Deanside Building
Inspections
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Waterproofing inspection in Deanside

The membrane under your tiles is what keeps water out of the frame. We inspect it after it has cured and before the tiler covers it.

  • Membrane cured in every wet area, before tile adhesive goes on
  • About 1 hour on site
  • Report within 24 hours
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Fully licensed & accredited

Stage6 of 7
When to bookMembrane cured in every wet area, before tile adhesive goes on
Time on siteAbout 1 hour on site
Inspected againstAS 3740 (waterproofing of domestic wet areas), AS 3958 (tiling), NCC Volume Two Part 10.2

What is included in a Deanside waterproofing inspection

  • Membrane coverage across the floor and up the walls
  • Wall upturn heights at the shower and against hobs
  • Hob, threshold and step-down details
  • Bond breakers at wall and floor junctions
  • Floor waste flange bedded and sealed to the membrane
  • Falls to the floor waste and shower screed
  • Penetrations for taps, wastes and shower rails sealed
  • Membrane cure, damage and coverage before tiling
  • Primer and substrate preparation where visible
  • Set-down depth against the finished floor level
  • Junctions to baths, screens and vanities
  • Laundry, powder room and ensuite treated to the same standard
Why it matters here

Waterproofing inspections on Deanside builds

Wet area faults are among the costliest to repair in any new house, because the fix means removing tiles. Penetrations, shower floor levels and damaged membrane are where we most often see problems.

What we find at this stage in Deanside

  • Membrane not yet applied in every wet area
  • Tap and outlet penetrations not sealed
  • Slab too high in the shower floor
  • Membrane left exposed to foot traffic
  • Damage to the membrane from other trades
Membrane in the shower recess open to foot traffic and dropped tools, found during a waterproofing inspection in Sunshine West
Membrane in the shower recess open to foot traffic and dropped tools, Sunshine West
Sample findings

Sample defects found during our waterproofing inspections in Deanside

Annotated findings from Waterproofing inspections.

Slab standing too high in the shower floor, leaving no room for the tile bed, found during a waterproofing inspection in Sunshine West
Slab standing too high in the shower floor, leaving no room for the tile bed, Sunshine West
Tap and shower outlet penetrations not sealed with a flange or sealant, found during a waterproofing inspection in Hoppers Crossing
Tap and shower outlet penetrations not sealed with a flange or sealant, Hoppers Crossing
Waterproofing not yet applied to every wet area, a mandatory step before tiling, found during a waterproofing inspection in Aintree
Waterproofing not yet applied to every wet area, a mandatory step before tiling, Aintree
Finished membrane left unprotected while trades walk through the bathroom, found during a waterproofing inspection in Aintree
Finished membrane left unprotected while trades walk through the bathroom, Aintree

The other stages of a Deanside build

  1. Bored piers inspection in Deanside1Bored piersHoles bored and cages lowered in, with no concrete ordered yet
  2. Slab pre-pour inspection in Deanside2Slab pre-pourSteel tied, pods placed and membrane down, the day before the pump arrives
  3. Frame inspection in Deanside3FrameWalls standing and trusses fixed, before wrap and bricks go on
  4. Lock-up (pre-plaster) inspection in Deanside4Lock-up (pre-plaster)Roof on, windows and external doors in, before the plasterer starts
  5. Fixing inspection in Deanside5FixingDoors hung, cabinets set and mouldings fixed, before the painter
  6. Pre-handover (PCI) inspection in Deanside7Pre-handover (PCI)When the builder names a completion date, a week or so before you sign

All construction stage inspections in Deanside →

Guides

Construction stage guides for Deanside

All guides →

Book a waterproofing inspection in Deanside

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FAQ

Waterproofing inspections in Deanside: common questions

What standard applies to waterproofing?

AS 3740 and the NCC Housing Provisions set where and how wet areas are waterproofed.

Can you test the membrane?

We inspect it visually for coverage, laps, penetrations and damage. We do not flood test.

Why does a high slab in the shower matter?

It leaves no room for the screed and tile bed, so the floor cannot be graded to the waste properly.

Is waterproofing part of the fixing stage?

It is a separate visit, timed before tiling. Fixing comes later, when doors and mouldings are in.

What if tiles are already down?

Then the membrane cannot be inspected. A moisture survey after handover is the only check left.

How long does it take?

Under an hour for most homes with two bathrooms and a laundry.

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