Cardiff · Wales
Bath & shower resealing (mastic) in Castleton, Cardiff
Bath resealing in and around Castleton: a fixed quote from pictures, a tidy visit and a one-year guarantee.
- Leaks at the edges
- An untidy old seal
- Gaps in the seal
How we handle bath resealing in Castleton
Baths, trays, basins and kitchen worktops all get resealed using mould-resistant silicone. A typical reseal takes a couple of hours, then it needs to cure. We’re often asked to fix discoloured, yellow sealant and water getting behind the bath or tray, across wet rooms, kitchen worktops & sinks and baths.
A one-year guarantee comes as standard, so you’re covered after the visit.
- Area
- Castleton (CF3)
- Area hub
- Cardiff
- Cover
- A year, on every repair
- Quote
- Free, fixed quote from pictures
- Call
- 0345 017 0787
- Last updated
- 23 October 2026
How the visit works
We agree an arrival time beforehand. Once we are there, the work takes about two hours for a bath in most cases. The room is left tidy.
- We cut out all of the old sealant.
- We remove the residue and clean the joint.
- Any mould is treated and the joint dried.
- The bath is filled with water, or weight put on the tray.
- New mould-resistant silicone is applied and tooled neatly.
Before we arrive
- Keep pets and children out of the room while we work
- Move bottles, mats and clutter away from the area
- Have a window or extractor fan available
How to get a price
For a price in Castleton, 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
How to look after the repair
Much of the damage we repair could have been avoided. A few tips:
- Keep the joints dry
- Store bottles on a shelf
- Clean the sealant gently and regularly
- Replace the seal when mould sets in
Don’t scrape the sealant with anything sharp, and do not stand bottles on the seal.
Damp below or loose tiles need checking quickly. There may be more going on, and we’ll say if you need a builder or plumber.
Work for landlords and builders
For anyone letting property in or around Castleton, we’ll quote for several properties at once. Just send photos for each address and we will come back with a combined price.
Letting agents frequently send us pictures straight from the inventory. You can have a price before you arrange access, and we liaise with tenants about access if you’d like us to.
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 does not stop a professional repair. It does add a little time, so tell us about it when you send pictures.
Kits are cheap and easy to find, but the repairs we redo most frequently are DIY ones that have discoloured or lifted. Doing it properly first is generally the cheaper route.
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, with the joint fully dried first.
Resealing in Castleton: why it matters
A reseal is one of the cheapest bathroom jobs there is, and it protects everything around the bath. Leaving failed sealant can let water cause damage that costs far more to fix. No two jobs are quite the same, so each one is priced on its own. The size and type of damage, the material and access all play a part, and combining jobs on one visit brings the cost down.
Why Castleton customers choose us
- One visit for most repairs
- One-year guarantee on every repair
- Everything repaired in place
- Honest advice, even when it means no job
See our pricing.
Questions from Castleton
Do you come to Castleton?
Yes. We cover the entire UK and come to Castleton and the rest of Cardiff. Send us pictures for a fixed quote, or call 0345 017 0787.
What happens after I send photos?
We look at the pictures and reply with a fixed price and some dates. If we need another angle, we’ll ask.
Is there any odour?
Some materials have a smell while they’re applied. It clears as the materials cure.
Do you do work for letting agents?
Yes. We work for landlords, agents, builders and businesses as well as homeowners.
What does bath resealing cost?
Every job gets a fixed price based on pictures of the damage. Send a close-up and a photo of the whole item and your postcode.
How long does resealing take?
Normally a couple of hours, then it needs to cure.
Are you accredited?
We hold CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile accreditations.
How do I stop mould in sealant?
Mostly moisture and poor ventilation. Mould-resistant silicone and good ventilation help.
Do you need bath resealing in Castleton?
Even good sealant eventually discolours particularly in a well-used bathroom. Steam, soap and movement all wear it down.
The things customers normally mention when they call are:
- Damp near the bath
- Silicone coming away from the tiles
- Black mould in the sealant
- An untidy old seal
What to look for in a quote
- What aftercare is recommended
- Whether there are any call-out or travel charges
- How changes to the job are handled
- How long the guarantee is and what it covers
About Castleton
Castleton is about 5 miles south-west of Newport, in Cardiff. Whether you are in the middle of Castleton or on the outskirts, the service is the same: fixed prices, tidy work and a one-year guarantee. Castleton is one of 91 towns and villages in Cardiff where we work.
Every address in CF3 is within our area. Local streets include Tynewydd Drive, Craig-yr-Haul Drive and Marshfield Road, and we cover them all. We also cover the places around Castleton: Marshfield (1 mile south-east), Michaelston-y-Fedw (1 mile north-west), Pen-y-lan (1 mile north), Coedkernew (2 miles east) and Wentlooge (2 miles east). We also work in nearby towns such as Cardiff (5 miles south-west), Ely (8 miles south-west), Castle (6 miles south-west), Adamsdown (5 miles south-west), Roath (5 miles south-west) and Splott (5 miles south-west).
Around Castleton
Around Castleton, we work in homes near Marshfield Primary School, The Coach and Horses PH pub and Eastern High School. Castleton’s nearest station is Pye Corner station, roughly 3.2 miles north-east. Well-known places in the area include St Woolos Hospital (4.3 miles north-east) and Wentloog Castle (less than half a mile north). The countryside around Castleton includes Roath Park Lake and The Mount.
Towns and villages near Castleton
What else we do in Castleton
What we cannot put right
We won’t take on work that will not last, so here’s what a repair can’t put right:
- Tiles that move, until they’re refixed
- Very wide gaps that need a trim
- Hidden water damage
If in doubt, send pictures and we will say what we think before you book.
Materials we repair
- Wet rooms
- Shower trays & enclosures
- Kitchen worktops & sinks
- Basins & vanity units
- Baths
About our accreditations · Every repair comes with a one-year guarantee.
