East Sussex · England
Sand Mastic in Barcombe Cross
Professional sand mastic in and around Barcombe Cross, with old sealant always removed completely and a 12-month guarantee.
- Gaps round a timber door in stone or brick
- Mastic dropping out of the joint
- Gaps between timber frames and stone or brick
When it is not the sealant
Before booking, it’s worth knowing the limits too:
- Masonry that needs repairing
- Cracked or broken glass
- Timber that has rotted
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Where we work in Barcombe Cross
- Period & listed homes
- Sash and case windows
- Brick reveals
- Tenement windows
- Timber door frames
- Stone surrounds
Sand mastic in Barcombe Cross
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. We work on tenement windows, period & listed homes and brick reveals, and the jobs we see most are patchy fillers round a sash window and gaps round a timber door in stone or brick.
Mastic can only go onto a dry, clean joint, so window work in Barcombe Cross is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Barcombe Cross (BN8)
- Region
- East Sussex
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Barcombe Cross
What else we do in Barcombe Cross
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes a few hours for a single window, longer for several. In a small place like Barcombe Cross, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Tell us if parking is tricky
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
Getting a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, phone 0345 464 0079 or email us.
Read more
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Have rotten timber repaired before new mastic goes in
- Look over the window mastic once a year
- Sort the mastic before the decorators arrive
- Make sure water runs off the sill
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
What affects the cost of sand mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- The number of rooms or windows
- The size of the job
Combining jobs into one visit normally makes better use of the time than several visits. We’ll send you a clear quote for the lot.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- How we’d reach the joints
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
If you are in Barcombe Cross and need sand mastic, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Landlord and commercial work in Barcombe Cross
We also work for property managers and facilities teams in Barcombe Cross and across East Sussex. We can quote a run of properties together.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Questions from Barcombe Cross
Do you cover smaller places like Barcombe Cross?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Barcombe Cross for sand mastic?
Yes. We work across London and the South East, and Barcombe Cross is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job.
Do I need to be at home?
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.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you replace silicone on a period window with sand mastic?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
Can I add another job to the visit?
Yes. Just list everything you need.
Can sand mastic be painted?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
How do I get a quote for sand mastic in Barcombe Cross?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before we start.
How the job changes by surface
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
What sand mastic looks like in Barcombe Cross
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Glyndebourne (about 3.7 miles south-east) are a reminder that the area around Barcombe Cross 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.
Schools such as Barcombe Church of England Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Cooksbridge station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to St Francis of Assisi include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Barcombe Cross is about 3 miles north of Lewes, in East Sussex. Jobs in Barcombe Cross get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Barcombe Cross is one of 289 places in East Sussex we cover for sand mastic. Our Brighton page covers work nearby (9 miles or so).
Our applicators cover all of the BN8 postcode area for sand mastic and the streets around it. Streets in the area include High Street, Grange Road and Weald Close. Close by, we work in Barcombe (1 mile south), Mount Pleasant (1 mile north-east), Barcombe Mills (1 mile south-east), Upper Wellingham (2 miles south-east) and Cooksbridge (2 miles south-west). Within a short drive, we also cover Eastbourne (15 miles south-east), Seaford (11 miles south), Lewes (3 miles south), Hailsham (11 miles east), Crowborough (11 miles north-east) and Uckfield (5 miles north-east).
Landmarks near Barcombe Cross
Locally, jobs take us to homes and businesses close to Royal Oak pub and Chailey School and the streets around them. Barcombe Cross’s nearest station is Cooksbridge station, about 1.9 miles south-west. Nearby you’ll also find Museum of Agricultural Bygones (3.7 miles south-east) and Lewes Victoria Hospital (3.6 miles south). Open spaces near Barcombe Cross include Malling Down and Offham Hill.