Surrey · England
The Sands Sand Mastic
Our applicators work in The Sands on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Gaps where the frame meets the masonry
- Tired mastic found when preparing windows for paint
- Failed mastic on an exposed elevation
Sand mastic for homes and businesses in The Sands
Sand mastic does not last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. If you have window mastic to renew ahead of painting and gaps between timber frames and stone or brick, we can help, whatever the surface.
Somewhere as small as The Sands, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
A 12-month guarantee comes as standard.
- Location
- The Sands (GU10)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Common problems we fix in The Sands
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint, and they normally need raking out.
Keep an eye out for any of the following:
- Silicone on a period window that looks wrong
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps where the frame meets the masonry
- Window mastic to renew ahead of painting
If you live in an older home near The Church of the Good Shepherd, the joint between an old wall and a newer frame is generally the first place rain gets in.
Questions to ask before you book
- How the joint is cleaned and prepared
- What the cure time is
- How the colour is chosen
- Is the old sealant removed completely?
What happens if it’s left?
An open joint round the frame lets weather in. Water can get to the frame and the masonry so renewing it early protects the window. Where a wall is exposed, as many are in small places like The Sands, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will explain what it covers.
Why book with us
- 4.9 on Google from 180+ five-star reviews
- Every job guaranteed for a year
- Trusted Arbo and Everbuild sealants
- Any old sealant cut out fully, not covered over
Take a look at what affects the cost and what customers say.
Frames and glazing around The Sands
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. With historic houses such as Farnham Castle (about 2.8 miles west) nearby, there’s older building stock in the area around The Sands as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Schools such as South Farnham School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Farnham station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
The Sands is about 2 miles east of Farnham, in Surrey. Whether you are in the middle of The Sands or further out, we cover sand mastic for every kind of property. The Sands is one of 395 places in Surrey we cover. You can also see our page for Reading, roughly 19 miles from The Sands.
Work in GU10 works the same way as everywhere else we cover. Streets in the area include The Green, Binton Lane and Botany Hill, all of which we cover. Close by, we work in Runfold (1 mile west), Sandy Cross (1 mile north), Compton (1 mile west), Seale (1 mile north-east) and Tongham (2 miles north). Further out, we also cover Guildford (8 miles east), Woking (10 miles north-east), Camberley (9 miles north), Frimley (7 miles north), Haslemere (9 miles south) and Cranleigh (12 miles south-east).
Near you in The Sands
Around The Sands, our work takes us to homes and buildings near Crooksbury Hill. The nearest railway station is Farnham station, roughly 2.3 miles west. Well-known places in the area include Milford Hospital (5.7 miles south-east) and Farnham Castle (2.8 miles west). Open spaces near The Sands include Culverswell Hill and Runfold Wood.
Also near The Sands
More services for The Sands
Surface by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is normally favoured.
Stone surrounds
Stone openings are rarely perfectly straight, so the gap is not the same all the way round. We shape it by hand to follow the stone.
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Make sure water runs off the sill
- Ask the planning authority about consent for listed or conservation-area homes
- Don’t run silicone over sand mastic
- Leave the new mastic unpainted
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
What affects the quote in The Sands
Call for a quick quote. The main things that affect it are:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- The size of the job
- When we can work, for business premises
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- Where the job is, and your postcode
- Any previous sealing or DIY work
- What’s wrong with the joints now
- How we’d reach the joints
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or send us an email.
Common questions in The Sands
Is The Sands within the area you cover?
Yes. The Sands is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is The Sands in your area for sand mastic?
Yes. We work across London and the South East, and The Sands is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear quote.
Are you insured?
Yes. Full insurance covers our work.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.
What’s sand mastic made of?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Should I check with the council before work on a listed or conservation-area home?
Checking first is sensible. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
Where do you work from?
Our base is Crawley. We work across South East England, London and Scotland.
How do I get a quote for sand mastic in The Sands?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Work for landlords, hotels and businesses
We work for letting agents and landlords as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
How the visit works
On the day, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. Most jobs take anything from a few hours to a full day, depending on how many windows. In a small place like The Sands, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
Getting ready for the visit
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.