Kent · England
Window & door mastic in Donkey Street, Kent
Window mastic in Donkey Street from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Rain getting in at the frame or under the sill
- Cracked internal joints between frame and plaster
- Old mastic that has gone black or come away
How we handle window mastic in Donkey Street
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on uPVC windows, aluminium frames and composite doors, and common reasons people get in touch are mastic that has split away from the wall and leaking joints at the ends of sills.
Somewhere as small as Donkey Street, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Where
- Donkey Street (TN29)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

Work for landlords, hotels and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
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 job takes a few hours for a few frames, or a day or more for a whole house in most cases. In a small place like Donkey Street, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Clear items away from the joints we’re working on
- Tell us about any previous sealing or DIY attempts
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you’re ready, ring 0345 464 0079 or send us an email.
Related advice
What happens if it’s left?
Resealing frames is a short job: it takes a few hours for a few frames, or a day or more for a whole house. Leave it until water is coming in and you may need plastering and decorating as well. Around Donkey Street, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
What you get with us
- Quality sealants from Arbo and Everbuild
- Old sealant always removed completely
- Over 20 years’ experience
- White, clear, grey or another colour, product permitting
See our cost guide or what customers say.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
When something else is needed
Before you book, it’s worth knowing the limits:
- A frame that has rotted at the joint
- A failed sealed unit that has misted up
- Damp coming through the wall itself rather than the frame joint
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- uPVC windows
- Window sills
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- Composite doors
What window mastic looks like in Donkey Street
Donkey Street is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. With historic houses such as Westenhanger Castle (about 3.2 miles north) nearby, there’s older building stock in the area around Donkey Street as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Westenhanger station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Donkey Street is about 4 miles south-west of Hythe, in Kent. We carry out window mastic for homes and businesses in Donkey Street, as part of our work across Kent. Donkey Street is one of 922 places in Kent where we work. You can also see our page for Crawley, roughly 52 miles from Donkey Street.
Here we cover the TN29 postcode area for window mastic. If you are just outside Donkey Street, we cover Dymchurch (1 mile south), West Hythe (2 miles north-east), Lympne (2 miles north-east), Palmarsh (2 miles north-east) and Berwick (2 miles north-east). We also work in nearby towns such as Ashford (9 miles north-west), Dover (14 miles north-east), Folkestone (7 miles east), Hythe (4 miles north-east), Tower Hamlets (14 miles north-east) and Hawkinge (8 miles north-east).
What’s near Donkey Street
Typical jobs here are in homes near The Shepherd And Crook Public House, among other places. Donkey Street’s nearest station is Westenhanger station, roughly 3.4 miles north-east. Well-known places in the area include Lympne Castle (1.7 miles north-east) and Hythe Museum (3.6 miles east). Open spaces near Donkey Street include Tolsford Hill.
What affects the quote in Donkey Street
For a quick quote, just ask. The main things that affect it are:
- How much old sealant there is and how hard it is to remove
- Access and height
- Any working-time requirements on site
- How many rooms, windows or areas are involved
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- Whether it’s a home or a business
- Whether it has been sealed before
- Any access issues, like height or stairs
- Pictures of the joints, sent by email
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
When to call us in Donkey Street
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. A sealant that cannot keep up eventually tears.
Look out for any of the following:
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
- Draughts coming in around windows and doors
- Damp patches on the reveal after heavy rain
In the older streets around Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
- What the quote includes, VAT included or not
- How the colour is chosen
Also near Donkey Street
Also in Donkey Street
Common questions in Donkey Street
I let a flat near Westenhanger station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Is Donkey Street within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Will resealing my frames help with draughts?
Yes, where the draught is at the frame edge. We check where the draught is before we start.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or drop us an email.
Do you guarantee window mastic?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.
Can you reach windows above the ground floor?
Generally, yes. Access is planned before we start, so mention the height and anything in the way.
Are you insured?
Yes. We are fully insured for every job we do.
