East Sussex · England
Window & door mastic in Westham, East Sussex
Window mastic for Westham and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Hard, cracked sealant around windows
- Untidy mastic left by window fitters
- Water coming in at the bottom corners of a door
What happens if it’s left?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Around Westham, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why book with us
- Experience in homes, commercial sites and hotels
- Quality sealants from Arbo and Everbuild
- Anti-fungal sanitary silicone in wet areas
- We’re fully insured
See what affects the cost and customer reviews.
Window mastic for homes and businesses in Westham
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. We are often asked to deal with cracked sealant at the sill ends and untidy mastic left by window fitters, on aluminium frames, timber windows & doors and uPVC windows.
Mastic can only go onto a dry, clean joint, so window work in Westham is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
You get a 12-month guarantee, the same in Westham as everywhere else we work.

- Place
- Westham (BN24)
- Wider area
- East Sussex
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for a handful of frames, longer for a whole house and we leave things clean and tidy. For a village or hamlet like Westham, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- 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.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Keep children and pets away from the work area
- Clear the area around the work
- On commercial sites, let us know about site rules
How to get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or drop us an email.
Advice
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again.
If you are set on DIY, put the effort into 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.
Your questions about window mastic in Westham
Does the coastal weather in Westham affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do you work for landlords with property near Pevensey & Westham station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Where do you work from?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. Then call 0345 464 0079 or drop us an email.
Is the new sealant paintable?
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.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
How long before the joint can be used?
It depends on the product. We tell you how long to leave it before we go.
Places near Westham
Also in Westham
What window mastic looks like in Westham
Westham is within about 2 miles of 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. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Managing a site like Pevensey and Westham CofE Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Pevensey & Westham station, renewing tired window mastic between tenants heads off draught and damp complaints.
Westham is about 3 miles north-east of Eastbourne, in East Sussex. Our applicators cover window mastic for householders, landlords and businesses in Westham, as part of our work across East Sussex. Westham is one of 289 places in East Sussex where we work for window mastic. You can also see our page for Brighton, about 20 miles away.
Postcode districts we cover here for window mastic: BN24. That includes homes and businesses on High Street, Linkway and Rattle Road and the roads around them. Other places close to Westham include Jenkins' Green (1 mile north-west), Pevensey (1 mile east), Langney (1 mile south), Pevensey Bay (2 miles east) and Wartling (3 miles north-east). Within a short drive, we also cover Eastbourne (3 miles south-west), Hastings (11 miles east), Bexhill-on-Sea (7 miles east), Seaford (10 miles west), Lewes (14 miles west) and Hailsham (4 miles north-west).
Local landmarks in Westham
Locally, jobs take us to homes and businesses close to Bishop Bell School and The Heron pub, among other places. Westham has its own railway station: Pevensey & Westham station. Other landmarks nearby include Pevensey Castle (0.6 miles east) and Eastbourne District General Hospital (3.1 miles south-west). Open spaces near Westham include Combe Hill.
Signs you need window mastic in Westham
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
People normally contact us after spotting something like this:
- Whistling draughts around closed windows
- Hard, cracked sealant around windows
- Cracked sealant at the sill ends
- Draughty joints inside around the window
For an older house near a landmark such as St Mary's Church, 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
- What the quote includes, VAT included or not
- Is the old sealant removed completely?
- What preparation is included
- How hidden problems are handled
Landlords, agents and businesses in Westham
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
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.
Keeping the joints in good condition
So the new joints stay in good condition:
- Paint up to the joint, not over it
- Keep timber frames painted
- Walk round the house once a year and look at the joints
- Clean frames with a soft cloth and soapy water
Try not to touch the new joint while it cures, for as long as we advise. Keep jet washers away from the frames.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
What affects the quote in Westham
We quote each job individually. This is what makes a difference:
- Access and height
- How many areas need sealing
- How much there is to do
- Any mould that needs treating
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
Asking for a quote
What to tell us when you ask for a quote:
- Roughly how big the job is
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
- Whether it has been sealed before
We quote each job on its own. Just ring 0345 464 0079 or drop us an email with the details.
