Gwynedd · Wales
Bath & shower resealing (mastic) in Trefor, Gwynedd
Bath, shower and sink resealing with new mould-resistant silicone for homes and businesses in Trefor and across Gwynedd. Send pictures for a free, fixed quote.
- Old sealant that looks dirty
- Black spots in the silicone
- Unsealed corners
How we handle bath resealing in Trefor
Baths, trays, basins and kitchen worktops all get resealed. A typical reseal takes a couple of hours, plus curing time. If you are dealing with a messy previous reseal and silicone coming away from the tiles, we can help, on baths, kitchen worktops & sinks and shower trays & enclosures alike.
Peace of mind is built in: each job carries a one-year guarantee, and we explain what it covers before you book.
- Where
- Trefor (LL54)
- Area hub
- Gwynedd
- Guarantee
- One year on every repair
- Quote
- Free and fixed, from your photos
- Telephone
- 0345 017 0787
- Last updated
- 23 October 2026
Looking after it afterwards
Simple care helps the repair last. Our advice:
- Ventilate the bathroom well
- Let steam out after showers
- Clean the joints with a mild cleaner
- Reseal when black spots will not clean off
Don’t scrape the sealant with anything sharp, and do not stand bottles on the seal.
Don’t wait until water gets behind the bath. Split or lifting sealant is a sign it’s time.
For landlords and businesses
Hospitality businesses need rooms back in use quickly, so we keep visits short and tidy. We’ll fit around changeovers where we can.
We work for landlords, letting agents and housing providers in Trefor as well as homeowners. Repairing between tenancies keeps void periods short, and it typically costs far less than a refit.
Honest limits
To be straight with you, there are a few things a repair won’t fix:
- Tiles that move, until they’re refixed
- Very wide gaps that need a trim
- A bath or tray that moves, until its support is fixed
Send us photos and we will tell you honestly.
Materials we repair
- Kitchen worktops & sinks
- Wet rooms
- Baths
- Shower trays & enclosures
- Basins & vanity units
What happens on the day
On the day, the technician arrives at the agreed time, protects the room with dust sheets and masking and gets started. Expect it to take about two hours for a bath. We clean up when we’re done and let you know when you can use it again.
- We cut out and remove all of the old sealant.
- The joint is cleaned and any mould treated.
- We dry the joint thoroughly.
- For a bath, we fill it 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.
Before we arrive
- Tell us about parking, stairs or access
- Have somewhere for us to park nearby if possible
- Tell us if there are stairs or a lift
Ask for a price
If you are in Trefor and want a price, the easiest route is pictures: a close-up, a wider shot and your postcode. You will get a fixed quote with dates to choose from.
Related advice
Covering Trefor
Trefor is about 20 miles south-west of Bangor, in Gwynedd. Our work suits any type of property, old or new, large or small, as well as offices, shops and holiday lets. Trefor is one of 165 towns and villages in Gwynedd where we work. Our nearest city page is Liverpool, about 68 miles away.
Our visits in LL54 work the same way as everywhere else we cover. Local streets include Croes-Higol Road, Stad Llywynaethnen and Maes Gwydir, and we cover them all. If you’re just outside Trefor, we cover Llanaelhaearn (2 miles south-east), Llithfaen (3 miles south-west), Clynnog Fawr (3 miles north-east), Pistyll (4 miles south-west) and Rhos-fawr (5 miles south). Within a short drive, we also cover Caernarfon (12 miles north-east), Pwllheli (7 miles south), Llanbeblig (12 miles north-east), Porthmadog (13 miles east), Morfa Nefyn (7 miles south-west) and Llanberis (15 miles north-east).
Landmarks near Trefor
In Trefor, that means homes near St George's Church and the streets around them. Further afield, we also cover the area around Bryn Beryl hospital (5.8 miles south) and Vortigern Castle (1.8 miles south-west). Open spaces near Trefor include Garn Fôr and Llyn Glasfryn.
Towns and villages near Trefor
Other services in Trefor
Questions from Trefor
What happens after I send photos?
We review the photos and send a fixed quote and the next dates we have.
Can tenants book a repair?
Yes, but check with your landlord or agent first. Landlords are often glad to have it sorted.
Which areas do you work in?
We work UK-wide. Our prices are the same everywhere.
Why does the silicone keep cracking?
The bath or tray is probably flexing. If it keeps happening, the support may need fixing.
Can new silicone go over old?
No, we never seal over old silicone. It’s removed, cleaned off and the joint dried first.
Do you work in Trefor?
Yes. We cover the whole UK and travel to Trefor. Send photos and we’ll quote, or call 0345 017 0787.
Is my repair covered?
Yes: twelve months. If there’s a problem with the work in that time, we come back and put it right.
Is there a call-out fee?
We don’t add a call-out fee. The fixed quote covers the visit and the work.
What we are called out for in Trefor
In time, even good sealant discolours, especially in a busy family bathroom. Steam, soap and movement all wear it down.
If you can see any of these, send us a picture:
- Black spots in the silicone
- Gaps by the taps
- Stained silicone
- Sealant that is split or lifting
What to look for in a quote
- What prep work is covered
- When it can be used again
- How changes to the job are handled
- Whether the colour is mixed to match
Why reseal now?
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. Our prices are the same across the UK, so there’s no premium for Trefor. The job itself decides the price: how much damage, what it’s made of and how many items.
Why choose Surface Doctor in Trefor
- Straight answers about what a repair can do
- Fixed prices from your photos
- No extra charge for your area
- Work done at your home or business
See our prices page.
DIY repairs versus a professional job
A DIY attempt isn’t a disaster. We take the old repair out and do it properly, so it doesn’t stop a professional repair. It does add a little time, so tell us about it when you send photos.
A kit can be fine for a tiny mark out of sight. For anything you look at every day, anything that has rusted, cracked or holed, or anything on a coloured surface, a professional repair is worth it.
Repairs by material
Shower trays
We put weight on a tray before sealing it, for the same reason.
Sinks and worktops
Basins, vanity units and kitchen worktops are resealed too, once the joint is completely dry.
About our accreditations · Every repair comes with a one-year guarantee.
