Carmarthenshire · Wales
Bath & shower resealing (mastic) in Box, Carmarthenshire
Our repair technicians come to Box for bath, shower and sink resealing with new mould-resistant silicone. Everything is done in place, with a one-year guarantee.
- Stained silicone
- Gaps by the taps
- Black spots in the silicone

For landlords and businesses
Rental properties take more wear, and replacing items every time a tenant leaves is expensive. A repair between tenancies is a cheaper way to keep the property in good order.
Builders, developers and site managers book us for snagging repairs, putting right damage done during fitting. We’re CHAS, Constructionline and SafeContractor accredited.
Bath resealing in Box, done in place
All of the old sealant is cut out, deal with any mould, and apply fresh mould-resistant silicone. We reseal baths, showers, sinks and worktops, including the awkward bits behind the taps. Our technicians work on shower trays & enclosures, kitchen worktops & sinks and basins & vanity units, and people most frequently call us about discoloured, yellow sealant and mould you can’t clean out.
We stand behind the work with a one-year guarantee, so you are not left on your own once we have gone.
- Location
- Box (SA15, SA14)
- Area hub
- Carmarthenshire
- Cover
- One year on every repair
- Price
- Free and fixed, from your pictures
- Call
- 0345 017 0787
- Last updated
- 23 October 2026

When we’d advise against a repair
Before you book, it’s worth knowing the limits:
- Hidden water damage
- A flexing bath
- Loose tiles, which need refixing first
Not sure? Send photos and we’ll give you a straight answer.
Materials we work on in Box
- Shower trays & enclosures
- Wet rooms
- Kitchen worktops & sinks
- Baths
- Basins & vanity units
When to call us in Box
Sealant doesn’t last forever. Each shower leaves moisture and soap behind, which mould loves, and the joint moves slightly every time the bath is filled.
It’s worth getting a quote if you see:
- Black mould in the sealant
- Gaps by the taps
- Silicone smeared on tiles
- Old sealant that looks dirty
Questions to ask before you book
- A fixed quote, and whether VAT is included
- The length of the guarantee and what it covers
- When it can be used again
- Who will actually do the work
Repairs by material
Baths
Baths are resealed with water in them, to open the joint fully.
Sinks and worktops
We reseal basins, vanity tops and kitchen worktops, with the joint fully dried first.
Box and nearby
Box is about 1 mile north-east of Llanelli, in Carmarthenshire. Our repair technicians come to homes and businesses in Box and nearby villages, so nothing has to leave your home. Box is one of 195 towns and villages in Carmarthenshire where we work.
Jobs in SA15 and SA14 work the same way as everywhere else we cover. Streets in the area include Mill Lane, Wern Road and Waun Road, all of which we cover. If you’re just outside Box, we cover Capel (1 mile east), Llanelli (1 mile south-west), Bigyn (1 mile south-west), Pemberton (1 mile east) and Halfway (1 mile east). Larger places within reach include Carmarthen (14 miles north-west), Ammanford (10 miles north-east), Burry Port (4 miles west), Betws (10 miles north-east), Pembrey and Burry Port Town (5 miles west) and Achddu (4 miles west). Being one of Carmarthenshire’s larger places, Box is somewhere we visit often.
Around Box
We visit homes around St Alban's Church, Coedcae School and Penygaer Primary School, among other places. Other local landmarks include St. John Lloyd (0.5 miles east) and Star Hotel (under half a mile north-west). The closest station to Box is Llanelli station, about 1 mile south-west of the centre. Other landmarks nearby include Prince Philip Hospital (0.6 miles north-east) and Llanelli New Castle (0.8 miles west). For a walk, there is WWT Llanelli Wetland Centre and Bryn Harddfan.
FAQs for Box
Do you do work for letting agents?
We do, regularly. We can quote for several properties together and work between tenancies.
Do I need to be at home?
Someone needs to let us in and show us the job. You don’t need to watch us work.
Can you do more than one item on the same visit?
Yes. Combining jobs on one visit brings the cost down. Send photos of everything you’d like done.
What information do you need?
Some photos, your postcode and how to reach you. On the day, we only need access to the room.
How do I stop mould in sealant?
Usually poor ventilation and moisture sitting on the joint. We use mould-resistant silicone, and ventilation helps it last.
How soon can you come?
That depends on our diary for your area. We’ll offer you dates when we send your quote.
How long does resealing take?
Around two hours for a bath, plus curing time.
Is repairing better than replacing?
Generally, if the item is otherwise sound. Repairing avoids the cost and disruption of replacing. If replacing would be better, we’ll say so.
Keeping it looking good
Nothing complicated is needed, just a few sensible habits:
- Clean the sealant gently and regularly
- Keep bottles off the joints
- Replace the seal when mould sets in
- Run the extractor fan during and after showers
Leave the sealant to cure for the time we give you, normally about a day.
Damp below or loose tiles need checking quickly. There may be more going on, so we’ll tell you if it needs a builder or plumber.
Why reseal now?
Sealing over old silicone is a false economy. It soon peels, and traps mould underneath. A proper reseal removes the old first. Set against the cost of replacement, a repair is usually a fraction of the price, because nothing has to be taken out, refitted or made good. Your fixed quote shows exactly what’s included.
Why us?
- CHAS, Constructionline and SafeContractor accredited
- Dust sheets down, tidy finish
- No extra charge for your area
- One-year guarantee on every repair
Take a look at our full price list.
Other services in Box
How it works
We turn up at the time we agreed with you and checks the damage against your photos first. The floor and nearby surfaces are covered before we open a single tin. The work itself takes about two hours for a bath, and the room is left clean and tidy.
- All the old sealant is cut out and removed.
- We clean the joint and treat any mould.
- We ensure the joint is completely dry.
- For a bath, we fill it with water first so the joint is at its widest.
- New mould-resistant silicone goes on and is tooled to a neat finish, taps included.
Preparing for the visit
- Tell us if there are stairs or a lift
- Avoid using the area for a few hours before we arrive
- Have a window or extractor fan available
How to get a price
Send us photos of the damage and one of the whole item, with your SA15 postcode, and we’ll come back with a fixed quote.
Related advice
What affects the price in Box
There’s no charge for travel to Box. The price depends on:
- Whether old repairs or coatings need taking off
- Unusual colours or finishes
- What the surface is made of
- What kind of damage it is
Most people are surprised how affordable a repair is, particularly next to the cost of replacement. Send pictures and we will give you the exact figure.
Getting a price from photos
Good pictures mean an accurate price. Here’s what we find most useful:
- A coin or ruler next to the damage for scale
- Whether it’s been repaired or coated before
- Your postcode, so we can check dates
- A picture taken from further back
If you are in Box and want a price, the easiest route is pictures: one close up, one from further back, plus your postcode. We reply with a fixed quote and our next available dates.
About our accreditations · Every repair comes with a one-year guarantee.

