Cardiff · Wales
Bath & shower resealing (mastic) in Castle, Cardiff
Fixed-price bath resealing in Castle and the surrounding area, done in a single visit in most cases and guaranteed for a year.
- Silicone smeared on tiles
- Old sealant that looks dirty
- Sealant that’s split or lifting
Bath resealing at your home in Castle
Preparation is everything in a reseal: old silicone removed, mould treated, the joint cleaned and dried. Only then does the new sealant go on, as one neat, continuous bead. We regularly repair shower trays & enclosures, wet rooms and kitchen worktops & sinks, and the jobs we see most are unsealed corners and silicone coming away from the tiles.
You are covered after we leave: each job carries a one-year guarantee, and we’ll explain exactly what it covers when we quote.
- Area
- Castle (CF24, CF10, CF11)
- Area hub
- Cardiff
- Guarantee
- 12 months on all our work
- Quotes
- Free, fixed price from pictures
- Telephone
- 0345 017 0787
- Page updated
- 23 October 2026
Keeping it looking good
How the surface is treated afterwards matters. Here’s what we suggest:
- Clean the sealant gently and regularly
- Let steam out after showers
- Wipe the joints dry after use
- Do not stand toiletries on the seal
Use the extractor fan, dry the joints after bathing, and give them a regular clean with a mild cleaner to slow mould growth.
Reseal before water gets in. Split or lifting sealant is a sign it’s time.
What we are called out for in Castle
Joints split if the bath or tray moves, often because it was sealed while the bath was empty.
Keep an eye out for any of the following:
- Old sealant that looks dirty
- Gaps by the taps
- Black spots in the silicone
- Water getting behind the bath or tray
What your quote should include
- How to care for the finish
- The length of the guarantee and what it covers
- When it can be used again
- Who will actually do the work
What your bath or shower is made of matters
Shower trays
We put weight on a tray before sealing it, for the same reason.
Baths
We fill the bath before sealing, to open the joint fully.
Questions from Castle
Can tenants book a repair?
We are happy to deal with the tenant, landlord or agent. Just make sure the landlord agrees.
Will it make a mess?
No. The work area is masked and covered, and we take our waste away with us.
Do I have to be there?
Yes. The technician needs access to the room for the visit, at a time we agree with you.
Which areas do you work in?
We work UK-wide, so Castle is covered. Our prices are the same everywhere.
How long does silicone take to cure?
Normally after around 24 hours. We’ll tell you the exact time.
Do you work in Castle?
We do. Technicians travel to Castle from across the region, with no extra charge for travel.
Can you redo someone else’s repair?
Yes, we frequently do. Removing the old work can add time, and that is in the quote.
Do the materials smell?
There can be some smell while we work, which is why we ventilate. It fades as everything cures.
How it works
We begin by going over the job with you. Then the area is sheeted and masked and we start. Allow a couple of hours, and we’ll tell you if anything changes.
- We cut out and remove all of the old sealant.
- We clean the joint and treat any mould.
- We make sure 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, including around the taps.
Before we arrive
- Point us to the nearest place to park
- Let us know if it has been repaired before
- Plan for the room to be out of bounds to pets and children
How to get a price
Getting a price is easy: take a close-up of the damage and a picture from further back, send them over with your postcode, and you’ll get a fixed price back. There is no charge for the quote and you are under no obligation.
Advice
Where we work around Castle
Castle is about 1 mile south of Cardiff, in Cardiff. From the centre of Castle to the outlying streets, we offer exactly the same service: a fixed quote, a tidy visit and a guarantee. We cover 91 places across Cardiff.
Postcode districts we cover here: CF24, CF10 and CF11. Whether you live on Mill Lane, City Road and Tudor Lane or a nearby road, a technician can come to you. Main roads around Castle include the A4161, which makes travel easy. Close by, we cover Castle Quarter (1 mile south-east), Riverside (1 mile south-west), Cathays (1 mile north), Newtown (1 mile south-east) and Adamsdown (1 mile east). Within a short drive, we also cover Ely (3 miles west), Caerau (3 miles west), St Mellons (4 miles north-east), Llanrumney (4 miles north-east), Morristown (4 miles south) and Fairwater (3 miles west). As one of the bigger places in Cardiff, Castle sees plenty of our work.
Local landmarks in Castle
Around Castle, we work in homes near Eglwys Dewi Sant, Cardiff Muslim Primary School and Slug & Lettuce pub and the streets around them. You will also find Howardian High School (0.8 miles east), Centre for Occupational and Health Psychology (less than half a mile north) and Parc Mackenzie (less than half a mile north-east). There is a railway station in Castle itself: Cathays station. Nearby you’ll also find Firing Line: Cardiff Castle Museum of the Welsh Soldier (under half a mile south) and St David's Hospital (0.5 miles south-west). Green spaces nearby include Cock Hill and Roath Park Lake.
Prices and what affects them
There’s no area surcharge for Castle. What changes the price is:
- Unusual colours or finishes
- Whether we combine several jobs
- The material and finish
- Previous DIY repairs that have to come out
There are no surprise extras on the day. What we quote from your photos is what you pay, and if the damage turns out to be different, we discuss it before starting.
Quotes from your pictures
Two or three clear pictures are generally enough. Try to include:
- One picture of the entire bath or shower
- What it’s made of, if you know
- Any earlier repairs or coatings
- Your postcode, so we can check dates
A quote takes minutes to ask for: photograph the damage, then the whole bath or shower, include your postcode and send them to us. You will get a fixed quote, not an estimate.
When a repair isn’t the answer
Some jobs aren’t right for a repair, including:
- Hollow or loose tiles
- Rotten walls or floors behind the bath
- A bath or tray that moves, until its support is fixed
Send us pictures and we will tell you honestly before booking.
Materials we repair
- Basins & vanity units
- Kitchen worktops & sinks
- Shower trays & enclosures
- Baths
- Wet rooms
Other services in Castle
Work for landlords and builders
We work for landlords, letting agents and housing providers in Castle as well as householders. A repair between tenants keeps the property empty for less time, and it generally costs far less than a refit.
Hotels, guest houses and holiday lets cannot afford rooms out of action for long, so we keep visits short and tidy. We can work around your bookings.
Why reseal now?
A reseal is one of the cheapest bathroom jobs there is. Failed sealant can lead to water damage that is much more expensive. Set against the cost of replacement, repairing generally costs far less, because there’s no removal, plumbing or making good. Your fixed quote shows exactly what’s included.
What you get with us
- No extra charge for your area
- Every repair guaranteed for a year
- No need to remove anything
- CHAS, Constructionline and SafeContractor accredited
Read our full price list.
About our accreditations · Every repair comes with a one-year guarantee.
