Oxfordshire · England

Sand mastic for sash & case windows in Pusey, Oxfordshire

Our applicators work in Pusey on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.

  • Draughts and rain around sash boxes
  • A silicone bead on a sash window that spoils the look
  • Tired mastic found when preparing windows for paint

Trusted sand mastic in Pusey

Should I try it myself first?

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

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.

About our sand mastic in Pusey

Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap and tidies the surround. If you have gaps round a timber door in stone or brick and mastic that needs renewing before redecorating, we can help, whatever the surface.

Around Pusey, 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.

There’s a 12-month guarantee on every job, whatever its size.

Applicator reaching up to seal an external door frame on a sunny day
Where
Pusey (SN7)
Wider area
Oxfordshire
Guarantee
A year, on every job
Quotes
A clear quote up front
Call
0345 464 0079
Last updated
26 October 2026

Why act early in Pusey

Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice and that can be important for listed homes. Around Pusey, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.

Why book with us

  • Sanitary silicone with an anti-fungal additive in wet areas
  • 180+ five-star Google reviews
  • Old sealant always removed completely
  • We leave the area clean and tidy

Read what affects the cost or our reviews.

What sealant work can’t fix

It helps to know what we can’t do:

  • Damaged stone surrounds
  • Broken panes
  • Sashes that need overhauling

Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before booking.

Where we work in Pusey

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

What the job involves on each surface

Sash and case windows

Sash windows are where we do most sand mastic work. We renew the mastic round each box.

Stone surrounds

The stone is treated with care while raking out the old mastic.

FAQs for Pusey

Is there a guarantee on sand mastic in Pusey?

All our work, in Pusey and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.

Will you come out to Pusey?

Yes. Pusey 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 consent needed for window work on a listed home?

Checking first is sensible. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.

Can you work on commercial sites?

Yes, regularly. We can plan bigger jobs in stages to suit the site.

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.

Is it messy?

Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.

What exactly is sand mastic?

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

Do you take out the old sealant first?

Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.

Signs you need sand mastic in Pusey

Sand mastic slowly weathers. It dries out, cracks and loses its grip from the frame or the masonry.

People usually contact us when they notice something like this:

  • Gaps round a timber door in stone or brick
  • Draughty sash windows at the surround
  • Gaps where the frame meets the masonry
  • Window mastic to renew ahead of painting

Managing a site like Buckland Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.

What your quote should include

  • How the joint is cleaned and prepared
  • How hidden problems are handled
  • When the joint can take water or movement
  • How the colour is chosen

10 questions to ask before booking

Windows and doors in Pusey

Historic houses like Longworth House (about 2.4 miles north-east) are a reminder that the area around Pusey 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 is traditional sand mastic. 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.

For an older house near a landmark such as Church of All Saints, the joint between an old wall and a newer frame is generally the first place rain gets in.

Pusey is about 6 miles north-west of Wantage, in Oxfordshire. We provide sand mastic to homes and businesses in Pusey. We cover 443 towns and villages across Oxfordshire, large and small. For nearby work, see our Oxford page.

Here we cover the SN7 postcode area for sand mastic. If you are just outside Pusey, we cover Charney Bassett (2 miles south-east), Hinton Waldrist (2 miles north-east), Longworth (3 miles north-east), Lyford (3 miles south-east) and Kingston Bagpuize (3 miles east). Larger places within reach include Oxford (12 miles north-east), Didcot (11 miles east), Abingdon-on-Thames (9 miles east), Witney (8 miles north), Carterton (8 miles north-west) and Wantage (6 miles south-east).

Local landmarks in Pusey

Well-known places in the area include Hinton Waldrist Castle (1.9 miles north-east) and Longworth Hospital (4.3 miles west).

Map of Pusey © OpenStreetMap contributors

Looking after it afterwards

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Keep modern sealant off the mastic
  • Leave the new mastic unpainted
  • Renew mastic before redecorating the windows
  • Take care around the mastic when scraping paint

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

Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.

What happens on the day

Before we leave, we go over the finished joints with you and explain the cure time. The visit itself usually takes a few hours per window, depending on the condition of the joints, depending on the size of the job. For a village or hamlet like Pusey, the journey is planned in advance: 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. First, we look at the surrounds with you and agree what needs doing.
  2. Old, loose mastic is raked out and the joint cleaned.
  3. We pack any deep gaps so the mastic sits at the right depth.
  4. The mastic is mixed, pressed into the joint by hand and shaped.
  5. We dress the surface so it sits neatly against the masonry.

Getting ready for the visit

  • Let us know about stairs, lifts or work at height
  • Move anything stored near the joints
  • Mention any sign-in or site rules at work premises

Ask for a quote

For sand mastic in Pusey, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.

Get a quick quote

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