East Sussex · England
East Hoathly Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in East Hoathly and across East Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Black, perished sealant on frames
- Untidy mastic left by window fitters
- Mastic that has split away from the wall
Your questions about window mastic in East Hoathly
Is East Hoathly within the area you cover?
Yes. East Hoathly is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover East Hoathly for window mastic?
Yes, East Hoathly is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Can I paint over the new sealant?
Not if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
Do you guarantee window mastic?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
Is there any odour?
There can be a smell while the sealant cures. Opening a window helps.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
How do I get a quote for window mastic in East Hoathly?
Size, access and the old material all affect the cost. Call for a quick quote.
About our window mastic in East Hoathly
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. If you have draughty joints inside around the window and rain getting in at the frame or under the sill, we can help, on composite doors, timber windows & doors and window sills alike.
Around East Hoathly, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Each job carries a 12-month guarantee, large or small.

- Location
- East Hoathly (BN8)
- Wider area
- East Sussex
- Guarantee
- 12 months on all our work
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Clear any debris from frame drain holes
- Clean frames with a soft cloth and soapy water
- Do not use solvent cleaners on the joint
- Keep paint and stain on wooden frames in good order
Keep sill grooves and drainage slots clear, so rain drains out rather than building up at the sealant.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
Why deal with it now?
Not every sealant suits a window. Interior caulk and bathroom silicone aren’t made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In a small place like East Hoathly, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
Why us?
- We never seal over old sealant
- You choose the colour before work begins
- Neat joints and a tidy finish
- Over 20 years’ experience
Quotes for window mastic in East Hoathly
You will get a clear quote before we start. It takes into account:
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- Which sealant suits the joint
- Any working-time requirements on site
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Asking for a quote
To make quoting easier, let us know:
- The rough size of the job
- Whether it has been sealed before
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
Want a quote for window mastic? Please call 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
What we do, step by step
The work is kept neat and contained to the area we are working on, so you can carry on as normal. The job generally takes a few hours for a few frames, or a day or more for a whole house, and we tell you how long to leave it before we go. In a small place like East Hoathly, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
- Keep children and pets away from the work area
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 pictures by email if you can.
Related advice
Frames and glazing around East Hoathly
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Horselunges Manor (about 4.6 miles south-east) are a reminder that the area around East Hoathly has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Rented homes near Uckfield station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as East Hoathly CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s.
East Hoathly is about 4 miles south-east of Uckfield, in East Sussex. From the centre of East Hoathly to the outskirts, we cover window mastic for every kind of property. East Hoathly is one of 289 towns and villages in East Sussex where we work. You can also see our page for Brighton, roughly 14 miles from East Hoathly.
All of BN8 is covered for window mastic, from the main roads to the quietest streets. We cover properties on High Street, London Road and Rectory Close. We also cover the places around East Hoathly: Halland (1 mile west), Whitesmith (1 mile south), Chiddingly (2 miles south-east), Shortgate (2 miles west) and Blackboys (3 miles north). Further out, we also cover Eastbourne (11 miles south-east), Bexhill-on-Sea (14 miles east), Seaford (11 miles south), Lewes (8 miles south-west), Hailsham (6 miles south-east) and Crowborough (9 miles north).
Local landmarks in East Hoathly
Locally, jobs take us to homes and businesses close to Foresters Arms, among other places. For rail, the closest station is Uckfield station, roughly 4.2 miles north-west of the centre. Other landmarks nearby include Sussex Farm Museum (3.5 miles east) and Tickerage Castle (3.2 miles north). The countryside around East Hoathly includes Selwyns Wood.
Honest limits
To be straight with you, there are a few things sealant will not fix:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Soft or decayed wood in the frame
- Damp problems in the wall away from the window
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Surfaces we seal
- Timber windows & doors
- Composite doors
- Aluminium frames
- Patio & French doors
- Window sills
- uPVC windows
Nearby places to East Hoathly
Other services in East Hoathly
What we are called out for in East Hoathly
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.
Most people get in touch when they notice something like this:
- Damp patches on the reveal after heavy rain
- Gaps where the sill meets the wall
- A bead that does not match the frame
- Mastic that is falling out in pieces
In the older streets around The Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Comparing quotes
- What product goes in the joint
- When the joint can take water or movement
- How the surfaces are prepared before sealing
- What guarantee comes with the work
How the job changes by surface
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. The threshold and the bottom corners take the most water, so we pay close attention there.
