County Durham · England
Bath Resealing in Castle Dene
Bath resealing in Castle Dene without the cost of replacing. Send us photos for a fixed price, then book a visit.
- Sealant that is split or lifting
- Black mould in the sealant
- Stained silicone

About our bath resealing in Castle Dene
A proper reseal starts with removing every trace of the old silicone. New silicone won’t bond to old, which is why so many DIY reseals peel. Common call-outs are for unsealed corners and leaks at the edges, across baths, basins & vanity units and wet rooms.
We stand behind the work with a one-year guarantee, so you are covered after the visit.
- Where
- Castle Dene (DH3)
- County
- County Durham
- Warranty
- A year, on every repair
- Quotes
- Fixed and free, based on photos
- Phone
- 0345 017 0787
- Page updated
- 23 October 2026

About Castle Dene
Castle Dene is about 2 miles east of Chester-le-Street, in County Durham. We travel to customers in Castle Dene and nearby villages, so you don’t need to take anything anywhere. Castle Dene is one of 329 places in County Durham we cover. Our nearest city page is Newcastle upon Tyne, about 11 miles away.
Here we cover the DH3 postcode area. We also travel to Lumley Thicks (1 mile east), Great Lumley (1 mile south), Woodstone Village (1 mile east), Bournmoor (1 mile north-east) and New Lambton (1 mile east). Larger places within reach include Durham (5 miles south), Consett (12 miles west), Bishop Auckland (15 miles south), Spennymoor (10 miles south), Seaham (8 miles east) and Peterlee (10 miles south-east).
Local landmarks in Castle Dene
Typical jobs here are in homes near Lumley Infant and Nursery School, Park View School and Christ Church Lumley and the streets around them. The nearest railway station is Chester-Le-Street station, about 1.5 miles west of the centre. Nearby you’ll also find Ankers House Museum (1.4 miles north-west) and Galleries Shopping Centre (3.7 miles north). Not far away are Warden Law and WWT Washington.
- Local facilities include Chester-le-Street (1.6 miles north-west)
Common questions in Castle Dene
How long does silicone take to cure?
Normally about a day later. We confirm before we leave.
Can you reseal over the old silicone?
No, we never seal over old silicone. The old sealant is cut out and the joint cleaned and dried.
I’m a tenant. Can you help?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Is it OK to have pets in the house?
On the day, the room should be kept clear of pets and children.
Do you cover Castle Dene?
Yes. We work across the UK and travel to Castle Dene and the rest of County Durham. Send pictures and we will quote, or call 0345 017 0787.
How long does resealing take?
Generally a couple of hours, plus curing time.
How do I stop mould in sealant?
Mostly moisture and poor ventilation. Mould-resistant silicone and good ventilation help.
Do the materials smell?
It depends on the job, but frequently a little. Open windows and an extractor fan help, and it soon fades.
Honest limits
Before you book, it’s worth knowing the limits too:
- Loose tiles, which need refixing first
- Rotten walls or floors behind the bath
- Very wide gaps that need a trim
Not sure? Send pictures and we will give you a straight answer before booking.
Materials we repair
- Wet rooms
- Basins & vanity units
- Shower trays & enclosures
- Kitchen worktops & sinks
- Baths
The process
Arrival times are agreed in advance, so you know when to expect us. Once we’re there, the work takes a couple of hours in most cases. We leave the room clean and you’ll know when it can be used.
- First we strip out every bit of the old mastic.
- We clean the joint and treat any mould.
- We dry the joint thoroughly.
- Baths are filled with water first, so the joint is at its widest.
- We apply new mould-resistant silicone and tool it to a neat finish, including around the taps.
Getting ready for the visit
- Let us know if it has been repaired before
- Clear the area around the damage
- Keep pets and children out of the room while we work
Ask for a price
A quote takes minutes to ask for: photograph the damage, then the entire bath or shower, add your postcode and send them to us. You’ll get a fixed price, not an estimate.
Advice
Also near Castle Dene
Other services in Castle Dene
Why reseal now?
Compared with repairing water damage, resealing is cheap. It’s quick, tidy and protects your home. No two jobs are quite the same, so each one is priced on its own. What’s damaged, how badly and how easy it is to reach all make a difference, and combining jobs on one visit brings the cost down.
Why Castle Dene customers choose us
- A year’s guarantee on all work
- Dust sheets down, tidy finish
- One visit for most repairs
- Honest advice, even when it means no job
Take a look at our prices page.
How we price bath resealing
Prices are worked out job by job. The main factors are:
- How hard the colour is to match
- Access to the area
- How much damage there is
- What the surface is made of
The price depends on how much damage there is and what kind, the material and how many jobs we combine into one visit. We give a fixed price from your pictures, so you know the cost before booking.
How to get a fixed price
Photographing the damage takes a minute, and it saves a visit. Please include:
- A coin or ruler next to the damage for scale
- A picture taken from further back
- A close-up of the damage, in focus
- What it’s made of, if you know
Pricing is simple: take a close-up of the damage and a photo from further back, send them over with your postcode, and we’ll reply with a fixed quote. There is no charge for the quote and you are under no obligation.
Different materials, different repairs
Baths
We fill the bath before sealing, so the joint is at its widest.
Shower trays
Trays are sealed with weight on them, so the joint is at its widest.
Keeping it looking good
Nothing complicated is needed:
- Keep bottles off the joints
- Give the seal a regular clean
- Let steam out after showers
- Reseal when black spots will not clean off
Use the extractor fan, wipe the joints dry after use, and give them a regular clean with a mild cleaner to slow mould growth.
Black mould in sealant is not just unsightly; it shows moisture is getting in. Resealing early keeps water out of the walls and floor.
Can I fix it myself?
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 typically 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.
Signs you need bath resealing in Castle Dene
In time, even good sealant discolours. Steam, soap and movement all take their toll.
Keep an eye out for these signs:
- Water getting behind the bath or tray
- Gaps in the seal
- Unsealed corners
- An untidy old seal
Before you book anyone
- How the colour is matched
- Is the price fixed, and does it include VAT?
- What happens if the damage is worse than the pictures show
- Who will actually do the work
About our accreditations · Every repair comes with a one-year guarantee.

