West Sussex · England

Storrington Sand Mastic

Professional sand mastic in and around Storrington, with old sealant always removed completely and a 12-month guarantee.

  • A silicone bead on a sash window that spoils the look
  • Tired mastic found when preparing windows for paint
  • Patchy fillers round a sash window

Sand mastic in Storrington

Sand mastic in Storrington

Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We are often asked to deal with failed mastic on an exposed elevation and old cement repairs round a window that have failed, on brick reveals, sash and case windows and stone surrounds.

In smaller places like Storrington, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.

You are covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or send us an email.

Where
Storrington (RH20)
Region
West Sussex
Cover
12 months on all our work
Quote
A clear price before work begins
Phone
0345 464 0079
Page updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Storrington homes and the weather

Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Parham House (about 2 miles west) are a reminder that the area around Storrington has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

If you look after a building such as Storrington Primary School, the mastic around its windows and doors needs looking after like any other building’s. In the older streets around The Parish Church of St Mary the Virgin, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Storrington is about 7 miles north of Worthing, in West Sussex. From the centre of Storrington to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Storrington is one of 371 towns and villages in West Sussex we cover for sand mastic. You can also see our page for Brighton, about 15 miles away.

We work across RH20 for sand mastic and the streets around it. That includes homes and businesses on Windmill Copse, Wantley Lane and Field End and the roads around them. Main roads around Storrington include the B2139, so getting to you is simple. If you’re just outside Storrington, we cover Cootham (1 mile west), Sullington (1 mile south-east), Heath Common (1 mile east), Abingworth (1 mile north-east) and West Chiltington Common (2 miles north). Within a short drive, we also cover Horsham (11 miles north-east), Worthing (7 miles south), Bognor Regis (14 miles south-west), Chichester (15 miles west), Burgess Hill (14 miles east) and Littlehampton (8 miles south-west).

Around Storrington

Locally, jobs take us to homes and businesses close to Parham Park, Rydon Community College and The Moon pub, among other places. The nearest railway station is Pulborough station, about 3.9 miles north-west of the centre. A little further out are The Storrington And District Museum (under half a mile south) and Amberley Castle (4.1 miles west). Open spaces near Storrington include Chanctonbury Hill and Amberley Wildbrooks RSPB Reserve.

Map of Storrington © OpenStreetMap contributors

DIY versus a professional finish

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.

Common problems we fix in Storrington

Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.

Look out for these signs:

  • Window mastic to renew ahead of painting
  • Patchy fillers round a sash window
  • Draughty sash windows at the surround
  • Gaps round a timber door in stone or brick

If you let a flat or house near Pulborough station, cracked sand mastic around sash windows lets in the draughts tenants complain about.

What to look for in a quote

  • How the colour is chosen
  • Whether VAT is included
  • How long the guarantee is
  • Which sealant they’ll use, and why

Choosing a sealant specialist

Different surfaces, different methods

Tenement and terrace windows

Where a building is shared, window work may involve neighbours, so check who is responsible first.

Sash and case windows

A sash window’s box frame sits in the masonry opening. Sand mastic seals the joint round it.

What sealant work can’t fix

We won’t take on work that won’t last, so here’s what sealant cannot put right:

  • Decisions on consent for listed homes
  • Rotten sashes, sills or window boxes (a joiner’s job)
  • Sashes that need overhauling

If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before booking.

Surfaces we seal

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

Common questions in Storrington

Do you work for landlords with property near Pulborough station?

Yes. We work for landlords and letting agents as well as householders. Just call 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.

Can you do sand mastic in Storrington?

Yes, Storrington is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.

What does sand mastic cost?

Size, access and the old material all affect the cost. Call for a quick quote.

Are you ARBOMaster approved?

Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.

Do you take out the old sealant first?

Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.

Is it possible to take out silicone and use sand mastic instead?

Generally, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.

Which is right for my windows, sand mastic or modern sealant?

We’ll talk it through with you. Sand mastic suits many period homes and newer frames suit modern sealant.

How long does sand mastic take?

Most jobs take a few hours for a single window, longer for several. We’ll confirm how long when we quote.

What happens on the day

On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. The work usually takes a few hours for a single window, longer for several. In a smaller place like Storrington, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.

  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. Large voids are packed out first, so the mastic isn’t too thick.
  4. The mastic is mixed, pressed into the joint by hand and shaped.
  5. The finish is dressed so it sits neatly against the stone or brick.

Before we arrive

  • Tell us about any water getting in
  • Clear items away from the joints we are working on
  • Try not to wet indoor joints just before the visit

Ask for a quote

Every job is quoted individually. Simply ring 0345 464 0079 or email us and describe the job, and pictures are welcome.

Ask for a quote

Read more

What affects the quote in Storrington

The price is agreed before any work begins. It takes into account:

  • The old material and how stubborn it is
  • How much there is to do
  • The product the joint needs
  • Whether the work is at height

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

What to tell us for a quote

What to tell us when you ask for a quote:

  • How many joints, rooms or windows are involved
  • A few photos by email, if you can
  • Access, such as stairs, a lift or height
  • Where the job is, and your postcode

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, ring 0345 464 0079 or drop us an email.

Aftercare tips

Simple care keeps the joints in good condition. We recommend:

  • Inspect the joints round the windows every year or so
  • Avoid heavy scraping on the mastic joint
  • Ask a joiner to look at soft timber first
  • Keep sills and gutters clear so water drains away

Do not run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.

Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.

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