East Sussex · England
Sand Mastic in South Malling
Sand mastic for South Malling and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Gaps between timber frames and stone or brick
- Silicone on a period window that looks wrong
- Weathered mastic on the most exposed windows
About our sand mastic in South Malling
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. If you have cracked mastic round a front door frame and gaps between timber frames and stone or brick, we can help, whatever the surface.
Around South Malling, 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.
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
- South Malling (BN7, BN8)
- Wider area
- East Sussex
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Letting agents and landlords in South Malling can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
Frames and glazing around South Malling
Historic houses like Anne of Cleves House (about 0.8 miles south-west) are a reminder that the area around South Malling has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of St Michael, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Managing a site like South Malling CofE Primary and Nursery School? Then its window and door frames need their mastic kept sound, just like a home’s.
South Malling is about 1 mile north-east of Lewes, in East Sussex. Whether you are in the middle of South Malling or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across East Sussex, we cover 289 places, and South Malling is one of them. There’s also a page for Brighton, roughly 7 miles from South Malling.
Work in BN7 and BN8 is quoted and booked the same way as anywhere else. Whether your property is on Lee Road, New Road and Mill Road or anywhere close by, our applicators can take on the job. Main roads around South Malling include the A26 and A2029, which makes travel easy. Nearby, we also carry out sand mastic in Lewes (1 mile south-west), Cliffe (1 mile south-east), Southover (1 mile south), Hamsey (1 mile north) and Offham (1 mile north-west). Within a short drive, we also cover Eastbourne (14 miles south-east), Seaford (8 miles south-east), Hailsham (11 miles east), Crowborough (14 miles north-east), Uckfield (7 miles north-east) and Newhaven (6 miles south).
Near you in South Malling
Typical jobs here are in homes near Elephant and Castle pub, Priory School and Railway Land, among other places. The nearest railway station is Lewes station, about 0.7 miles south. Nearby you’ll also find Lewes Victoria Hospital (0.8 miles south-west) and Lewes Castle (0.5 miles south-west). Open spaces near South Malling include Malling Down and Cliffe Hill.
What else we do in South Malling
South Malling: your questions answered
I let a flat near Lewes station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Can you do sand mastic in South Malling?
Yes, South Malling is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Should I use sand mastic or silicone?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant, and we will explain why.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Ask a joiner to look at soft timber first
- Avoid heavy scraping on the mastic joint
- Sort the mastic before the decorators arrive
- Keep sills and gutters clear so water drains away
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Honest limits
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- Damaged stone surrounds
- Timber that has rotted
- Whether work needs listed building consent
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Period & listed homes
- Timber door frames
- Brick reveals
- Tenement windows
- Stone surrounds
- Sash and case windows
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Do you need sand mastic in South Malling?
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
The most common problems we see are:
- Window mastic to renew ahead of painting
- Gaps where the frame meets the masonry
- Draughts and rain around sash boxes
- Mastic worn away on windows facing the weather
If you let a flat or house near Lewes station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before booking
- How much experience the applicator has
- How the surfaces are prepared before sealing
- Whether they’re fully insured
- How the colour is chosen
Quotes for sand mastic in South Malling
For a quick quote, just ask. What matters most is:
- Whether the work is at height
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- The type of sealant required
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
What we need to know
To help us quote quickly, please include:
- Any previous sealing or DIY work
- Any access issues, like height or stairs
- Where the job is, and your postcode
- A few photos by email, if you can
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
How it works
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take anything from a few hours to a full day, depending on how many windows. Parking around South Malling is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Clear the area around the work
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or email us and describe the job and send pictures if you have them.