East Sussex · England
Sand mastic for sash & case windows in Upperton, East Sussex
Our applicators work in Upperton on 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.
- Tired mastic found when preparing windows for paint
- Cracked mastic round a front door frame
- Mastic worn away on windows facing the weather
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Cracked or broken glass
- Timber that has rotted
- Crumbling stone or brickwork round the window
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Sash and case windows
- Timber door frames
- Period & listed homes
- Tenement windows
- Brick reveals
- Stone surrounds
Sand mastic in Upperton, done properly
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. If you have modern sealant on a period surround and old cement repairs round a window that have failed, we can put it right.
Around Upperton, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.
- Place
- Upperton (BN21, BN22, BN20)
- Wider area
- East Sussex
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
FAQs for Upperton
Is sand mastic in a coastal place like Upperton any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are generally the first to need attention.
Do you work for landlords with property near Eastbourne station?
Yes, rental work is part of what we do. 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 we start.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.
Can you replace silicone on a period window with sand mastic?
Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.
Should I use sand mastic or silicone?
It depends on the window. On many period windows, sand mastic looks right and suits the building and newer frames normally get a flexible sealant.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures.
How do I get a quote for sand mastic in Upperton?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or drop us an email and tell us what needs doing and where.
What exactly is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Take care around the mastic when scraping paint
- Ask a joiner to look at soft timber first
- Don’t paint over the new mastic
- Check the mastic when you check the paintwork
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Also near Upperton
Also in Upperton
Quotes for sand mastic in Upperton
You’ll get a clear quote before we start. It’s based on:
- How many rooms, windows or areas are involved
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- Whether the work is at height
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Photos by email, if that’s easy
- How we’d reach the joints
- Roughly how big the job is
- Whether it has been sealed before
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
What happens on the day
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a few hours per window, depending on the condition of the joints, including the tidy-up. In a smaller place like Upperton, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- 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.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Mention any tricky access
- Tell us if parking is tricky
- Tell us about any water getting in
Get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved.
Related advice
Landlords, agents and businesses in Upperton
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Letting agents and landlords in Upperton can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. 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.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Upperton homes and the weather
Upperton is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Eastbourne station, cracked sand mastic around sash windows lets in the draughts tenants complain about. If you look after a building such as St Thomas A Becket Catholic Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Upperton is about 1 mile south-west of Eastbourne, in East Sussex. We provide sand mastic to homeowners, landlords and businesses in Upperton. Our area takes in 289 places across East Sussex, large and small. Brighton is on our list too, about 18 miles from Upperton.
Work in BN21, BN22 and BN20 is quoted and booked the same way as anywhere else. That includes homes and businesses on Love Lane, Hyde Road and York Road. Upperton is on the A2021 and A2040, so it’s easy for us to get to with everything needed for sand mastic. Close by, we work in Old Town (1 mile west), Eastbourne (1 mile north-east), Meads (1 mile south), Holywell (1 mile south) and Ratton Village (2 miles north-west). We also work in nearby towns such as Hastings (14 miles north-east), Bexhill-on-Sea (10 miles north-east), Seaford (7 miles west), Lewes (14 miles north-west), Hailsham (6 miles north) and St Leonards (13 miles north-east).
Local landmarks in Upperton
Around Upperton, our work takes us to homes and buildings near Gildredge House, WMG Academy for Young Engineers and The Rainbow pub, among other places. There’s a railway station in Upperton itself: Eastbourne station. Other landmarks nearby include Eastbourne District General Hospital (0.9 miles north-west) and Pevensey Castle (4 miles north-east). Green spaces nearby include Combe Hill.
What we’re called out for in Upperton
Shallow joints are a common cause. Mastic that is too thin cracks and drops out so we make sure the new mastic is the right thickness.
It’s worth asking for a quote if you see:
- Patchy fillers round a sash window
- Tired mastic found when preparing windows for paint
- Gaps between timber frames and stone or brick
- Modern sealant on a period surround
In the older streets around Church of St Mary, the joint between an old wall and a newer frame is generally the first place rain gets in.
Comparing quotes
- How much experience the applicator has
- What preparation is included
- What guarantee comes with the work
- What product goes in the joint