West Berkshire · England

Shaw Sand Mastic

Sand mastic for Shaw, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Cement or filler used on old window joints that has cracked
  • Mastic round period door frames that has failed
  • Modern sealant on a period surround

Need sand mastic in Shaw?

DIY sealant or a professional job?

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

Sand mastic for homes and businesses in Shaw

Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on brick reveals, sash and case windows and period & listed homes, and the jobs we see most are gaps where the frame meets the masonry and old sand mastic that has cracked, crumbled or fallen out.

Around Shaw, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.

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

Applicator reaching up to seal an external door frame on a sunny day
Place
Shaw (RG14, RG18)
Wider area
West Berkshire
Guarantee
One year on every job
Quotes
A clear price before work begins
Call
0345 464 0079
Updated
26 October 2026

Surface by surface

Stone surrounds

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

Brick reveals

Gaps between frame and brick let in rain and draughts. New mastic seals the gap.

Leave it or put it right?

Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. In a smaller place like Shaw, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.

We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or email us and we’ll talk you through it.

What you get with us

  • Sanitary silicone with an anti-fungal additive in wet areas
  • Full insurance on every job
  • Rated 4.9 stars on Google
  • One-year guarantee on every job

See our cost guide or customer reviews.

Landlords, agents and businesses in Shaw

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

Housing providers, facilities teams and property managers book us too in Shaw and across West Berkshire. We can quote a run of properties together, and we’re fully insured for the work.

Frames and glazing around Shaw

With historic houses such as Shaw House (about 0.3 miles north-west) nearby, there’s older building stock in the area around Shaw as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

For site and facilities teams at buildings such as St Joseph's Catholic Primary School, its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as Parish Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Shaw is about 1 mile north-east of Newbury, in West Berkshire. Whether you’re in the middle of Shaw or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. We cover 155 towns and villages across West Berkshire, from the larger towns to small villages. Reading is on our list too, around 15 miles away.

All of RG14 and RG18 is covered for sand mastic. Streets in the area include Park Lane, Shaw Road and Kiln Road. Being close to the A4, Shaw is easy for our applicators to reach for sand mastic. We also cover the places around Shaw: Speenhamland (1 mile west), Donnington (1 mile north-west), Speen (1 mile west), Bagnor (2 miles west) and Stockcross (3 miles west). We also work in nearby towns such as Burghfield Common (11 miles east), Hungerford (9 miles west), Spencers Wood (15 miles east), Calcot (12 miles east), Lambourn (12 miles north-west) and Burghfield Hill (11 miles east). Shaw is among the bigger towns we cover in West Berkshire.

Local landmarks in Shaw

Around Shaw, our work takes us to homes and buildings near Victoria Park, Trinity School and Trinity School, among other places. Shaw’s nearest station is Newbury Racecourse station, about 0.8 miles south-east. Nearby you’ll also find Donnington Castle (1.3 miles north-west) and West Berkshire Community Hospital (1 mile east). Open spaces near Shaw include Audrey's Meadow.

Map of Shaw © OpenStreetMap contributors

Honest limits

We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:

  • Damaged stone surrounds
  • Decayed frames that need repair
  • Planning or listed building consent (your local planning authority decides)

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

Joints and surfaces we work on

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

Shaw questions

I let a flat near Newbury Racecourse station. Can you help?

Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can ring 0345 464 0079 or send us an email with the details for a clear quote.

Can you do sand mastic in Shaw?

Yes, Shaw is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.

Is the work guaranteed?

Every job comes with our one-year guarantee, and we are fully insured.

Is there any odour?

Possibly a little. Any smell clears as the sealant cures, and ventilation helps.

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

It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or send us an email with a short description of the job.

Can you replace silicone on a period window with sand mastic?

Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.

How long will you be here?

That depends on how much there is to do, but most jobs take a few hours per window, depending on the condition of the joints. We’ll tell you when we quote.

Can new sealant go over the old?

No, and we never do. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.

What we do, step by step

All our tools and materials come with us in the van. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours per window, depending on the condition of the joints. For a job in Shaw, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.

  1. Each surround is checked first.
  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. We finish the mastic to a tidy line.

Preparing for the visit

  • Mention any sign-in or site rules at work premises
  • Mention any leaks or damp you’ve noticed
  • Move anything stored near the joints

Getting a quote

There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.

Get a price

Related advice

What we are called out for in Shaw

Over the years, sand mastic weathers. It hardens, cracks and starts to come away on the stone or timber.

The most common problems we see are:

  • Silicone on a period window that looks wrong
  • Mastic dropping out of the joint
  • Open joints round the window box
  • Gaps round a timber door in stone or brick

Rented homes near Newbury Racecourse station change hands often, and any sash windows need sound mastic to keep draughts and rain out.

Before booking anyone

  • Whether they seal over old material or remove it
  • What preparation is included
  • What product goes in the joint
  • Who turns up on the day

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