Swansea · Wales
Bath & shower resealing (mastic) in Castle, Swansea
Bath, shower and sink resealing with new mould-resistant silicone for homes and businesses in Castle and across Swansea. Free, fixed quotes from your photos.
- Discoloured, yellow sealant
- Silicone coming away from the tiles
- Gaps by the taps
Bath resealing at your home in Castle
We reseal baths with them filled with water, so the joint opens fully, which stops the new seal tearing the first time the bath is used. Our repair technicians work on shower trays & enclosures, baths and wet rooms, and the jobs we see most are black mould in the sealant and sealant that’s split or lifting.
You’re covered for a year from the day of the repair. If anything isn’t right, ring us and we will come back.
- Location
- Castle (SA1, SA2, SA5)
- Area hub
- Swansea
- Guarantee
- One year on every repair
- Quotes
- Free, fixed price from pictures
- Telephone
- 0345 017 0787
- Updated
- 23 October 2026
Do you need bath resealing in Castle?
Poor ventilation speeds things up: moisture sits on the joints longer, and mould takes hold.
People normally call us after spotting one of these:
- A messy previous reseal
- Black spots in the silicone
- Stained silicone
- Water getting behind the bath or tray
What your quote should include
- How the colour is matched
- How soon you can use it again
- Who will actually do the work
- A fixed price, and whether VAT is included
Why reseal now?
Putting new silicone over old doesn’t last. It soon peels, and mould stays trapped behind it. A proper reseal removes the old first. We do not add extras on the day. What we quote from your photos is what you pay, and if the damage turns out to be different, we discuss it before starting.
Why book with us
- Dust sheets down, tidy finish
- CHAS and Constructionline accredited
- Normally one visit, start to finish
- Fixed prices from your pictures
See our full price list.
Where we work around Castle
Castle is about 1 mile south-east of Swansea, in Swansea. Jobs in Castle are booked in like any other job: a fixed quote from photos, and a technician at your door on the day. Castle is one of 153 places in Swansea we cover.
Every address in SA1, SA2 and SA5 is within our area, from the main roads to the quietest streets. We regularly work on streets such as Page Lane, Berw Road and Alun Road. Castle sits on or near the A483 and A4067, so getting to you is simple. Other places close to Castle include Mount Pleasant (1 mile north-west), Dyfaty (1 mile north), Brunswick (1 mile south-west), Sandfields (1 mile south-west) and Maritime Quarter (1 mile south-east). Within a short drive, we also cover Morriston (3 miles north), Gorseinon (5 miles north-west), Llwchwr (5 miles north-west), Mumbles (3 miles south-west), Penderry (3 miles north-west) and Norton (4 miles south-west). As one of the bigger places in Swansea, Castle is somewhere we visit often.
Near you in Castle
In Castle, that means homes near High Street English Unitarian Church, Oxford Street Senior Boys' School and The Dragon Brasserie (The Dragon Hotel), among other places. Nearby too are Dynevor School (under half a mile south-west), Cwm Level Park (1.7 miles north) and Terrace Road Primary School (0.5 miles west). There’s a railway station in Castle itself: Swansea station. Nearby you’ll also find Swansea Museum (within half a mile south-east) and Original Swansea Castle (under half a mile east). Not far away are Pluck Lake and Townhill.
Repairs by material
Sinks and worktops
Basins, vanity units and kitchen worktops are resealed too, with the joint fully dried first.
Shower trays
Trays are sealed with weight on them, for the same reason.
Should I try a DIY kit first?
It’s natural to want to try a repair yourself. The risk is that a kit repair hides the damage for a while, then fails, and the old filler has to come out before a proper repair.
DIY kits are sold for most surfaces, and they can make a small mark look better. Where they fall down is colour and preparation: kits come in a few standard shades, and without proper cleaning and keying the filler frequently lifts.
The process
We turn up at the time we agreed with you, introduces themselves and looks over the damage before anything else. The floor and nearby surfaces are covered before we open a single tin. Most visits take a couple of hours, and the room is left clean and tidy.
- The surrounding area is protected and the joints masked.
- Old sealant and residue are removed.
- We clean, treat and dry the joint.
- Fresh silicone is applied in a continuous bead.
- We smooth the bead, remove the tape and leave it to cure.
Getting ready for the visit
- Keep a parking space free if you can
- Mention if the room is upstairs or in a flat
- Let the surface dry out before the visit
Getting a price
The quickest way to a price is to send a couple of photos through our quote form or ring us. We’ll say straight away whether it can be repaired.
Related advice
How to care for the repair
A little care keeps the finish looking good. We recommend:
- Give the seal a regular clean
- Open a window after bathing
- Ventilate the bathroom well
- Keep bottles off the joints
Do not scrape the sealant with anything sharp, and keep shampoo bottles off the joints.
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.
Work for landlords and builders
We regularly work with letting and managing agents. Just send photos, the address and how to get access and we’ll handle the rest.
Builders use us to fix snagging damage before handover, so there is no need to replace a damaged item at the last minute. We can visit several plots in one trip.
Places near Castle
Other services in Castle
Your questions about bath resealing in Castle
Is a repair better than a new one?
In most cases, yes. Replacement brings removal, refitting and making good, which a repair avoids. We will be honest if it’s not worth it.
When can you do it?
We will give you dates with your quote. Tell us if you need it done quickly.
What happens if you find more damage?
If we find something the pictures didn’t show, we explain it first. You decide whether to go ahead.
How do I stop mould in sealant?
Mould needs moisture. Ventilation and drying keep it clean longer.
How long does silicone take to cure?
We will give you the curing time, usually around a day.
Why does the silicone keep cracking?
The bath or tray is probably flexing. If it keeps happening, the support may need fixing.
What happens next?
We look at the pictures and reply with a fixed quote and some dates. If anything’s unclear, we’ll ask for another photo.
I’m a tenant. Can you help?
We’re happy to deal with the tenant, landlord or agent. Just make sure the landlord agrees.
How we price bath resealing
Every quote is fixed and free. What we take into account:
- The type of damage
- The material
- Whether old repairs or coatings need taking off
- Doing more than one item at once
A few things move the price: the amount of damage, the material, access to the area, and how many jobs we do in one trip. Photos let us give you a fixed figure.
Send pictures for a quote
The better the photos, the more accurate the price. Here’s what we find most useful:
- Where you are, by postcode
- One sharp close-up of the damage
- The material, if you know it
- Details of any past repairs
Call 0345 017 0787 or use the quote form. With a clear picture of the damage and one of the whole bath or shower, we can give you a fixed price.
About our accreditations · Every repair comes with a one-year guarantee.
