East Sussex · England
Window & door mastic in Selmeston, East Sussex
Professional window mastic in and around Selmeston, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps where the sill meets the wall
- White mastic on grey or black frames
- Gaps left after new windows were fitted
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Repaint timber before it’s bare
- Keep paint off silicone joints
- Check the mastic once a year
- Wash the frames with mild soapy water
Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
About our window mastic in Selmeston
Whether it’s one leaking patio door or every frame on the house, you will get a clear quote before any work starts. Just phone 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached. We work on window sills, composite doors and timber windows & doors, and common reasons people get in touch are whistling draughts around closed windows and cracked sealant at the sill ends.
Homes in small places like Selmeston often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
A one-year guarantee comes as standard.
- Where
- Selmeston (BN26)
- Region
- East Sussex
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that without cracking.
Composite doors
A composite door generally sits in a plastic outer frame, and the joint around it is sealed like a window. We match the colour to the frame.
What window mastic looks like in Selmeston
With historic houses such as Charleston Farmhouse (about 1.2 miles west) nearby, there’s older building stock in the area around Selmeston as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as The Parish Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Selmeston is about 5 miles north of Seaford, in East Sussex. Across the BN26 area, we can carry out window mastic at your property. 289 places in East Sussex are on our list, large and small. For nearby work, see our Brighton page (12 miles or so).
Work in BN26 works the same way as everywhere else we cover. Streets in the area include The Street and Lewes Road. Other places close to Selmeston include Alciston (1 mile south), Berwick (1 mile east), Ripe (2 miles north), Winton (2 miles south) and Wickstreet (2 miles north-east). Larger places within reach include Eastbourne (7 miles south-east), Bexhill-on-Sea (14 miles east), Seaford (5 miles south), Lewes (6 miles west), Hailsham (5 miles east) and Crowborough (14 miles north).
What’s near Selmeston
In Selmeston, that means homes and buildings near The Barley Mow pub. Selmeston’s nearest station is Berwick (Sussex) station, roughly 1 mile east of the centre. Well-known places in the area include Drusillas Museum (1.8 miles south-east) and Chailey Heritage Marine Hospital (5.3 miles south-west). For a walk, there’s Firle Beacon.
Landlord and commercial work in Selmeston
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How the visit works
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes most of a day for a typical house, less for a few frames. For a village or hamlet like Selmeston, 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 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.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Advice
Why deal with it now?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. Around Selmeston, 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 each job is priced on what it involves. Call for a quick quote.
Why book with us
- More than 20 years in sealant work
- 12-month guarantee on every job
- Domestic, commercial and hotel work
- Anti-fungal sanitary silicone in wet areas
Read our cost guide or what customers say.
Also in Selmeston
Selmeston questions
Can you do window mastic in Selmeston?
Yes. Our work covers London and the South East, and Selmeston is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.
Do you work for landlords with property near Berwick (Sussex) station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we are using and why.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
How long will my window job take?
The work takes a morning for a couple of windows and a door. Access and how stubborn the old mastic is affect the time most.
Where do you work from?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you when we finish.
What we’re called out for in Selmeston
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, and a gap filled solid cannot flex. Backing rod sets the right depth.
The problems people normally mention when they call are:
- Rushed sealant from a window installation
- Mastic that’s falling out in pieces
- Rain getting in at the frame or under the sill
- Cracked internal joints between frame and plaster
If you let a flat or house near Berwick (Sussex) station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Comparing quotes
- Whether VAT is included
- How long the guarantee is
- Is the old sealant removed completely?
- How the joint is cleaned and prepared
Quotes for window mastic in Selmeston
You will get a clear quote before work begins. It takes into account:
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- Any mould that needs treating
- The number of rooms or windows
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
What to tell us for a quote
What to tell us when you ask for a quote:
- The problem you’ve noticed
- Where the job is, and your postcode
- Roughly how big the job is
- Any access issues, like height or stairs
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before any work starts.