West Berkshire · England
Sand Mastic in East Garston
Problem with your window and door surrounds in East Garston? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Old sand mastic that has cracked, crumbled or fallen out
- Window mastic to renew ahead of painting
- Mastic worn away on windows facing the weather
Work for landlords, hotels and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How we handle sand mastic in East Garston
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. We work on period & listed homes, brick reveals and timber door frames, and people most often call us about open joints round the window box and old cement repairs round a window that have failed.
Homes in small places like East Garston often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Where
- East Garston (RG17)
- Wider area
- West Berkshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes anything from a few hours to a full day, depending on how many windows from start to finish. Somewhere like East Garston needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. 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.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
Ask for a quote
Want a quote for sand mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear quote before work begins.
Related advice
Common questions in East Garston
Is sand mastic in East Garston guaranteed?
All our work, in East Garston and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is East Garston in your area for sand mastic?
Yes. We work across London and the South East, and East Garston is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
How long does sand mastic take?
Most jobs take a few hours per window, depending on the condition of the joints, including the preparation. Your quote will say how long we expect yours to take.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover East Garston.
How long does sand mastic take to go off?
Not straight away. It skins first and hardens fully later, and we’ll tell you what to expect.
Towns and villages near East Garston
Other services in East Garston
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Decisions on consent for listed homes
- Decayed frames that need repair
- Broken panes
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly.
What we seal
- Period & listed homes
- Tenement windows
- Brick reveals
- Sash and case windows
- Stone surrounds
- Timber door frames
What affects the quote in East Garston
The price is agreed before any work begins. It’s based on:
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
- When we can work, for business premises
- Access and height
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
To make quoting easier, let us know:
- 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
- The address or postcode of the job
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or send us an email with the details, and pictures are welcome.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Ask us before painting near the mastic
- Plan mastic work ahead of painting
- Go gently near the mastic when preparing windows
- Ask a joiner to look at soft timber first
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Why act early in East Garston
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic matches what was there and that can be important for listed homes. In a small place like East Garston, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why book with us
- An ARBOMaster approved applicator
- Old sealant always removed completely
- Fully insured
- Domestic, commercial and hotel work
Common problems we fix in East Garston
Sand mastic slowly weathers. It dries out, cracks and loses its grip from the frame or the masonry.
Keep an eye out for these signs:
- Mastic dropping out of the joint
- Tired mastic found when preparing windows for paint
- Gaps round a timber door in stone or brick
- Silicone on a period window that looks wrong
In and around East Garston, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- When the joint can take water or movement
- How the joint is cleaned and prepared
- Whether VAT is included
- Whether they seal over old material or remove it
Frames and glazing around East Garston
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of All Saints include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
East Garston is about 7 miles south of Wantage, in West Berkshire. Whether you’re in the middle of East Garston or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. East Garston is one of 155 places in West Berkshire we cover for sand mastic. Oxford is on our list too, around 21 miles away.
Postcode districts we cover here for sand mastic: RG17. You will find streets such as Station Road, Back Street and Humphrey's Lane, all of which we cover. Nearby, we also carry out sand mastic in Eastbury (1 mile west), East Garston Woodlands (1 mile south-west), Great Shefford (2 miles south-east), East Shefford (2 miles south-east) and Shefford Woodlands (2 miles south). Further out, we also cover Newbury (9 miles south-east), Thatcham (11 miles south-east), Speenhamland (9 miles south-east), Hungerford (6 miles south), Lambourn (3 miles north-west) and Shaw (9 miles south-east).
What’s near East Garston
The countryside around East Garston includes Watts Bank.