West Berkshire · England
Greenham Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Greenham and across West Berkshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic dropping out of the joint
- Mastic round period door frames that has failed
- Old cement repairs round a window that have failed
Sand mastic in Greenham
Across Greenham, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. We work on tenement windows, stone surrounds and brick reveals, and common reasons people get in touch are failed mastic on an exposed elevation and mastic round period door frames that has failed.
In a village or hamlet like Greenham, 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.
Whatever the size of the job, it’s backed by our 12-month guarantee in Greenham and across West Berkshire.
- Place
- Greenham (RG19, RG14)
- Wider area
- West Berkshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. We shape it by hand to follow the stone.
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Look over the window mastic once a year
- Sort the mastic before the decorators arrive
- Take care around the mastic when scraping paint
- Do not run silicone over sand mastic
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look before trying a quick fix.
Sound mastic protects the frame. Failed mastic lets water reach the timber, which can lead to rot.
Places near Greenham
What else we do in Greenham
FAQs for Greenham
Can you help a landlord with a rental near Newbury Racecourse station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Is Greenham in your area for sand mastic?
Yes. Our work covers London and the South East, and Greenham is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Is there any odour?
Sometimes, a little. It fades as the sealant cures.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
How we quote for sand mastic
Jobs vary more than people expect. The main factors:
- The old material and how stubborn it is
- When we can work, for business premises
- How easy the joints are to reach
- The size of the job
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
- Roughly how big the job is
We quote each job on its own. Just ring 0345 464 0079 or drop us an email with the details.
What sand mastic looks like in Greenham
With historic houses such as Shaw House (about 1.9 miles north) nearby, there’s older building stock in the area around Greenham as well as newer homes. Where a home is older, 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like The Willows Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. Homes close to Church of St Mary include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Greenham is about 1 mile south-east of Newbury, in West Berkshire. Jobs in Greenham get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 155 towns and villages across West Berkshire, large and small. There’s also a page for Reading, roughly 15 miles from Greenham.
Every address in RG19 and RG14 is covered for sand mastic. Whether your property is on Water Lane, Greenham Road and Draytons View or anywhere close by, our applicators can take on the job. Neighbouring places we cover for sand mastic include Sandleford (1 mile south-west), Newbury (1 mile north-west), Newtown Common (2 miles south-west), Wash Common (2 miles south-west) and Burghclere Common (2 miles south). Larger places within reach include Burghfield Common (11 miles east), Hungerford (9 miles west), Spencers Wood (15 miles east), Calcot (12 miles east), Lambourn (13 miles north-west) and Burghfield Hill (11 miles east).
Near you in Greenham
In Greenham, that means homes and buildings near St Bartholomew's School, Sandleford Priory and The Old London Apprentice pub, among other places. For rail, the closest station is Newbury Racecourse station, about 0.9 miles north. Nearby you’ll also find West Berkshire Community Hospital (1.5 miles north-east) and Donnington Castle (2.7 miles north-west). The countryside around Greenham includes Audrey's Meadow.
What we cannot put right
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Planning or listed building consent (your local planning authority decides)
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sash cords, weights and draught-proofing of the sashes
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think before you book.
What we seal
- Period & listed homes
- Brick reveals
- Tenement windows
- Sash and case windows
- Stone surrounds
- Timber door frames
Do you need sand mastic in Greenham?
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint and we normally remove them.
Any of these means the joints need attention:
- Draughty sash windows at the surround
- Patchy fillers round a sash window
- Mastic round period door frames that has failed
- Mastic that needs renewing before redecorating
Rented homes near Newbury Racecourse station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Before you book anyone
- Whether you can choose the colour
- How hidden problems are handled
- How the joint is cleaned and prepared
- Who turns up on the day
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes a few hours for a single window, longer for several. Somewhere as small as Greenham, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Clear items away from the joints we are working on
- Mention any parking rules near the property
- Try not to wet indoor joints just before the visit
Get a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
Related advice
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.