Kent · England
Sand Mastic in Charcott
We cover Charcott for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Mastic that needs renewing before redecorating
- Draughty sash windows at the surround
- Mastic round period door frames that has failed
About our sand mastic in Charcott
A silicone bead around a sash window can look out of place and is not always the right material. Sand mastic is the traditional choice and we can swap the silicone for it. We work on timber door frames, period & listed homes and tenement windows, and common reasons people get in touch are gaps between timber frames and stone or brick and weathered mastic on the most exposed windows.
In a village or hamlet like Charcott, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Our work is backed for twelve months, and the guarantee is the same wherever you are.

- Where
- Charcott (TN11)
- Region
- Kent
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What sealant work cannot fix
In fairness, some problems need a different trade:
- Broken panes
- Sashes that rattle, stick or will not open
- Decisions on consent for listed homes
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in Charcott
- Period & listed homes
- Stone surrounds
- Tenement windows
- Sash and case windows
- Timber door frames
- Brick reveals
FAQs for Charcott
Do you cover Charcott for sand mastic?
Yes, Charcott 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.
Do you work for landlords with property near Penshurst station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is it possible to paint over sand mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
How do I get a quote for sand mastic in Charcott?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Are you fully insured?
Yes. Full insurance covers our work.
Why deal with it now?
Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. Where a wall is exposed, as many are in small places like Charcott, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Why us?
- 180+ five-star Google reviews
- Fully insured
- An ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
Read what affects the cost and what customers say.
Places near Charcott
What else we do in Charcott
How the job changes by surface
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
How it works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere as small as Charcott, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Mention any tricky access
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Related advice
Can I do it myself?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
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 does not work out, we can still put it right.
What sand mastic looks like in Charcott
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. With historic houses such as Chiddingstone Castle (about 1.9 miles south-west) nearby, there’s older building stock in the area around Charcott as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Letting a property close to Penshurst station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Charcott is about 4 miles west of Tonbridge, in Kent. From the centre of Charcott to the outskirts, sand mastic is available for homes and businesses alike. Our Kent coverage runs to 922 places, Charcott among them. For nearby work, see our Crawley page (17 miles or so).
We work across TN11 for sand mastic and the streets around it. We also cover Hall's Green (1 mile north), Woodhatch (2 miles north-east), Bough Beech (2 miles west), Sevenoaks Weald (2 miles north) and Goathurst Common (4 miles north-west). Larger places within reach include Sevenoaks (5 miles north), Royal Tunbridge Wells (6 miles south-east), Tonbridge (4 miles east), Swanley (13 miles north), Kings Hill (11 miles north-east) and Paddock Wood (9 miles east).
Near you in Charcott
In Charcott, that means homes and buildings near Chiddingstone Castle Park and Gardens and The Greyhound pub. The closest station to Charcott is Penshurst station, about 0.5 miles south-west. Well-known places in the area include Chiddingstone Castle (1.9 miles south-west) and Tonbridge Cottage Hospital (4.5 miles south-east). Green spaces nearby include Barden Lake.
How to look after the new joints
So the new joints stay in good condition:
- Make sure water runs off the sill
- Ask a joiner to look at soft timber first
- Sort the mastic before the decorators arrive
- Keep modern sealant off the mastic
Do not run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
Common problems we fix in Charcott
Timber frames move with the seasons. The movement cracks the mastic little by little.
The problems people usually mention when they call include:
- Wind and rain getting in round a sash window
- Crumbling sand mastic round a window
- Modern sealant on a period surround
- Open joints round the window box
In the older streets around Church of St Luke, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- How the joint is cleaned and prepared
- Is the old sealant removed completely?
- The length of the guarantee
- What product goes in the joint
