Kent · England
Window & door mastic in Teston, Kent
Window mastic across Teston and nearby, with old sealant always removed completely and a 12-month guarantee.
- Damp patches on the reveal after heavy rain
- Mastic that is falling out in pieces
- Gaps where the sill meets the wall
Window mastic for homes and businesses in Teston
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. We work on aluminium frames, window sills and uPVC windows, and people most often call us about cracked sealant at the sill ends and a bead that doesn’t match the frame.
Outdoor sealant needs dry, clean surfaces, so work on frames around Teston is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Each job carries a 12-month guarantee, large or small.
- Location
- Teston (ME18)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
For landlords and businesses
For anyone letting property in or around Teston, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Why act early in Teston
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. In a small place like Teston, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What you pay reflects the work, not a rough estimate. That is why we ask about the job first.
Why us?
- Rated 4.9 stars on Google
- Quality sealants from Arbo and Everbuild
- An ARBOMaster approved applicator
- White, clear, grey or coloured to suit, where the product allows
Take a look at what affects the cost and our reviews.
What we do, step by step
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a morning for a couple of windows and a door in most cases. In a small place like Teston, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
Ask for a quote
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Related advice
When to call us in Teston
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
Most people get in touch after spotting one of these:
- Cracked sealant at the sill ends
- Rushed sealant from a window installation
- Damp patches on the reveal after heavy rain
- Whistling draughts around closed windows
If you live in an older home near Church of St Peter and St Paul, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- How long to leave it before use
- Is VAT in the price?
- How the colour is chosen
- The length of the guarantee
Your questions about window mastic in Teston
Can you do window mastic in Teston?
Yes. We work across London and the South East, and Teston is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Can you help a landlord with a rental near Wateringbury station?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee, and we’re ARBOMaster approved applicators.
Can resealing stop a draught around my window?
Often, yes. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
Will it make a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you when we finish.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Window mastic in Teston: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Wateringbury station, renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as Wateringbury Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Teston is about 4 miles west of Maidstone, in Kent. Whether you are in the middle of Teston or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Teston is one of 922 towns and villages in Kent where we work for window mastic. You can also see our page for London, roughly 29 miles from Teston.
Postcode districts we cover here for window mastic: ME18. Local streets include The Street, Courtlands and Church Street. Neighbouring places we cover for window mastic include Red Hill (1 mile north-west), West Farleigh (1 mile south-east), Wateringbury (1 mile west), Barming Heath (1 mile east) and Hoppers Corner (1 mile east). Larger places within reach include Maidstone (4 miles east), Sittingbourne (14 miles north-east), Sevenoaks (11 miles west), Royal Tunbridge Wells (11 miles south-west), Gravesend (12 miles north) and Tonbridge (8 miles south-west).
Landmarks near Teston
We work in homes and buildings around The Wateringbury pub, The Malling School and Quarry Wood. The nearest railway station is Wateringbury station, about 0.9 miles south-west. A little further out are Oakwood Hospital (2.1 miles north-east) and Teapot Island (2.6 miles south-west).
Quotes for window mastic in Teston
The price is agreed before any work begins. It’s based on:
- The old material and how stubborn it is
- Any mould that needs treating
- The size of the job
- The type of sealant required
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or send us an email for an honest opinion and a quote.
Helping us quote
Photos help, but a description is a good start. Please mention:
- Photos by email, if that is easy
- The type of property
- Any previous sealing or DIY work
- The rough size of the job
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Check the mastic once a year
- Clear any debris from frame drain holes
- Clean frames with a soft cloth and soapy water
- Keep jet washers away from the mastic
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Leaks usually show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
What else we do in Teston
How the job changes by surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall and tooled smooth.
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. We’ll point out any rot we find, as a joiner will need to deal with it.