Waterproofing Inspection Brisbane & SEQ
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Waterproofing failures are the most common and most expensive defect in new Queensland homes. Once tiles go on, the membrane is hidden forever. This inspection is the only opportunity to verify it before it's too late.
QBCC Lic. 1318443 | Same-Day Reports On Site | QBCC Licensed · Every Inspection | No subcontractors
What is a Waterproofing Inspection?
A Waterproofing Inspection — also called an Enclosed or Lock-Up Inspection — is carried out after external cladding, windows and doors are installed, and before tiling begins in wet areas. It is the critical checkpoint for waterproofing membrane installation in all wet areas including showers, bathrooms, laundry and balconies.
Waterproofing failures are one of the highest-consequence defect categories in new Queensland homes. A failed shower membrane that is not identified before tiling means tiles must be removed, the membrane replaced and the wet area retiled — a major rectification involving multiple trades and weeks of downtime. Identifying non-compliant waterproofing before tiling is typically a quick fix for the waterproofing contractor.
VG Inspect checks all wet area waterproofing against NCC Volume 2 Part 3.8.1.1, AS3740 (Waterproofing of Domestic Wet Areas) and the QBCC Standards and Tolerances. We also inspect external cladding, brickwork, roof completion, windows, doors and all external elements at this stage.
This inspection is also the appropriate stage to check that your frame damage from plumbing and electrical installation has been rectified — issues that are now hidden behind plasterboard but still accessible in wet areas before tiling.
The VG Inspect Difference
Unlike multi-inspector franchise operations, A VG Inspect QBCC-licensed inspector attends every inspection. One inspector. One standard. Every time.
QBCC Licence 1318443 — your guarantee of who is walking your site.
What we check on every Waterproofing Inspection
- ✓Shower membrane application — height, coverage and junctions
- ✓Bath and laundry waterproofing membrane continuity
- ✓Balcony and alfresco waterproofing and drainage falls
- ✓Wet area tile substrate condition
- ✓External cladding completion and clearances
- ✓Brickwork, mortar joints and articulation joint condition
- ✓Roof cladding, flashings and valley condition
- ✓Window and door seals, head flashings and drainage holes
- ✓Gutter installation, falls and downpipe connections
- ✓External gaps and penetration sealing
- ✓Plumbing pipe penetration waterproofing in wet areas
- ✓Site drainage and finished ground levels
When to book your Waterproofing Inspection
Book your waterproofing inspection after wet area membranes have been applied and cured but before any tiling commences. Your builder should notify you when waterproofing is complete.
Construction stage timeline
Waterproofing Inspection
From $550
Includes detailed PDF report with photos
Same-week availability across Brisbane & SEQ
Book an InspectionBook all 5 stages together and save — ask us about our stage inspection package.
See exactly what you get
Download a sample Waterproofing Inspection report and see the level of detail before you book.
View Sample Report →5.0 on Google
QBCC Licence 1318443 · Fully Insured · No Subcontractors
A VG Inspect QBCC-licensed inspector attends every VG Inspect inspection — no subcontractors, no junior staff. QBCC Licence 1318443.
VG Inspect covers all of SEQ
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Waterproofing Inspection FAQs
How much does a waterproofing inspection cost in Brisbane?
VG Inspect waterproofing inspections start from $550 including your detailed PDF report with photos and NCC/AS3740 references for every defect found.
When should I book a waterproofing inspection?
After wet area membranes have been applied and cured but before any tiling begins. Contact your builder to confirm when waterproofing is complete and book immediately — the tiling contractor can arrive quickly.
What if non-compliant waterproofing is found?
Non-compliant waterproofing must be rectified before tiling proceeds. Your VG Inspect report documents every defect against AS3740 and the NCC — giving you the formal basis to require rectification.
Why is waterproofing so important to inspect?
A failed shower membrane discovered after tiling requires full tile removal, membrane replacement and retiling — a major rectification involving multiple trades and weeks of downtime. Identifying the defect before tiles go on is typically a quick fix for the waterproofing contractor.
Do you inspect balcony waterproofing as well?
Yes. VG Inspect inspects all wet area and external waterproofing including showers, bathrooms, laundry, balconies and alfresco areas.
Also available from VG Inspect
Ready to book your Waterproofing Inspection?
From $550 · Same-Day Reports On Site · QBCC Lic. 1318443