West Sussex · England

Horsemere Green Sand Mastic

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Horsemere Green. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • A silicone bead on a sash window that spoils the look
  • Open joints round the window box
  • Mastic worn away on windows facing the weather

Sand mastic in Horsemere Green

Sand mastic in Horsemere Green, done properly

If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. If you’re dealing with gaps between timber frames and stone or brick and mastic round period door frames that has failed, we can help, on timber door frames, tenement windows and brick reveals alike.

Homes in small places like Horsemere Green often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.

The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Horsemere Green (BN17)
Region
West Sussex
Guarantee
A year, on every job
Quote
A clear price before we start
Phone
0345 464 0079
Page updated
26 October 2026

Frames and glazing around Horsemere Green

Horsemere Green is close to 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. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Managing a site like St Mary's CofE Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Ford station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.

Horsemere Green is about 2 miles west of Littlehampton, in West Sussex. For sand mastic in and around Horsemere Green, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We’re based in Crawley and cover West Sussex. Horsemere Green is one of 371 places in West Sussex where we work. We also work in Brighton, about 20 miles from Horsemere Green.

We work across BN17 for sand mastic. We cover properties on Langford Close, Horsemere Green Lane and Apple Tree Walk and the roads around them. Nearby, we also carry out sand mastic in Climping (1 mile east), Atherington (1 mile south-east), Ford (1 mile north), Tortington (2 miles north) and Wick (2 miles north-east). We also work in nearby towns such as Worthing (8 miles east), Bognor Regis (5 miles west), Chichester (9 miles west), Selsey (10 miles south-west), Shoreham-by-Sea (14 miles east) and Lancing (12 miles east).

Around Horsemere Green

We work in homes and buildings around The Black Horse Public House and The Littlehampton Academy, among other places. Horsemere Green’s nearest station is Ford station, roughly 1.3 miles north of the centre. Nearby you’ll also find Arundel Castle (3.4 miles north-east) and Arundel and District Hospital (3.1 miles north). Not far away are WWT Arundel.

Map of Horsemere Green © OpenStreetMap contributors

How the visit works

Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours for a single window, longer for several. For a village or hamlet like Horsemere Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. We start by checking each surround and agreeing the joints to renew.
  2. The loose and crumbling mastic is raked out and the joint cleaned.
  3. Deep voids are packed so the mastic is the right thickness.
  4. Sand mastic is mixed and applied by hand, then shaped to the joint.
  5. We dress the surface so it sits neatly against the masonry.

Before we arrive

  • Keep pets and children clear of the area while we work
  • Let us know about stairs, lifts or work at height
  • Let us know about earlier repairs to the joints

Get a quote

If you are in Horsemere Green and need sand mastic, ring 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before work begins.

Get a price

Related advice

What the job involves on each surface

Timber door frames

Sand mastic is used round timber door frames too. The method is the same as for windows.

Tenement and terrace windows

In shared buildings, the windows may be part of a wider repair, so check who is responsible first.

What happens if it’s left?

New sash windows are a major, costly change and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Around Horsemere Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

The cost reflects the work involved, not guesswork. That is why we ask a few questions first and give you a clear quote before any work starts.

Why us?

  • A 12-month guarantee on all work
  • We’re fully insured
  • Over 20 years’ experience
  • ARBOMaster approved applicator

Take a look at our cost guide or what customers say.

What affects the quote in Horsemere Green

We quote each job individually. This is what makes a difference:

  • Any mould that needs treating
  • Whether old sealant or filler has to be cut out
  • The type of sealant required
  • How easy the joints are to reach

Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.

What we need to know

There’s no need for technical detail. Just tell us:

  • If someone has resealed it before
  • The problem you’ve noticed
  • Where the job is, and your postcode
  • How many joints, rooms or windows are involved

For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear quote.

FAQs for Horsemere Green

I let a flat near Ford station. Can you help?

Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.

Is Horsemere Green within the area you cover?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Will you leave a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

Is the work guaranteed?

Our 12-month guarantee applies on every job.

Are you fully insured?

Yes. Mr Mastic is fully insured.

Can I do it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Do you work for hotels and businesses?

Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.

What do you need from me for a quote?

The location, the problem and the rough size of the job. Photos by email help too.

Landlords, agents and businesses in Horsemere Green

Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.

Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.

When to call us in Horsemere Green

Timber swells and shrinks with the weather. That movement opens up the mastic joint over time.

People usually contact us when they notice something like this:

  • Old sand mastic that has cracked, crumbled or fallen out
  • Old cement repairs round a window that have failed
  • Cracked mastic round a front door frame
  • Gaps where the frame meets the masonry

Homes close to The Parish Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.

What your quote should include

  • Is VAT in the price?
  • What the cure time is
  • Which colour the sealant will be
  • How long the guarantee is

10 questions to ask before you book

How to look after the new joints

No joint lasts for ever, but care makes a real difference. A few tips:

  • Clear gutters so water doesn’t pour onto the windows
  • Leave the new mastic unpainted
  • Get any rot dealt with first
  • Sort the mastic before the decorators arrive

Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.

Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.

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