East Sussex · England
Window & door mastic in Udimore, East Sussex
Window mastic in Udimore from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Hard, cracked sealant around windows
- Old mastic that has gone black or come away
- Damp patches on the reveal after heavy rain
About our window mastic in Udimore
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. Common call-outs are for rain getting in at the frame or under the sill and mastic that has split away from the wall, across window sills, timber windows & doors and uPVC windows.
Around Udimore, 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.
Every job comes with our one-year guarantee.

- Place
- Udimore (TN31)
- Region
- East Sussex
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When it isn’t the sealant
It helps to know what we can’t do:
- Draughts through the window seals rather than the frame
- Penetrating damp from a failed cavity tray or render
- A failed sealed unit that has misted up
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Timber windows & doors
- Composite doors
- Patio & French doors
- Aluminium frames
- uPVC windows
- Window sills
Signs you need window mastic in Udimore
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, and over the years it loses its give, cracks and comes away.
Most people get in touch when they notice something like this:
- Old mastic that has gone black or come away
- A bead that does not match the frame
- Cracked sealant at the sill ends
- Cracked or shrunken mastic around the frame
Rented homes near Winchelsea station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- How long to leave it before use
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- Whether they seal over old material or remove it
Questions from Udimore
Can you do window mastic in Udimore?
Yes. Our work covers London and the South East, and Udimore is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Will you come out to Udimore?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you.
Does the work come with a guarantee?
Yes. Every job comes with our 12-month guarantee, and we’re fully insured.
How long will my window job take?
Allow most of a day for a typical house, less for a few frames. Access and the amount of old mastic make the biggest difference.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
What happens on the day
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It usually takes anything from an hour or two to a full day, depending on how many frames there are. For a village or hamlet like Udimore, 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.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the 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
- Mention any parking rules near the property
- Mention any tricky access
- Keep children and pets away from the work area
How to get a quote
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or email us and describe the job.
Related advice
Frames and glazing around Udimore
With historic houses such as Lamb House (about 3.4 miles east) nearby, there’s older building stock in the area around Udimore as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
In the older streets around The Parish Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Udimore is about 6 miles north-east of Hastings, in East Sussex. Whether you are in the middle of Udimore or further out, window mastic is available for homes and businesses alike. Udimore is one of 289 towns and villages in East Sussex we cover for window mastic. Our Brighton page covers work nearby, about 35 miles away.
Work in TN31 works the same way as everywhere else we cover. Streets in the area include Udimore Road and Float Lane, and we cover them all. Neighbouring places we cover for window mastic include Cock Marling (1 mile east), Broadland Row (1 mile west), Broad Street (1 mile south), Icklesham (2 miles south) and Beckley Furnace (2 miles north-west). Larger places within reach include Hastings (6 miles south-west), Bexhill-on-Sea (10 miles south-west), St Leonards (7 miles south-west), Hastings Old Town (6 miles south-west), Belmont (6 miles south-west) and Hollington (7 miles south-west).
Around Udimore
The closest station to Udimore is Winchelsea station, about 2.1 miles east. A little further out are Winchelsea Court Hall Museum (2.5 miles south-east) and Conquest Hospital (5.4 miles south-west). The countryside around Udimore includes Flatropers Wood.
Keeping the joints in good condition
So the new joints stay in good condition:
- Clean frames with a soft cloth and soapy water
- Walk round the house once a year and look at the joints
- Do not aim a pressure washer at the joints
- Repaint timber before it’s bare
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What happens if it’s left?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. Around Udimore, 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 normally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why book with us
- Approved under the ARBOMaster scheme
- 180+ five-star Google reviews
- Neat joints and a tidy finish
- More than 20 years in sealant work
What else we do in Udimore
How we quote for window mastic
We do not publish a price list, because jobs vary so much. The quote depends on:
- Working hours on commercial sites
- The product the joint needs
- The number and length of the joints
- Whether there’s mould to deal with
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
What to tell us for a quote
When you call or email, it’s useful to know:
- Whether it has been sealed before
- The problem you’ve noticed
- Photos by email, if that is easy
- Any access issues, like height or stairs
There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or drop us an email.
