East Sussex · England

Sand Mastic in Alfriston

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Alfriston, backed by a one-year guarantee. Ask us for a quote.

  • Old cement repairs round a window that have failed
  • Draughty sash windows at the surround
  • Window mastic to renew ahead of painting

Sand mastic in Alfriston

Surface by surface

Timber door frames

Sand mastic is used round timber door frames too. We renew it the same way as on windows.

Brick reveals

Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.

Sand mastic in Alfriston, done properly

Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. We work on sash and case windows, brick reveals and timber door frames, and common reasons people get in touch are cracked mastic round a front door frame and tired mastic found when preparing windows for paint.

In a village or hamlet like Alfriston, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.

A one-year guarantee comes as standard, so you are covered after we’ve gone.

Applicator reaching up to seal an external door frame on a sunny day
Location
Alfriston (BN26)
Wider area
East Sussex
Cover
A year, on every job
Quote
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026

Looking after it afterwards

To keep the joints looking good and working properly:

  • Keep sills and gutters clear so water drains away
  • Ask us before painting near the mastic
  • Don’t run silicone over sand mastic
  • Ask the planning authority about consent for listed or conservation-area homes

Do not touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.

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

For landlords and businesses

We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

Signs you need sand mastic in Alfriston

Age is the main cause. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.

Any of these means the joints need attention:

  • Cracked mastic round a front door frame
  • Tired mastic found when preparing windows for paint
  • Wind and rain getting in round a sash window
  • Silicone on a period window that looks wrong

For landlords with property near Berwick (Sussex) station, older sash windows in a rental need their mastic kept sound to keep the weather out.

What to look for in a quote

  • What preparation is included
  • Are they insured?
  • Which colour the sealant will be
  • How much experience the applicator has

Our hiring checklist

What affects the quote in Alfriston

You’ll get a clear quote before any work starts. It takes into account:

  • Working hours on commercial sites
  • The number and length of the joints
  • Whether old sealant or filler has to be cut out
  • Any mould that needs treating

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

What to tell us for a quote

To help us quote quickly, please include:

  • How many joints, rooms or windows are involved
  • Pictures of the joints, sent by email
  • The problem you’ve noticed
  • Any access issues, like height or stairs

Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details.

What sealant work can’t fix

We won’t take on work that won’t last, so these are the limits:

  • Putty and glazing repairs
  • Timber that has rotted
  • Sashes that rattle, stick or won’t open

If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before you book.

Surfaces we seal

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

Frames and glazing around Alfriston

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 Alfriston Clergy House (about 0.2 miles south-east) are a reminder that the area around Alfriston 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.

For an older house near a landmark such as Church of St. Andrew, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Alfriston School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.

Alfriston is about 3 miles north-east of Seaford, in East Sussex. If you need sand mastic in Alfriston, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We cover East Sussex from our Crawley base. We cover 289 towns and villages across East Sussex. Brighton is on our list too, about 13 miles from Alfriston.

Postcode districts we cover here for sand mastic: BN26. Whether your property is on High Street, Ropewalk and West Street or anywhere close by, we can help. We also cover the places around Alfriston: Winton (1 mile north), Lullington (1 mile south-east), Dukes Green (1 mile south), Milton Street (1 mile north-east) and Alciston (2 miles north-west). Further out, we also cover Eastbourne (6 miles east), Bexhill-on-Sea (14 miles east), Seaford (3 miles south-west), Lewes (8 miles north-west), Hailsham (6 miles north-east) and Uckfield (11 miles north).

What’s near Alfriston

Around Alfriston, our work takes us to homes and buildings near Ye Olde Smugglers Inn, among other places. The closest station to Alfriston is Berwick (Sussex) station, roughly 2.2 miles north of the centre. Well-known places in the area include Old Forge Museum (Alfriston) (under half a mile north-east) and Chailey Heritage Marine Hospital (4.2 miles south-west). Not far away are Firle Beacon.

Map of Alfriston © OpenStreetMap contributors

How it works

All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. Somewhere like Alfriston needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We look at the surrounds with you and agree the joints to renew.
  2. We remove the old, loose mastic.
  3. Deep gaps are packed so the mastic sits at the right depth.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. We dress the finish so it sits neatly against the masonry.

Preparing for the visit

  • On commercial sites, let us know about site rules
  • Let us know about parking restrictions
  • Keep children and pets away from the work area

Ask for a quote

Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.

Ask for a quote

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Alfriston questions

Is Alfriston within the area you cover?

Yes, Alfriston is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Can you do sand mastic in Alfriston?

Yes. We work across London and the South East, and Alfriston is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.

How long does sand mastic take to go off?

It takes a while. It skins first and hardens fully later, and we will tell you what to expect.

What guarantee comes with the work?

Our 12-month guarantee covers every job, sand mastic included.

Where do you work from?

Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Do you have insurance?

Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.

Are you an approved applicator?

Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.

How long does sand mastic take?

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

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