Cardiff · Wales
Bath & shower resealing (mastic) in Wenallt, Cardiff
Bath, shower and sink resealing with new mould-resistant silicone for homes and businesses in Wenallt and across Cardiff. Send photos for a free, fixed quote.
- Silicone coming away from the tiles
- Black spots in the silicone
- Water getting behind the bath or tray
What we can’t put right
A repair isn’t always the answer, and we’ll tell you before we start. Repairs will not solve:
- Water damage behind the bath that needs a builder
- Loose tiles, which need refixing first
- A bath or tray that moves, until its support is fixed
Not sure? Send pictures and we’ll give you a straight answer before you book.
What we work on
- Shower trays & enclosures
- Basins & vanity units
- Baths
- Kitchen worktops & sinks
- Wet rooms
How we handle bath resealing in Wenallt
Baths, trays, basins and kitchen worktops all get resealed using mould-resistant silicone. A typical reseal takes a couple of hours. Whether it’s stained silicone and black mould in the sealant, we can generally put it right, whatever the material.
Peace of mind is built in: each job carries a one-year guarantee, and we explain what it covers before booking.
- Location
- Wenallt (CF14)
- County
- Cardiff
- Guarantee
- A year, on every repair
- Price
- Fixed and free, based on photos
- Call
- 0345 017 0787
- Updated
- 23 October 2026
The process
Arrival times are agreed in advance, so you’re not left guessing. On site, it takes a couple of hours in most cases. We leave the room clean and you’ll know when it can be used.
- We cut out all of the old sealant.
- We remove the residue and clean the joint.
- We treat mould and dry the joint thoroughly.
- The bath is filled with water, or weight put on the tray.
- We apply fresh mould-resistant silicone and tool a neat bead.
Before we arrive
- Mention any parking restrictions or tricky access
- Keep children and pets away from the room on the day
- Let us know which floor the room is on
Getting a price
The quickest way to a price is to send a couple of photos through our quote form or ring us. We will say straight away whether it can be repaired.
Advice
Landlord and trade work in Wenallt
Landlords, letting agents and housing providers in Wenallt use us as well as homeowners. Repairing between tenancies keeps void periods short, and it costs much less than replacing.
Builders use us to fix snagging damage before handover. We can visit several plots in one trip.
What affects the price in Wenallt
We charge the same across the UK, including Wenallt. What changes the price is:
- Access to the area
- Previous DIY repairs that have to come out
- How many areas need work
- The type of damage
Compared with replacing, a repair is generally a fraction of the price, because nothing has to be taken out, refitted or made good. Your fixed quote shows exactly what’s included.
Send pictures for a quote
You can usually get a fixed quote without us visiting. To make it quick:
- One picture of the whole bath or shower
- Any earlier repairs or coatings
- Daylight if possible, and no flash reflection
- A coin beside the damage so we can judge size
Getting a quote takes a couple of minutes: photograph the damage, then the entire bath or shower, add your postcode and send them to us. You will get a fixed quote, not an estimate.
Signs you need bath resealing in Wenallt
Most reseals are because of black mould. It grows into the sealant itself, so cleaning only removes the surface.
The most common problems we’re called about are:
- Black mould in the sealant
- Water getting behind the bath or tray
- Old sealant that looks dirty
- A messy previous reseal
What your quote should include
- How soon you can use it again
- Aftercare advice
- Who will actually do the work
- What prep work is covered
DIY repairs versus a professional job
Kits are cheap and easy to find, but the repairs we redo most frequently are DIY ones that have discoloured or lifted. Getting it right first time is usually cheaper.
What a professional repair adds is preparation, colour matching and finishing. We prepare the area properly, mix the colour on site and polish the finish to match, then guarantee it for a year.
Wenallt questions
What does bath resealing cost?
Because every job differs, we price from pictures. You know the full cost before anything is booked.
Is my repair covered?
All our work carries our one-year guarantee. Ask us what it covers when you get your quote.
Will the price change on the day?
We will show you and explain before doing anything extra. You won’t be charged for anything you haven’t agreed.
Is there any odour?
Expect a mild smell while we are working that clears as it cures.
Can I add another job to the visit?
Yes. Combining jobs on one visit brings the cost down. Send photos of everything you’d like done.
When can you do it?
We will give you dates with your quote. If it’s urgent, say so and we will do what we can.
Can tenants book a repair?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Can you repair something that’s been repaired before?
Most of the time. Let us know what was used before and we will plan for it.
About Wenallt
Wenallt is about 3 miles south of Caerphilly, in Cardiff. From the centre of Wenallt to the outlying streets, the service is the same: fixed prices, tidy work and a one-year guarantee. We cover 91 places across Cardiff, from the larger towns to small villages.
All of CF14 is within our area. Other places close to Wenallt include Pant-mawr (1 mile south), Rhydwaedlyd (1 mile south-east), Thornhill (1 mile north), Coryton (1 mile south-west) and Rhiwbina (1 mile south). We also work in nearby towns such as Cardiff (3 miles south-east), Ely (4 miles south), Castle (4 miles south-east), Adamsdown (5 miles south-east), Roath (4 miles south-east) and Splott (5 miles south-east).
Around Wenallt
Around Wenallt, we work in homes near Llanishen Fach Primary School, Llanishen High School and Fynnon Wen Public House. For rail, the closest station is Rhiwbina station, about 1.3 miles south. Further afield, we also cover the area around St Martins (1.7 miles north) and Welsh Museum of Health and Medicine (2.1 miles south-west). The countryside around Wenallt includes Roath Park Lake and Wenallt Hill.
What your bath or shower is made of matters
Shower trays
Trays are sealed with weight on them, so the joint is at its widest.
Baths
We fill the bath before sealing, so the joint is at its widest.
Places near Wenallt
Also in Wenallt
How to care for the repair
How the surface is treated afterwards matters. Here’s what we suggest:
- Clean the joints with a mild cleaner
- Store bottles on a shelf
- Use the extractor fan
- Air the room after use
Good ventilation is the best protection, and dry the joints after bathing.
Don’t wait until water gets behind the bath. Split or lifting sealant is a sign it’s time.
About our accreditations · Every repair comes with a one-year guarantee.
