East Sussex · England
Sand Mastic in Barcombe Mills
Our applicators work in Barcombe Mills on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Mastic dropping out of the joint
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
Sand mastic in Barcombe Mills
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It suits period and listed homes, where modern sealant can look out of place. Typical jobs include draughty sash windows at the surround and tired mastic found when preparing windows for paint, on timber door frames, sash and case windows and brick reveals.
In a village or hamlet like Barcombe Mills, 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.
You are covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or drop us an email.
- Place
- Barcombe Mills (BN8)
- Region
- East Sussex
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
When it isn’t the sealant
To be straight with you, some problems need a different trade:
- Decisions on consent for listed homes
- Broken panes
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before booking.
Joints and surfaces we work on
- Sash and case windows
- Period & listed homes
- Stone surrounds
- Tenement windows
- Brick reveals
- Timber door frames
The process
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours per window, depending on the condition of the joints and we leave things clean and tidy. In a small place like Barcombe Mills, access is usually the main thing to plan. 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.
- 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.
Preparing for the visit
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or send us an email.
Related advice
Nearby places to Barcombe Mills
What else we do in Barcombe Mills
Windows and doors in Barcombe Mills
With historic houses such as Glyndebourne (about 3 miles south-east) nearby, there’s older building stock in the area around Barcombe Mills as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
Letting a property close to Cooksbridge station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. For site and facilities teams at buildings such as Barcombe Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as The Parish Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Barcombe Mills is about 3 miles north-east of Lewes, in East Sussex. From the centre of Barcombe Mills to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our East Sussex coverage runs to 289 places, Barcombe Mills among them. We also work in Brighton, around 9 miles away.
Work in BN8 works the same way as everywhere else we cover. We also cover Barcombe (1 mile west), Barcombe Cross (1 mile north-west), Upper Wellingham (1 mile south), Mount Pleasant (1 mile north) and Norlington (2 miles south-east). Within a short drive, we also cover Eastbourne (14 miles south-east), Seaford (10 miles south), Lewes (3 miles south-west), Hailsham (10 miles east), Crowborough (11 miles north-east) and Uckfield (5 miles north-east).
Landmarks near Barcombe Mills
We work in homes and buildings around Anglers Rest pub and Ringmer Community College and Sixth Form. For rail, the closest station is Cooksbridge station, roughly 2 miles south-west of the centre. A little further out are Lewes Castle (3.2 miles south) and Museum of Agricultural Bygones (2.9 miles south-east). Open spaces near Barcombe Mills include Cliffe Hill and Malling Down.
Leave it or put it right?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Where a wall is exposed, as many are in small places like Barcombe Mills, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why choose Mr Mastic in Barcombe Mills
- Full insurance on every job
- We never seal over old sealant
- One-year guarantee on every job
- 20+ years of sealant experience
Take a look at how sealant jobs are priced and our reviews.
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
Surface by surface
Timber door frames
Door frames get knocked and soaked, so their mastic can fail sooner. We rake it out and renew it.
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
Barcombe Mills: your questions answered
Do you cover smaller places like Barcombe Mills?
Yes. Barcombe Mills is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Cooksbridge station. Can you help?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Do you work for hotels and businesses?
Yes. Larger jobs can be planned room by room or area by area.
Can you match the sealant colour?
Usually, yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before work begins.
Can you replace silicone on a period window with sand mastic?
Yes, we do this often. The old silicone has to come out completely so the mastic can sit properly.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Keep modern sealant off the mastic
- Look over the window mastic once a year
- Plan mastic work ahead of painting
- Go gently near the mastic when preparing windows
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.