Kent · England
Window & door mastic in Ash, Kent
Our applicators work in Ash on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Hard, cracked sealant around windows
- Water coming in at the bottom corners of a door
- Gaps left after new windows were fitted
Window mastic in Ash
There are two joints on most windows. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. Typical jobs include cracked sealant at the sill ends and damp patches on the reveal after heavy rain, on window sills, timber windows & doors and uPVC windows.
In a smaller place like Ash, some walls face open ground and catch the full force of the weather. The mastic around frames on those walls tends to age faster.
Our work is backed for twelve months, in Ash and everywhere else we cover.
- Location
- Ash (CT3)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
Working on frames from a ladder with a sealant gun is not easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. In a smaller place like Ash, 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.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What you get with us
- Full insurance on every job
- An ARBOMaster approved applicator
- A choice of colours where the product allows
- A 12-month guarantee on all work
See our cost guide or customer reviews.
Questions from Ash
Do you cover smaller places like Ash?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do window mastic in Ash?
Yes. We work across London and the South East, and Ash is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Can I paint over the new sealant?
Silicone generally will not take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is generally more efficient.
Do you work for landlords and businesses?
Yes, often. We can quote for several properties at once.
Is the work guaranteed?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
How do I get a quote for window mastic in Ash?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We also work for property managers and facilities teams. Several sites can go on one quote, and we are fully insured for the work.
What affects the quote in Ash
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- The number of rooms or windows
- Whether there’s mould to deal with
- How easy the joints are to reach
- The type of sealant required
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first.
What we need to know
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- Any previous sealing or DIY work
- Photos by email, if that’s easy
- Where the property is
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job, and we will come back to you with a quote.
Should I try it myself first?
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 fails, we can still redo it.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Look round the frames every year or so
- Use gentle cleaners on frames and sealant
- Paint up to the joint, not over it
- Avoid harsh chemicals near the mastic
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
What happens on the day
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. It normally takes a few hours for a handful of frames, longer for a whole house. Parking around Ash is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- 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.
Getting ready for the visit
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
- Clear items away from the joints we are working on
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Advice
Window mastic in Ash: local notes
Historic houses like Goodnestone Park (about 3.3 miles south-west) are a reminder that the area around Ash 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. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Sandwich station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around Church of St Nicholas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Ash Cartwright and Kelsey Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Ash is about 7 miles north-west of Deal, in Kent. Ash gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Our area takes in 922 places across Kent, large and small. You can also see our page for Chelmsford, roughly 47 miles from Ash.
Jobs for window mastic in CT3 works the same way as everywhere else we cover. Window mastic is available to properties on The Street, Goodban Square and Chilton Place. We also cover the places around Ash: Guilton (1 mile west), Weddington (1 mile north-east), Durlock (1 mile west), Cop Street (1 mile north) and Coombe (1 mile south-east). Further out, we also cover Canterbury (9 miles west), Margate (8 miles north-east), Dover (10 miles south), Folkestone (14 miles south), Ramsgate (7 miles north-east) and Broadstairs (9 miles north-east).
Local landmarks in Ash
We work in homes and buildings around The Chequer Inn. Ash’s nearest station is Sandwich station, about 2.8 miles east. Nearby you’ll also find White Mill (2.1 miles east). Open spaces near Ash include Monk's Wall nature reserve.
Towns and villages near Ash
Also in Ash
Surface by surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
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.