The Best Waterproofing Solutions In The Business

Commercial - Remedial - Residential

✓ Bitumen Torch on

✓ PVC and butynol sheet accredited

✓ Mechanical injection

✓ Hydrostatic waterproofing

✓ JN Newton Accredited

✓ Remedial waterproofing

✓ Water ingress prevention

We are licensed Waterproofing experts servicing Sydney, Canberra and Newcastle. Our comprehensive solutions include:

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SYDNEY

CANBERRA

NEWCASTLE

Choose Optimo Waterproofing – Licensed & Guaranteed Waterproofing Experts

Don’t risk costly water damage or failed building inspections — choose a licensed waterproofing company you can trust. At Optimo Waterproofing, we provide professional waterproofing services for residential, commercial, construction, and remedial projects across Australia.

We are accredited in the following:

✓ Liquid Membrane
✓ Bitumen Torch On
✓ PVC Sheet Welding
✓ Mechanical Injection
✓ Epoxy Flooring

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Our Services

✓ Reliable fully compliant waterproofing services in NSW:

We provide professional residential, commercial and remedial waterproofing solutions completed strictly in accordance with AS 3740:2021 (Waterproofing of Domestic Wet Areas) and AS 4654.1 (Waterproofing Membranes for External Above-Ground Use).

✓ Specialised and fully licensed waterproofers:

We specialise in bathrooms, balconies, rooftops, laundries, retaining walls, planter boxes, and carparks, delivering durable membrane systems designed to withstand Australia’s harsh climate. Whether you need waterproofing for a new build, renovation, strata property, or leak repair, we ensure every project meets current Building Code requirements and manufacturer specifications.

✓ High quality materials:

Using high-quality liquid and sheet membrane systems, we provide thorough surface preparation, certified installations, and detailed compliance documentation for builders, strata managers, and homeowners.

“I bought a new home with a serious pre-existing waterproofing issue and called on Noah and Lucas and team to help. They were amazing, great workmanship, communication and completed the job professionally, efficiently and seamlessly, including helping me navigate some tricky strata approval processes. Really happy with their work and would highly recommend them.”
— Steve Zuckerman, Google Review
“We first contacted Noah and his team after experiencing a serious water leak from our upstairs bathroom that seeped through into the kitchen ceiling. When a building expert came to inspect the damage, he diagnosed that the entire bathroom needed to be waterproofed and re-tiled. He recommended Noah to us, as he had used him personally for his own bathroom waterproofing.

From start to finish, the work was nothing short of spectacular. The Optimo team were incredibly professional, punctual, and exceptionally clean throughout the entire process. They completed the bathroom waterproofing and tiling to the highest standard, leaving everything spotless at the end of each day...
We could not be happier with the outcome and could not recommend Noah and the Optimo team more highly. They turned what was initially a very stressful situation into a smooth and positive experience, and we are grateful for their outstanding service.”
— Luli cotter, Google Review
“Optimo Waterproofing came as a recommendation from another happy customer, and I can see why.
The team at Optimo were professional, prompt and delivered a high quality service. Noah was absolutely lovely to deal with and kept me in the loop every step of the way. The team had a big task of waterproofing my basement garage which had damage from years of leaking. They transformed the space and delivered exactly what they promised. They even back their workmanship with a guarantee, which not many businesses do these days. Can absolutely recommend these guys”
— Georgette Aboumelhem, Google Review
“Noah and his team were referred to me and my dealings with him and his company was exemplary. We had been let down previously on a major waterproofing job required at our house. Not only did Noah and his team fix the issue but did so on time and in full. Could not recommend more highly.”
— Mark Jones, Google Review