East Sussex · England
Alciston Sand Mastic
Sand mastic for Alciston, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Mastic worn away on windows facing the weather
- Draughts and rain around sash boxes
- Old cement repairs round a window that have failed
DIY versus a professional finish
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.
If you’re set on DIY, put the effort into 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.
How we handle sand mastic in Alciston
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. We work on stone surrounds, tenement windows and sash and case windows, and the jobs we see most are patchy fillers round a sash window and silicone on a period window that looks wrong.
Outdoor sealant needs dry, clean surfaces, so work on frames around Alciston is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Alciston (BN26)
- Wider area
- East Sussex
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Alciston homes and the weather
With historic houses such as Charleston Farmhouse (about 1.3 miles north-west) nearby, there’s older building stock in the area around Alciston 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. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as The Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Alciston is about 4 miles north of Seaford, in East Sussex. Whether you’re in the middle of Alciston or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Alciston is one of 289 towns and villages in East Sussex where we work for sand mastic. We also work in Brighton, about 12 miles from Alciston.
All of BN26 is covered for sand mastic, from the main roads to the quietest streets. Neighbouring places we cover for sand mastic include Selmeston (1 mile north), Berwick (1 mile north-east), Winton (1 mile south-east), Alfriston (2 miles south-east) and Milton Street (2 miles south-east). We also work in nearby towns such as Eastbourne (7 miles south-east), Bexhill-on-Sea (14 miles east), Seaford (4 miles south), Lewes (7 miles north-west), Hailsham (6 miles north-east) and Crowborough (15 miles north).
Local landmarks in Alciston
In Alciston, that means homes and buildings near Rose Cottage Inn. The nearest railway station is Berwick (Sussex) station, about 1.3 miles north-east. Nearby you will also find Arlington Castle (1.7 miles south-east) and Chailey Heritage Marine Hospital (4.6 miles south-west). Not far away are Firle Beacon.
Places near Alciston
Also in Alciston
The process
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a single window, longer for several, and the area is left clean. In a small place like Alciston, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Move anything stored near the joints
- Tell us about any water getting in
- For indoor joints, keep the area dry beforehand if you can
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Related advice
Surface by surface
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What we cannot put right
To be straight with you, there are a few things sealant will not fix:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that rattle, stick or won’t open
- Crumbling stone or brickwork round the window
If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Timber door frames
- Brick reveals
- Period & listed homes
- Sash and case windows
- Tenement windows
- Stone surrounds
Do you need sand mastic in Alciston?
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
The problems people usually mention when they call are:
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
- Weathered mastic on the most exposed windows
- Cracked mastic round a front door frame
For landlords with property near Berwick (Sussex) station, any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- The length of the guarantee
- How long to leave it before use
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
FAQs for Alciston
Do you cover smaller places like Alciston?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Alciston in your area for sand mastic?
Yes, Alciston is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Do I need permission for sand mastic on a listed building?
Check with your local planning authority. They’ll tell you if consent is needed.
How do I get a quote for sand mastic in Alciston?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before work begins.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Leave it or put it right?
Filling over old, loose mastic doesn’t last. We remove the loose material first so the new mastic stays put. Around Alciston, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
What you get with us
- Experience in homes, commercial sites and hotels
- Tidy, careful work
- 4.9 on Google from 180+ five-star reviews
- We never seal over old sealant