How much does wet room leak repair cost?

£800 to £2,500 in Teesside: localised membrane failures at the lower end, wet-zone rebuilds at the top. Water damage to joists or ceilings is priced separately.

Can a leaking wet room be repaired without a full strip-out?

Sometimes: if tracing shows a localised failure, a section repair holds. If there is no membrane at all, only a proper rebuild fixes it, and an honest quote says which.

How do you find where the leak is?

Moisture readings around the room, a flood test of the floor, and where needed lifting a small section to inspect what was done underneath.

My wet room is only two years old and leaking. Why?

Almost always missing or pierced tanking: tiles and grout are not waterproof, so without a membrane the room was a leak on a timer.

Wet room repairs in Teesside

Wet room repairs in Teesside cost £800 to £2,500 in 2026, depending on how far the water has travelled. Most failures are tanking failures: the leak is traced first, the repair scope quoted honestly, and only the work that is actually needed gets priced.

Get Quote From £800

Grey waterproof tanking membrane being roller-applied to a wet room floor and wall corner

Ninety percent of wet room failures are tanking failures

The pattern is always the same: a wet room fitted without a proper membrane system holds for a year or two, then the ceiling below stains, the silicone blackens, and water starts finding the joists. Tiles and grout were never waterproof; if the membrane underneath was skipped, skimped or pierced, the room was a leak on a timer. The repair starts with tracing, not tiling: moisture readings, a flood test, and where needed lifting a small section to see what was actually done.

What repairs actually cost

£800 to £2,500 depending on what the tracing finds. A localised failure, a pierced membrane at a penetration or an unsealed corner, can often be repaired section by section: lift the affected area, re-tank properly, re-tile, £800 to £1,500. Systemic failure, no membrane at all, or a floor fall that never fell, means strip-back and rebuild of the wet zone: £1,500 to £2,500. Water damage to joists or the ceiling below is priced separately and honestly, because it is carpentry and plastering, not tiling.

What a proper repair quote includes

Leak tracing first: moisture readings and a flood test before any scope is quoted.
Honest scope: section repair where that genuinely fixes it, rebuild only where it does not.
Named tanking system: the membrane named by brand, sealed corners and penetrations, not a promise of \"waterproofed\".
Water-tested fall: the floor fall proved with water before tiling goes back.
Damage priced separately: joist repair and ceiling making-good shown as their own lines.

The question worth asking

If the original room failed in two years, the question is not who tiles it back, it is what will be different this time. The answer is always the same boring sequence: membrane, sealed corners, tested fall. Any repair quote that skips straight to re-tiling is pricing the same failure twice. For prevention on a new project, the tanking guide explains what should have happened.