Kent · England
Langley Heath Window Mastic
Our applicators work in Langley Heath on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Water coming in at the bottom corners of a door
- Draughty joints inside around the window
- Mastic that has split away from the wall
About our window mastic in Langley Heath
There are two joints on most windows. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. If you are dealing with mastic that’s falling out in pieces and rain getting in at the frame or under the sill, we can help, on window sills, uPVC windows and timber windows & doors alike.
Somewhere as small as Langley Heath, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Each job carries a 12-month guarantee.

- Location
- Langley Heath (ME17)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Questions from Langley Heath
Do you cover smaller places like Langley Heath?
Yes. Langley Heath is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Hollingbourne station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Can you do several jobs on one visit?
Yes. More than one area can go on one quote.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Do you have sealant for grey or black windows?
Yes, in most cases. Mention the frame colour when you ask for a quote and we’ll match it as closely as we can.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Is the work guaranteed?
Yes. All our work carries a 12-month guarantee, and we’re ARBOMaster approved applicators.
Places near Langley Heath
More services for Langley Heath
Keeping the joints in good condition
Looking after new joints is easy:
- Avoid blasting the frames with a pressure washer
- Look round the frames every year or so
- Do not use solvent cleaners on the joint
- Paint up to the joint, not over it
Keep the new mastic undisturbed while it cures, following the cure time we give you. Keep jet washers away from the frames.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
What the job involves on each surface
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Composite doors
Front doors take the weather head on, and the top and bottom corners tend to fail first. Those corners get the most care.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
Frames and glazing around Langley Heath
With historic houses such as Stoneacre (about 1.4 miles north-west) nearby, there’s older building stock in the area around Langley Heath as well as newer homes. Where a home is older, 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.
Letting a property close to Hollingbourne station? Then renewing tired window mastic between tenants heads off draught and damp complaints. Managing a site like Senacre Technology College? Then larger buildings have plenty of frames, and the mastic around each one ages. Homes close to Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Langley Heath is about 4 miles south-east of Maidstone, in Kent. Our applicators cover window mastic for homes and businesses in Langley Heath and nearby, as part of our work across Kent. Langley Heath is one of 922 places in Kent where we work for window mastic. There’s also a page for London, roughly 35 miles from Langley Heath.
All of ME17 is within our area for window mastic. Local streets include Skinner's Way, Shepherds Way and Heath Road, all of which we cover. Close by, we work in Langley (1 mile west), Five Wents (1 mile south-west), Warmlake (1 mile south), Chart Sutton (1 mile south-west) and Otham (1 mile north-west). We also work in nearby towns such as Maidstone (4 miles north-west), Ashford (13 miles south-east), Sittingbourne (10 miles north-east), Tonbridge (14 miles west), Faversham (14 miles north-east) and Kings Hill (9 miles west).
Landmarks near Langley Heath
Locally, jobs take us to homes and businesses close to The Potting Shed pub, among other places. The nearest railway station is Hollingbourne station, about 2.5 miles north-east of the centre. Other landmarks nearby include The Dog Collar Museum (1.8 miles north-east) and The Mall Maidstone (4 miles north-west). For a walk, there’s Detling Hill.
What affects the quote in Langley Heath
You will get a clear quote before any work starts. It’s based on:
- When we can work, for business premises
- How many areas need sealing
- How easy the joints are to reach
- Mould in or behind the old joints
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- Pictures of the joints, sent by email
- If someone has resealed it before
- What’s wrong with the joints now
- The type of property
We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or email us and describe the job, and photos are welcome.
What we do, step by step
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. The job generally takes a few hours for a handful of frames, longer for a whole house, and we explain the cure time before we leave. In a small place like Langley Heath, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Clear the area around the work
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job.
Advice
Why act early in Langley Heath
Failed mastic isn’t a reason to replace sound windows. Where the frames are sound, new mastic usually deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we will say so. In a small place like Langley Heath, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- Experience in homes, commercial sites and hotels
- Every job guaranteed for a year
- Rated 4.9 stars on Google
- White, clear, grey or coloured to suit, where the product allows
See what affects the cost and what customers say.
What sealant work can’t fix
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Rotten timber, which needs a joiner first
- A sash or casement that won’t close properly
- Damp coming through the wall itself rather than the frame joint
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- uPVC windows
- Composite doors
- Patio & French doors
- Window sills
- Aluminium frames
- Timber windows & doors
