Cardiff · Wales
Bath Resealing in Llanrumney
Bath resealing in and around Llanrumney: a fixed quote from pictures, a tidy visit and a one-year guarantee.
- Gaps in the seal
- Black spots in the silicone
- Water getting behind the bath or tray

Bath resealing in Llanrumney, done in place
We reseal baths, shower trays, basins and worktops. A typical reseal takes a couple of hours, plus curing time. If you are dealing with sealant that’s split or lifting and damp near the bath, we can usually put it right, on kitchen worktops & sinks, shower trays & enclosures and wet rooms alike.
Peace of mind is built in: each job carries a one-year guarantee, and we’ll explain exactly what it covers when we quote.
- Where
- Llanrumney (CF3, CF23, CF30)
- Area hub
- Cardiff
- Cover
- A year, on every repair
- Quotes
- Free, fixed price from pictures
- Phone
- 0345 017 0787
- Last updated
- 23 October 2026

Why reseal now?
Sealing over old silicone is a false economy. It peels within weeks, and mould stays trapped behind it. A proper reseal removes the old first. We do not add extras on the day. The price we quote from your pictures is the price you pay, and if the damage turns out to be different, we discuss it before starting.
Why choose Surface Doctor in Llanrumney
- CHAS and Constructionline accredited
- We’ll tell you if it’s not worth repairing
- One price list for the whole UK
- One visit for most repairs
Read our prices page.
When to call us in Llanrumney
Black mould is the most common reason people reseal. It grows into the sealant itself, so cleaning only removes the surface.
Customers usually contact us about:
- Discoloured, yellow sealant
- Damp near the bath
- An untidy old seal
- Black spots in the silicone
What to look for in a quote
- Whether the price is fixed and includes VAT
- What happens if they find more damage
- Whether a trained technician does the job
- What the guarantee covers, and for how long
What happens on the day
There is not much you need to do on the day. Show us the job, point us to the room, and we’ll get on with it. The job generally runs to a couple of hours, including clearing up.
- First we strip out every bit of the old mastic.
- The joint is cleaned and any mould treated.
- The joint is dried thoroughly.
- 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, including around the taps.
How to prepare
- Mention any earlier repairs or resurfacing
- Tell us if there are stairs or a lift
- Clear the area around the damage
Getting a price
Getting a price is easy: snap the damage close up and then the whole item, send them to us with your postcode, and we will reply with a fixed price. There’s no charge for the quote and no obligation.
Advice
Llanrumney and nearby
Llanrumney is about 3 miles north-east of Cardiff, in Cardiff. We travel to clients in Llanrumney and nearby villages, so nothing has to leave your home. Llanrumney is one of 91 places in Cardiff where we work.
We work across the CF3, CF23 and CF30 postcode area. Local streets include Ball Road, Ball Lane and Uphill Road, all of which we cover. If you’re just outside Llanrumney, we cover Pentwyn (1 mile north-west), Trowbridge (1 mile south-east), Old St Mellons (1 mile north-east), Llanedeyrn Village (1 mile north) and St Mellons (1 mile east). Within a short drive, we also cover Cardiff (3 miles south-west), Ely (6 miles south-west), Castle (4 miles south-west), Adamsdown (3 miles south-west), Roath (3 miles south-west) and Splott (3 miles south-west).
Local landmarks in Llanrumney
We visit homes around Llanrumney Hall pub, Llanrumney High School and St Cadoc's Church. Nearby too are St Cadoc's Primary School (less than half a mile north) and St Mellon's Church (0.6 miles north-east). The nearest railway station is Heath High Level station, about 2.4 miles west of the centre. Nearby you’ll also find Caer Castell (0.6 miles south-east) and Children's Hospital for Wales (3 miles south-west). Not far away are Craig Llysfaen and Roath Park Lake.
Landlord and trade work in Llanrumney
Builders, developers and site managers book us for snagging repairs, putting right damage done during fitting. We hold CHAS, Constructionline and SafeContractor accreditations.
If you manage property in Llanrumney, we can repair and quote for several addresses together. Just send photos for each address and we will come back with a combined price.
Aftercare tips
Good habits make a big difference to how long a repair lasts. Here’s what we suggest:
- Keep the joints dry
- Run the extractor fan during and after showers
- Store bottles on a shelf
- Give the seal a regular clean
Good ventilation is the best protection, and wipe the joints after use.
Black mould in sealant isn’t just unsightly, it’s a sign moisture is sitting in the joint. Resealing early keeps water out of the walls and floor.
What affects the price in Llanrumney
Every quote is fixed and free. What we take into account:
- Whether old repairs or coatings need taking off
- How hard the colour is to match
- How many items we do on one visit
- How much damage there is
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. Send pictures and you’ll get a fixed figure.
Quotes from your photos
Most quotes are done from photos alone. To make it quick:
- Any earlier repairs or coatings
- Daylight if possible, and no flash reflection
- A clear, close picture of the problem area
- Your postcode, so we can check dates
If you are in Llanrumney and want a price, the easiest route is pictures: one close up, one from further back, plus your postcode. You will get a fixed quote with dates to choose from.
DIY repairs versus a professional job
If you do try a kit, read the instructions carefully and work on a clean, dry surface, and give it the full curing time. If it does not work out, we can still repair it properly.
We understand the appeal of fixing it yourself. The trouble is that kit repairs frequently look fine at first and then fail, and the old filler has to come out before a proper repair.
Towns and villages near Llanrumney
Other services in Llanrumney
Repairs by material
Shower trays
We put weight on a tray before sealing it, for the same reason.
Sinks and worktops
We reseal basins, vanity tops and kitchen worktops, with the joint fully dried first.
Your questions about bath resealing in Llanrumney
Can I add another job to the visit?
Yes. Combining jobs on one visit brings the cost down. Include pictures of each item.
Why does the silicone keep cracking?
Typically because the bath or tray moves. We seal baths full of water.
What do you need from me?
Send photos through the quote form or call 0345 017 0787, and we will take it from there.
Will you leave a mess?
We protect the room with dust sheets and masking first, and we clean up when we’ve finished.
Can tenants book a repair?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Are there extra charges for Llanrumney?
There’s no separate call-out charge. Your fixed price includes everything.
How long does silicone take to cure?
Normally about a day later. We will tell you the exact time.
Is the work guaranteed?
All our work carries a one-year guarantee. Ask us what it covers when you get your quote.
About our accreditations · Every repair comes with a one-year guarantee.

