Enclosed & Waterproofing Inspection
Critical inspections at lock-up stage to verify waterproofing and building envelope integrity before it's hidden behind walls.
Book before tiles are laid
Why Waterproofing Inspections Matter
Waterproofing failures are one of the most costly defects in new construction. Once walls are plastered and tiles are laid, it becomes extremely expensive to rectify waterproofing issues.
Our inspection at the enclosed/lock-up stage verifies that waterproofing membranes are correctly applied to wet areas, flashings are properly installed, and the building envelope will protect against water ingress.
Water damage claims account for over 40% of building defect disputes. Prevention is far cheaper than cure.
What's Included
- Wet area waterproofing membrane inspection
- Shower recess and bathroom compliance
- Balcony and external waterproofing check
- Window and door flashing verification
- Roof sarking and ventilation assessment
- External cladding and weatherboard review
- AS 3740 Waterproofing compliance check
Includes GST
Common Defects We Find
Real examples from our inspections
Drainage and site water management
Holes to base - membrane defect
Waterproofing membrane application
Damage to waterproofing
Cladding rake inconsistent
Level check at doorway
External membrane protection
Roof gable incomplete
Cladding installation check
Laundry jamb below water stop
Shower base waterproofing
Frequently Asked Questions
When should I book a waterproofing inspection?
After the waterproofing membrane is applied to wet areas (bathrooms, ensuites, laundry) but BEFORE tiles are laid. Once tiles are down, the membrane is hidden for the life of the home.
What's checked at the waterproofing stage?
Membrane coverage at all penetrations, correct waterproofing height (AS 3740 requires 150mm minimum at shower walls), substrate prep, fall to drain, treatment of corners and movement joints, and integrity around taps and drains.
Why is waterproofing so important to inspect?
Waterproofing failures in wet areas are the #1 insurance claim in residential construction. Once tiles are laid, the waterproofing is hidden and any defects become hugely expensive to remediate — often requiring full bathroom strip-outs.
How long does a waterproofing inspection take?
1 hour for a typical home with 2–3 wet areas.
How much does a waterproofing inspection cost?
$550 inc GST. Same fixed price as our other stage inspections, no travel surcharges within our Brisbane and SEQ service area.
Most clients who book a waterproofing inspection book us through to handover. See our construction stage inspections for the full build journey.
Every defect we find is referenced against the QBCC Standards and Tolerances and our QBCC defects guide.
Protect Your Home From Water Damage
Book before tiles are laid
Schedule your waterproofing inspection before it's too late. Once covered, problems become expensive to fix.
Your build, stage by stage
Every new home moves through the same inspection sequence. See where this stage fits and jump to the ones before and after it.
- 1Pre-Pour
- 2Slab
- 3Frame & Pre-Plaster
- 4Enclosed & Waterproofing
- 5Practical Completion
- 6Handover (2nd)
- 7Warranty (11-month)