Certified Waterproofing | Inspection & Consultancy

Renovating a bathroom, balcony or laundry?
An independent waterproofing inspection before the tiles go on. Pre-Tile Inspection →

Already tiled — and council, a certifier or a buyer wants proof?
Independent evidence reports for missing waterproofing certificates. Evidence Report →

Applying for a Building Information Certificate?
What council can ask for, what the seven-year rule really covers, and why wet areas stall applications. BIC & Waterproofing →

Services

What We Do

Waterproofing membrane inspection with measuring tape on concrete substrate

Pre-Tile Inspection

We inspect the waterproofing after the membrane goes on and before tiles cover it: coverage, corners and junctions, where the membrane ends and the slope to the drain, checked against AS 3740 or AS 4654.2, whichever applies. Anything we find that doesn't match the standard is flagged in writing while it can still be fixed.

Waterproofing design drawings and compliance documentation on desk

Evidence Reports for Tiled Rooms

The room is already tiled and a council, a certifier or a buyer wants proof. We record what can still be established: material at accessible drains and where pipes pass through, the slope of the finished floor, junctions and seals, moisture indicators, and whatever records exist. The report says plainly what can't be verified without opening up.

Leak Investigation

We look for where the water is getting in without opening anything up: moisture readings, drains, junctions and seals, and with your agreement a simple tap, waste or spray test. We put what we find in writing and, if you ask, give our technical opinion on the likely cause.

Compliance documentation and inspection reports on desk

Flood Test Records

Your plumber or waterproofer runs the flood test, and we observe and record it from set-up to drain-down. On a room that's already tiled, the engineer on our team can attend and, if the results support it, issue a signed Engineer's Statement on Flood Test Results. It covers only what was tested (a floor test does not test the walls), it is not a compliance certificate, and whether to accept it is the council's or certifier's decision. How a flood test record works

When the Paperwork Is the Problem

No certificate, and someone is asking for one?

Selling or buying — wet-area work flagged The building report said “no certification sighted” and settlement is waiting. An independent evidence report records what can still be established without pulling up the tiles. Whether that is enough is for the buyer and their solicitor to decide. Still deciding whether to buy? Read what an inspection can still record in a finished home.

Council or a certifier is asking A Building Information Certificate application, an occupation certificate, unauthorised works — and the installer who could certify is long gone. Where a certifier wants more than a visual inspection, a recorded flood test is one method you can propose.

Renovating now, not yet tiled The cheap version of all of the above: record the waterproofing before it disappears under tiles, so this page is never about you.

Process

How We Work

Consult

Tell us what the evidence is for: who is asking and what they need to decide or, before tiling, when your tiler starts. We review whatever records you have and quote a fixed fee before anyone steps on site.

Inspect

On site we photograph, measure the slope to the drain and take non-destructive moisture readings at drains, junctions and where pipes pass through. Before tiling we inspect the membrane itself. After tiling we record what can be reached.

Report

A dated written report that keeps what the existing records say separate from what we observed, says what couldn't be verified without opening up and, if you ask for it, gives our technical opinion on the evidence. Ready to forward as it is, or to drop into an engineering report.

Why Us

What Sets Us Apart

Inspection, testing and written reports.
We put what we find in writing and, if you ask, give our technical opinion on it. Whoever asked for the evidence decides whether to accept it.

Standards-focused inspection Every inspection is referenced to AS 3740 for internal wet areas or AS 4654.2 for balconies and other external areas, whichever applies.

Independent of the work We're consultants. We don't do the waterproofing or the repair work on the jobs we inspect, and every photograph, reading and measurement is dated.

Evidence first, opinion on request Photographs, readings and measurements come first, and we keep what the existing records say separate from what we observed. If you ask for it, we give a technical opinion on what the evidence shows. On Class 2 apartment buildings, that opinion comes through the engineer on our team.

Works alongside your process For builders, developers and design teams: photographs and findings formatted to drop straight into your own report.

Our Team

Who We Are

Jimmy Tran

Waterproofing Consultant

Waterproofing inspection and consultancy specialist with extensive experience across residential, commercial, and government projects. Licensed waterproofing contractor. AIW member.

Kevin Ly