Kent · England
Seaton Window Mastic
Our applicators work in Seaton on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Gaps left after new windows were fitted
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
Landlord and commercial work in Seaton
Landlords and letting agents in Seaton can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
How we handle window mastic in Seaton
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we’ll tell you. If you have rushed sealant from a window installation and a bead that doesn’t match the frame, we can help, on patio & French doors, aluminium frames and uPVC windows alike.
Around Seaton, 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.
All our work comes with our 12-month guarantee.
- Location
- Seaton (CT3)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

FAQs for Seaton
Can you do window mastic in Seaton?
Yes, Seaton is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear price.
Do you cover smaller places like Seaton?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned.
Can new sealant go over the old?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Where do you work from?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. We will tell you how long your job needs when we quote.
What sealant work can’t fix
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- A frame that has rotted at the joint
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A door that needs adjusting, rehanging or new seals
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Window sills
- Patio & French doors
- uPVC windows
- Aluminium frames
- Composite doors
- Timber windows & doors
Why it’s worth doing now in Seaton
A quick bead over the top of old mastic looks like an easy fix, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. Where a wall is exposed, as many are in small places like Seaton, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Leaving a failed joint normally makes the job bigger, not smaller. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Why book with us
- White, clear, grey or another colour, product permitting
- We are fully insured
- A sealant colour to suit the surroundings
- Sanitary silicone with an anti-fungal additive in wet areas
Nearby places to Seaton
More services for Seaton
What we do, step by step
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours for a handful of frames, longer for a whole house. In a small place like Seaton, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Clear the area around the work
- Mention any tricky access
- Mention if the joints have been sealed before
Getting a quote
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You will have a clear quote before work begins.
Read more
When to call us in Seaton
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
It’s worth asking for a quote if you see:
- Whistling draughts around closed windows
- Gaps left after new windows were fitted
- Old mastic that has gone black or come away
- Gaps between the frame and the inside reveal
Rented homes near Bekesbourne 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
- What happens if they find a problem under the old sealant
- Is VAT in the price?
- Which colour the sealant will be
- Which sealant they’ll use, and why
Surface by surface
Patio & French doors
Heavy door frames can move more than windows. A flexible sealant copes with that, where a rigid one would crack.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. We pay most attention there.
Quotes for window mastic in Seaton
Every job gets its own quote. This is what makes a difference:
- Which sealant suits the joint
- How many areas need sealing
- The number and length of the joints
- Whether old sealant or filler has to be cut out
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
What we need to know
To help us quote quickly, let us know:
- The problem you’ve noticed
- A few pictures by email, if you can
- If someone has resealed it before
- How we’d reach the joints
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Frames and glazing around Seaton
Historic houses like Goodnestone Park (about 3.2 miles south-east) are a reminder that the area around Seaton has older buildings as well as new. 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as Wickhambreaux Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Church of St Andrew, the joint between an old wall and a newer frame is generally the first place rain gets in.
Seaton is about 5 miles east of Canterbury, in Kent. We carry out window mastic for homeowners, landlords and businesses in Seaton, as part of our work across Kent. We cover 922 towns and villages across Kent. You can also see our page for Chelmsford, about 44 miles away.
Our applicators cover all of CT3 for window mastic. If you’re just outside Seaton, we cover Wickhambreaux (1 mile west), Ickham (1 mile south-west), Bramling (1 mile south), Littlebourne (1 mile south-west) and Bekesbourne (3 miles south-west). Further out, we also cover Canterbury (5 miles west), Margate (11 miles north-east), Dover (11 miles south-east), Folkestone (14 miles south), Ramsgate (10 miles east) and Broadstairs (12 miles north-east).
Around Seaton
In Seaton, that means homes and buildings near The Rose Inn, among other places. The nearest railway station is Bekesbourne station, about 2.8 miles south-west. A little further out are St Martins Hospital (3.6 miles west).
