Buckinghamshire · England
Sand mastic for sash & case windows in Stone, Buckinghamshire
Specialist sand mastic for Stone: careful preparation, the right product and tidy work. Call for a quick quote.
- Mastic worn away on windows facing the weather
- Mastic that needs renewing before redecorating
- Gaps where the frame meets the masonry
Sand mastic for homes and businesses in Stone
We renew sand mastic around sash windows and doors set in stone or brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on tenement windows, period & listed homes and brick reveals, and people most often call us about draughts and rain around sash boxes and a silicone bead on a sash window that spoils the look.
In a village or hamlet like Stone, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
There’s a 12-month guarantee on every job, large or small.
- Location
- Stone (HP17)
- Region
- Buckinghamshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Why it’s worth doing now in Stone
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a small place like Stone, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.
Why Stone clients choose us
- Arbo and Everbuild products
- 20+ years of sealant experience
- 4.9 on Google from 180+ five-star reviews
- Full insurance on every job
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Whether work needs listed building consent
- Sashes that rattle, stick or won’t open
- Masonry that needs repairing
If in doubt, call 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Timber door frames
- Tenement windows
- Sash and case windows
- Stone surrounds
- Period & listed homes
- Brick reveals
Common problems we fix in Stone
Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
Look out for these signs:
- A silicone bead on a sash window that spoils the look
- Cracked mastic round a front door frame
- Old cement repairs round a window that have failed
- Old sand mastic that has cracked, crumbled or fallen out
Managing a site like Stone Church of England Combined School? Then the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What the cure time is
- What insurance they hold
- How long the guarantee is
- Whether they seal over old material or remove it
Nearby places to Stone
Also in Stone
Stone homes and the weather
With historic houses such as Waddesdon Manor (about 4.1 miles north-west) nearby, there’s older building stock in the area around Stone 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. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Aylesbury Vale Parkway station, older sash windows in a rental need their mastic kept sound to keep the weather out. For an older house near a landmark such as Church of St John the Baptist, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Stone is about 2 miles south-west of Aylesbury, in Buckinghamshire. Stone gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Stone is one of 263 towns and villages in Buckinghamshire where we work for sand mastic. You can also see our page for Oxford, about 16 miles away.
We work across HP17 for sand mastic and the streets around it. That includes homes and businesses on Church Way, Raven Forge and Badgers Rise. Other places close to Stone include Hartwell (1 mile east), Fairford Leys (1 mile north-east), Haydon Hill (2 miles north-east), Fleet Marston (2 miles north) and Southcourt (2 miles east). We also work in nearby towns such as High Wycombe (13 miles south), Chesham (13 miles south-east), Buckingham (14 miles north), Amersham (14 miles south-east), Elmhurst (3 miles north-east) and Princes Risborough (6 miles south).
Near you in Stone
In Stone, that means homes and buildings near Sir Henry Floyd Grammar School and The Rose & Crown pub, among other places. The closest station to Stone is Aylesbury Vale Parkway station, roughly 1.9 miles north of the centre. A little further out are Roald Dahl Children's Gallery (2.3 miles north-east) and Dinton Castle (1.2 miles west). Green spaces nearby include Beacon Hill and Snakemoor.
What happens on the day
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Stone, the journey is planned in advance: 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 the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Keep pets and children clear of the area while we work
- Tell us about any water getting in
Get a quote
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Read more
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Your questions about sand mastic in Stone
Do you work for landlords with property near Aylesbury Vale Parkway station?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Do you cover Stone for sand mastic?
Yes, Stone is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
What does sand mastic cost?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or send us an email with a short description of the job.
Are you insured?
Yes. Full insurance covers our work.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. Then ring 0345 464 0079 or drop us an email.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic can sit properly.
What guarantee comes with the work?
There’s a 12-month guarantee on every job.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.