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Cracked Bathroom Sealant

Silicone sealant around the bath, shower, or basin that has cracked, peeled, or turned black with mould.

What Is Causing This?

  • 1Natural deterioration of silicone over time
  • 2Mould growth in the sealant due to moisture
  • 3Movement between the bath and wall breaking the seal

How Urgent Is This?

Fix Soon

This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.

What Needs to Be Done

A handyman will carefully remove all old sealant, clean and dry the surfaces, and apply a fresh bead of anti-mould silicone sealant.

How Much Will It Cost?

£40 – £138

National average estimate

Labour: £35 – £98 | Materials: £5 – £40

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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.

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How to Prevent This

Replace bathroom sealant every 3 to 5 years as a matter of routine. Wipe down after showering. Use sealant labelled as mould-resistant.

Related Problems

Water Seeping Behind Tiles

Signs of water getting behind wall tiles, such as damp patches on the other side of the wall or loose tiles.

Shower Tray Leaking

Water escaping from beneath the shower tray, appearing as damp on the ceiling below or on the floor outside the shower.

Grout Turning Black

Grout between tiles turning dark grey, black, or developing visible mould spots, especially in wet areas.

Other Handyman Problems

Door Handle Loose

A door handle that wobbles, droops, or does not spring back after being pressed down.

Draughty Windows

Cold air noticeably blowing in around closed windows, making rooms feel cold and increasing energy bills.

Squeaky Door Hinge

A door that squeaks or creaks every time it is opened or closed.

Shelf Falling Off Wall

A wall-mounted shelf that has pulled away from the wall or is sagging under its load.

Frequently Asked Questions

What causes cracked bathroom sealant?
Natural deterioration of silicone over time. Mould growth in the sealant due to moisture. Movement between the bath and wall breaking the seal.
Is cracked bathroom sealant serious?
This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.
How much does it cost to fix cracked bathroom sealant?
Typical costs range from £40 to £138 depending on severity and location. Get a free quote from a local handyman on Tradesfolk.
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