Kent · England
Newingreen Sand Mastic
Sand mastic across Newingreen and nearby, with old sealant always removed completely.
- Weathered mastic on the most exposed windows
- Modern sealant on a period surround
- Gaps round a timber door in stone or brick
Sand mastic in Newingreen, done properly
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. If you are dealing with a silicone bead on a sash window that spoils the look and gaps where the frame meets the masonry, we can put it right, on sash and case windows, timber door frames and brick reveals alike.
Homes in small places like Newingreen 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 anything is not right with it, call 0345 464 0079 or drop us an email.
- Place
- Newingreen (CT21)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Aftercare tips
So the new joints stay in good condition:
- Avoid patching sand mastic with silicone
- Clear gutters so water doesn’t pour onto the windows
- Avoid heavy scraping on the mastic joint
- Have rotten timber repaired before new mastic goes in
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall so early renewal protects both.
Landlord and commercial work in Newingreen
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What the job involves on each surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
Leave it or put it right?
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new mastic stays put. Older cottages and farmhouses around Newingreen can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Why Newingreen clients choose us
- Tidy, careful work
- Anti-fungal silicone where joints get wet
- Approved under the ARBOMaster scheme
- Over 20 years’ experience
Newingreen homes and the weather
Newingreen is within about 3 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Westenhanger station change hands often, and any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near Pedlinge Chapel, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Newingreen is about 2 miles north-west of Hythe, in Kent. Newingreen gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 922 towns and villages across Kent, from the larger towns to small villages. There’s also a page for Chelmsford, roughly 51 miles from Newingreen.
Here we cover the CT21 postcode area for sand mastic. You’ll find streets such as Stone Street and Ashford Road. Neighbouring places we cover for sand mastic include Westenhanger (1 mile north), Berwick (1 mile south-west), Lympne (1 mile south-west), Pedlinge (1 mile south-east) and Sandling (1 mile east). Within a short drive, we also cover Ashford (8 miles north-west), Canterbury (13 miles north), Dover (12 miles east), Folkestone (6 miles east), Tower Hamlets (12 miles east) and Hawkinge (6 miles east).
What’s near Newingreen
Typical jobs here are in homes near The Royal Oak Public House, Brockhill Park Performing Arts College and Sandling Park, among other places. For rail, the closest station is Westenhanger station, roughly 0.6 miles north. A little further out are Lympne Castle (1.2 miles south-west) and Royal Victoria Hospital (5.9 miles east). The countryside around Newingreen includes Tolsford Hill and Hatch Park.
Nearby places to Newingreen
Other services in Newingreen
Newingreen questions
Will you come out to Newingreen?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Does the coastal weather in Newingreen affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Do I need permission for sand mastic on a listed building?
Your local planning authority is the one to ask. They’ll tell you if consent is needed for work to your windows.
Do you guarantee sand mastic work?
There’s a 12-month guarantee on every job, sand mastic included.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
How it works
There is not much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for a single window, longer for several, including the tidy-up. For a village or hamlet like Newingreen, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Try not to wet indoor joints just before the visit
- Tell us if parking is tricky
- Tell us about any water getting in
How to get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved.
Related advice
What we are called out for in Newingreen
Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.
If you can see any of these, it’s time to have the joints looked at:
- Mastic round period door frames that has failed
- Weathered mastic on the most exposed windows
- Crumbling sand mastic round a window
- Silicone on a period window that looks wrong
For site and facilities teams at buildings such as Lympne Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- What preparation is included
- Who does the work, and how experienced they are
- What product goes in the joint
- How the colour is chosen