What are the signs to look for if I think I have a leaking bathroom?

Look for water stains at the base of the entry door to the bathroom. The water stains will appear on either the carpet, as bubbling paint to wall surfaces or wood rot to timber work. Also look at the base of the walls, which back onto the shower recess. In some cases mould growing on the wall surface might be noticeable.

Bathroom renovation


What are the signs to look for if I think I have a leaking laundry?

As with leaking bathrooms, you will notice water leaching from the laundry entry doors. If you see decay to the timbers adjacent to the base of the door, then it’s likely you have a leak.

Bathroom renovation


I can see staining on the edge of my balcony, is it leaking?

If there is staining to the edge of your balcony, you may have a defective waterproofing membrane and/or drainage issues.

As with other wet areas within the building, leaking balconies often manifest themselves in various locations. This includes water damage to ceilings underneath the balcony and blistering paint to wall surfaces adjacent to the doorways leading onto the balcony.

Bathroom renovation

Planter Boxes

How do I know if my planter box is leaking?

As with other water defects you will often find stains to the outside of planter box walls, usually where the wall meets the floor of the planter box. In some cases the paint will blister from the wall surface.

Why do planter boxes leak?

Tree roots can cause extensive damage to the waterproofing membranes used within planter boxes. The tree root will follow the moisture trails through lap joints or small penetrations in the membrane and tear it apart. Once this has occurred the planter box can leak. General movement of the building structure can also tear waterproofing membranes at the floor and wall junctions. Once this tearing occurs water freely travels and causes a defect.

Bathroom renovation


I have stains on my ceiling and sometimes have water trickling down the walls?

If you have a metal roof, they can leak at the box gutter/drainage location. This can be repaired by installing a new waterproofing membrane within the existing box gutter.

Concrete or timber framed roofs leak because of a failure in the waterproofing membrane system, which was applied. This can occur for a number of reasons.

Any roof penetrations are highly susceptible for water ingress issues.

Bathroom renovation

Basements / Garages

I have mould or efflorescence stains on my wall, i also have water on the floor after heavy periods of rain?

Usually this is a sign that the waterproof membrane applied to the below ground retaining wall is either failing or has failed to provide the protection needed.

Is it possible to waterproof on the inside of the walls?

Yes of course, the proffered method of practice is to excavate and waterproof from the outside however the most cost effective solution is to apply a negative waterproof seal from the inside.

Bathroom renovation


I know my bathroom / laundry / balcony / roof or basement is leaking. Can I fix it by painting a liquid over the top of the tiles?

This will not fix the problem because the defect is at the waterproofing level, below the surface.

In Water Ingress’s experience, most waterproofing failures occur from poor building practices, which require the removal of the finishes (tiles, pavers, bricks, concrete etc.) so the underlying problem can be fixed.