East Sussex · England
Sand mastic for sash & case windows in Winton, East Sussex
We cover Winton 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.
- Draughty sash windows at the surround
- Mastic dropping out of the joint
- Gaps between timber frames and stone or brick
About our sand mastic in Winton
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We work on period & listed homes, timber door frames and brick reveals, and the jobs we see most are mastic worn away on windows facing the weather and gaps between timber frames and stone or brick.
Somewhere as small as Winton, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
All our work is covered by our 12-month guarantee.
- Where
- Winton (BN26)
- Wider area
- East Sussex
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What sand mastic looks like in Winton
With historic houses such as Alfriston Clergy House (about 0.5 miles south) nearby, there’s older building stock in the area around Winton 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. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Berwick (Sussex) station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around Church of St. Andrew, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Winton is about 3 miles north-east of Seaford, in East Sussex. Jobs in Winton get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Winton is one of 289 places in East Sussex where we work. We also work in Brighton, about 13 miles from Winton.
Postcode districts we cover here for sand mastic: BN26. We also cover the places around Winton: Alfriston (1 mile south), Lullington (1 mile south), Milton Street (1 mile east), Dukes Green (1 mile south) and Alciston (1 mile north-west). Within a short drive, we also cover Eastbourne (6 miles east), Bexhill-on-Sea (14 miles east), Seaford (3 miles south-west), Lewes (8 miles north-west), Hailsham (6 miles north-east) and Uckfield (11 miles north).
Landmarks near Winton
In Winton, that means homes and buildings near Ye Olde Smugglers Inn and the streets around them. The nearest railway station is Berwick (Sussex) station, about 1.9 miles north of the centre. A little further out are Old Forge Museum (Alfriston) (within half a mile south) and Arlington Castle (0.5 miles east). Not far away are Firle Beacon.
Why deal with it now?
Not every filler suits an old window surround. Sand mastic is the like-for-like choice and that can be important for listed homes. In a small place like Winton, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A few things move the cost up or down: 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 you get with us
- ARBOMaster approved applicator
- We are fully insured
- Old sealant always removed completely
- Experience in homes, commercial sites and hotels
Take a look at what affects the cost or our reviews.
Landlord and commercial work in Winton
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
For anyone letting property in or around Winton, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Winton questions
Will you come out to Winton?
Yes, we do. 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.
Do you work for landlords with property near Berwick (Sussex) station?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Can you replace silicone on a period window with sand mastic?
Yes. We remove the silicone and clean the joint before the sand mastic goes in.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
How much does sand mastic cost in Winton?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
What guarantee comes with the work?
Our 12-month guarantee applies on every job.
Is sand mastic better than silicone for my windows?
We’ll help you decide. Sand mastic suits many period homes and newer frames suit modern sealant.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
What the job involves on each surface
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. Sand mastic is shaped by hand to suit.
More services for Winton
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Inspect the joints round the windows every year or so
- Leave the new mastic unpainted
- Take care around the mastic when scraping paint
- Renew mastic before redecorating the windows
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
What we are called out for in Winton
Age is the main cause. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
Any of these means the joints need attention:
- Weathered mastic on the most exposed windows
- Mastic dropping out of the joint
- Cement or filler used on old window joints that has cracked
- Gaps where the frame meets the masonry
For site and facilities teams at buildings such as Alfriston School, the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- What the cure time is
- What the quote includes, VAT included or not
- Who turns up on the day
- What happens if they find a problem under the old sealant
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. Somewhere as small as Winton, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
- Clear items away from the joints we are working on
Getting a quote
To get 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 we start.