West Berkshire · England
Sand mastic for sash & case windows in Calcot, West Berkshire
Sand mastic for Calcot, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Window mastic to renew ahead of painting
- Weathered mastic on the most exposed windows
- Gaps where the frame meets the masonry
Sand mastic in Calcot, done properly
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on timber door frames, stone surrounds and period & listed homes, and people most often call us about draughty sash windows at the surround and cracked mastic round a front door frame.
In smaller places like Calcot, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Calcot (RG31)
- Wider area
- West Berkshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Calcot
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Do you need sand mastic in Calcot?
Previous repairs in cement or silicone often trap water or crack away. They do not suit the joint, and they normally need raking out.
If you can see any of these, it’s time to have the joints looked at:
- Mastic dropping out of the joint
- Failed mastic on an exposed elevation
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
If you let a flat or house near Theale station, any sash windows need sound mastic to keep draughts and rain out.
Questions to ask before booking
- How long the guarantee is
- How the joint is cleaned and prepared
- What the quote includes, VAT included or not
- Whether all the old sealant comes out first
When something else is needed
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Masonry that needs repairing
- Whether work needs listed building consent
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Surfaces we seal
- Brick reveals
- Stone surrounds
- Period & listed homes
- Timber door frames
- Sash and case windows
- Tenement windows
What affects the cost of sand mastic
We quote each job individually. This is what makes a difference:
- Which sealant suits the joint
- How many areas need sealing
- The old material and how stubborn it is
- The number and length of the joints
Combining jobs into one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
What we need to know
You do not need to know the technical terms. Just tell us:
- Where the job is, and your postcode
- How we’d reach the joints
- Photos by email, if that is easy
- The problem you’ve noticed
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours per window, depending on the condition of the joints and we leave things clean and tidy. Parking around Calcot is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Mention any parking rules near the property
- Let us know about earlier repairs to the joints
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
If you’re in Calcot and need sand mastic, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Advice
Also in Calcot
Calcot homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Mapledurham House (about 3.1 miles north) are a reminder that the area around Calcot 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’s traditional sand mastic.
For site and facilities teams at buildings such as Calcot Infant School and Nursery, larger buildings have plenty of frames, and the mastic around each one ages. Homes close to Church of St Michael include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Calcot is about 3 miles west of Reading, in West Berkshire. Jobs in Calcot get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Calcot is one of 155 towns and villages in West Berkshire where we work.
We work across the RG31 postcode area for sand mastic and the streets around it. Whether your property is on Curtis Road, Barclay Road and Royal Avenue or anywhere close by, our applicators can take on the job. If you’re just outside Calcot, we cover Beansheaf Farm (1 mile south-east), Fords Farm (1 mile east), Horncastle (1 mile east), Little Heath (1 mile north) and Theale (1 mile west). Further out, we also cover Newbury (12 miles west), Thatcham (9 miles west), Burghfield Common (3 miles south), Speenhamland (12 miles west), Spencers Wood (5 miles south-east) and Shaw (12 miles west). As one of the bigger places in West Berkshire, Calcot has every kind of property, from flats to offices.
Around Calcot
Locally, jobs take us to homes and businesses close to Murdochs pub, Little Heath School and Calcot Park. The closest station to Calcot is Theale station, about 1.2 miles south-west of the centre. Nearby you’ll also find Broad Street Mall (3.3 miles east) and Battle Hospital (2.5 miles north-east). Not far away are Moor Copse Nature Reserve and Hosehill Lake.
DIY sealant or a professional job?
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, then guaranteed for a year.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Surface by surface
Stone surrounds
The stone is treated with care while raking out the old mastic.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Calcot: your questions answered
Can you help a landlord with a rental near Theale station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Calcot within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is sand mastic better than silicone for my windows?
We will help you decide. Sand mastic suits many period homes, and modern sealants suit newer frames.
Do you have insurance?
Yes. We’re fully insured for every job we do.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures.
How long does the job take?
A typical job takes anything from a few hours to a full day, depending on how many windows, including preparation and clearing up. We’ll confirm how long when we quote.
Can I paint the new mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.