Blaenau Gwent · Wales
Bath Resealing for Trefil homes
Our technicians come to Trefil for bath, shower and sink resealing with new mould-resistant silicone. Everything is done in place, with a one-year guarantee.
- Old sealant that looks dirty
- Missing sealant behind the taps
- Silicone coming away from the tiles

Resealing in Trefil: why it matters
Compared with repairing water damage, resealing is cheap. It’s a quick job that protects your walls and floors. We don’t add extras on the day. The price we quote from your photos is the price you pay, and if the damage turns out to be different, we discuss it before starting.
Why choose Surface Doctor in Trefil
- A year’s guarantee on all work
- CHAS and Constructionline accredited
- No extra charge for your area
- We will tell you if it’s not worth repairing
Read our prices page.
Bath resealing in Trefil without replacing anything
We reseal baths, shower trays, basins and worktops. Most jobs take a couple of hours. Whether it’s silicone coming away from the tiles and gaps by the taps, we can generally put it right.
All our work is covered by a one-year guarantee, wherever you are in Blaenau Gwent.

- Area
- Trefil (NP22)
- Area hub
- Blaenau Gwent
- Guarantee
- One year on every repair
- Price
- Free, fixed price from pictures
- Call
- 0345 017 0787
- Page updated
- 23 October 2026
Towns and villages near Trefil
Also in Trefil
The process
From the moment we arrive, we keep the work contained to the one room. Surfaces nearby are masked off, the work takes a couple of hours, and we finish by cleaning up and talking you through the result.
- We cut out all of the old sealant.
- Residue is removed and the joint cleaned.
- We treat mould and dry the joint thoroughly.
- The bath is filled with water, or weight put on the tray.
- We apply fresh mould-resistant silicone and tool a neat bead.
How to prepare
- Keep a parking space free if you can
- Let us know if it has been repaired before
- Have a window or extractor fan available
How to get a price
We price from photos so you do not have to wait in for a survey. Send them through the quote form, or call 0345 017 0787 if you’d rather talk it through, and we will come back with a fixed figure.
Related advice
Where we work around Trefil
Trefil is about 2 miles north-west of Tredegar, in Blaenau Gwent. Whether you’re in the middle of Trefil or on the outskirts, the service is the same: a fixed price, a tidy visit and a guarantee. Trefil is one of 56 towns and villages in Blaenau Gwent where we work. Our jobs stretch from Trefil to Birmingham (about 75 miles away).
Postcode districts we cover here: NP22. Nearby, we also work in Rassau (2 miles east), Garnlydan (3 miles east), Llangynidr (5 miles north-east), Cwm Crawnon (5 miles north) and Coed-yr-ynys (5 miles north). Within a short drive, we also cover Ebbw Vale (3 miles south-east), Abertillery (8 miles south-east), Badminton (3 miles east), Beaufort (3 miles east), Willowtown (3 miles south-east) and Carmeltown (3 miles east).
Near you in Trefil
Locally, our jobs take us to homes close to Tafarn Ty Uchaf pub, among other places. For rail, the closest station is Rhymney station, roughly 3.2 miles south of the centre. Other landmarks nearby include Tredegar Museum (2.7 miles south-east) and Ysbyty’r Tri Chwm Hospital (2.7 miles east). Not far away are Trefil Las and Llyn y Garn-fawr.
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
- Very wide gaps that need a trim
- Movement in the bath or tray
Send us photos and we’ll tell you honestly before you book.
Surfaces we repair
- Shower trays & enclosures
- Basins & vanity units
- Baths
- Kitchen worktops & sinks
- Wet rooms
Prices and what affects them
You will not pay by the hour. The price is based on:
- How hard the colour is to match
- Any earlier repairs that need removing first
- How many areas need work
- What the surface is made of
Set against the cost of replacement, a repair is normally a fraction of the price, because nothing has to be taken out, refitted or made good. Your fixed quote shows exactly what’s included.
Send pictures for a quote
When you take your photos, a few simple things make all the difference:
- A picture taken from further back
- Your postcode, so we can check dates
- The material, if you know it
- Natural light rather than flash
Upload a photo of the damage and a wider shot of the entire item, and tell us you are in Trefil, and we will come back with a fixed quote.
When to call us in Trefil
In time, even good sealant discolours, especially in a busy family bathroom. Steam, soap and movement all wear it down.
Typical reasons for a call-out include:
- Black spots in the silicone
- Stained silicone
- Damp near the bath
- Silicone smeared on tiles
Questions to ask before you book
- What aftercare is recommended
- Whether the price is fixed and includes VAT
- How changes to the job are handled
- The length of the guarantee and what it covers
Materials and what they mean for the repair
Shower trays
Trays are sealed with weight on them, for the same reason.
Sinks and worktops
Basins, vanity units and kitchen worktops are resealed too, with the joint fully dried first.
Aftercare tips
Good habits make a big difference to how long a repair lasts. Here’s what we suggest:
- Clean the joints with a mild cleaner
- Ventilate the bathroom well
- Air the room after use
- Keep the joints dry
Run the extractor fan, dry the joints after bathing, and clean them regularly with a mild cleaner to slow mould growth.
Damp below or loose tiles need checking quickly. It may be more than a reseal, so we will tell you if it needs a builder or plumber.
For landlords and businesses
Letting agents frequently send us pictures straight from the inventory. That means we can quote before you even visit the property, and we can arrange access with the tenant directly if that helps.
We’re used to working with agents and managing companies. Just send pictures, the address and how to get access and we’ll handle the rest.
Common questions in Trefil
Why does my sealant keep going mouldy?
Mostly moisture and poor ventilation. Mould-resistant silicone and good ventilation help.
Can you quote from pictures?
In nearly every case. If pictures do not show enough, we will ask for another angle.
Are you a vetted contractor?
We’re accredited with CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile.
Is it worth repairing rather than replacing?
Generally, yes. A repair skips the removal, fitting and redecorating. If it isn’t worth repairing, we’ll tell you.
Can you repair something that’s been repaired before?
Generally, yes. Let us know what was used before.
Do I need to be at home?
Yes. We need access to the room while we work, at a time we agree with you.
Do you work for landlords and businesses?
Yes. We work for landlords, agents, builders and businesses as well as homeowners across Blaenau Gwent.
Is the work guaranteed?
Yes, for a year. If anything goes wrong with the repair within the year, we return to fix it.
About our accreditations · Every repair comes with a one-year guarantee.

