West Berkshire · England
Sand Mastic in Benham Hill
We cover Benham Hill for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Wind and rain getting in round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic round period door frames that has failed
Sand mastic in Benham Hill, 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 a silicone bead on a sash window that spoils the look and old cement repairs round a window that have failed, on timber door frames, sash and case windows and tenement windows.
Homes around Benham Hill range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
All of our work is guaranteed for twelve months, in Benham Hill and everywhere else we cover.
- Place
- Benham Hill (RG14, RG19, RG18)
- Region
- West Berkshire
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
The process
When we arrive, we look over the joints with you first. Surfaces next to the work are protected before work begins. Most jobs take a few hours per window, depending on the condition of the joints. A visit to Benham Hill is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Where the joints are inside, avoid wetting them before we arrive
- Mention any parking rules near the property
Getting a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved and send you a clear quote.
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Towns and villages near Benham Hill
Also in Benham Hill
What we cannot put right
A few problems are outside what sealant work can do:
- Damaged stone surrounds
- Cracked or broken glass
- Sashes that need overhauling
If you are not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Where we work in Benham Hill
- Period & listed homes
- Tenement windows
- Stone surrounds
- Brick reveals
- Timber door frames
- Sash and case windows
How we quote for sand mastic
Every job gets its own quote. This is what makes a difference:
- The product the joint needs
- The old material and how stubborn it is
- Whether there’s mould to deal with
- Whether the work is at height
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What we need to know
You don’t need to know the technical terms. It helps if you can tell us:
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- Whether it has been sealed before
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, call 0345 464 0079 or drop us an email.
What the job involves on each surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Benham Hill: your questions answered
Do you cover smaller places like Benham Hill?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Newbury Racecourse station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we will advise.
Should I use sand mastic or silicone?
We will help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
How do I get a quote for sand mastic in Benham Hill?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Benham Hill homes and the weather
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Shaw House (about 1.2 miles north-west) nearby, there’s older building stock in the area around Benham Hill as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
For site and facilities teams at buildings such as Fir Tree Primary School and Nursery, its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Newbury Racecourse station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Benham Hill is about 1 mile east of Newbury, in West Berkshire. Homes, rented property, offices and hotels in Benham Hill is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. Across West Berkshire, we cover 155 places, Benham Hill among them. There’s also a page for Reading, roughly 14 miles from Benham Hill.
We cover every part of RG14, RG19 and RG18 for sand mastic. Sand mastic is available to properties on Manor Lane, Arkle Avenue and Turnpike Road. Nearby, we also carry out sand mastic in Stone Copse (1 mile north), Ashmore Green (1 mile north-east), Thatcham (1 mile east), Cold Ash (2 miles north-east) and Longlane (3 miles north). Within a short drive, we also cover Burghfield Common (10 miles east), Hungerford (10 miles west), Spencers Wood (14 miles east), Calcot (11 miles east), Lambourn (12 miles north-west) and Burghfield Hill (10 miles east).
Near you in Benham Hill
We work in homes and buildings around Victoria Park, The Swan pub and Trinity School and the streets around them. The nearest railway station is Newbury Racecourse station, roughly 0.8 miles south-west of the centre. A little further out are West Berkshire Community Hospital (under half a mile north) and Donnington Castle (2.2 miles north-west). The countryside around Benham Hill includes Nature Discovery Centre.
Common problems we fix in Benham Hill
Water gets into small cracks in the mastic and pushes it out. Exposed elevations generally fail first.
Most people get in touch when they notice one of these:
- Gaps round a timber door in stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Failed mastic on an exposed elevation
- Patchy fillers round a sash window
Historic houses such as Shaw House, about 1.2 miles north-west, show how far back building around Benham Hill goes, and older homes nearby need a sealant that suits their walls.
What your quote should include
- Whether VAT is included
- How much experience the applicator has
- Which colour the sealant will be
- When the joint can take water or movement
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
How to look after the new joints
A little care helps the new joints last. We recommend:
- Go gently near the mastic when preparing windows
- Have rotten timber repaired before new mastic goes in
- Plan mastic work ahead of painting
- Don’t paint over the new mastic
Leave the new mastic unpainted, as traditional guidance advises. If you are redecorating, ask us first.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.