Caerphilly · Wales
Bath & shower resealing (mastic) in Thornhill, Caerphilly
Bath resealing in Thornhill without the cost of replacing. Get a fixed price from your photos, then we come to you.
- Sealant that is split or lifting
- Missing sealant behind the taps
- Black mould in the sealant
Bath resealing in Thornhill, done in place
Resealing is quick, but it transforms the look. Fresh joints make the entire room look cleaner, and they protect the walls and floor. We’re frequently asked to fix gaps by the taps and an untidy old seal, in baths, wet rooms and kitchen worktops & sinks.
The work is covered for a year after we finish. Just call us if there’s a problem and we’ll sort it.
- Location
- Thornhill (CF83)
- Region
- Caerphilly
- Warranty
- A year, on every repair
- Quote
- Free and fixed, from your photos
- Telephone
- 0345 017 0787
- Page updated
- 23 October 2026
Keeping it looking good
After the repair has cured, a few habits help it last:
- Wipe the joints dry after use
- Give the seal a regular clean
- Ventilate the bathroom well
- Air the room after use
Use the extractor fan, wipe the joints dry after use, and clean them regularly with a mild cleaner to slow mould growth.
Reseal before water gets in. Split or lifting sealant is a sign it’s time.
Landlords, agents and businesses in Thornhill
We regularly price jobs from inventory or check-out pictures. You can have a price before you arrange access, and we can arrange access with the tenant directly if that helps.
Hotels, guest houses and holiday lets cannot afford rooms out of action for long, so most of our work is done in a single visit. We can work around your bookings.
Also near Thornhill
What else we do in Thornhill
What bath resealing costs
There’s no charge for travel to Thornhill. The price comes down to:
- Doing more than one item at once
- The type of damage
- Where the damage is and how we get to it
- Any earlier repairs that need removing first
No two jobs are quite the same, so we price each one individually. The size and type of damage, the material and access all make a difference, and doing several things on one visit costs less than separate visits.
Send photos for a quote
Before you send pictures, these tips help us give you a firm price:
- The postcode, so we can plan the visit
- A close-up of the damage, in focus
- Any details about the material
- Something in shot to show the size
No survey visit is needed: we price from pictures. Send them through the quote form, or call 0345 017 0787 if you’d rather talk it through.
DIY kit or professional repair?
A DIY attempt is not a disaster. We remove the old filler and start again, so it doesn’t stop a professional repair. It does add a little time, so tell us about it when you send pictures.
A kit can be fine for a tiny mark out of sight. 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
Expect a friendly, tidy visit. We agree the arrival time in advance, cover and mask the work area, then carry out the work, which normally takes a couple of hours. If we find something your pictures didn’t show, we will explain it before carrying on.
- All the old sealant is cut out and removed.
- We clean the joint and treat any mould.
- We dry the joint thoroughly.
- We fill a bath with water before sealing so the gap is at its widest.
- We run a new bead of mould-resistant silicone and smooth it neatly, taps included.
Before we arrive
- Mention if the room is upstairs or in a flat
- Clear toiletries, mats and anything else from around the area
- Have a window or extractor fan available
Getting a price
There is no need for us to visit first. Nearly every job can be priced from photos: we need a close-up, a wider picture and your postcode, and we will reply with a fixed price.
Advice
Different materials, different repairs
Baths
Baths are resealed with water in them, so the joint is at its widest.
Shower trays
Trays are sealed with weight on them, for the same reason.
About Thornhill
Thornhill is about 2 miles south-east of Caerphilly, in Caerphilly. We agree a date that works for you, and we will give you an arrival time in advance, so there’s no waiting around. Thornhill is one of 94 towns and villages in Caerphilly where we work.
Every address in CF83 is covered. We also cover the places around Thornhill: Wenallt (1 mile south), Van (1 mile north), Castle Park (1 mile north), Beddau (2 miles north-west) and Watford Park (2 miles north-west). Larger places within reach include Blackwood (8 miles north), Risca (6 miles north-east), Ystrad Mynach (7 miles north), Cefn Fforest (8 miles north), Pontllanfraith (7 miles north) and Trecceln (9 miles north).
Around Thornhill
Our customers here include homes close to St Martin's School, Travellers Rest Inn and Church of St Martin, among other places. Thornhill’s nearest station is Caerphilly station, roughly 1.2 miles north of the centre. Well-known places in the area include Morgraig Castle (less than half a mile south-east) and St Martins (0.7 miles north). Open spaces near Thornhill include Roath Park Lake and Glamorgan Canal / Long Wood.
Common problems we fix in Thornhill
Poor ventilation speeds things up: damp hangs around, and mould takes hold.
Look out for any of the following:
- Stained silicone
- Mould you cannot clean out
- Water getting behind the bath or tray
- Gaps by the taps
What your quote should include
- If travel is included in the price
- Whether they match the colour on site
- How soon you can use it again
- A fixed price, and whether VAT is included
FAQs for Thornhill
How long does silicone take to cure?
Normally about a day later. We confirm before we leave.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Just ensure the landlord agrees.
What happens once I’ve sent photos?
We check the damage, the material and your postcode, then reply with a quote and the next dates we have.
Do you work in Thornhill?
We do. We send a technician to Thornhill for every job, with no extra charge for travel.
Is my repair covered?
Every repair comes with our one-year guarantee. Ask us what it covers when you get your quote.
Does someone need to be in?
We need someone to let us in. You don’t need to watch us work.
What information do you need?
Send photos through the quote form or call 0345 017 0787.
How do I stop mould in sealant?
Mostly moisture and poor ventilation. We use mould-resistant silicone, and ventilation helps it last.
When we would advise against a repair
Some problems need a builder, plumber or fitter rather than us:
- Hollow or loose tiles
- Very wide gaps that need a trim
- Water damage behind the bath that needs a builder
Send us photos and we’ll tell you honestly.
Materials we work on in Thornhill
- Wet rooms
- Kitchen worktops & sinks
- Shower trays & enclosures
- Baths
- Basins & vanity units
About our accreditations · Every repair comes with a one-year guarantee.
