Kent · England
Marlpit Hill Window Mastic
Window mastic across Marlpit Hill and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Old mastic that has gone black or come away
- Sealant in the wrong colour for the frame
- Cold air getting in at the frame edge
Window mastic in Marlpit Hill, done properly
The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. We work on uPVC windows, aluminium frames and patio & French doors, and people most often call us about mastic that’s falling out in pieces and gaps left after new windows were fitted.
Outdoor sealant needs dry, clean surfaces, so work on frames around Marlpit Hill is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Your job is guaranteed for a year, as with all our work.

- Location
- Marlpit Hill (TN8)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for window mastic
There’s no set price list. What we look at:
- The type of sealant required
- Whether the work is at height
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
Helping us quote
There’s no need for technical detail. Just tell us:
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- Any access issues, like height or stairs
If you are in Marlpit Hill and need window mastic, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Aftercare tips
After the cure time, these simple habits help:
- Look round the frames every year or so
- Keep paint and stain on wooden frames in good order
- Keep drainage slots and sill grooves clear
- Use gentle cleaners on frames and sealant
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
For landlords and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
For anyone letting property in or around Marlpit Hill, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Frames and glazing around Marlpit Hill
Historic houses like Chartwell (about 2.5 miles north) are a reminder that the area around Marlpit Hill 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. 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.
Rented homes near Edenbridge station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. Schools such as Edenbridge Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Marlpit Hill is about 7 miles north-east of East Grinstead, in Kent. Our applicators cover window mastic for homeowners, landlords and businesses in Marlpit Hill, as part of our work across Kent. Across Kent, we cover 922 places, Marlpit Hill among them. We also work in Crawley, about 13 miles from Marlpit Hill.
Our applicators cover all of the TN8 postcode area for window mastic and the streets around it. You’ll find streets such as Pit Lane, Main Road and Meadow Lane, all of which we cover. If you’re just outside Marlpit Hill, we cover Mowshurst (1 mile east), Edenbridge (1 mile south), Troy Town (1 mile west), Pootings (1 mile north-east) and Four Elms (2 miles east). Larger places within reach include Sevenoaks (7 miles north-east), Royal Tunbridge Wells (10 miles south-east), Tonbridge (9 miles east), Swanley (14 miles north), Kings Hill (15 miles east) and Paddock Wood (14 miles east).
What’s near Marlpit Hill
In Marlpit Hill, that means homes and buildings near The Swan pub, among other places. Marlpit Hill has its own railway station: Edenbridge station. Well-known places in the area include Haxted Watermill Museum (1.9 miles south-west) and Hever Castle (2.8 miles south-east).
Places near Marlpit Hill
Also in Marlpit Hill
Why act early in Marlpit Hill
Failed mastic isn’t a reason to replace sound windows. If the frames and glass are in good order, resealing the joints is often all that’s needed. Problems with the glass or gaskets are for a window company, and we will say so. Where a wall is exposed, as many are in small places like Marlpit Hill, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not guesswork. That is why we ask a few questions first and agree the price before starting.
Why choose Mr Mastic in Marlpit Hill
- Experience in homes, commercial sites and hotels
- Arbo and Everbuild products
- 20+ years of sealant experience
- Full insurance on every job
See our cost guide and our reviews.
Questions from Marlpit Hill
Can you help a landlord with a rental near Edenbridge station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Can you do window mastic in Marlpit Hill?
Yes. Our work covers London and the South East, and Marlpit Hill is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear quote.
Can resealing stop a draught around my window?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we’ll tell you.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us, and we are fully insured.
How long before the joint can be used?
Cure times vary by product. Before we leave, we’ll tell you the cure time.
What do you need from me for a quote?
Tell us what needs doing and where, with photos by email if possible. If we need more, we’ll ask.
Do you guarantee window mastic?
Yes, with our one-year guarantee. A yearly look at the joints helps them last.
Is the new sealant paintable?
Not generally, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Signs you need window mastic in Marlpit Hill
Mastic ages in the weather. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
The most common problems we see are:
- Cracked internal joints between frame and plaster
- Cracked or shrunken mastic around the frame
- Mastic that is falling out in pieces
- Rain getting in at the frame or under the sill
For an older house near a landmark such as Church of St Peter and St Paul, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- What happens if the job turns out different
- Are they insured?
- Whether you can choose the colour
- How the joint is cleaned and prepared
What the job involves on each surface
Window sills
The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.
What happens on the day
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a few frames, or a day or more for a whole house. Somewhere like Marlpit Hill needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Let us know if you’ve seen damp or leaks
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
Every job is quoted individually. Just call 0345 464 0079 or email us with the details, and pictures are welcome.
