Kent · England
Fosten Green Window Mastic
Problem with your window and door frames in Fosten Green? We cut out the old, prepare the joints and apply the right sealant.
- A bead that doesn’t match the frame
- Whistling draughts around closed windows
- Draughty joints inside around the window
Window mastic in Fosten Green, done properly
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you are dealing with black, perished sealant on frames and rain getting in at the frame or under the sill, we can help, whatever the surface.
Somewhere as small as Fosten Green, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Fosten Green (TN27)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Fosten Green homes and the weather
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Headcorn station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Fosten Green is about 11 miles west of Ashford, in Kent. If you need window mastic in Fosten Green, please call 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Kent, Fosten Green included. We cover 922 towns and villages across Kent, from the larger towns to small villages. We also work in Crawley, about 35 miles from Fosten Green.
Postcode districts we cover here for window mastic: TN27. Close by, we work in Clapper Hill (1 mile east), East End (1 mile south), Parkgate (2 miles south-east), London Beach (3 miles east) and Strood (3 miles south-east). Within a short drive, we also cover Maidstone (12 miles north), Ashford (11 miles east), Kings Hill (15 miles north-west), Foley Park (13 miles north), Paddock Wood (11 miles north-west) and Tenterden (4 miles south-east).
Local landmarks in Fosten Green
For rail, the closest station is Headcorn station, about 4.6 miles north. Nearby you will also find Mervyn Quinlan Museum (0.9 miles south) and Sissinghurst Castle (2.1 miles north-west).
When to call us in Fosten Green
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
Most people get in touch when they notice one of these:
- Hard, cracked sealant around windows
- Leaking joints at the ends of sills
- Water coming in at the bottom corners of a door
- Mastic that’s falling out in pieces
For an older house near a landmark such as St Margaret's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- How the joint is cleaned and prepared
- What insurance they hold
- Whether they seal over old material or remove it
- Whether you can choose the colour
Looking after it afterwards
To keep the joints looking good and working properly:
- Look round the frames every year or so
- Do not use solvent cleaners on the joint
- Keep jet washers away from the mastic
- Ventilate rooms so frames don’t stay wet inside
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Places near Fosten Green
Also in Fosten Green
What affects the cost of window mastic
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- The type of sealant required
- Whether the work is at height
- How many areas need sealing
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
- Whether it has been sealed before
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear price.
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Fosten Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
- Let us know about stairs, lifts or work at height
Get a quote
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Advice
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
Fosten Green questions
Is Fosten Green in your area for window mastic?
Yes. Our work covers London and the South East, and Fosten Green is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
I let a flat near Headcorn station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
Where do you work from?
We work from Crawley. Our applicators cover Fosten Green.
Will new mastic stop draughts?
In many cases. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
Can you get sealant to suit coloured frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we will match it as closely as we can.
When something else is needed
It helps to know what we can’t do:
- A failed sealed unit that has misted up
- Penetrating damp from a failed cavity tray or render
- A door that needs adjusting, rehanging or new seals
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer before you book.
What we seal
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Aluminium frames
- Composite doors
- Window sills
Surface by surface
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We will tell you if that is what we find.