East Sussex · England

Sand mastic for sash & case windows in Plumpton, East Sussex

Our applicators work in Plumpton on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly.

  • Modern sealant on a period surround
  • Old sand mastic that has cracked, crumbled or fallen out
  • Weathered mastic on the most exposed windows

Need sand mastic in Plumpton?

Should I try it myself first?

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.

Sand mastic in Plumpton, done properly

Sand mastic doesn’t last for ever, leaving gaps round the window. We rake it out and renew it and tidies the surround. If you are dealing with silicone on a period window that looks wrong and mastic worn away on windows facing the weather, we can help.

Homes in small places like Plumpton often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.

Whatever the size of the job, it’s backed by our 12-month guarantee.

Place
Plumpton (BN7)
Region
East Sussex
Guarantee
A year, on every job
Price
A clear quote up front
Telephone
0345 464 0079
Page updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Landlord and commercial work in Plumpton

In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.

Housing providers, facilities teams and property managers book us too in Plumpton and across East Sussex. Several sites can be quoted together, and we are fully insured for the work.

Common questions in Plumpton

Is Plumpton within the area you cover?

Yes. Plumpton is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Is Plumpton in your area for sand mastic?

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

Should I try DIY first?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

What’s sand mastic made of?

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

Do you work for letting agents?

Yes, regularly. Several properties can be quoted together.

What guarantee comes with the work?

Our one-year guarantee covers every job, sand mastic included.

Will you leave a mess?

Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.

I rent my home. Can I book you?

We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.

Quotes for sand mastic in Plumpton

The price is agreed before any work begins. It’s based on:

  • The number and length of the joints
  • The old material and how stubborn it is
  • How easy the joints are to reach
  • The number of rooms or windows

What you pay reflects the work, not guesswork. That is why we ask about the job first and agree the price before starting.

What we need to know

Before you ask for a quote, have a think about:

  • Any access issues, like height or stairs
  • Where the job is, and your postcode
  • The problem you’ve noticed
  • If it’s domestic, commercial or a hotel

Want a quote for sand mastic? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.

Leave it or put it right?

If you’re redecorating, renew the mastic first. Painting over failed mastic does not seal it, and the new mastic is traditionally left unpainted. Older cottages and farmhouses around Plumpton can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.

What you get with us

  • Quality sealants from Arbo and Everbuild
  • 4.9 on Google from 180+ five-star reviews
  • Tidy, careful work
  • Old sealant always removed completely

Read our cost guide and customer reviews.

What the job involves on each surface

Stone surrounds

Sand mastic sits naturally against stone. It finishes to look like part of the surround.

Tenement and terrace windows

Windows above ground floor need the right access. Let us know the floor and we will confirm access.

What happens on the day

The work is kept neat and contained to the area we’re working on. Expect the work to take a few hours for a single window, longer for several, and we tell you how long to leave it before we go. Somewhere like Plumpton needs a little journey planning: 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 check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. Large voids are packed out.
  4. We point the joint with sand mastic by hand.
  5. The finish is dressed neatly.

Getting ready for the visit

  • Keep pets and children clear of the area while we work
  • Clear items away from the joints we’re working on
  • On commercial sites, let us know about site rules

Getting a quote

There’s no standard price list. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.

Get a price

Read more

Plumpton homes and the weather

London and the South East are among 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 Anne of Cleves House (about 4 miles south-east) nearby, there’s older building stock in the area around Plumpton as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

Homes close to The Parish Church of St Michael and All Angels include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Plumpton is about 4 miles north-west of Lewes, in East Sussex. From the centre of Plumpton to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Plumpton is one of 289 places in East Sussex we cover. Brighton is on our list too, about 6 miles from Plumpton.

All of BN7 is within our area for sand mastic, from the main roads to the quietest streets. That includes homes and businesses on Plumpton Lane and Ditchling Road and the roads around them. Neighbouring places we cover for sand mastic include East Chiltington (1 mile north-east), Streat (1 mile north-west), Chiltington (2 miles north-east), Plumpton Green (2 miles north) and Cooksbridge (2 miles east). Further out, we also cover Seaford (12 miles south-east), Lewes (4 miles south-east), Hailsham (14 miles east), Crowborough (14 miles north-east), Uckfield (8 miles north-east) and Newhaven (9 miles south-east).

What’s near Plumpton

Around Plumpton, our work takes us to homes and buildings near The Half Moon Inn, among other places. The closest station to Plumpton is Plumpton station, about 1.4 miles north of the centre. A little further out are Lewes Victoria Hospital (3.4 miles south-east) and Clayton Castle (3.7 miles west). Open spaces near Plumpton include Malling Down and Blackcap.

Map of Plumpton © OpenStreetMap contributors

What we’re called out for in Plumpton

Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.

People usually contact us when they notice something like this:

  • Draughts and rain around sash boxes
  • Old cement repairs round a window that have failed
  • Gaps between timber frames and stone or brick
  • Weathered mastic on the most exposed windows

If you let a flat or house near Plumpton station, any sash windows need sound mastic to keep draughts and rain out.

Comparing quotes

  • What product goes in the joint
  • Who does the work, and how experienced they are
  • Whether VAT is included
  • What happens if the job turns out different

Choosing a sealant specialist

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