Kent · England
Wincheap Window Mastic
Mastic around window and door frames, sills and patio doors in Wincheap, with a one-year guarantee on every job. Call for a quick quote.
- Gaps between the frame and the inside reveal
- Mastic that’s falling out in pieces
- Draughts coming in around windows and doors
What happens if it’s left?
Draughts and leaks don’t always mean new windows. If the frames and glass are in good order, resealing the joints is often all that’s needed. If we find failed glass units or worn seals, we’ll tell you. In a smaller place like Wincheap, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
Why Wincheap clients choose us
- ARBOMaster approved applicator
- Fully insured
- Neat joints and a tidy finish
- A choice of colours where the product allows
Take a look at what affects the cost and customer reviews.
Window mastic in Wincheap, done properly
The new joint doesn’t have to be white. We can seal in white, brown, anthracite grey, black or clear, so the line suits the frame instead of standing out. Common call-outs are for gaps between the frame and the inside reveal and leaking joints at the ends of sills, across timber windows & doors, aluminium frames and uPVC windows.
In smaller places like Wincheap, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
We stand behind the work with a one-year guarantee, so you’re covered after we have gone.
- Location
- Wincheap (CT1, CT2)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes anything from an hour or two to a full day, depending on how many frames there are. A visit to Wincheap is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First, we go round the frames with you and agree the list.
- 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.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
How to get a quote
If you are in Wincheap 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 will get a clear quote before any work starts.
Advice
Wincheap questions
Can you do window mastic in Wincheap?
Yes, Wincheap is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear quote.
I let a flat near Canterbury East station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Can new sealant go over the old?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Frames and glazing around Wincheap
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Canterbury East station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For an older house near a landmark such as Church of St Mildred, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Wincheap is about 1 mile south-west of Canterbury, in Kent. For window mastic in and around Wincheap, please ring 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Kent, Wincheap included. Our area takes in 922 places across Kent, from the larger towns to small villages. We also work in Chelmsford, about 41 miles from Wincheap.
Here we cover the CT1 and CT2 postcode area for window mastic. Streets in the area include Ada Road, Cow Lane and Back Lane, and we cover them all. You will find Wincheap on the A2, so it’s easy for us to get to. Close by, we work in Canterbury (1 mile north-east), Thanington (1 mile south-west), Harbledown (1 mile north-west), Stuppington (1 mile south) and Hales Place (2 miles north). Within a short drive, we also cover Ashford (13 miles south-west), Margate (15 miles north-east), Dover (14 miles south-east), Sittingbourne (15 miles west), Folkestone (14 miles south) and Ramsgate (15 miles east).
Local landmarks in Wincheap
Typical jobs here are in homes near Canterbury School of Architecture, St Thomas of Canterbury Church and Duke's Head Public House. Other local landmarks include The Canterbury Academy (0.5 miles north-west) and Whitehall Meadows (within half a mile north-west). There’s a railway station in Wincheap itself: Canterbury East station. Other landmarks nearby include Canterbury Castle (less than half a mile north-east) and Rupert Bear Museum (under half a mile north-east). The countryside around Wincheap includes Blean Woods RSPB Reserve.
How the job changes by surface
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain can’t run into the wall.
Composite doors
An exposed front door gets wind-driven rain. Those corners get the most care.
Looking after it afterwards
To keep the joints looking good and working properly:
- Wipe condensation off the frames
- Look round the frames every year or so
- Do not paint over the silicone
- Make sure the drainage slots are not blocked
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.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
Towns and villages near Wincheap
What else we do in Wincheap
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Honest limits
To be straight with you, some problems need a different trade:
- Soft or decayed wood in the frame
- Broken hinges, locks or handles
- Damp coming through the wall itself rather than the frame joint
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Window sills
- Patio & French doors
- Composite doors
What we’re called out for in Wincheap
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.
The most common problems we see are:
- Sealant in the wrong colour for the frame
- Gaps left after new windows were fitted
- Whistling draughts around closed windows
- Gaps between the frame and the inside reveal
Managing a site like Wincheap Foundation Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Before booking anyone
- Who does the work, and how experienced they are
- Whether they’re fully insured
- What the cure time is
- Is VAT in the price?