Why is My Shower Leaking?

Showers can leak for a multitude of reasons. The table below lists some of the most common causes of leaking showers and offers advice on how best to rectify these issues.

Cause of Leak

Common Symptoms


Plumbing Leaks

Dampness / moisture through adjoining wall (into hallway / cupboard etc) – often above floor level. High moisture levels above floor level on shower wall with taps.

Contact plumber to pressure test shower pipes & check tap washers.Plumber to repair as necessary.

Failure of Waterproof Membrane

Leaking through to lower level – wet patch on ceiling of lower level. Leaking to underneath of house.

Contact waterproofing company for inspection, assessment and quotation – often needs to be ripped out, re waterproofed and retiled.

Shower Screen Seals

Water leaking out from under shower screen onto bathroom floor.

GripSeal Waterproofing Replacement; remove and replace silicon seals from around shower screen.

Grouting Compromised (cracked/decayed)

Water leaching up through bathroom floor (often away from the shower). Dampness / damage to or around bathroom door frame. Dampness / moisture through adjoining wall (into hallway / cupboard etc) – at floor level.

GripSeal Waterproofing “Shower Perimeter Seals” or “5 Point Shower Seal” or “Shower MakeOver” as appropriate.

A combination of the above causes

Combination of the above.

Combination of the above.

Prevent Costly Water Damage…
As part of our commitment to providing the highest levels of customer service, our representative will perform a FREE Moisture Assessment Test when inspecting a leaking shower. The moisture assessment is carried out free of charge and is performed in order to eliminate or imply as a cause, issues with plumbing contributing to shower leaks. Should the moisture assessment show unusually high levels of moisture or moisture in unusual areas, our representative would usually recommend a plumbing inspection.

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