliations
We don’t sell membranes, coatings, or systems. Our advice is based on what’s right for your project, not what earns us a commission.
No contractor relationships
We don’t install and we don’t subcontract to installers. When we inspect or test, there is no commercial pressure to approve.
No conflicts of interest
When our report says a membrane has failed, it’s because the data says so. Our NATA accreditation means our testing has legal standing.
NATA Accredited
Accreditation No. 21463 | Site No. 25832
Accredited for testing and inspection of waterproofing systems.
AIW Member
Australian Institute of Waterproofing
David Previte, Founder — President of the Australian Institute of Waterproofing.
MBA NSW
Master Builders Association of NSW