West Sussex · England

Bepton Sand Mastic

Professional sand mastic in and around Bepton, with every bit of old sealant taken out first and a 12-month guarantee.

  • Gaps where the frame meets the masonry
  • Mastic round period door frames that has failed
  • Crumbling sand mastic round a window

Book sand mastic in Bepton

About our sand mastic in Bepton

If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. We work on timber door frames, stone surrounds and tenement windows, and the jobs we see most are draughty sash windows at the surround and gaps round a timber door in stone or brick.

Around Bepton, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.

Big or small, it’s backed by our 12-month guarantee in Bepton and across West Sussex.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Bepton (GU29)
Region
West Sussex
Cover
12 months on all our work
Quote
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026

Work for landlords, hotels and businesses

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.

If you manage several properties in or around Bepton, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.

DIY sealant or a professional job?

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.

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.

Why it’s worth doing now in Bepton

Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. Around Bepton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.

Why Bepton clients choose us

  • Anti-fungal sanitary silicone in wet areas
  • Over 20 years’ experience
  • Homes, businesses and hotels
  • Arbo and Everbuild products

See how sealant jobs are priced and customer reviews.

Sand mastic in Bepton: local notes

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. Historic houses like Cowdray House (about 2.7 miles north-east) are a reminder that the area around Bepton has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

Around Bepton, as everywhere, sand mastic is only as good as the preparation behind it.

Bepton is about 8 miles south-east of Petersfield, in West Sussex. Homes, rented property, offices and hotels in Bepton can book us for sand mastic. The work is guaranteed for a year. Bepton is one of 371 places in West Sussex we cover for sand mastic. Our Portsmouth page covers work nearby.

Work in GU29 works the same way as everywhere else we cover. Whether your property is on Bepton Road and Bugshill Lane or anywhere close by, we can help. Neighbouring places we cover for sand mastic include Cocking (1 mile south-east), Bepton Common (2 miles north-east), Cocking Causeway (2 miles north-east), Minsted (2 miles north) and Heyshott Green (2 miles east). Within a short drive, we also cover Bognor Regis (12 miles south), Chichester (8 miles south), Littlehampton (15 miles south-east), Emsworth (10 miles south-west), Rustington (15 miles south-east) and Storrington (14 miles east).

Near you in Bepton

Well-known places in the area include Lodsworth Castle (4.8 miles east) and Midhurst Community Hospital (3 miles north-east). Green spaces nearby include Levin Down and Iping and Stedham Commons.

Map of Bepton © OpenStreetMap contributors

Keeping the joints in good condition

Joint life depends on how it’s used and looked after. We suggest:

  • Ask the planning authority about consent for listed or conservation-area homes
  • Ask a joiner to look at soft timber first
  • Check the mastic when you check the paintwork
  • Renew mastic before redecorating the windows

Make sure water drains away from the window surround. Constant wetting wears the mastic faster.

Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.

What happens on the day

We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere as small as Bepton, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. We fill deep gaps so the new mastic isn’t too thick.
  4. New sand mastic is applied and shaped by hand.
  5. The finish is dressed neatly.

Preparing for the visit

  • Mention any parking rules near the property
  • For business premises, tell us about site rules or sign-in
  • Clear the area around the work

Get a quote

Want a quote for sand mastic? Please call 0345 464 0079 or email us with a few details. We will explain what we’d do and send you a clear quote before we start.

Get a quick quote

Related advice

Common problems we fix in Bepton

Timber swells and shrinks with the weather. The movement cracks the mastic over time.

People generally contact us after spotting something like this:

  • Mastic dropping out of the joint
  • Failed mastic on an exposed elevation
  • Tired mastic found when preparing windows for paint
  • Silicone on a period window that looks wrong

If you live in an older home near The Parish Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Before booking anyone

  • When the joint can take water or movement
  • What happens if the job turns out different
  • Is the old sealant removed completely?
  • Whether you can choose the colour

10 questions to ask before you book

Honest limits

Before you book, it’s worth knowing the limits too:

  • Damaged stone surrounds
  • Sashes that rattle, stick or won’t open
  • Putty and glazing repairs

If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.

What we seal

  • Sash and case windows
  • Stone surrounds
  • Timber door frames
  • Period & listed homes
  • Brick reveals
  • Tenement windows

Common questions in Bepton

Do you cover Bepton for sand mastic?

Yes. We work across London and the South East, and Bepton is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.

What guarantee comes with sand mastic in Bepton?

Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.

What do you put in the joint?

The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Do you take out the old sealant first?

Yes. We cut out all the old sealant and clean the joint before applying anything new.

Do the sealants smell?

It depends on the product. Some smell for a while, some hardly at all.

Can tenants book the work?

Of course. Ask your landlord first, and we can send them the quote if that helps.

Is it possible to paint over sand mastic?

It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.

Do you work for landlords and businesses?

Yes. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job