Kent · England
Window & door mastic in Stocks Green, Kent
We cover Stocks Green for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Mastic that has split away from the wall
- Rain getting in at the frame or under the sill
- Sealant in the wrong colour for the frame
Window mastic for homes and businesses in Stocks Green
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. Typical jobs include cold air getting in at the frame edge and cracked internal joints between frame and plaster, on window sills, uPVC windows and patio & French doors.
Somewhere as small as Stocks Green, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Stocks Green (TN11)
- Region
- Kent
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes anything from an hour or two to a full day, depending on how many frames there are. Somewhere as small as Stocks Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Preparing for the visit
- Clear items away from the joints we are working on
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
Ask for a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.
Read more
Nearby places to Stocks Green
What else we do in Stocks Green
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- A failed sealed unit that has misted up
- Rotten timber, which needs a joiner first
- Broken hinges, locks or handles
If you’re not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Aluminium frames
- Patio & French doors
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
How the job changes by surface
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
What we’re called out for in Stocks Green
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
People generally contact us after spotting one of these:
- Leaking joints at the ends of sills
- Black, perished sealant on frames
- Untidy mastic left by window fitters
- Draughty joints inside around the window
Letting a property close to Hildenborough station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- Are they insured?
- When the joint can take water or movement
- Is VAT in the price?
- The length of the guarantee
Why it’s worth doing now in Stocks Green
Resealing frames is a short job: the visit takes a few hours for a few frames, or a day or more for a whole house. Leave it until water is coming in and you may need plastering and decorating as well. Where a wall is exposed, as many are in small places like Stocks Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why choose Mr Mastic in Stocks Green
- Full insurance on every job
- Arbo and Everbuild products
- 20+ years of sealant experience
- ARBOMaster approved applicator
See our cost guide and our reviews.
What affects the quote in Stocks Green
We do not publish a price list. The quote depends on:
- The number of rooms or windows
- Any mould that needs treating
- How easy the joints are to reach
- The product the joint needs
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we will explain what it covers.
Asking for a quote
You don’t need to know the technical terms. Just tell us:
- A few photos by email, if you can
- The address or postcode of the job
- Any previous sealing or DIY work
- Roughly how big the job is
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or drop us an email and describe the job.
What window mastic looks like in Stocks Green
Historic houses like Penshurst Place (about 3.2 miles south-west) are a reminder that the area around Stocks Green 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. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Hildenborough Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s. Homes close to Parish Church of St John include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Stocks Green is about 2 miles north-west of Tonbridge, in Kent. If you need window mastic in Stocks Green, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover Kent. Our area takes in 922 places across Kent. You can also see our page for Crawley, about 19 miles away.
Work in TN11 is quoted and booked the same way as anywhere else. If you’re just outside Stocks Green, we cover Hildenborough (1 mile north-east), Watt's Cross (1 mile north), Hilden Park (1 mile east), Coldharbour (2 miles north-east) and Underriver (3 miles north). Within a short drive, we also cover Maidstone (13 miles east), Sevenoaks (5 miles north), Royal Tunbridge Wells (5 miles south), Swanley (13 miles north), Kings Hill (9 miles north-east) and Foley Park (14 miles east).
What’s near Stocks Green
In Stocks Green, that means homes and buildings near The Judd School, The Flying Dutchman Public House and Haysden Country Park. Stocks Green has its own railway station: Hildenborough station. Nearby you’ll also find Tonbridge Cottage Hospital (2.9 miles south-east) and The Milne Museum (2 miles south-east). Not far away are Barden Lake and Tudeley Woods RSPB reserve.
Questions from Stocks Green
Do you cover Stocks Green for window mastic?
Yes. Our work covers London and the South East, and Stocks Green is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing, and we will send you a clear quote.
Will you come out to Stocks Green?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
What do you need from me for a quote?
A short description and the location, with photos by email if possible. We will ask anything else we need to know.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we are using and why.
Do you have insurance?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.