Kent · England
West Cross Window Mastic
Mastic around window and door frames, sills and patio doors in West Cross, with a one-year guarantee on every job. Ask us for a quote.
- Draughty joints inside around the window
- Gaps where the sill meets the wall
- Rushed sealant from a window installation
How we handle window mastic in West Cross
From a single sill to a whole house of windows, the work is priced before anything is done. Just ring 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached for window mastic in West Cross. We are often asked to deal with whistling draughts around closed windows and old mastic that has gone black or come away, on window sills, timber windows & doors and composite doors.
Mastic can only go onto a dry, clean joint, so window work in West Cross is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Every job is covered by a one-year guarantee.

- Where
- West Cross (TN17)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
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.
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
FAQs for West Cross
Is there a guarantee on window mastic in West Cross?
Every job comes with our 12-month guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Do you cover West Cross for window mastic?
Yes, West Cross is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or drop us an email.
I’m a tenant. Can you help?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Can you match the sealant to my frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status and we’re fully insured too.
Can you seal the gap between the frame and the plaster indoors?
Yes. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
For anyone letting property in or around West Cross, several properties can go on one quote. Send us the addresses and the work at each.
Also in West Cross
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
The process
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as West Cross, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
- On commercial sites, let us know about site rules
Getting a quote
If you are in West Cross and need window mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
What affects the cost of window mastic
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- The number of rooms or windows
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- If it’s domestic, commercial or a hotel
- The rough size of the job
- Photos by email, if that’s easy
- Any access issues, like height or stairs
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
Windows and doors in West Cross
Historic houses like Smallhythe Place (about 3.7 miles east) are a reminder that the area around West Cross 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. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Parish Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Rolvenden Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
West Cross is about 12 miles south-west of Ashford, in Kent. Jobs in West Cross get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. West Cross is one of 922 towns and villages in Kent we cover. Our Crawley page covers work nearby, about 35 miles away.
Our applicators cover all of the TN17 postcode area for window mastic and the streets around it. Nearby, we also carry out window mastic in Rolvenden (1 mile east), Rolvenden Layne (1 mile south-east), Strood (1 mile east), East End (2 miles north) and Parkgate (2 miles north-east). We also work in nearby towns such as Maidstone (15 miles north), Ashford (12 miles north-east), Paddock Wood (13 miles north-west), Tenterden (3 miles east), Bearsted (15 miles north) and Park Wood (13 miles north).
What’s near West Cross
Locally, jobs take us to homes and businesses close to Bull Hotel, among other places. Nearby you’ll also find Benenden Hospital (2.2 miles north) and Sissinghurst Castle (4.5 miles north).
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Damp coming through the wall itself rather than the frame joint
- Condensation trapped between the panes
- Faulty window hardware
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before booking.
Joints and surfaces we work on
- uPVC windows
- Patio & French doors
- Aluminium frames
- Composite doors
- Timber windows & doors
- Window sills
What happens if it’s left?
Failed mastic isn’t a reason to replace sound windows. Where the frames are sound, new mastic generally deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we will say so. Around West Cross, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or send us an email.
Why choose Mr Mastic in West Cross
- Over 20 years’ experience
- Any old sealant cut out fully, not covered over
- You choose the colour before work begins
- Arbo and Everbuild products
Take a look at how sealant jobs are priced or what customers say.
