Kent · England
Westwell Leacon Sand Mastic
Professional sand mastic in and around Westwell Leacon, with old sealant always removed completely and a 12-month guarantee.
- Crumbling sand mastic round a window
- Draughty sash windows at the surround
- Tired mastic found when preparing windows for paint
Sand mastic in Westwell Leacon, done properly
A silicone bead around a sash window can look out of place and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. If you have open joints round the window box and mastic worn away on windows facing the weather, we can put it right, on tenement windows, sash and case windows and brick reveals alike.
Around Westwell Leacon, 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.
All our work comes with a 12-month guarantee, wherever you are in Kent.
- Location
- Westwell Leacon (TN27)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What sand mastic looks like in Westwell Leacon
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Godinton House (about 2.7 miles south-east) are a reminder that the area around Westwell Leacon 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.
Homes close to Charing Methodist Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near Charing station change hands often, and any sash windows need sound mastic to keep draughts and rain out. For site and facilities teams at buildings such as The Hayesbrook School, larger buildings have plenty of frames, and the mastic around each one ages.
Westwell Leacon is about 5 miles north-west of Ashford, in Kent. If you need sand mastic in Westwell Leacon, please call 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Kent. Westwell Leacon is one of 922 places in Kent where we work for sand mastic. For nearby work, see our Chelmsford page (40 miles or so).
All of TN27 is within our area for sand mastic, from the main roads to the quietest streets. Nearby, we also carry out sand mastic in Ram Lane (1 mile south-east), Tutt Hill (1 mile south-east), Westwell (2 miles east), Hothfield (2 miles south) and Potters Corner (3 miles south-east). Within a short drive, we also cover Maidstone (13 miles west), Ashford (5 miles south-east), Canterbury (13 miles north-east), Sittingbourne (11 miles north), Whitstable (15 miles north-east) and Faversham (9 miles north-east).
What’s near Westwell Leacon
For rail, the closest station is Charing station, roughly 1.2 miles north-west of the centre. A little further out are Coldbridge Castle (4.8 miles west) and William Harvey Hospital (5.9 miles south-east).
What sealant work can’t fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Broken panes
- Timber that has rotted
- Whether work needs listed building consent
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Tenement windows
- Sash and case windows
- Stone surrounds
- Period & listed homes
- Timber door frames
- Brick reveals
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Surface by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Westwell Leacon: your questions answered
Do you work for landlords with property near Charing station?
Yes, we work for landlords and agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Is Westwell Leacon within the area you cover?
Yes, Westwell Leacon is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we will talk you through it.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
When will the new mastic be hard?
It skins over fairly quickly but takes longer to harden fully. We will explain what to expect before we leave.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
The process
At the end, we look at the finished work together. The work normally takes a few hours per window, depending on the condition of the joints, depending on the amount of work. For a village or hamlet like Westwell Leacon, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- For business premises, tell us about site rules or sign-in
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.
Advice
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How we quote for sand mastic
The price is agreed before any work begins. It’s based on:
- When we can work, for business premises
- How many areas need sealing
- How easy the joints are to reach
- The product the joint needs
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Helping us quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- The rough size of the job
- Where the property is
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
Towns and villages near Westwell Leacon
Also in Westwell Leacon
Aftercare tips
A little care helps the new joints last. We recommend:
- Keep modern sealant off the mastic
- Ask us before painting near the mastic
- Keep sills and gutters clear so water drains away
- Ask a joiner to look at soft timber first
Do not run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.