Kent · England
Sand mastic for sash & case windows in Wilsley Green, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Wilsley Green, backed by a 12-month guarantee. Call for a quick quote.
- Gaps between timber frames and stone or brick
- Modern sealant on a period surround
- Old cement repairs round a window that have failed
Sand mastic for homes and businesses in Wilsley Green
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. If you have patchy fillers round a sash window and mastic dropping out of the joint, we can help, on timber door frames, period & listed homes and tenement windows alike.
Around Wilsley Green, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Every job comes with our 12-month guarantee, wherever you are in Kent.
- Place
- Wilsley Green (TN17)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Windows and doors in Wilsley Green
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of St Dunstan, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Managing a site like Cranbrook Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Wilsley Green is about 11 miles south of Maidstone, in Kent. Whether you’re in the middle of Wilsley Green or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Wilsley Green is one of 922 towns and villages in Kent we cover. You can also see our page for Crawley, roughly 32 miles from Wilsley Green.
We cover every part of TN17 for sand mastic. That includes homes and businesses on Quaker Drive, Angley Walk and Swifts View. Neighbouring places we cover for sand mastic include Wilsley Pound (1 mile north-east), Sissinghurst (1 mile north-east), Flishinghurst (1 mile west), Cranbrook Common (2 miles north-east) and Colliers Green (2 miles north-west). Within a short drive, we also cover Maidstone (11 miles north), Ashford (14 miles east), Royal Tunbridge Wells (12 miles west), Tonbridge (13 miles north-west), Kings Hill (13 miles north-west) and Foley Park (12 miles north).
Local landmarks in Wilsley Green
In Wilsley Green, that means homes and buildings near Crane Valley, White Horse pub and Cranbrook School. For rail, the closest station is Staplehurst station, roughly 4.8 miles north. Well-known places in the area include Sissinghurst Castle (2.1 miles north-east) and Sissinghurst Castle (2.1 miles north-east).
Quotes for sand mastic in Wilsley Green
The quote reflects the job in front of us. We take into account:
- Whether there’s mould to deal with
- Whether the work is at height
- The product the joint needs
- How many rooms, windows or areas are involved
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Helping us quote
You don’t need to know the technical terms. Just tell us:
- The address or postcode of the job
- Whether it has been sealed before
- What’s wrong with the joints now
- Roughly how big the job is
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Places near Wilsley Green
Other services in Wilsley Green
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. Somewhere as small as Wilsley Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
Getting a quote
Every job is quoted individually. Simply ring 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
Read more
What the job involves on each surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Common problems we fix in Wilsley Green
Timber swells and shrinks with the weather. The movement cracks the mastic little by little.
The problems people usually mention when they call are:
- Crumbling sand mastic round a window
- Draughty sash windows at the surround
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
For landlords with property near Staplehurst station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before you book
- How the colour is chosen
- Are they insured?
- Which sealant they’ll use, and why
- What happens if the job turns out different
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What happens if it’s left?
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in, and renewing the mastic closes them. In a small place like Wilsley Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- We are fully insured
- ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
See our cost guide or customer reviews.
Landlords, agents and businesses in Wilsley Green
For anyone letting property in or around Wilsley Green, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Questions from Wilsley Green
Will you come out to Wilsley Green?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Wilsley Green for sand mastic?
Yes, Wilsley Green is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Can tenants book the work?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Can old silicone round a sash window be swapped for sand mastic?
Usually, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
Will there be a smell?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.