Kent · England
Window & door mastic in Leigh, Kent
Problem with your window and door frames in Leigh? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Draughts coming in around windows and doors
- Draughty joints inside around the window
- White mastic on grey or black frames
How we handle window mastic in Leigh
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that cannot flex, so deep gaps get backing rod first. The sealant then grips the two sides it should. If you’re dealing with old mastic that has gone black or come away and damp patches on the reveal after heavy rain, we can help, on composite doors, patio & French doors and uPVC windows alike.
In a village or hamlet like Leigh, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Each job carries a 12-month guarantee.
- Place
- Leigh (TN11)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. In a small place like Leigh, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why us?
- Rated 4.9 stars on Google
- Approved under the ARBOMaster scheme
- Every job guaranteed for a year
- Experience in homes, commercial sites and hotels
Read what affects the cost and what customers say.
What affects the quote in Leigh
You’ll get a clear quote before we start. It’s based on:
- How many areas need sealing
- Which sealant suits the joint
- When we can work, for business premises
- The size of the job
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- Where the property is
- The rough size of the job
If you’re in Leigh and need window mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Towns and villages near Leigh
Other services in Leigh
How to look after the new joints
A little care helps the new joints last. We recommend:
- Use gentle cleaners on frames and sealant
- Repaint timber before it’s bare
- Keep paint off silicone joints
- Wipe condensation off the frames
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
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. If you notice one, it’s time to get the joint looked at.
What we do, step by step
We bring everything the job needs with us, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours for a few frames, or a day or more for a whole house. Somewhere as small as Leigh, access is often the only tricky part. 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.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Mention any leaks or damp you’ve noticed
- Keep children and pets away from the work area
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Read more
Your questions about window mastic in Leigh
Do you cover Leigh for window mastic?
Yes, Leigh is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we will give you a clear price.
Can you help a landlord with a rental near Leigh (Kent) station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Can you match the sealant to my frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we will match it as closely as we can.
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.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
What we can’t put right
We won’t take on work that will not last, so here’s what sealant cannot put right:
- Worn gaskets, brush seals or a door that has dropped
- Damp coming through the wall itself rather than the frame joint
- A failed sealed unit that has misted up
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Composite doors
- Patio & French doors
- uPVC windows
- Window sills
- Timber windows & doors
- Aluminium frames
Can I do it myself?
Some jobs are best left to a professional: 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 does not rule out a professional job. We remove it and do the joint properly.
Windows and doors in Leigh
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. With historic houses such as Penshurst Place (about 2 miles south-west) nearby, there’s older building stock in the area around Leigh as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Leigh (Kent) station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Schools such as Leigh Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Homes close to St Mary's Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Leigh is about 3 miles west of Tonbridge, in Kent. Anywhere in TN11, our applicators can take on window mastic. Our area takes in 922 places across Kent. We also work in Crawley, around 19 miles away.
We cover every part of the TN11 postcode area for window mastic and the streets around it. Whether your property is on High Street, Green View Avenue and The Green or a nearby road, our applicators can take on the job. Other places close to Leigh include Lower Haysden (1 mile east), Printstile (2 miles south), Bidborough (2 miles south-east), Tonbridge (3 miles east) and Stockland Green (3 miles south). Larger places within reach include Maidstone (14 miles east), Sevenoaks (6 miles north), Royal Tunbridge Wells (5 miles south-east), Swanley (14 miles north), Kings Hill (10 miles north-east) and Foley Park (15 miles north-east).
Around Leigh
Locally, jobs take us to homes and businesses close to Haysden Country Park, Fleur De Lis Cottages Fleur De Lis Public House and The Judd School. Leigh has its own railway station: Leigh (Kent) station. Nearby you’ll also find Tonbridge Cottage Hospital (2.7 miles south-east) and The Milne Museum (2.4 miles east). The countryside around Leigh includes Tudeley Woods RSPB reserve and Barden Lake.
Landlord and commercial work in Leigh
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.