Kent · England
Sand mastic for sash & case windows in Sandling, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Sandling, backed by a 12-month guarantee. Ask us for a quote.
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
- Old sand mastic that has cracked, crumbled or fallen out
How we handle sand mastic in Sandling
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. If you have crumbling sand mastic round a window and a silicone bead on a sash window that spoils the look, we can help.
In a village or hamlet like Sandling, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Our work is backed for twelve months, in Sandling and everywhere else we cover.
- Where
- Sandling (ME14, ME16, ME20)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Aftercare is simple:
- Make sure water runs off the sill
- Take care around the mastic when scraping paint
- Check with your local planning authority if your home is listed
- Look over the window mastic once a year
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Do you need sand mastic in Sandling?
Rain on the window surround works into any crack and loosens it further. Exposed elevations usually fail first.
Common reasons people contact us are:
- Weathered mastic on the most exposed windows
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic that needs renewing before redecorating
- Draughts and rain around sash boxes
If you let a flat or house near Maidstone East station, any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- Are they insured?
- Which sealant they’ll use, and why
- When the joint can take water or movement
- Whether they seal over old material or remove it
How the visit works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes a few hours for a single window, longer for several, depending on the size of the job. Somewhere as small as Sandling, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
How to prepare
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved before giving you a price.
Related advice
Also near Sandling
Also in Sandling
What sand mastic looks like in Sandling
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. Historic houses like Stoneacre (about 4.2 miles south-east) are a reminder that the area around Sandling has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Homes close to St Paul's Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in. If you look after a building such as Sandling Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Sandling is about 1 mile north-west of Foley Park, in Kent. Across the ME14 area, we can carry out sand mastic at your property. We cover 922 towns and villages across Kent, from the larger towns to small villages. We also work in London, around 30 miles away.
Postcode districts we cover here for sand mastic: ME14, ME16 and ME20. That includes homes and businesses on Lock Lane, Grange Lane and Tyland Lane and the roads around them. Being close to the M20, Sandling is simple for us to get to for sand mastic. Other places close to Sandling include Abbey Gate (1 mile north), Ringlestone (1 mile south), Harbourland (1 mile east), Penenden Heath (1 mile south-east) and Foley Park (1 mile south-east). We also work in nearby towns such as Sittingbourne (10 miles east), Sevenoaks (14 miles west), Gravesend (11 miles north-west), Tonbridge (12 miles south-west), Northfleet (12 miles north-west) and Minster (15 miles north-east).
Near you in Sandling
Locally, jobs take us to homes and businesses close to The Yew Tree pub, Tyland Barn and The Maplesden Noakes School. The closest station to Sandling is Maidstone East station, roughly 1.4 miles south of the centre. Nearby you’ll also find KIMS hospital (2 miles south-east) and Allington Castle (less than half a mile south-west). The countryside around Sandling includes Burham Down and Boxley Hills.
Common questions in Sandling
Do you work for landlords with property near Maidstone East station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Sandling?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you match the sealant colour?
We will suggest a colour to suit the surroundings. The product needed can limit the range.
What’s sand mastic made of?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.
Where are you based?
We work from Crawley. Our applicators cover Sandling.
Is it possible to paint over sand mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, 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.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
How the job changes by surface
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
When it isn’t the sealant
We will always be straight with you, so here’s what sealant cannot fix:
- Decisions on consent for listed homes
- Crumbling stone or brickwork round the window
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
What we seal
- Period & listed homes
- Timber door frames
- Tenement windows
- Brick reveals
- Sash and case windows
- Stone surrounds