East Sussex · England
Sand Mastic in Stonegate
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Stonegate, with a 12-month guarantee on every job. Call for a quick quote.
- Failed mastic on an exposed elevation
- Modern sealant on a period surround
- Gaps round a timber door in stone or brick
Sand mastic in Stonegate
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We’re often asked to deal with cement or filler used on old window joints that has cracked and modern sealant on a period surround, across sash and case windows, stone surrounds and tenement windows.
In a village or hamlet like Stonegate, 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.
Each job carries a 12-month guarantee.
- Place
- Stonegate (TN5)
- Region
- East Sussex
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
FAQs for Stonegate
Can you do sand mastic in Stonegate?
Yes, Stonegate is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we will send you a clear quote.
Will you come out to Stonegate?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Can landlords and businesses book you?
Yes, we do. We work in homes, commercial premises and hotels, and we’re fully insured.
How long does sand mastic take to harden?
The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.
Can you do several jobs on one visit?
Of course. Doing several areas at once is generally more efficient.
Can I paint the new mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
How long will you be here?
Typically it takes anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer, and we’ll tell you how long to expect.
How the visit works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to a full day, depending on how many windows. In a small place like Stonegate, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- On commercial sites, let us know about site rules
- Move anything stored near the joints
- Try not to wet indoor joints just before the visit
Getting a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Read more
Also near Stonegate
Also in Stonegate
Signs you need sand mastic in Stonegate
Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.
The most common problems we see are:
- Cement or filler used on old window joints that has cracked
- Window mastic to renew ahead of painting
- Weathered mastic on the most exposed windows
- Mastic round period door frames that has failed
Rented homes near Stonegate station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
What your quote should include
- Which colour the sealant will be
- What happens if the job turns out different
- How much experience the applicator has
- Whether they’re fully insured
What sand mastic looks like in Stonegate
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. With historic houses such as Wadhurst Castle (about 3 miles north-west) nearby, there’s older building stock in the area around Stonegate 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.
In the older streets around Church of St Peter, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you look after a building such as Stonegate Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Stonegate is about 9 miles south-east of Royal Tunbridge Wells, in East Sussex. Whether you’re in the middle of Stonegate or further out, we cover sand mastic for every kind of property. 289 places in East Sussex are on our list. You can also see our page for Crawley, about 25 miles away.
We work across TN5 for sand mastic and the streets around it. If you need sand mastic at a property on Station Road, Forge Field and Lymden Lane or a nearby road, our applicators can take on the job. Nearby, we also carry out sand mastic in Wallcrouch (1 mile north), Shover's Green (1 mile north-west), Birchett's Green (2 miles north), Witherenden Hill (2 miles south-west) and Holton Hill (2 miles south). We also work in nearby towns such as Hastings (14 miles south-east), Bexhill-on-Sea (13 miles south), Hailsham (13 miles south-west), Crowborough (9 miles west), St Leonards (14 miles south-east) and Uckfield (13 miles west).
Around Stonegate
Stonegate’s nearest station is Stonegate station, roughly 1 mile south-west. Well-known places in the area include Old Scotney Castle (4.4 miles north) and Ticehurst House Hospital (1.5 miles north-east). For a walk, there’s Bewl Water.
What affects the cost of sand mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- The old material and how stubborn it is
- When we can work, for business premises
- The number and length of the joints
- How easy the joints are to reach
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
To help us quote quickly, let us know:
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- Any previous sealing or DIY work
- Any access issues, like height or stairs
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, ring 0345 464 0079 or send us an email.
Landlords, agents and businesses in Stonegate
We also work for property managers and facilities teams in Stonegate and across East Sussex. We can quote a run of properties together, and we are fully insured.
For anyone letting property in or around Stonegate, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Why deal with it now?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. In a small place like Stonegate, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why Stonegate customers choose us
- One-year guarantee on every job
- Full insurance on every job
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
Read what affects the cost or customer reviews.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Ask us before painting near the mastic
- Sort the mastic before the decorators arrive
- Take care around the mastic when scraping paint
- Keep modern sealant off the mastic
Don’t run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.