Kent · England
Mowshurst Window Mastic
Window and door frames in Mowshurst need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Damp patches on the reveal after heavy rain
- Mastic that is falling out in pieces
- Draughts coming in around windows and doors
Window mastic in Mowshurst
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. Typical jobs include draughts coming in around windows and doors and old mastic that has gone black or come away, across composite doors, window sills and uPVC windows.
Outdoor sealant needs dry, clean surfaces, so work on frames around Mowshurst is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Whatever the size of the job, it’s backed by our one-year guarantee.

- Location
- Mowshurst (TN8)
- Region
- Kent
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Mowshurst
Do you cover Mowshurst for window mastic?
Yes. Our work covers London and the South East, and Mowshurst is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
Do you cover smaller places like Mowshurst?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you have insurance?
Yes. Full insurance covers our work.
What do you need from me for a quote?
Tell us what needs doing and where, with pictures by email if possible. We will ask anything else we need to know.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we are using and why.
Is the work guaranteed?
Yes. Each job is covered for 12 months.
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Worn gaskets, brush seals or a door that has dropped
- Damp coming through the wall itself rather than the frame joint
- Faulty window hardware
If you are not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Window sills
- Patio & French doors
- Composite doors
Surface by surface
Composite doors
Composite doors are normally hung in an uPVC-type frame, and the joint around it is sealed like a window. We match the colour to the frame.
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.
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The process
At the end, we look at the finished work together and tell you how long to leave it. The visit itself usually takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. Somewhere like Mowshurst needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Let us know about parking restrictions
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
How to get a quote
If you’re in Mowshurst and need window mastic, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Related advice
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
What happens if it’s left?
Choosing the product is half the job. Interior caulk and bathroom silicone are not made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. Around Mowshurst, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why us?
- Neat joints and a tidy finish
- A sealant colour to suit the surroundings
- Any old sealant cut out fully, not covered over
- Fully insured
Take a look at how sealant jobs are priced or our reviews.
Quotes for window mastic in Mowshurst
Call for a quick quote. What matters most is:
- Mould in or behind the old joints
- The number and length of the joints
- The product the joint needs
- The old material and how stubborn it is
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- The problem you’ve noticed
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
Mowshurst homes and the weather
Historic houses like Hever Castle (about 2.3 miles south-east) are a reminder that the area around Mowshurst has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
Rented homes near Edenbridge station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Homes close to Church of St Peter and St Paul include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. For site and facilities teams at buildings such as Edenbridge Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Mowshurst is about 7 miles north-east of East Grinstead, in Kent. Mowshurst gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Mowshurst is one of 922 places in Kent where we work. You can also see our page for Crawley, about 13 miles away.
Jobs for window mastic in TN8 is quoted and booked the same way as anywhere else. Close by, we work in Marlpit Hill (1 mile west), Edenbridge (1 mile south-west), Pootings (1 mile north), Four Elms (1 mile north-east) and Troy Town (1 mile west). We also work in nearby towns such as Sevenoaks (7 miles north-east), Royal Tunbridge Wells (10 miles south-east), Tonbridge (9 miles east), Swanley (14 miles north), Kings Hill (15 miles east) and Paddock Wood (14 miles east).
Near you in Mowshurst
Typical jobs here are in homes near The Swan pub, among other places. Mowshurst’s nearest station is Edenbridge station, about 0.6 miles west of the centre. A little further out are Haxted Watermill Museum (2.3 miles south-west) and Hever Castle (2.3 miles south-east).
