Kent · England
Sand mastic for sash & case windows in Allington, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Allington, backed by a 12-month guarantee. Ask us for a quote.
- Gaps between timber frames and stone or brick
- Gaps round a timber door in stone or brick
- Mastic that needs renewing before redecorating
Sand mastic in Allington, done properly
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. If you’re dealing with cracked mastic round a front door frame and cement or filler used on old window joints that has cracked, we can put it right, whatever the surface.
Houses in smaller places like Allington can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.
A one-year guarantee comes as standard, so you’re not left on your own once the job is done.
- Where
- Allington (ME16, ME20, ME14)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes a few hours per window, depending on the condition of the joints from start to finish. In a smaller place like Allington, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- 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 is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Clear the area around the work
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
Ask for a quote
Want a quote for sand mastic? Please phone 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
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What sand mastic looks like in Allington
Historic houses like Stoneacre (about 4.2 miles south-east) are a reminder that the area around Allington has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Barming station? Then any sash windows need sound mastic to keep draughts and rain out. Homes close to St. Nicholas' Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Allington is about 2 miles north-west of Maidstone, in Kent. From the centre of Allington to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Allington is one of 922 towns and villages in Kent we cover. There’s also a page for London, roughly 29 miles from Allington.
Here we cover the ME16, ME20 and ME14 postcode area for sand mastic. Whether your property is on Wyatt Road, Beaver Road and Godwin Road or a nearby road, we can help. Close by, we work in Aylesford (1 mile north-west), Fant (1 mile south), Ditton (2 miles west), East Farleigh (2 miles south) and Kettle Corner (2 miles south-west). Within a short drive, we also cover Sittingbourne (11 miles east), Sevenoaks (13 miles west), Royal Tunbridge Wells (14 miles south-west), Gravesend (11 miles north-west), Tonbridge (11 miles south-west) and Northfleet (12 miles north-west).
Near you in Allington
We work in homes and buildings around St. Simon Stock Catholic School, Whatman Park and Malta Inn, among other places. The nearest railway station is Barming station, about 0.8 miles west. Well-known places in the area include Queen's Own Royal West Kent Regiment Museum (1.3 miles south-east) and Fremlin Walk (1.3 miles south-east). Open spaces near Allington include Burham Down and Boxley Hills.
When it is not the sealant
To be straight with you, some problems need a different trade:
- Sashes that rattle, stick or will not open
- Decisions on consent for listed homes
- Damaged stone surrounds
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Brick reveals
- Period & listed homes
- Stone surrounds
- Timber door frames
- Sash and case windows
- Tenement windows
Why act early in Allington
New mastic over crumbling mastic won’t hold. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Homes in smaller places like Allington can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and give you a clear quote before we start.
Why us?
- We leave the area clean and tidy
- Over 20 years’ experience
- An ARBOMaster approved applicator
- Rated 4.9 stars on Google
Read our cost guide or what customers say.
Common problems we fix in Allington
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.
Look out for these signs:
- Patchy fillers round a sash window
- A silicone bead on a sash window that spoils the look
- Weathered mastic on the most exposed windows
- Tired mastic found when preparing windows for paint
If you look after a building such as Allington Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- How long to leave it before use
- What insurance they hold
- Which sealant they’ll use, and why
- What the quote includes, VAT included or not
Landlords, agents and businesses in Allington
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too in Allington and across Kent. We can quote a run of properties together, and we’re fully insured.
Also near Allington
What else we do in Allington
Aftercare tips
After the cure time, these simple habits help:
- Don’t run silicone over sand mastic
- Check the mastic when you check the paintwork
- Renew mastic before redecorating the windows
- Go gently near the mastic when preparing windows
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Allington questions
Is Allington in your area for sand mastic?
Yes, Allington is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
I let a flat near Barming station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Allington and the rest of Kent.
Is it possible to take out silicone and use sand mastic instead?
Usually, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
Is it OK to seal over old sealant?
No. The old sealant always comes out first.
How long does the job take?
That depends on the amount of work, but as a guide it takes a few hours for a single window, longer for several. We’ll tell you when we quote.
Surface by surface
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.