Merthyr Tydfil · Wales
Bath Resealing for Trelewis homes
We travel to Trelewis for bath, shower and sink resealing with new mould-resistant silicone. Nothing is taken out, and the work is guaranteed.
- Unsealed corners
- A messy previous reseal
- Black mould in the sealant

DIY kit or professional repair?
A DIY attempt isn’t a disaster. We remove the old filler and start again, so it won’t stop us repairing it. It does add a little time, so tell us about it when you send pictures.
DIY kits are sold for most surfaces, and they can make a small mark look better. Where they fall down is colour and preparation: they come in a handful of shades, and if the surface isn’t prepared the repair won’t last.
Bath resealing in Trelewis without replacing anything
We reseal baths with them filled with water, so the joint is at its widest, which stops the new seal tearing the first time the bath is used. Whether it’s a messy previous reseal and gaps by the taps, we can help.
All of our repairs are guaranteed for twelve months, and the guarantee is the same wherever you live. If something goes wrong with the work, we come back.
- Where
- Trelewis (CF46)
- Region
- Merthyr Tydfil
- Cover
- A year, on every repair
- Price
- Free, fixed quote from pictures
- Call
- 0345 017 0787
- Page updated
- 23 October 2026

What your bath or shower is made of matters
Baths
We fill the bath before sealing, to open the joint fully.
Shower trays
We put weight on a tray before sealing it, for the same reason.
The process
We work cleanly and quietly, so you can carry on at home. Protection goes down first, then the job itself takes around two hours. Before we leave, we explain the curing time and the aftercare.
- All the old sealant is cut out and removed.
- We clean the joint and treat any mould.
- We make sure the joint is completely dry.
- For a bath, we fill it with water first so the joint is at its widest.
- We run a new bead of mould-resistant silicone and smooth it neatly, including around the taps.
How to prepare
- Keep a parking space free if you can
- Have a window or extractor fan available
- Mention if the room is upstairs or in a flat
Ask for a price
Getting a price is easy: snap the damage close up and then the whole item, send them over with your postcode, and we’ll reply with a fixed price. There’s no charge for the quote and no obligation.
Related advice
Keeping it looking good
A little care keeps the finish looking good. Our advice:
- Reseal when black spots won’t clean off
- Give the seal a regular clean
- Keep bottles off the joints
- Run the extractor fan during and after showers
Use the extractor fan, dry the joints after bathing, and give them a regular clean with a mild cleaner to slow mould growth.
Damp below or loose tiles need checking quickly. It may be more than a reseal, and we will say if you need a builder or plumber.
Common problems we fix in Trelewis
Even good sealant eventually discolours, especially in a busy family bathroom. Steam, soap and movement all wear it down.
These are the problems we are asked about most:
- Water getting behind the bath or tray
- Silicone coming away from the tiles
- Gaps by the taps
- Silicone smeared on tiles
Before booking anyone
- How the room is protected while they work
- Whether cleaning and preparation are in the price
- Whether a trained technician does the job
- How to look after the finish
What we can’t put right
Honesty matters more than a booking, so here’s what a repair can’t fix:
- Rotten walls or floors behind the bath
- Tiles that move, until they’re refixed
- Very wide gaps that need a trim
Send us pictures and we’ll tell you honestly.
Materials we work on in Trelewis
- Baths
- Basins & vanity units
- Kitchen worktops & sinks
- Shower trays & enclosures
- Wet rooms
Places near Trelewis
What else we do in Trelewis
About Trelewis
Trelewis is about 4 miles east of Mountain Ash, in Merthyr Tydfil. Whether you are in the middle of Trelewis or on the outskirts, the service is the same: a fixed price, a tidy visit and a guarantee. Trelewis is one of 52 places in Merthyr Tydfil we cover.
Every address in CF46 is within our area, from the main roads to the quietest streets. We regularly work on streets such as High Street, Beechcroft and Nant Gwyn. Neighbouring places we cover include Nelson (1 mile south), Tai'r-heol (1 mile south), Llancaiach (2 miles south-east), Gelligaer (2 miles east) and Penybryn (2 miles east). Within a short drive, we also cover Merthyr Tydfil (7 miles north-west), Gurnos (8 miles north-west), Park (8 miles north-west), Thomastown (7 miles north-west), Glebeland (7 miles north-west) and Morgantown (7 miles north-west).
Near you in Trelewis
Around Trelewis, we work in homes near Ffaldaiach Inn and Trelewis Primary School, among other places. For rail, the closest station is Quakers Yard station, roughly 1.4 miles west of the centre. A little further out are Twyn Castell (1.8 miles east) and Ystrad Mynach Hospital (3.2 miles south-east). For a walk, there’s Goitre Coed and Pwll Waun Cynon.
FAQs for Trelewis
Is repairing better than replacing?
In most cases, yes. Replacement brings removal, refitting and making good, which a repair avoids. We will be honest if it’s not worth it.
Can tenants book a repair?
Yes. Check with your landlord; we can send the quote to them too.
Do you cover Trelewis?
We do. Technicians travel to Trelewis from across the region, with no extra charge for travel.
Why does the silicone keep cracking?
Movement is the usual cause, or it was sealed with the bath empty. We seal baths full of water.
It’s been repaired before. Can you still fix it?
Yes, regularly. Removing the old work can add time, and that’s in the quote.
How long will it take?
Normally a couple of hours, plus curing time.
How long does silicone take to cure?
Usually after around 24 hours. We’ll tell you the exact time.
Do you do work for letting agents?
We do, regularly. We can quote for several properties together and work between tenancies.
Prices and what affects them
There are no hourly rates or hidden extras. The price is based on:
- The colour and finish to match
- Doing more than one item at once
- Any earlier repairs that need removing first
- The material
Most people are surprised how affordable a repair is, particularly next to the cost of replacement. Photos let us give you the exact figure.
How to get a fixed quote
Almost every job we do is priced from pictures. This is what to send:
- Natural light rather than flash
- A wider photo showing the whole bath or shower
- A clear, close picture of the problem area
- Any earlier repairs or coatings
For most jobs, pictures are all we need to give you a price. Add a line about what happened and your postcode, and we’ll reply with a fixed quote and the earliest dates we have.
For landlords and businesses
Builders use us to fix snagging damage before handover, saving last-minute replacements. We can visit several plots in one trip to keep costs down.
For anyone letting property in or around Trelewis, we will quote for several properties at once. Just send photos for each address and we’ll price them together.
About our accreditations · Every repair comes with a one-year guarantee.

