Kent · England
Remedial sealant & repairs in Newtown, Kent
Failed sealant joints in Newtown need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Floor or wall movement joints that have failed
- Dark patches showing through the sealant
- Worktop sealant that has shrunk and split
Different surfaces, different methods
Movement & expansion joints
A movement joint must be able to stretch. We remove the failed sealant, fit backing and reseal.
Worktops & kitchens
Old kitchen sealant pulls back from the wall over time. It’s cut out, degreased and resealed colour-matched to the worktop.
Remedial sealant in Newtown, done properly
Water on the floor does not always mean failed silicone. Cracked trays, leaking wastes and faulty valves often look like a sealant problem. If that is what we find, we will tell you rather than reseal something that won’t fix it. If you’re dealing with movement joints that have split or pulled away and a shower that leaks however often it’s resealed, we can help, on botched or over-sealed joints, leaking tray & enclosure joints and expansion joints alike.
Homes around Newtown range from older cottages to more recent houses. Older homes can move a little with the seasons, which is hard on tired sealant and rigid grout.
Big or small, it’s backed by our one-year guarantee.
- Where
- Newtown (TN24, TN23)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Leave it or put it right?
Stripping out botched sealant adds time to a reseal, but not by much: the work takes a few hours, depending on how many layers have to come out. Compared with chasing the same leak every few months, it’s time well spent. Homes in smaller places like Newtown can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Newtown
- Trusted Arbo and Everbuild sealants
- Full insurance on every job
- A 12-month guarantee on all work
- Anti-fungal silicone where joints get wet
Take a look at what affects the cost or customer reviews.
Places near Newtown
Other services in Newtown
Newtown: your questions answered
Do you cover smaller places like Newtown?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work in hotels near Newtown?
Yes, hospitality work, including hotels, is part of what we do. Work can be planned room by room, and out-of-hours working can be arranged.
Is there any odour?
Sometimes, a little. It fades as the sealant cures.
Where do you work from?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can you fix a reseal that hasn’t worked?
Yes, usually. We check it’s the sealant and not the tray, valve or waste, then strip and reseal the joints.
What information do you need?
A short description and the location, with pictures by email if possible. We’ll ask anything else we need to know.
What happens if the problem is the tray or the plumbing?
Then we explain what we’ve found. You may need a plumber or bathroom fitter before any new sealant goes on.
Are you insured?
Yes. Mr Mastic is fully insured.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
How it works
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. The job usually takes a few hours for most joints, depending on how much old sealant has to come out, and we tell you how long to leave it before we go. Parking around Newtown is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First we find out how and where the joint has failed.
- All the old sealant comes out, including any layers underneath.
- Next, any mould is treated and the joint dried.
- We use the right backing and sealant for any joint that moves.
- We tool the joint and tell you about anything else that needs attention.
Before we arrive
- Tell us about any water getting in
- Clear the area around the work
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
To get a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
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Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Get the cause of a repeat leak found before resealing
- Check trays and worktops do not move
- Keep the room well ventilated
- Don’t point over movement joints
Ventilation keeps mould away from the new bead: run the fan during and after showers, or open a window.
Don’t keep resealing the same joint. Get the cause found first, otherwise the next attempt will fail too.
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
What we cannot put right
We will always be straight with you, so here’s what new sealant won’t do:
- Older mastics that may need an asbestos check before removal
- A cracked shower tray or bath (that needs repair or replacing)
- A leaking trap, valve or supply pipe
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Joints and surfaces we work on
- Mouldy bath & shower sealant
- Botched or over-sealed joints
- Leaking tray & enclosure joints
- Shrunken worktop sealant
- Failed movement joints
- Expansion joints
Remedial sealant around Newtown
There are hotels and other places to stay in and around Newtown. Hotel bathrooms are part of our work as well as homes, and can be done room by room. Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.
If you let a flat or house near Ashford International station, botched sealant from a previous quick fix is easier to strip out between tenants. If you look after a building such as East Stour Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes. If you live in an older home near Christ Church, older homes can move a little, which is hard on rigid grout and tired sealant.
Newtown is about 1 mile south-east of Ashford, in Kent. If you need remedial sealant in Newtown, please call 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Kent, Newtown included. Our area takes in 922 places across Kent. We also work in Chelmsford, around 45 miles away.
Postcode districts we cover here for remedial sealant: TN24 and TN23. Local streets include Bath Road, Mead Road and Royds Road, and we cover them all. Neighbouring places we cover for remedial sealant include South Willesborough (1 mile north-east), Park Farm (1 mile south-west), Willesborough (1 mile north-east), Ashford (1 mile north-west) and Finberry (1 mile south-east). Further out, we also cover Canterbury (14 miles north-east), Folkestone (13 miles east), Faversham (13 miles north), Hythe (10 miles south-east), Davington (13 miles north) and Preston (12 miles north).
Landmarks near Newtown
Locally, jobs take us to homes and businesses close to The North School, The Albion Inn and Ashford Green Corridors and the streets around them. For rail, the closest station is Ashford International station, roughly 0.9 miles north. Nearby you’ll also find Ashford Designer Outlet (0.5 miles north) and William Harvey Hospital (1.7 miles north-east). The countryside around Newtown includes Hatch Park.