Australian Waterproofing Standards Explained – What Every Sydney Homeowner Must Know?
Why Australian Waterproofing Standards Matter for Every Home?
Australian Waterproofing Standards are the national guidelines that ensure your property is fully protected from water damage. Whether it’s your bathroom, balcony, or rooftop — using licensed applicators who follow these standards is not optional. It’s required by law.
At Hills Waterproofing, we strictly follow both AS 3740 and AS 4654 to ensure long-term durability, compliance, and peace of mind for all our clients.
What Is AS 3740? Internal Wet Area Waterproofing Standard
AS 3740 is the Australian Waterproofing Standard for internal wet areas, including:
Bathrooms
Toilets
Laundries
Showers
Kitchens
Key AS 3740 Requirements:
Full waterproofing of shower floors and walls
Floor-to-wall junction sealing
Water-resistant materials used throughout
Application by a licensed waterproofing technician
✅ Why It Matters: Meeting AS 3740 ensures your bathroom waterproofing is legally compliant and structurally sound.
Why Compliant Waterproofing Services in Sydney Matter
Hiring a contractor who doesn’t follow Australian Waterproofing Standards puts your home at serious risk:
Leaks and moisture damage
Mould and health hazards
Costly structural repairs
Voided insurance claims
That’s why all waterproofing services by Hills Waterproofing come with full compliance and certification.
- ✅ We strictly follow AS 3740 and AS 4654
- ✅ All technicians are fully licensed and insured
- ✅ We use premium Australian products like Sikaflex and Enviro Systems
Frequently Asked Questions About Australian Waterproofing Standards
🔹 Are AS 3740 and AS 4654 legally required?
Yes. These are part of the National Construction Code and required for any new build, renovation, or remedial waterproofing work in Australia.
🔹 Can I do waterproofing myself and still comply?
No. Waterproofing must be applied by a licensed contractor to be considered compliant under Australian Waterproofing Standards.
🔹 How do I know if my waterproofing meets the standard?
At Hills Waterproofing, we provide compliance certificates and only use approved methods and materials.
Our Fully Compliant Waterproofing Services in Sydney
We offer end-to-end waterproofing solutions that comply with both AS 3740 and AS 4654:
✅ Bathroom waterproofing
✅ Balcony and rooftop sealing
✅ Internal wet area sealing
✅ Retaining walls & planter box protection
✅ Leak detection & remedial waterproofing
📍 Servicing all Sydney suburbs including Hills District, Inner West, Northern Beaches, Eastern Suburbs & beyond.
Final Thoughts – Choose Waterproofing That Meets the Standard
Don’t trust just anyone with your waterproofing. Choose licensed professionals who understand Australian Waterproofing Standards inside and out.
At Hills Waterproofing, we make sure your property is sealed, protected, and 100% compliant — every time.
- 💧 Waterproofing services Sydney can trust
- 🛠️ Backed by AS 3740 & AS 4654 compliance
- 🔒 Fully insured, licensed, and local
Ready to protect your home from water damage in Sydney?
Get your free quote today!
📞 Call us at 0410 570 721
📧 Email: info@hillswaterproofing.com.au
