Kent · England
Sand mastic for sash & case windows in Boughton Green, Kent
Sand mastic in Boughton Green from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Weathered mastic on the most exposed windows
- Cracked mastic round a front door frame
- Crumbling sand mastic round a window
When to call us in Boughton Green
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
Look out for any of the following:
- Draughts and rain around sash boxes
- Mastic that needs renewing before redecorating
- Old sand mastic that has cracked, crumbled or fallen out
- Weathered mastic on the most exposed windows
If you live in an older home near Coxheath Congregational Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Comparing quotes
- Whether the sealant suits the joint
- What the quote includes, VAT included or not
- What insurance they hold
- What preparation is included
Sand mastic in Boughton Green
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. We work on brick reveals, timber door frames and sash and case windows, and common reasons people get in touch are window mastic to renew ahead of painting and mastic worn away on windows facing the weather.
Around Boughton 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.
All our work is covered by our 12-month guarantee.
- Place
- Boughton Green (ME17, ME15)
- Region
- Kent
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Windows and doors in Boughton Green
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. Historic houses like Stoneacre (about 2.5 miles north-east) are a reminder that the area around Boughton Green has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Managing a site like Boughton Monchelsea Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. If you let a flat or house near East Farleigh station, any sash windows need sound mastic to keep draughts and rain out.
Boughton Green is about 2 miles south of Maidstone, in Kent. We carry out sand mastic for householders, landlords and businesses in Boughton Green and the surrounding area. 922 places in Kent are on our list. You can also see our page for Crawley, about 32 miles away.
Jobs for sand mastic in ME17 and ME15 is quoted and booked the same way as anywhere else. Local streets include Heath Road, Green Lane and Jolly Road, all of which we cover. Other places close to Boughton Green include Boughton Monchelsea (1 mile east), Loose (1 mile north-west), Park Wood (1 mile north-east), Linton (1 mile south-west) and Wierton (1 mile south-east). Further out, we also cover Sittingbourne (12 miles north-east), Sevenoaks (15 miles west), Royal Tunbridge Wells (13 miles south-west), Gravesend (15 miles north-west), Tonbridge (11 miles west) and Kings Hill (6 miles north-west).
What’s near Boughton Green
We work in homes and buildings around The Curious Eatery pub and Cornwallis Academy and the streets around them. Boughton Green’s nearest station is East Farleigh station, roughly 2.4 miles north-west. Nearby you’ll also find Kent Fire Brigade Museum (1.9 miles north) and Oakwood Hospital (3.1 miles north-west).
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Take care around the mastic when scraping paint
- Clear gutters so water doesn’t pour onto the windows
- Keep modern sealant off the mastic
- Leave the new mastic unpainted
Leave the new mastic alone while it firms up. It skins over quickly but needs longer to fully harden.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
How it works
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. Most jobs take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Boughton Green, 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.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- 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
- Keep children and pets away from the work area
- Let us know about parking restrictions
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Need a quote? Please ring 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and send you a clear quote before we start.
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Boughton Green: your questions answered
Do you cover smaller places like Boughton Green?
Yes, Boughton Green is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I let a flat near East Farleigh station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Is consent needed for window work on a listed home?
Yes, it’s worth checking. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
What guarantee comes with the work?
There’s a 12-month guarantee on every job.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We’ll tell you what to expect for your job.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
Where are you based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Why it’s worth doing now in Boughton Green
If you’re redecorating, renew the mastic first. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. In a small place like Boughton Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That is why we ask about the job first and agree the price before starting.
What you get with us
- A 12-month guarantee on all work
- Fully insured
- Old sealant always removed completely
- Arbo and Everbuild products
Take a look at our cost guide and customer reviews.
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Different surfaces, different methods
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Stone surrounds
The stone is treated with care while raking out the old mastic.
What else we do in Boughton Green
When it is not the sealant
We will always be straight with you, so here’s what sealant cannot fix:
- Broken panes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Damaged stone surrounds
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Brick reveals
- Sash and case windows
- Stone surrounds
- Timber door frames
- Period & listed homes
- Tenement windows
