Kent · England
Window Mastic in Staple
Mastic around window and door frames, sills and patio doors in Staple, with a one-year guarantee on every job. Ask us for a quote.
- Damp patches on the reveal after heavy rain
- Untidy mastic left by window fitters
- Gaps where the sill meets the wall
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
How we handle window mastic in Staple
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you are dealing with water coming in at the bottom corners of a door and cracked or shrunken mastic around the frame, we can put it right, on window sills, patio & French doors and aluminium frames alike.
Somewhere as small as Staple, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Staple (CT3)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
New sealant can’t fix everything, and we’d rather say so up front. Sealant will not put right:
- A sash or casement that will not close properly
- Damp coming through the wall itself rather than the frame joint
- Soft or decayed wood in the frame
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before you book.
What we seal
- Composite doors
- Patio & French doors
- uPVC windows
- Timber windows & doors
- Aluminium frames
- Window sills
What window mastic looks like in Staple
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. Historic houses like Goodnestone Park (about 1.9 miles south-west) are a reminder that the area around Staple has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Adisham station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Staple is about 7 miles north-west of Deal, in Kent. Anywhere in CT3, our applicators can take on window mastic. Our area takes in 922 places across Kent, large and small. Our Chelmsford page covers work nearby.
All of CT3 is within our area for window mastic, from the main roads to the quietest streets. Whether your property is on The Street, Rowan Close and School Lane or a nearby road, our applicators can take on the job. We also cover Barnsole (1 mile south-east), Twitham (1 mile west), Durlock (1 mile north), Flemings (1 mile east) and Guilton (1 mile north-east). Further out, we also cover Canterbury (8 miles west), Margate (10 miles north-east), Dover (9 miles south), Folkestone (13 miles south), Ramsgate (8 miles north-east) and Broadstairs (10 miles north-east).
Local landmarks in Staple
In Staple, that means homes and buildings near The Three Tuns pub and the streets around them. The closest station to Staple is Adisham station, roughly 2.9 miles south-west of the centre. Other landmarks nearby include White Mill (3.3 miles east). The countryside around Staple includes Monk's Wall nature reserve.
What affects the cost of window mastic
Your quote is based on your job. We look at:
- Whether old sealant or filler has to be cut out
- The size of the job
- Any mould that needs treating
- The product the joint needs
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
- Where the job is, and your postcode
- The rough size of the job
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job.
Signs you need window mastic in Staple
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
Any of these means the joints need attention:
- Old mastic that has gone black or come away
- Cracked internal joints between frame and plaster
- Rain getting in at the frame or under the sill
- Hard, cracked sealant around windows
If you live in an older home near Church of St James, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- Whether they’re fully insured
- What guarantee comes with the work
- What happens if they find a problem under the old sealant
- When the joint can take water or movement
Landlord and commercial work in Staple
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Surface by surface
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall.
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.
Also in Staple
What we do, step by step
The work is kept neat and contained to the area we’re working on, so you can carry on as normal. The job generally takes a morning for a couple of windows and a door. For a village or hamlet like Staple, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
How to prepare
- Move anything stored near the joints
- 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
Getting a quote
If you’re in Staple and need window mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Related advice
Staple: your questions answered
Will you come out to Staple?
Yes, Staple is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do window mastic in Staple?
Yes. We work across London and the South East, and Staple is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Can you seal the gap between the frame and the plaster indoors?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.
How long will my window job take?
The work takes a morning for a couple of windows and a door. Access and the amount of old mastic make the biggest difference.
Where are you based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Can landlords and businesses book you?
Yes. We work for householders, landlords, letting agents, businesses and hotels.