Kent · England
Window & door mastic in Marsh Green, Kent
Problem with your window and door frames in Marsh Green? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Cracked or shrunken mastic around the frame
- Gaps between the frame and the inside reveal
- Draughts coming in around windows and doors
About our window mastic in Marsh Green
There are two joints on most windows. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. Typical jobs include gaps left after new windows were fitted and cracked internal joints between frame and plaster, on aluminium frames, patio & French doors and composite doors.
Around Marsh Green, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
All our work is covered by a one-year guarantee, wherever you are in Kent.

- Location
- Marsh Green (TN8)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Marsh Green homes and the weather
Historic houses like Hever Castle (about 2.6 miles east) are a reminder that the area around Marsh Green has older buildings as well as new. 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.
If you let a flat or house near Edenbridge Town station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Marsh Green is about 5 miles north-east of East Grinstead, in Kent. For window mastic in and around Marsh Green, please ring 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Kent, Marsh Green included. Across Kent, we cover 922 places, and Marsh Green is one of them. Our Crawley page covers work nearby (12 miles or so).
Postcode districts we cover here for window mastic: TN8. If you need window mastic at a property on Marsh Green Road and Greybury Lane or a nearby road, our applicators can take on the job. Neighbouring places we cover for window mastic include Stick Hill (2 miles east), Dormansland (2 miles south-west), Hammerwood (3 miles south), Cowden (3 miles south-east) and Lingfield (3 miles west). Within a short drive, we also cover Sevenoaks (9 miles north-east), Royal Tunbridge Wells (10 miles east), Tonbridge (10 miles east), Paddock Wood (14 miles east), Southborough (9 miles east) and Broadwater Down (9 miles south-east).
Around Marsh Green
Typical jobs here are in homes near Wheatsheaf Inn. Marsh Green’s nearest station is Edenbridge Town station, roughly 1.6 miles north of the centre. Nearby you will also find Haxted Watermill Museum (1.5 miles north-west) and Queen Victoria Hospital (3.8 miles south-west).
Also near Marsh Green
More services for Marsh Green
What happens if it’s left?
Working on frames from a ladder with a sealant gun is not 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 Marsh Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why Marsh Green clients choose us
- Approved under the ARBOMaster scheme
- Anti-fungal silicone where joints get wet
- Domestic, commercial and hotel work
- White, clear, grey or another colour, product permitting
Read our cost guide or our reviews.
What affects the cost of window mastic
We quote each job individually. This is what makes a difference:
- The old material and how stubborn it is
- Any working-time requirements on site
- Whether the work is at height
- How many rooms, windows or areas are involved
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
- How we’d reach the joints
Want a quote for window mastic? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Signs you need window mastic in Marsh Green
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
Common reasons people contact us are:
- Rushed sealant from a window installation
- A bead that does not match the frame
- Draughty joints inside around the window
- Hard, cracked sealant around windows
If you live in an older home near Marsh Green Mission Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Comparing quotes
- How the joint is cleaned and prepared
- Whether they seal over old material or remove it
- Is VAT in the price?
- Whether you can choose the colour
Landlords, agents and businesses in Marsh Green
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Landlords and agents in Marsh Green can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Clear any debris from frame drain holes
- Don’t use solvent cleaners on the joint
- Clean frames with a soft cloth and soapy water
- Keep paint and stain on wooden frames in good order
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
Signs to watch for: 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.
Marsh Green questions
Is Marsh Green in your area for window mastic?
Yes, Marsh Green is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear price.
Do you cover smaller places like Marsh Green?
Yes, Marsh Green is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Will the old sealant be removed?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take most of a day for a typical house, less for a few frames. In a small place like Marsh Green, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- 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.
- Every joint is checked before we leave.
Before we arrive
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
Getting a quote
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Related advice
What the job involves on each surface
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Aluminium frames
Coated aluminium needs a compatible sealant and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
