East Sussex · England
Sand Mastic in Eastbourne
We cover Eastbourne for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Window mastic to renew ahead of painting
- Wind and rain getting in round a sash window
- Mastic worn away on windows facing the weather
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Make sure water runs off the sill
- Avoid heavy scraping on the mastic joint
- Plan mastic work ahead of painting
- Avoid patching sand mastic with silicone
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Sand mastic in Eastbourne
Sand mastic doesn’t last for ever and gaps open up round the frame. We rake it out and renew it and tidies the surround. Common call-outs are for mastic round period door frames that has failed and gaps where the frame meets the masonry, across stone surrounds, tenement windows and sash and case windows.
Town-centre flats, shops and offices in Eastbourne have long runs of frames and glazing, often on upper floors. Failed joints up there let in water that can go unnoticed for a while.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Eastbourne (BN23, BN22, BN21, BN20)
- Wider area
- East Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why it’s worth doing now in Eastbourne
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In flats, shops and offices in Eastbourne, a failed joint can let water into the unit below or behind a wall, where it can go unnoticed until the damage is done.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why Eastbourne customers choose us
- We are fully insured
- Arbo and Everbuild products
- Neat joints and a tidy finish
- A 12-month guarantee on all work
Read what affects the cost and customer reviews.
FAQs for Eastbourne
I let a flat near Hampden Park station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or email us with the details for a clear quote.
Does living near the coast affect sand mastic in Eastbourne?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and shaped to suit the surround.
Is there any odour?
There can be a smell while the sealant cures. Ventilation helps.
When will the new mastic be hard?
It skins over fairly quickly but takes longer to harden fully. We’ll tell you what to expect for your job.
Do you have insurance?
Yes. We’re fully insured.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
Do you offer different sealant colours?
We help you choose a colour that suits. The choice depends on the product the joint needs.
When something else is needed
Before you book, it’s worth knowing the limits:
- Cracked or broken glass
- Planning or listed building consent (your local planning authority decides)
- Crumbling stone or brickwork round the window
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Period & listed homes
- Brick reveals
- Sash and case windows
- Timber door frames
- Stone surrounds
- Tenement windows
Eastbourne homes and the weather
Eastbourne is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. 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.
If you let a flat or house near Hampden Park station, any sash windows need sound mastic to keep draughts and rain out. If you look after a building such as Stafford Junior School, larger buildings have plenty of frames, and the mastic around each one ages. Homes close to St Andrew include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Eastbourne is in East Sussex. Jobs in Eastbourne get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Eastbourne is one of 289 places in East Sussex where we work. Brighton is on our list too, about 19 miles from Eastbourne.
Here we cover the BN23, BN22, BN21 and BN20 postcode area for sand mastic. We cover properties on Vine Square, Ashford Square and Howard Square and the roads around them. Main roads around Eastbourne include the A22 and A259, which makes travel easy. Nearby, we also carry out sand mastic in Hampden Park (1 mile north-west), Upperton (1 mile south-west), Old Town (1 mile south-west), Ratton Village (2 miles west) and Meads (2 miles south). Further out, we also cover Hastings (13 miles north-east), Bexhill-on-Sea (9 miles north-east), Seaford (8 miles west), Lewes (14 miles north-west), Hailsham (6 miles north) and St Leonards (13 miles east). Eastbourne is among the bigger towns we cover in East Sussex.
Around Eastbourne
Around Eastbourne, our work takes us to homes and buildings near Princes Park, Ratton School and The King's Arms Public House and the streets around them. The closest station to Eastbourne is Hampden Park station, roughly 0.7 miles north-west. Well-known places in the area include Pevensey Castle (3 miles north-east) and Royal Sussex Regimental Museum (1 mile south-east). Open spaces near Eastbourne include Combe Hill.
Also near Eastbourne
Also in Eastbourne
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Can I do it myself?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
The process
On the day, we start by going over the job with you. We protect the surfaces around the joints before work begins. The work generally takes anything from a few hours to a full day, depending on how many windows. In central Eastbourne, parking can be tight, so tell us about driveways, permits or nearby car parks. For flats, mention stairs, lifts and shared entrances as well.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
Get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, ring 0345 464 0079 or send us an email.
Advice
How the job changes by surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we’ll confirm access.