Cardiff · Wales
Bath & shower resealing (mastic) in Llanedeyrn, Cardiff
Fixed-price bath resealing in Llanedeyrn and the surrounding area, typically in one visit.
- Discoloured, yellow sealant
- An untidy old seal
- Mould you cannot clean out
Bath resealing at your home in Llanedeyrn
We cut out all of the old sealant, treat any mould, and reseal with new mould-resistant silicone. We do this for baths, showers, sinks and worktops, including the awkward bits behind the taps. We work on baths, shower trays & enclosures and basins & vanity units, and the jobs we see most are gaps in the seal and leaks at the edges.
Your repair is guaranteed for a year, as with every job we do.
- Area
- Llanedeyrn (CF23, CF3)
- County
- Cardiff
- Warranty
- A year, on every repair
- Quotes
- Fixed and free, based on photos
- Telephone
- 0345 017 0787
- Last updated
- 23 October 2026
Looking after it afterwards
Much of the damage we repair could have been avoided. These habits help:
- Let steam out after showers
- Reseal at the first sign of lifting
- Store bottles on a shelf
- Dry the seal after bathing
Avoid scraping the joints, and do not stand bottles on the seal.
Reseal before water gets in. Gaps or lifting edges mean it needs doing.
Common questions in Llanedeyrn
Do you charge for travel?
We do not add a call-out fee. The fixed price covers the visit and the work.
Is a repair better than a new one?
In most cases, yes. A repair skips the removal, fitting and redecorating. We will be honest if it’s not worth it.
What happens after I send pictures?
We check the damage, the material and your postcode, then reply with a quote with dates.
Can you repair something that is been repaired before?
Generally, yes. Let us know what was used before.
Why does my sealant keep splitting?
Normally because the bath or tray moves, or it was sealed with the bath empty. We fill the bath before sealing it.
Can you price it without visiting?
Nearly always. We only ask to see it in person if the pictures cannot show what we need.
Do you cover the whole of Cardiff?
All of Cardiff, and the rest of the UK. There’s no extra charge for travel.
Can you do more than one item on the same visit?
Yes, and it’s frequently cheaper. Send pictures of everything together and you’ll get one combined price.
Common problems we fix in Llanedeyrn
Poor ventilation speeds things up: moisture sits on the joints longer, and mould takes hold.
You may need us if you’ve spotted any of these:
- Silicone smeared on tiles
- Black mould in the sealant
- Gaps by the taps
- Old sealant that looks dirty
Questions to ask before booking
- Whether the colour is mixed to match
- Is the price fixed, and does it include VAT?
- Aftercare advice
- Whether the price covers travel
Why it’s worth resealing in Llanedeyrn
Putting new silicone over old doesn’t last. It peels within weeks, and mould stays trapped behind it. A proper reseal removes the old first. A repair is priced on what needs doing, not your postcode. You’ll see the full price before booking, with nothing added on the day.
Why choose Surface Doctor in Llanedeyrn
- Nothing taken out or refitted
- We’ll tell you if it’s not worth repairing
- We leave the room as we found it
- One price list for the entire UK
Read our pricing.
DIY kit or professional repair?
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 usually the cheaper route.
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.
Llanedeyrn and the surrounding area
Llanedeyrn is about 1 mile north-east of Penylan, in Cardiff. Anywhere in CF23, a technician comes to you. Llanedeyrn is one of 91 places in Cardiff where we work.
Our technicians cover all of the CF23 and CF3 postcode area. Whether you live on Cyn-Coed Road, Hollybush Road and Eastern Avenue or anywhere nearby, a technician can come to you. Other places close to Llanedeyrn include Cyncoed (1 mile north-west), Rumney (1 mile east), Penylan (1 mile south-west), Roath Park (1 mile west) and Pentwyn (1 mile north-east). We also work in nearby towns such as Ely (5 miles south-west), Newtown (3 miles south), Caerau (5 miles south-west), Riverside (3 miles south-west), Grangetown (4 miles south-west) and Victoria Park (3 miles south-west).
Near you in Llanedeyrn
Locally, our jobs take us to homes close to Cyncoed Methodist Church, Llanedeyrn High School and Roath Park. Also close by are St Phillip Evans R.C. Primary School (under half a mile north) and The Retreat pub (under half a mile south-west). For rail, the closest station is Heath High Level station, roughly 1.3 miles west of the centre. Further afield, we also cover the area around Regimental Museum of 1st The Queens Dragoon Guards (1.8 miles south-west) and University Dental Hospital on Cardiff University (1.8 miles west). Open spaces near Llanedeyrn include Roath Park Lake and Glamorgan Canal / Long Wood.
Different materials, different repairs
Shower trays
Trays are sealed with weight on them, for the same reason.
Sinks and worktops
Basins, vanity units and kitchen worktops are resealed too, with the joint fully dried first.
What a repair can’t fix
Honesty matters more than a booking, so here’s what a repair won’t do:
- Tiles that move, until they’re refixed
- Gaps too big for silicone alone
- A flexing bath
If in doubt, send photos and we will say what we think before you book.
Surfaces we repair
- Basins & vanity units
- Wet rooms
- Shower trays & enclosures
- Kitchen worktops & sinks
- Baths
Places near Llanedeyrn
Also in Llanedeyrn
What bath resealing costs
We price every job individually. What matters most is:
- How easy the damage is to reach
- How many items we do on one visit
- The size and number of damaged areas
- Whether it’s a chip, crack, burn or wear
Set against the cost of replacement, a repair is typically a fraction of the price, because there’s no removal, plumbing or making good. Your fixed quote shows exactly what’s included.
Quotes from your pictures
Two or three clear pictures are typically enough. Try to include:
- The postcode, so we can plan the visit
- Natural light rather than flash
- What it’s made of, if you know
- A close-up of the damage, in focus
Most clients in Llanedeyrn get their price from pictures. Tell us what happened and where you are, and we’ll reply with a fixed quote and the earliest dates we have.
How it works
There is not much you need to do on the day. Let us in and show us the room, and we will get on with it. Most visits take around two hours, tidy-up included.
- All the old sealant is cut out and removed.
- We clean the joint and treat any mould.
- The joint is dried thoroughly.
- 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.
Getting ready for the visit
- Let us know about parking or access
- Ensure the room can be ventilated
- Avoid using the area for a few hours before we arrive
Get a quote
If you are in Llanedeyrn and want a price, the easiest route is photos: one close up, one from further back, plus your postcode. You’ll get a fixed quote with dates to choose from.
Read more
About our accreditations · Every repair comes with a one-year guarantee.
