Denbighshire · Wales
Bath & shower resealing (mastic) in Cwm, Denbighshire
Bath, shower and sink resealing with new mould-resistant silicone in Cwm, carried out at your home and guaranteed for a year.
- Stained silicone
- Leaks at the edges
- An untidy old seal
Common problems we fix in Cwm
Most reseals are because of black mould. It grows into the silicone, so cleaning only removes the surface.
Keep an eye out for these signs:
- Silicone smeared on tiles
- Silicone coming away from the tiles
- Water getting behind the bath or tray
- Unsealed corners
Questions to ask before booking
- How changes to the job are handled
- Who turns up on the day
- How your room will be protected
- Whether cleaning and preparation are in the price
Bath resealing in Cwm without replacing anything
The key to a good reseal is getting all of the old silicone out. New silicone will not bond to old, which is why so many DIY reseals peel. Common call-outs are for discoloured, yellow sealant and gaps in the seal, in kitchen worktops & sinks, wet rooms and shower trays & enclosures.
Big or small, you get the same one-year guarantee in Cwm and across Denbighshire.
- Where
- Cwm (LL18)
- Area hub
- Denbighshire
- Warranty
- 12 months on all our work
- Quotes
- Free and fixed, from your pictures
- Telephone
- 0345 017 0787
- Updated
- 23 October 2026
Aftercare tips
After the repair has cured, a few habits help it last:
- Clean the sealant gently and regularly
- Run the extractor fan during and after showers
- Replace the seal when mould sets in
- Store bottles on a shelf
Leave the sealant to cure for the time we give you, generally around 24 hours.
If you notice damp, stains on the ceiling below or loose tiles, act quickly. There may be more going on, and we will say if you need a builder or plumber.
Prices and what affects them
Quotes are free and the price is fixed. What we look at:
- Whether old repairs or coatings need taking off
- Whether it’s a chip, crack, burn or wear
- Where the damage is and how we get to it
- How many areas need work
There are no surprise extras on the day. What we quote from your photos is what you pay, unless the damage turns out to be different, in which case we talk to you first.
Send photos for a quote
Almost every job we do is priced from pictures. This is what we need:
- What it’s made of, if you know
- Something in shot to show the size
- Your postcode, so we can check dates
- A wider photo showing the whole bath or shower
For a price in Cwm, photos are the quickest way: a close-up, a wider shot and your postcode. You will get a fixed quote with dates to choose from.
What we cannot put right
Honesty matters more than a booking, so here’s what a repair cannot fix:
- A bath or tray that moves, until its support is fixed
- Hidden water damage
- Loose tiles, which need refixing first
Send us pictures and we’ll tell you honestly.
What we work on
- Wet rooms
- Kitchen worktops & sinks
- Baths
- Shower trays & enclosures
- Basins & vanity units
Cwm and nearby
Cwm is about 3 miles south of Prestatyn, in Denbighshire. Our work suits any type of property, from flats and terraces to detached houses and new builds, plus businesses and rented homes. We work in all 81 towns and villages across Denbighshire. You can also see our page for Liverpool, about 21 miles away.
Here we cover the LL18 postcode area. Whether you live on Elwy Avenue, Ffordd-y-Cwm and Ffordd Ffynnon or anywhere nearby, we can come to you. Other places close to Cwm include Ochr-y-foel (1 mile north), Pen-y-ffordd (2 miles west), Rhuddlan (2 miles west), St Asaph (3 miles south-west) and Nant-y-Patrick (4 miles south). Further out, we also cover Rhyl (4 miles north-west), Prestatyn (3 miles north), Denbigh (7 miles south), Ruthin (12 miles south), Kinmel Bay (5 miles west) and Fron (7 miles south).
Around Cwm
We visit homes around The Blue Lion Inn, Ysgol Hiraddug and Ysgol Glan Clwyd. The nearest railway station is Prestatyn station, roughly 3.5 miles north. Other landmarks nearby include H.M. Stanley Hospital (2.6 miles south-west) and St Asaph Cathedral Museum (2.5 miles south-west). Not far away are Rhuddlan Nature Reserve and Y Foel.
Can I fix it myself?
A DIY attempt isn’t a disaster. We remove the old filler and start again, so it does not stop a professional repair. Just mention it when you send photos, as it can add time.
If you’re set on a kit, follow its instructions closely, make sure the area is clean and completely dry, and do not use it until it has fully cured. If it doesn’t work out, we can still repair it properly.
The process
Nothing needs to be moved out of the room beforehand. Everything we use comes in the van with us, lay protective sheets and start once you’re happy with the plan. Most jobs take a couple of hours, and you’re welcome to carry on with your day while we work.
- We cut out and remove all of the old sealant.
- Next we clean the joint and deal with mould.
- We ensure the joint is completely dry.
- Baths are filled 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.
Getting ready for the visit
- Have a window or extractor fan available
- Let us know about parking or access
- Mention if the room is upstairs or in a flat
How to get a price
There’s no need for us to visit first. Photos are enough for us to price nearly every job: send a close-up, a wider shot and your postcode, and we will reply with a fixed price.
Related advice
Landlord and trade work in Cwm
Hospitality businesses cannot afford rooms out of action for long, so most of our work is done in a single visit. We can work around your bookings.
We work for landlords, letting agents and housing providers in Cwm as well as householders. Repairing between tenancies keeps void periods short, and it costs much less than replacing.
Cwm questions
Can new silicone go over old?
We always remove the old sealant completely. Fresh silicone doesn’t stick to old.
Can pets and children be at home?
Please keep children and pets out of the room during the visit and until it has cured. The rest of the house is unaffected.
How soon can you come?
Your quote comes with available dates. If it’s urgent, say so and we’ll do what we can.
Do you work in Cwm?
We do. We send a technician to Cwm for every job, and the price is the same as everywhere else.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Will the price change on the day?
We will show you and explain before doing anything extra. Nothing extra is done without your say-so.
How long does silicone take to cure?
Generally after around 24 hours. We confirm before we leave.
Are you accredited?
We’re accredited with CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile.
Why it’s worth resealing in Cwm
Resealing is a small job. Leaving split or mouldy sealant can let water reach the walls and floor, and that damage costs much more to fix. It helps to know what pushes a price up or down: access, material, the extent of the damage and whether we can do several items together. Send pictures and you’ll get a fixed figure.
Why book with us
- We leave the room as we found it
- Everything repaired in place
- Every repair guaranteed for a year
- A fixed quote before you book
See our prices page.
Towns and villages near Cwm
Other services in Cwm
About our accreditations · Every repair comes with a one-year guarantee.
