Windsor and Maidenhead · England

Sand mastic for sash & case windows in Shottesbrooke, Windsor and Maidenhead

Professional sand mastic in and around Shottesbrooke, with every bit of old sealant taken out first and a one-year guarantee.

  • Wind and rain getting in round a sash window
  • Mastic round period door frames that has failed
  • A silicone bead on a sash window that spoils the look

Sand mastic in Shottesbrooke

What affects the cost of sand mastic

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • Whether old sealant or filler has to be cut out
  • The product the joint needs
  • 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 give you a clear price before any work starts.

What to tell us for a quote

Photos help, but a description is a good start. Try to tell us:

  • The rough size of the job
  • Whether it’s a home or a business
  • Any access issues, like height or stairs
  • Whether it has been sealed before

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work.

Sand mastic in Shottesbrooke, done properly

Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. Common call-outs are for mastic round period door frames that has failed and window mastic to renew ahead of painting, across period & listed homes, sash and case windows and tenement windows.

Mastic can only go onto a dry, clean joint, so window work in Shottesbrooke is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.

You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or email us.

Applicator reaching up to seal an external door frame on a sunny day
Location
Shottesbrooke (SL6, RG10)
Region
Windsor and Maidenhead
Guarantee
One year on every job
Quote
A clear price before work begins
Telephone
0345 464 0079
Page updated
26 October 2026

Can I do it myself?

A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

Your questions about sand mastic in Shottesbrooke

Do you cover smaller places like Shottesbrooke?

Yes. Shottesbrooke is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you cover Shottesbrooke for sand mastic?

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

Will there be a smell?

Some sealants have a smell while they cure, but it fades. Ventilation helps.

Can sand mastic be painted?

Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll talk you through it.

How long does the job take?

That depends on the amount of work, but most jobs take anything from a few hours to a full day, depending on how many windows. We’ll give you a better idea when we quote.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.

How do I get a quote for sand mastic in Shottesbrooke?

Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or drop us an email and let us know what needs doing and where.

Can you work on commercial sites?

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

Shottesbrooke homes and the weather

With historic houses such as Harleyford Manor (about 4.7 miles north) nearby, there’s older building stock in the area around Shottesbrooke as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Homes close to Church of St John the Baptist include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. Managing a site like Cox Green School? Then larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Twyford station, any sash windows need sound mastic to keep draughts and rain out.

Shottesbrooke is about 3 miles south-west of Maidenhead, in Windsor and Maidenhead. We provide sand mastic to homes and businesses in Shottesbrooke. We cover 57 towns and villages across Windsor and Maidenhead, from the larger towns to small villages. Our Reading page covers work nearby (9 miles or so).

Work in SL6 and RG10 is quoted and booked the same way as anywhere else. Local streets include Pundles Lane, Broadmoor Road and Kiln Hill, all of which we cover. Close by, we work in White Waltham (1 mile north-east), Littlefield Green (1 mile south-east), Paley Street (2 miles east), Braywoodside (2 miles south-east) and Touchen-end (3 miles east). Larger places within reach include Maidenhead (3 miles north-east), Windsor (7 miles east), Boyn Hill (3 miles north-east), North Ascot (6 miles south-east), Cookham (6 miles north-east) and Furze Platt (4 miles north-east).

What’s near Shottesbrooke

Shottesbrooke’s nearest station is Twyford station, roughly 3.3 miles west. Nearby you will also find St Mark's Hospital (3.3 miles north-east). The countryside around Shottesbrooke includes The Gullet Local Nature Reserve and Taplow Lake.

Map of Shottesbrooke © OpenStreetMap contributors

What sealant work cannot fix

We’d rather tell you now than do 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

Not sure which it is? You can ring 0345 464 0079 or drop us an email and we will tell you honestly.

What we seal

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

What the job involves on each surface

Stone surrounds

The stone is treated with care when the old mastic comes out.

Sash and case windows

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

Why it’s worth doing now in Shottesbrooke

Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them. Around Shottesbrooke, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.

Why choose Mr Mastic in Shottesbrooke

  • A 12-month guarantee on all work
  • Homes, businesses and hotels
  • We are fully insured
  • Approved under the ARBOMaster scheme

Take a look at our cost guide and customer reviews.

The process

There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the work takes a few hours per window, depending on the condition of the joints for a typical job. In a small place like Shottesbrooke, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We check the window surrounds and agree which joints need renewing.
  2. The loose and crumbling mastic is raked out and the joint cleaned.
  3. Deep voids are packed so the mastic is the right thickness.
  4. We mix the sand mastic and apply it by hand, shaping it to the joint.
  5. The mastic is finished to sit tidily against the stone or brick.

Preparing for the visit

  • Clear the area around the work
  • Mention any parking rules near the property
  • On commercial sites, let us know about site rules

Get a quote

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or drop us an email.

Get a quick quote

Advice

For landlords and businesses

If you manage several properties in or around Shottesbrooke, jobs at different addresses can go on one quote. Send us the addresses and the work at each.

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.

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