Waterproofing Inspections in Logan
The waterproofing inspection is booked after the wet-area membranes are applied but before tiling, which seals them away for good. For Logan homes from Browns Plains and Crestmead to Cornubia, our builder-inspectors check the shower, bathroom, laundry and balcony membranes against AS 3740, including coverage at wall and floor junctions, upturns at hobs and doorways, treatment of penetrations and the falls to the floor waste. We confirm the shower floor drains at a gradient of at least about 1:80 and that bond breakers and primers were used where needed. Water damage is among the most disruptive and costly problems in a new home, so an independent check while the membrane is still exposed is one of the highest-value inspections in the whole build.
Book an InspectionWaterproofing Inspection from $550 · Same-day digital report · QBCC Licence 1318443 · Call 07 3180 8041
Why a waterproofing inspection matters in Logan
Waterproofing is the highest-consequence trade in the whole build — almost every leak a home ever has starts at a wet-area membrane, and once the tiles are on, a defect here means ripping them up to fix it.
At Logan waterproofing stage we commonly check membrane coverage to AS 3740, upturns at hobs, doorways and walls, falls to the floor waste with a shower gradient of at least 1:80, sealing around tap and waste penetrations, and bond breakers at junctions. Flat or ponding areas on balconies and laundries get particular attention.
Local conditions in Logan
Logan's house-and-land growth stretches across Browns Plains, Crestmead, Beenleigh, Eagleby and the newer estates at Bahrs Scrub and Yarrabilba. A lot of it is reactive clay and cut-and-fill batter sites, so footing design, slab edge and frame bracing matter more here than on a flat sand pad. Our builder-inspectors work the stages where defects get covered up and send a clause-referenced photo report the same day.
What we check at the waterproofing stage
Before tiling, we check the wet-area membranes — the single most common source of future leaks (AS 3740):
Membrane (AS 3740)
- Membrane coverage to walls, floors and hobs/upturns
- Falls to the waste (shower floor ≥ 1:80)
- Penetrations, bond breakers and corner detailing
Preparation
- Substrate preparation and primer
- Shower screen and waste set-out
- Overflow and balcony/external wet-area detailing where applicable
Every item is photographed and referenced to the relevant Australian Standard, NCC clause or the QBCC Standards and Tolerances Guide, then delivered in a same-day digital report you can hand straight to your builder. See the full waterproofing inspection details, or read how to choose a new-build inspector in Queensland.
Other inspection stages across Logan
Most owners book several stages so defects are caught before the next trade covers them. Alongside the waterproofing inspection, we also inspect across Logan:
Suburbs we cover in Logan
We inspect new builds across the whole Logan City Council area, including:
Inspection pricing in Logan
Waterproofing Inspection FAQs — Logan
When is waterproofing inspected in a Logan build?
After the membrane is applied and cured but before tiling begins, so the entire membrane can be checked while it is still exposed.
Why is the waterproofing stage considered high risk?
Membrane faults cause leaks that are costly to fix once tiling is on. Checking falls, upturns and penetrations now helps prevent that outcome.
Do you measure shower falls?
Yes. We confirm the shower floor falls to the waste at a minimum gradient of around 1:80, with correct upturns under AS 3740.
Your inspector
Your Logan inspection is carried out by a VG Inspect builder-inspector — a QBCC-licensed builder who inspects new builds full-time. Every VG Inspect inspector is a builder first and holds their own QBCC licence, and every report is checked before it's sent. You can verify any licence on the QBCC online licence search. VG Inspect holds a 5.0 rating across over 100 verified reviews and is fully insured.
Book your Logan waterproofing inspection
Give us the date as early as you can — builders often give short notice. Same-day report.
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