Swansea · Wales
Bath & shower resealing (mastic) in Cwmdu, Swansea
Bath, shower and sink resealing with new mould-resistant silicone for homes and businesses in Cwmdu and across Swansea. Fixed quotes from your photos.
- Gaps in the seal
- Water getting behind the bath or tray
- Black spots in the silicone

Is resealing worth it?
A reseal is one of the cheapest bathroom jobs there is. Leaving failed sealant can let water cause damage that costs far more to fix. In a smaller place like Cwmdu, getting trades out for a full replacement can take time to arrange. A repair is one visit from us.
A repair normally costs much less than people expect, particularly next to the cost of replacement. Send photos and we will give you the exact figure.
Why book with us
- Same prices wherever you are
- Technicians who travel to you, UK-wide
- Typically one visit, start to finish
- Accredited with CHAS, Constructionline and SafeContractor
Read our Pricing.
How we handle bath resealing in Cwmdu
A proper reseal starts with removing every trace of the old silicone. Fresh sealant doesn’t stick to old, which is why so many DIY reseals peel. Our repair technicians work on kitchen worktops & sinks, basins & vanity units and wet rooms, and the jobs we see most are leaks at the edges and mould you can’t clean out.
Around Cwmdu, homes are mostly houses and bungalows, where a reseal is a quick job that keeps water out.
You are covered after we leave: each job carries a one-year guarantee, and we will explain exactly what it covers when we quote.
- Area
- Cwmdu (SA5, SA1, SA2)
- Region
- Swansea
- Guarantee
- A year, on every repair
- Quotes
- Fixed, from your pictures
- Phone
- 0345 017 0787
- Page updated
- 23 October 2026

FAQs for Cwmdu
Do you take on commercial work in Cwmdu?
Yes. We hold CHAS, Constructionline and SafeContractor accreditations and work for schools, leisure centres and businesses. We will agree timings that suit the building.
I let a flat near Swansea station. Can you help between tenants?
Of course: pictures and an address are all we need for a price.
What does bath resealing cost?
The exact price depends on the damage, so we quote from photos. You know the full cost before anything is booked.
Can you price it without visiting?
In nearly every case. We only ask to see it in person if the pictures cannot show what we need.
Do you hold any accreditations?
We hold CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile accreditations.
Why does my sealant keep going mouldy?
Mould needs moisture. Run the fan, dry the joints and the new seal stays cleaner for longer.
Which areas do you work in?
All of Swansea, and the rest of the UK. There is no extra charge for travel.
Do you seal over the old sealant?
No, we never seal over old silicone. The old sealant is cut out and the joint cleaned and dried.
What happens on the day
It’s a tidy, low-fuss 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 anything looks different from your pictures, we will talk to you before going ahead. Visits around Cwmdu are usually simple: we park, protect the room and get started.
- All the old sealant is cut out and removed.
- Next we clean the joint and deal with mould.
- We dry the joint thoroughly.
- Baths are filled with water first, so the joint is at its widest.
- We run a new bead of mould-resistant silicone and smooth it neatly, taps included.
Getting ready for the visit
- Let the surface dry out before the visit
- Tell us about parking, stairs or access
- Let us know which floor the room is on
Getting a price
You don’t need a survey visit. Photos are enough for us to price nearly every job: we need a close-up, a wider picture and your postcode, and we’ll reply with a fixed price.
Read more
Aftercare tips
Good habits make a big difference to how long a repair lasts. Here’s what we suggest:
- Keep bottles off the joints
- Reseal when black spots will not clean off
- Open a window after bathing
- Dry the seal after bathing
Avoid scraping the joints, and keep shampoo bottles off the joints.
Black mould in sealant isn’t just unsightly, it’s a sign moisture is sitting in the joint. An early reseal keeps water where it belongs.
When to call us in Cwmdu
Most reseals are because of black mould. It grows into the sealant itself, so cleaning only removes the surface.
Signs it’s time to call us include:
- Stained silicone
- Unsealed corners
- Leaks at the edges
- Silicone coming away from the tiles
Landlords with property near Swansea station (about 1.2 miles south-east) use us between tenancies, so baths and showers are repaired rather than replaced.
Questions to ask before booking
- Who turns up on the day
- If travel is included in the price
- How to look after the finish
- When it can be used again
More services for Cwmdu
What affects the price in Cwmdu
There’s no area surcharge for Cwmdu. The price reflects:
- How hard the colour is to match
- The type of damage
- Access to the area
- Whether we combine several jobs
Set against the cost of replacement, repairing typically costs far less, because nothing has to be taken out, refitted or made good. Your fixed quote shows exactly what’s included.
How to get a fixed quote
When you take your photos, a few simple things make all the difference:
- Daylight if possible, and no flash reflection
- A photo taken from further back
- A close-up of the damage, in focus
- Your postcode, so we can check dates
To get a price, send two or three pictures using our quote form or call us. We’ll say immediately if a repair is the right fix.
Work for landlords and builders
Rented homes see more wear and tear, and replacing things at every changeover adds up. Repairing between tenants keeps the property presentable for less.
Builders use us to fix snagging damage before handover, so there is no need to replace a damaged item at the last minute. Several plots can be done in one visit to keep costs down.
DIY kit or professional repair?
A kit can be fine for a tiny mark out of sight. For damage in plain view, cracks, holes or rust, or coloured finishes, a professional repair is worth it.
It’s tempting to reach for a kit, but the repairs we redo most often are DIY ones that have discoloured or lifted. Doing it properly first is typically the cheaper route.
Cwmdu bathrooms and sealant
If you manage a building such as Burlais Primary, we repair changing rooms and washrooms as well as work in homes.
Cwmdu is about 1 mile north-west of Swansea, in Swansea. Wherever you are in the SA5 postcode area, we come to you. Cwmdu is one of 153 towns and villages in Swansea where we work.
Postcode districts we cover here for bath resealing: SA5, SA1 and SA2. We cover homes on Weig Road, Gwent Road and Emlyn Road. Close by, we cover Cwmbwrla (1 mile east), Manselton (1 mile east), Swansea (1 mile south-east), Brynhyfryd (1 mile north-east) and Townhill (1 mile south). Larger places within reach include Morriston (3 miles north-east), Gorseinon (4 miles north-west), Llwchwr (4 miles west), Mumbles (4 miles south-west), Norton (4 miles south-west) and Clydach (5 miles north-east).
Near you in Cwmdu
Our clients here include homes close to Travellers Well Inn, Ffynone House School and Cwm Level Park and the streets around them. The nearest railway station is Swansea station, about 1.2 miles south-east. Further afield, we also cover the area around Original Swansea Castle (1.4 miles south-east) and Swansea Museum (1.7 miles south-east). Not far away are Townhill and Pluck Lake.
What we can’t put right
A repair is not always the answer, and we will tell you before we start. We cannot fix:
- Loose tiles, which need refixing first
- Gaps too big for silicone alone
- Movement in the bath or tray
Not sure? Send pictures and we’ll give you a straight answer before booking.
What we work on
- Shower trays & enclosures
- Kitchen worktops & sinks
- Wet rooms
- Baths
- Basins & vanity units
About our accreditations · Every repair comes with a one-year guarantee.

