Oxfordshire · England
Sand Mastic in Lyneham
Sand mastic across Lyneham and nearby, with every bit of old sealant taken out first.
- Gaps round a timber door in stone or brick
- Gaps between timber frames and stone or brick
- Mastic that needs renewing before redecorating
Why it’s worth doing now in Lyneham
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new work lasts. Older cottages and farmhouses around Lyneham can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Why book with us
- Old sealant always removed completely
- We’re fully insured
- Approved under the ARBOMaster scheme
- Neat joints and a tidy finish
Read our cost guide and customer reviews.
How we handle sand mastic in Lyneham
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. Common call-outs are for cracked mastic round a front door frame and old cement repairs round a window that have failed, on timber door frames, sash and case windows and tenement windows.
Somewhere as small as Lyneham, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
You get a 12-month guarantee, the same in Lyneham as everywhere else we work.
- Where
- Lyneham (OX7)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Lyneham 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.
Rented homes near Shipton station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Lyneham is about 8 miles north of Carterton, in Oxfordshire. Whether you are in the middle of Lyneham or further out, sand mastic is available for homes and businesses alike. Lyneham is one of 443 places in Oxfordshire we cover. There’s also a page for Oxford, about 18 miles away.
Work in OX7 works the same way as everywhere else we cover. Other places close to Lyneham include Shipton-under-Wychwood (2 miles south), Ascott Earl (2 miles south-east), Ascott-under-Wychwood (2 miles south-east), Ascott d'Oyley (2 miles south-east) and Chilson (3 miles east). We also work in nearby towns such as Witney (8 miles south-east), Carterton (8 miles south), Kidlington (14 miles east), Chipping Norton (5 miles north-east), Woodstock (11 miles east) and Cogges (8 miles south-east).
What’s near Lyneham
For rail, the closest station is Shipton station, roughly 1.1 miles south.
Places near Lyneham
What else we do in Lyneham
Common questions in Lyneham
Can you help a landlord with a rental near Shipton station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Lyneham?
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.
Are you insured?
Yes, we are fully insured for every job we do.
Can I add another job to the visit?
Yes. More than one area can be quoted together.
What guarantee comes with the work?
All our work has a one-year guarantee.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
What affects the cost of sand mastic
The price is agreed before any work begins. It takes into account:
- The type of sealant required
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- The amount of work
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
- A few pictures by email, if you can
- How many joints, rooms or windows are involved
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
How the visit works
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere like Lyneham needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Clear items away from the joints we’re working on
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
Ask for a quote
We quote each job on its own. Just call 0345 464 0079 or drop us an email with the details.
Read more
When something else is needed
New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:
- Sashes that need overhauling
- Planning or listed building consent (your local planning authority decides)
- Cracked or broken glass
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Stone surrounds
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
- Timber door frames
What we’re called out for in Lyneham
Previous repairs in cement or silicone often trap water or crack away. They do not move with the timber, and they generally need raking out.
Any of these means the joints need attention:
- Open joints round the window box
- Failed mastic on an exposed elevation
- Modern sealant on a period surround
- Wind and rain getting in round a sash window
Around Lyneham, as everywhere, sand mastic is only as good as the preparation behind it.
Questions to ask before you book
- Is VAT in the price?
- How long the guarantee is
- Which sealant they’ll use, and why
- Which colour the sealant will be
Surface by surface
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.