West Sussex · England

Abbotsford Sand Mastic

Problem with your window and door surrounds in Abbotsford? We cut out the old, prepare the joints and apply the right sealant.

  • Gaps where the frame meets the masonry
  • Cement or filler used on old window joints that has cracked
  • Mastic that needs renewing before redecorating

Trusted sand mastic in Abbotsford

Sand mastic in Abbotsford, done properly

Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. We work on timber door frames, period & listed homes and sash and case windows, and the jobs we see most are mastic dropping out of the joint and mastic worn away on windows facing the weather.

Around Abbotsford, 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.

We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Abbotsford (RH15)
Region
West Sussex
Cover
One year on every job
Quotes
A clear quote up front
Call
0345 464 0079
Page updated
26 October 2026

Why it’s worth doing now in Abbotsford

If you’re redecorating, renew the mastic first. Painting over failed mastic does not seal it, and the new mastic is traditionally left unpainted. In a small place like Abbotsford, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.

Why us?

  • One-year guarantee on every job
  • 20+ years of sealant experience
  • We never seal over old sealant
  • Domestic, commercial and hotel work

See what affects the cost or what customers say.

How we quote for sand mastic

We do not publish a price list, because jobs vary so much. The quote depends on:

  • Mould in or behind the old joints
  • When we can work, for business premises
  • The old material and how stubborn it is
  • How easy the joints are to reach

The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.

Helping us quote

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • Pictures of the joints, sent by email
  • What’s wrong with the joints now
  • Whether it has been sealed before
  • The type of property

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or drop us an email.

For landlords and businesses

We regularly work with letting and managing agents. Tell us the address, the job and how access works.

From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.

Should I try it myself first?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

Aftercare tips

Simple care keeps the joints in good condition. Our advice:

  • Keep modern sealant off the mastic
  • Plan mastic work ahead of painting
  • Leave the new mastic unpainted
  • Take care around the mastic when scraping paint

Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.

An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.

Surface by surface

Brick reveals

An open joint at a brick reveal lets weather in. Renewing the mastic closes it.

Sash and case windows

The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.

Questions from Abbotsford

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

Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.

Is Abbotsford within the area you cover?

Yes, Abbotsford is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Can new sealant go over the old?

No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.

Is sand mastic better than silicone for my windows?

We will talk it through with you. Sand mastic suits many period homes, and modern sealants suit newer frames.

Do the sealants smell?

Possibly a little. Any smell clears as the sealant cures.

Can old silicone round a sash window be swapped for sand mastic?

In most cases. We remove the silicone and clean the joint before the sand mastic goes in.

How long does sand mastic take?

A typical job takes a few hours per window, depending on the condition of the joints. Your quote will say how long we expect yours to take.

What exactly is sand mastic?

Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.

Abbotsford homes and the weather

The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Ockenden Manor (about 2.3 miles north) nearby, there’s older building stock in the area around Abbotsford as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

Rented homes near Wivelsfield station change hands often, and any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near St Edward the Confessor, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as St Paul's Catholic College, the mastic around its windows and doors needs looking after like any other building’s.

Abbotsford is about 1 mile north-west of Burgess Hill, in West Sussex. Jobs in Abbotsford get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 371 places in West Sussex are on our list, from the larger towns to small villages. You can also see our page for Crawley, about 10 miles away.

Here we cover the RH15 postcode area for sand mastic. If you’re just outside Abbotsford, we cover Jacob's Post (1 mile south), World's End (1 mile south-east), Burgess Hill (1 mile south-east), Goddards Green (1 mile west) and Ansty (2 miles north-west). Larger places within reach include Crawley (10 miles north), Horsham (10 miles north-west), Worthing (15 miles south-west), Haywards Heath (3 miles north-east), East Grinstead (12 miles north-east) and Shoreham-by-Sea (11 miles south-west).

Landmarks near Abbotsford

In Abbotsford, that means homes and buildings near The Woolpack Public House and Sheddingdean Community Primary School. Abbotsford’s nearest station is Wivelsfield station, roughly 1.2 miles south-east of the centre. Well-known places in the area include Burgess Hill Museum (1.3 miles south-east) and Clayton Castle (4.4 miles south). Open spaces near Abbotsford include Bedelands Farm Nature Reserve and Wolstonbury Hill.

Map of Abbotsford © OpenStreetMap contributors

What happens on the day

On the day, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for a single window, longer for several. Somewhere like Abbotsford needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  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. We point the joint with sand mastic by hand.
  5. The finish is dressed neatly.

Getting ready for the visit

  • Tell us about any water getting in
  • Mention any sign-in or site rules at work premises
  • Keep pets and children clear of the area while we work

How to get a quote

For a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.

Ask for a quote

Advice

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