When a technician visits to repair a chip in your bath or worktop, it’s often the perfect time to address failing mastic sealant at the same time. Mastic removal and replacement is a quick add-on to most surface repair visits — and it makes a significant difference to the overall appearance of a kitchen or bathroom.
What Is Mastic Sealant?
Mastic (or silicone sealant) is the flexible beading that seals the joins between surfaces — where the bath meets the wall tiles, where the worktop meets the splashback, where the sink meets the worktop. It allows for slight movement between surfaces and prevents water ingress.
When Does Mastic Need Replacing?
Mastic sealant typically lasts 5–10 years before it shows signs of deterioration. Common signs that it needs replacing include:
- Black or pink mould growth on or within the sealant
- Shrinkage and pulling away from the surface
- Yellowing or discolouration on white silicone
- Cracking or crumbling
- Loss of adhesion — sealant lifting at the edges
Why Combine It With a Chip Repair Visit?
Combining mastic replacement with a chip repair means one visit, one call-out fee and minimal disruption. The technician is already at your property with the necessary tools. Mastic removal and replacement typically takes 30–60 minutes and the new sealant needs to cure for a few hours before contact with water.
Mastic Colours and Bathroom-Grade Sealant
We use bathroom-grade anti-mould silicone sealant in a full range of colours — white, off-white, magnolia, cream, grey, black and others — to match your existing tiles and sanitaryware. Bathroom-grade sealant contains anti-mould agents that resist the damp bathroom environment far better than general-purpose sealant.
Book a Combined Repair and Reseal Visit
Get a quote for chip repair and mastic replacement in one visit →
