Kent · England
Window Mastic in Colliers Green
Mastic around window and door frames, sills and patio doors for Colliers Green, backed by a 12-month guarantee. Call for a quick quote.
- Gaps between the frame and the inside reveal
- Whistling draughts around closed windows
- Mastic that has split away from the wall
Why deal with it now?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Older cottages and farmhouses around Colliers Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
Why us?
- Quality sealants from Arbo and Everbuild
- Approved under the ARBOMaster scheme
- We are fully insured
- Any old sealant cut out fully, not covered over
Read what affects the cost or our reviews.
Window mastic for homes and businesses in Colliers Green
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just ring 0345 464 0079 or drop us an email and tell us how many frames there are and how they’re reached. We work on aluminium frames, uPVC windows and timber windows & doors, and people most often call us about cold air getting in at the frame edge and draughty joints inside around the window.
Around Colliers 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.
Every job is covered by our one-year guarantee, wherever you are in Kent.
- Where
- Colliers Green (TN17)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Places near Colliers Green
More services for Colliers Green
Surface by surface
Aluminium frames
Aluminium needs a sealant that bonds to coated metal and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall and tooled smooth.
Colliers Green homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Scotney Castle (about 4.9 miles south-west) are a reminder that the area around Colliers Green has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Schools such as Colliers Green Church of England Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Historic houses such as Scotney Castle, about 4.9 miles south-west, show how far back building around Colliers Green goes. For landlords with property near Marden station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Colliers Green is about 7 miles south-east of Paddock Wood, in Kent. Across the TN17 area, we can carry out window mastic at your property. Colliers Green is one of 922 places in Kent where we work for window mastic. We also work in Crawley, around 30 miles away.
Postcode districts we cover here for window mastic: TN17. Nearby, we also carry out window mastic in Flishinghurst (1 mile south), Horden (1 mile north), Wilsley Green (2 miles south-east), Wilsley Pound (2 miles south-east) and Cranbrook Common (2 miles east). Larger places within reach include Maidstone (10 miles north), Ashford (15 miles east), Royal Tunbridge Wells (11 miles west), Tonbridge (12 miles north-west), Kings Hill (11 miles north-west) and Foley Park (11 miles north).
Near you in Colliers Green
Around Colliers Green, our work takes us to homes and buildings near High Weald Academy and The Gill, among other places. The closest station to Colliers Green is Marden station, roughly 3.9 miles north of the centre. Nearby you will also find Sissinghurst Castle (3 miles east) and Benenden Hospital (5.1 miles south-east).
Quotes for window mastic in Colliers Green
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- Mould in or behind the old joints
- The number and length of the joints
- Whether the work is at height
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
There’s no need for technical detail. Just tell us:
- If someone has resealed it before
- Roughly how big the job is
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or drop us an email.
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. It generally takes a few hours for a handful of frames, longer for a whole house. Somewhere as small as Colliers Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
How to prepare
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
If you’re in Colliers Green and need window mastic, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Related advice
FAQs for Colliers Green
I let a flat near Marden station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is Colliers Green within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can I paint over the new sealant?
Not usually, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Can you do several jobs on one visit?
Yes, we can. More than one area can be quoted together.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you when we finish.
Will the old sealant be removed?
Yes, always, and completely. New sealant won’t bond properly to old, so the joint is cleaned back first.
Can you match the sealant to my frames?
Yes. White, brown, anthracite grey, black and clear sealants are all available.
Where are you based?
We are based in Crawley, and we cover South East England, London and all of Scotland.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Clean frames with a soft cloth and soapy water
- Do not aim a pressure washer at the joints
- Walk round the house once a year and look at the joints
- Make sure the drainage slots are not blocked
Silicone can’t generally be painted, so mention any painting plans before work begins. We can use a paintable sealant where that matters.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
What sealant work cannot fix
We won’t take on work that won’t last, so these are the limits:
- Damp problems in the wall away from the window
- A sash or casement that will not close properly
- A frame that has rotted at the joint
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
Surfaces we seal
- Timber windows & doors
- Composite doors
- Patio & French doors
- uPVC windows
- Aluminium frames
- Window sills