An independent waterproofing inspector checks the waterproofing in your renovation while it can still be seen—after the membrane is applied, before the tiles cover it. We record what we find, whether you're the homeowner or the builder. Photo evidence report, usually the same or next business day once the inspection is complete.
Book a Pre-Tile Inspection or call 0499 288 304 — from $349 + GST, Greater Sydney
It's also the only part of your renovation that gets sealed away forever. Wiring can be re-opened. Plumbing can be traced. But once your tiler starts laying, the waterproofing underneath can never be seen again — and if it fails, it fails years later, through your ceiling, your floor, or the room below.
Most homeowners tell us the same thing: they trusted their tradie, saw the membrane go on, and never thought to ask for a flood test or an independent check. "That didn't even come to my mind" is the sentence we hear most — usually after it's too late to matter.
Waterproofing done, tiler booked? We work to that window — usually within 48 hours. If you're still planning, we'll tell you exactly when in the schedule to slot us in.
Membrane coverage, corners and junctions, terminations, falls to the waste — checked against AS 3740, the Australian standard for wet area waterproofing. We can also attend and document your waterproofer's flood test.
A dated, photo-documented record of exactly what's under your tiles — with anything that doesn't match the standard flagged in writing, while there's still time to fix it.
You're not just buying an inspection. You're buying the only record of your waterproofing that will ever exist.
A confident waterproofer has nothing to hide — and a clean independent report is written proof their work met the standard. It protects them as much as you.
You wouldn't buy a house without a pest report. An independent check at the cover-up stage is the same familiar peace-of-mind step — not an accusation.
In our interviews with renovators, most said the same thing: if a tradie objects to an independent set of eyes, that itself tells you something worth knowing.
Fixed prices. Travel across Greater Sydney included. Report usually the same or next business day once the inspection is complete.
Already tiled — and council, a certifier or a buyer wants waterproofing evidence? That's a different job with its own process: see the Existing Wet-Area Evidence Report.
No. A general building inspector looks at everything briefly; most never see your waterproofing at all, because by the time they're engaged it's under tiles. We are waterproofing specialists who inspect at the one stage a generalist misses — after the membrane, before the tiles — and check it against AS 3740, the specific Australian standard for wet areas.
The moment your waterproofer gives you a date. The window between the final membrane coat and tiling is usually one to two days. Tell your tiler you have an independent inspection booked — it's one visit, it doesn't hold up the job, and we schedule around them.
You get it in writing, usually the same or next business day once the inspection is complete, with photos, referenced to the standard — while it's still an easy fix for your waterproofer. That's the whole point of checking before the tiles go on. We flag and document; your waterproofer rectifies; you can book a re-check if you want the fix verified.
Your waterproofer conducts the flood test — it's their work being tested. We attend, verify it's set up properly, and document the result independently. That distinction is deliberate: it keeps our report independent, and it means nobody can later claim the test wasn't done right.
No. We don't quote repairs and we don't take rectification work. Homeowners and builders can commission a report. Whoever pays for it, we report what we find and what we can't confirm.
Certified Waterproofing is run by licensed waterproofing professionals (NSW licence 460471C) and members of the Australian Institute of Waterproofing, inspecting across Greater Sydney. We document what we observe against the standard — clearly, photographically, and independently.
Tiling dates move fast — tell us where your renovation is up to and we'll confirm your window within one business day. No payment until the inspection is locked in.
Prefer to talk it through? Call Kevin on 0499 288 304