Bathroom Waterproofing Guide
Bathrooms are used daily and exposed to water constantly, which makes proper waterproofing especially important — both for new construction and when addressing an existing leak.
Why Bathrooms Are Prone to Leakage
The combination of constant water exposure, floor drains, and multiple pipe penetrations makes bathroom floors and the wall-floor junction common weak points. Grout and sealant around tiles also wear down over time, allowing water to seep beneath the surface.
Signs of Bathroom Leakage
- Water stains or discolouration on the ceiling of the room below
- Damp patches near the bathroom's exterior wall skirting
- Tiles feeling loose or lifting slightly
- A persistent musty smell even after the bathroom is dry
What Waterproofing Involves
For an existing bathroom, this usually starts with removing the affected flooring so a waterproofing membrane can be applied directly to the base surface and up the wall skirting. Pipe and drain penetrations are sealed as part of this process before new flooring is laid. For new construction, waterproofing is applied before any tiling begins.
New Construction vs Renovation
Waterproofing a bathroom during construction is more straightforward, since the surface is fully accessible. Renovation work, on the other hand, may involve removing existing tiles or flooring first — which is why catching a leak early, before it spreads to the ceiling below, keeps the repair more contained.
Our bathroom waterproofing service covers both scenarios, along with related work for toilet areas.
Need Professional Waterproofing?
Get a free inspection for your property.
Related: Bathroom · Toilet · Leakage Repair · Contact Us