Bathroom silicone sealant doesn’t last forever. When it turns black with mould, peels away or starts leaking, it needs to go. Here’s what you can expect to pay for a professional replacement.
Bathroom Sealant Replacement Cost UK (2025)
- Bath silicone replacement (1–2 runs) — a competitive pricea competitive price
- Shower enclosure sealant (full enclosure) — a competitive pricea competitive price
- Basin sealant replacement — a competitive pricea competitive price
- Shower tray sealant — a competitive pricea competitive price
- Combined bath and basin (same visit) — a competitive pricea competitive price
- Full bathroom reseal (bath, shower, basin) — a competitive pricea competitive price
These are all-inclusive prices: old sealant removal, surface preparation, new sealant application and finishing.
What’s Included in a Professional Reseal?
A professional sealant replacement isn’t just squeezing new silicone over old. It involves:
- Removal of all old sealant using specialist tools (no scoring of tiles or surfaces)
- Cleaning and degreasing the joint
- Application of fungicidal primer where needed
- Neat application of new, mould-resistant silicone
- Professional tooling for a flat, clean finish
The difference between a professional result and a DIY result is immediately visible — clean, consistent lines vs a lumpy, uneven bead.
Why Not Just DIY?
DIY silicone is cheap but unforgiving. The most common DIY mistakes are: not removing old sealant fully, applying over mould (which grows back through the new sealant within weeks), and poor finishing that looks worse than the original problem.
For a bathroom fitting that will look good for years, professional application is worth the cost.
Get a Sealant Quote
Shazam Repairs provides professional bathroom, kitchen and commercial sealant services across London and the UK. Get a free quote for your bathroom reseal.
