Monmouthshire · Wales
Bath & shower resealing (mastic) in Cwm Siôn Mathew, Monmouthshire
Bath, shower and sink resealing with new mould-resistant silicone at your home in Cwm Siôn Mathew, with a one-year guarantee on every repair.
- Black spots in the silicone
- Damp near the bath
- An untidy old seal
About our bath resealing in Cwm Siôn Mathew
Baths, trays, basins and kitchen worktops all get resealed, with mould-resistant sanitary silicone. A typical reseal takes a couple of hours, then it needs to cure. Our technicians work on kitchen worktops & sinks, basins & vanity units and wet rooms, and common reasons people get in touch are missing sealant behind the taps and an untidy old seal.
You get a one-year guarantee, the same in Cwm Siôn Mathew as everywhere else we work.
- Area
- Cwm Siôn Mathew (NP7)
- County
- Monmouthshire
- Guarantee
- 12 months on all our work
- Price
- Free, fixed price from pictures
- Call
- 0345 017 0787
- Updated
- 23 October 2026
Keeping it looking good
Aftercare is simple, and it makes a real difference:
- Air the room after use
- Ventilate the bathroom well
- Replace the seal when mould sets in
- Don’t stand toiletries on the seal
Keep the room well ventilated, and wipe the joints after use so mould struggles to take hold.
If you notice damp, stains on the ceiling below or loose tiles, act quickly. It may be more than a reseal, and we will say if you need a builder or plumber.
What we’re called out for in Cwm Siôn Mathew
Black mould is the most common reason people reseal. It grows into the sealant itself, so cleaning only removes the surface.
Signs it’s time to call us include:
- Black mould in the sealant
- Unsealed corners
- A messy previous reseal
- Stained silicone
Questions to ask before booking
- How changes to the job are handled
- Whether there are any call-out or travel charges
- What prep work is covered
- What the guarantee covers, and for how long
What we can’t put right
A repair is not right for every job, including:
- Gaps too big for silicone alone
- Hidden water damage
- Tiles that move, until they’re refixed
Send us photos and we will tell you honestly before booking.
Materials we repair
- Baths
- Kitchen worktops & sinks
- Wet rooms
- Shower trays & enclosures
- Basins & vanity units
Places near Cwm Siôn Mathew
More services for Cwm Siôn Mathew
Repairs by material
Sinks and worktops
Basins, vanity units and kitchen worktops are resealed too, with the joint fully dried first.
Baths
Baths are resealed with water in them, so the joint is at its widest.
Is resealing worth it?
Sealing over old silicone is a false economy. It soon peels, and mould stays trapped behind it. We remove the old sealant completely. What it costs depends on the type and amount of damage, what it’s made of and how many jobs we combine into one visit. We give a fixed quote from your pictures, so you know the cost before you book.
Why choose Surface Doctor in Cwm Siôn Mathew
- We come to you, anywhere in the UK
- We leave the room as we found it
- Every repair guaranteed for a year
- One visit for most repairs
Read our full price list.
For landlords and businesses
Builders, developers and site managers book us for snagging repairs, fixing chips and scratches before handover. We are CHAS, Constructionline and SafeContractor accredited.
Rented homes see more wear and tear, and replacing things at every changeover adds up. Repairing between tenants keeps the property presentable for less.
What happens on the day
We work cleanly and quietly, so you can stay at home while we’re there. We protect the area first, then the work takes about two hours for a bath. At the end we talk you through how soon it can be used and how to look after it.
- All the old sealant is cut out and removed.
- We clean the joint and treat any mould.
- We dry the joint thoroughly.
- For a bath, we fill it with water first so the joint is at its widest.
- We apply new mould-resistant silicone and tool it to a neat finish, including around the taps.
Preparing for the visit
- Let us know which floor the room is on
- Clear the area around the damage
- Mention any earlier repairs or resurfacing
Ask for 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’ll reply with a fixed quote.
Read more
Covering Cwm Siôn Mathew
Cwm Siôn Mathew is about 4 miles north-east of Ebbw Vale, in Monmouthshire. Book a date that suits you, and you will know when to expect us, so there’s no waiting around. Cwm Siôn Mathew is one of 115 places in Monmouthshire we cover. You can also see our page for Birmingham, about 69 miles away.
We cover every part of NP7 and the streets around it. We also travel to Maesygwartha (1 mile north-east), Clydach (1 mile south), Llanelly (1 mile north), Pen-y-bont (1 mile north-east) and Waunllapria (1 mile south). Within a short drive, we also cover Abergavenny (5 miles east), Pen-y-pound (4 miles east), Cantref (4 miles east), Grofield (4 miles east), Usk (12 miles south-east) and Llanfoist (4 miles east).
Landmarks near Cwm Siôn Mathew
In Cwm Siôn Mathew, that means homes near Cambrian Inn, Brynmawr Foundation School and Parish Church of St Elli. The nearest railway station is Ebbw Vale Town station, roughly 4.6 miles south-west. Nearby you’ll also find Battle Tump (1.5 miles north-east) and Llanwenarth Ultra (2 miles east). The countryside around Cwm Siôn Mathew includes Mynydd Llangatwg and Pwll Gwy-rhoc.
Questions from Cwm Siôn Mathew
When can you do it?
It depends on the time of year and where you are. We will offer you dates when we send your quote.
Why does my sealant keep going mouldy?
Mould needs moisture. Run the fan, dry the joints and the new seal stays cleaner for longer.
It’s been repaired before. Can you still fix it?
Most of the time. Tell us what was done before and we’ll plan for it.
Do you do work for letting agents?
Yes, frequently. We quote for multiple addresses and fit around tenancy changeovers.
My seal keeps tearing. Why?
The bath or tray is probably flexing. Persistent splitting can mean the support needs attention.
Do you hold any accreditations?
We’re accredited with CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile.
Is there any odour?
There can be some smell while we work, so we ventilate the room. It fades as everything cures.
Is repairing better than replacing?
Typically, if the item is otherwise sound. Repairing avoids the cost and disruption of replacing. If replacing would be better, we’ll say so.
DIY repairs versus a professional job
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 is not prepared the repair won’t last.
If you’re set on a kit, follow its instructions closely, make sure the area is clean and completely dry, and give it the full curing time. If it doesn’t work out, we can still repair it properly.
About our accreditations · Every repair comes with a one-year guarantee.
