Kent · England
Sand Mastic in Boughton Malherbe
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Boughton Malherbe and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
- Tired mastic found when preparing windows for paint
What affects the cost of sand mastic
There’s no set price list. The quote depends on:
- The type of sealant required
- The amount of work
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
- Pictures of the joints, sent by email
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
How we handle sand mastic in Boughton Malherbe
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on brick reveals, sash and case windows and period & listed homes, and common reasons people get in touch are mastic that needs renewing before redecorating and gaps between timber frames and stone or brick.
In a village or hamlet like Boughton Malherbe, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Location
- Boughton Malherbe (ME17)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Sashes that need overhauling
- Broken panes
- Planning or listed building consent (your local planning authority decides)
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Where we work in Boughton Malherbe
- Tenement windows
- Brick reveals
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Timber door frames
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Keep modern sealant off the mastic
- Make sure water runs off the sill
- Go gently near the mastic when preparing windows
- Ask the planning authority about consent for listed or conservation-area homes
Leave the new mastic alone while it firms up. It skins over quickly but needs longer to fully harden.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
What the job involves on each surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Letting agents and landlords in Boughton Malherbe can book us as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Also near Boughton Malherbe
Also in Boughton Malherbe
Questions from Boughton Malherbe
Is Boughton Malherbe within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
I let a flat near Lenham station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we will advise.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
How much does sand mastic cost in Boughton Malherbe?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Do you offer different sealant colours?
We help you choose a colour that suits. The product needed can limit the range.
Is consent needed for window work on a listed home?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like, but they decide.
How the visit works
You don’t need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the work takes anything from a few hours to a full day, depending on how many windows for a typical job. Somewhere as small as Boughton Malherbe, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
- Let us know if you’ve seen damp or leaks
Get a quote
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
Read more
Sand mastic in Boughton Malherbe: local notes
Historic houses like Leeds Castle (about 3.6 miles north-west) are a reminder that the area around Boughton Malherbe has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Lenham station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as Platts Heath Primary School, the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Church of St Nicholas, the joint between an old wall and a newer frame is generally the first place rain gets in.
Boughton Malherbe is about 8 miles south-east of Maidstone, in Kent. Every kind of property in Boughton Malherbe can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Boughton Malherbe is one of 922 towns and villages in Kent we cover. Chelmsford is on our list too, about 37 miles from Boughton Malherbe.
Jobs for sand mastic in ME17 is quoted and booked the same way as anywhere else. If you are just outside Boughton Malherbe, we cover Liverton Street (1 mile north-west), Grafty Green (1 mile south-west), Platt's Heath (1 mile north-west), Sandway (1 mile north) and Broadstone (1 mile south-west). Further out, we also cover Maidstone (8 miles north-west), Ashford (9 miles south-east), Sittingbourne (9 miles north), Faversham (11 miles north-east), Minster (15 miles north) and Kings Hill (13 miles west).
Near you in Boughton Malherbe
Typical jobs here are in homes near Kiln Wood, The Lenham School and The Kings Head Public House. Boughton Malherbe’s nearest station is Lenham station, roughly 1.5 miles north-east. A little further out are Coldbridge Castle (1.1 miles south) and The Dog Collar Museum (3.5 miles north-west).
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.