Kent · England
Sand mastic for sash & case windows in Stone Cross, Kent
Sand mastic for Stone Cross, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Draughts and rain around sash boxes
- Open joints round the window box
- Window mastic to renew ahead of painting
About our sand mastic in Stone Cross
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. We work on sash and case windows, timber door frames and tenement windows, and the jobs we see most are mastic worn away on windows facing the weather and crumbling sand mastic round a window.
Homes in small places like Stone Cross often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.

- Where
- Stone Cross (TN25)
- Region
- Kent
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we can’t put right
It helps to know what we can’t do too:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Broken panes
- Masonry that needs repairing
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Where we work in Stone Cross
- Tenement windows
- Stone surrounds
- Sash and case windows
- Timber door frames
- Period & listed homes
- Brick reveals
How we quote for sand mastic
You’ll get a clear quote before we start. It’s based on:
- The number of rooms or windows
- The size of the job
- How much old sealant there is and how hard it is to remove
- The type of sealant required
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
Helping us quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- Where the property is
We quote each job on its own. Just ring 0345 464 0079 or send us an email with the details, and pictures are welcome.
What sand mastic looks like in Stone Cross
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.
Around Stone Cross, as everywhere, sand mastic is only as good as the preparation behind it. Rented homes near Ham Street station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Stone Cross is about 4 miles south of Ashford, in Kent. Stone Cross gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Stone Cross is one of 922 places in Kent where we work for sand mastic. You can also see our page for Crawley, about 47 miles away.
Every address in TN25 is within our area for sand mastic, from the main roads to the quietest streets. Local streets include Stone Cross Road and Frith Road. Close by, we work in Bromley Green (2 miles west), Ruckinge (2 miles south), Orlestone (2 miles south-west), Hamstreet (2 miles south-west) and Kenardington (4 miles south-west). Further out, we also cover Ashford (4 miles north), Canterbury (15 miles north-east), Folkestone (12 miles east), Faversham (15 miles north), Hythe (8 miles east) and Preston (15 miles north).
Landmarks near Stone Cross
We work in homes and buildings around Poulton Wood, among other places. The closest station to Stone Cross is Ham Street station, roughly 2.3 miles south-west. Well-known places in the area include William Harvey Hospital (3.5 miles north) and Ashford Designer Outlet (3.1 miles north). Not far away are Orlestone Forest.
What happens on the day
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a single window, longer for several for a typical job. In a small place like Stone Cross, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- 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.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know about parking restrictions
- For business premises, tell us about site rules or sign-in
Get a quote
If you’re in Stone Cross and need sand mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Read more
FAQs for Stone Cross
Will you come out to Stone Cross?
Yes, Stone Cross is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Stone Cross for sand mastic?
Yes. We work across London and the South East, and Stone Cross is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear price.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Can I choose the sealant colour?
Normally, yes. White, clear and grey are common, and other colours are available, and we’ll agree it with you first.
Where are you based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Is the work guaranteed?
You get our one-year guarantee on every job.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little.
Surface by surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Why act early in Stone Cross
Filling over old, loose mastic does not last. Raking out and preparing the joint gives it a sound base so the new mastic stays put. In a small place like Stone Cross, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Approved under the ARBOMaster scheme
- Sanitary silicone with an anti-fungal additive in wet areas
- Old sealant always removed completely
- A 12-month guarantee on all work
See our cost guide and our reviews.
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
How to look after the new joints
To keep the joints looking good and working properly:
- Don’t run silicone over sand mastic
- Do not paint over the new mastic
- Look over the window mastic once a year
- Clear gutters so water doesn’t pour onto the windows
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
