Caerphilly · Wales
Bath & shower resealing (mastic) in Treowen, Caerphilly
Bath, shower and sink resealing with new mould-resistant silicone for homeowners, landlords and businesses in Treowen. Send pictures for a free, fixed quote.
- Black mould in the sealant
- Water getting behind the bath or tray
- Gaps in the seal
Bath resealing in Treowen without replacing anything
We reseal baths, shower trays, basins and worktops. A typical reseal takes a couple of hours. We are often asked to fix mould you can’t clean out and a messy previous reseal, across wet rooms, baths and kitchen worktops & sinks.
Your repair is guaranteed for a year, as with every job we do.
- Location
- Treowen (NP11)
- County
- Caerphilly
- Guarantee
- One year on every repair
- Price
- Free and fixed, from your pictures
- Phone
- 0345 017 0787
- Page updated
- 23 October 2026
Common questions in Treowen
Why does my sealant keep splitting?
The bath or tray is probably flexing. If it keeps happening, the support may need fixing.
When can you do it?
That depends on our diary for your area. We will offer you dates when we send your quote.
How do I stop mould in sealant?
Damp is the cause. Run the fan, dry the joints and the new seal stays cleaner for longer.
Can you do more than one item on the same visit?
Of course, and it generally saves money. Just add the extra items to your photos and you will get one combined price.
How long will it take?
A bath or shower normally takes a couple of hours. It then needs time to cure.
What does bath resealing cost?
Every job gets a fixed price from your photos. Send a close-up of the damage and a wider photo and your postcode.
What happens if you find more damage?
It’s rare, but if it happens we talk to you first. You decide whether to go ahead.
I’m a tenant. Can you help?
Of course. Check with your landlord; we can send the quote to them too.
DIY repairs versus a professional job
A DIY attempt isn’t a disaster. We take the old repair out and do it properly, so it doesn’t stop a professional repair. Just mention it when you send photos, as it can add time.
For a hairline mark somewhere you’ll never see, a kit may be enough. For anything you look at every day, anything that has rusted, cracked or holed, or anything on a coloured surface, a professional repair is worth it.
What happens on the day
On the day, the technician arrives at the agreed time, protects the room with dust sheets and masking and gets started. Expect it to take about two hours for a bath. We tidy up before we leave and tell you when it’s ready to use.
- All the old sealant is cut out and removed.
- Next we clean the joint and deal with mould.
- We dry the joint thoroughly.
- Baths are filled with water first, so the joint is at its widest.
- We run a new bead of mould-resistant silicone and smooth it neatly, taps included.
Getting ready for the visit
- Avoid using the area for a few hours before we arrive
- Tell us about parking, stairs or access
- Clear the area around the damage
Ask for a price
We price from photos so you do not have to wait in for a survey. Use the quote form, or ring 0345 017 0787 to talk it through, and you’ll get a fixed figure back.
Related advice
What your bath or shower is made of matters
Baths
We fill the bath before sealing, to open the joint fully.
Shower trays
Trays are sealed with weight on them, for the same reason.
How to look after the repair
Aftercare is simple, and it makes a real difference:
- Reseal when black spots won’t clean off
- Keep bottles off the joints
- Give the seal a regular clean
- Dry the seal after bathing
Keep the room well ventilated, and dry the joints after bathing so mould struggles to take hold.
Black mould in sealant is not just unsightly, it’s a sign moisture is sitting in the joint. Resealing early keeps water out of the walls and floor.
Resealing in Treowen: why it matters
Sealing over old silicone is a false economy. It soon peels, and mould stays trapped behind it. We remove the old sealant completely. Compared with replacing, a repair is generally a fraction of the price, because nothing has to be taken out, refitted or made good. The quote lists exactly what you are paying for.
Why us?
- One price list for the whole UK
- Work done at your home or business
- Dust sheets down, tidy finish
- Every repair guaranteed for a year
See our prices page.
More services for Treowen
Where we work around Treowen
Treowen is about 1 mile north of Trecceln, in Caerphilly. Whether you’re in the middle of Treowen or on the outskirts, the service is the same: fixed prices, tidy work and a one-year guarantee. Our technicians cover 94 places across Caerphilly, from the larger towns to small villages. You can also see our page for Birmingham, about 76 miles away.
We work across the NP11 postcode area and the streets around it. You will find streets such as North Road, Elidyr Road and Kendon Road, and we cover them all. With the A472 close by, Treowen is easy for our repair technicians to reach. Nearby, we also work in Rhiw (1 mile north-west), Crumlin (1 mile east), Swffryd (1 mile north-east), Trecceln (1 mile south) and Newbridge (1 mile south-east). Larger places within reach include Caerphilly (8 miles south-west), Blackwood (3 miles west), Risca (5 miles south-east), Ystrad Mynach (4 miles south-west), Cefn Fforest (3 miles west) and Pontllanfraith (3 miles south-west).
Local landmarks in Treowen
Around Treowen, we work in homes near Bridgend Inn, Church Of Our Lady Of Peace And Attached Presbytery and Newbridge School and the streets around them. Treowen’s nearest station is Newbridge station, roughly 0.9 miles south of the centre. Other landmarks nearby include Oakdale Hospital (1.6 miles west) and Castell Taliorum (2.3 miles north). Green spaces nearby include Craig Swffryd and Cwm Lickey Lake.
Common problems we fix in Treowen
Joints split if the bath or tray moves, frequently because it was sealed while the bath was empty.
Keep an eye out for any of the following:
- An untidy old seal
- Sealant that is split or lifting
- Damp near the bath
- Missing sealant behind the taps
Questions to ask before you book
- How to look after the finish
- Whether there are any call-out or travel charges
- What preparation is included
- The length of the guarantee and what it covers
When a repair isn’t the answer
Some problems need a builder, plumber or fitter rather than us:
- Tiles that move, until they’re refixed
- Water damage behind the bath that needs a builder
- Very wide gaps that need a trim
Not sure? Send photos and we’ll give you a straight answer.
What we work on
- Basins & vanity units
- Kitchen worktops & sinks
- Baths
- Wet rooms
- Shower trays & enclosures
For landlords and businesses
Builders use us to fix snagging damage before handover, so there is no need to replace a damaged item at the last minute. Several plots can be done in one visit.
Rental properties take more wear, and replacing things at every changeover adds up. Repairing between tenants keeps the property presentable for less.
About our accreditations · Every repair comes with a one-year guarantee.
