Kent · England
Sand mastic for sash & case windows in Snargate, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Snargate and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
- Draughts and rain around sash boxes
Sand mastic in Snargate
A silicone bead around a sash window can look out of place and isn’t always the right material. Sand mastic is the traditional choice, and we can replace one with the other. If you have old sand mastic that has cracked, crumbled or fallen out and gaps round a timber door in stone or brick, we can put it right.
Mastic can only go onto a dry, clean joint, so window work in Snargate is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

- Place
- Snargate (TN29)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
Not every filler suits an old window surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. Around Snargate, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why Snargate customers choose us
- Old sealant always removed completely
- 4.9 on Google from 180+ five-star reviews
- Full insurance on every job
- Tidy, careful work
See our cost guide or customer reviews.
How the visit works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a single window, longer for several. Somewhere like Snargate needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
- Mention any tricky access
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
Read more
When it isn’t the sealant
Before you book, it’s worth knowing the limits:
- Timber that has rotted
- Planning or listed building consent (your local planning authority decides)
- Broken panes
If you are not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Snargate
- Period & listed homes
- Tenement windows
- Sash and case windows
- Brick reveals
- Stone surrounds
- Timber door frames
What the job involves on each surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Can I do it myself?
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 doesn’t work out, we can still put it right.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Landlords, agents and businesses in Snargate
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Letting agents and landlords in Snargate can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
What sand mastic looks like in Snargate
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.
Homes close to Church of St Dunstan include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Snargate is about 8 miles south of Ashford, in Kent. Our applicators cover sand mastic for homes and businesses in Snargate and nearby, as part of our work across Kent. Snargate is one of 922 towns and villages in Kent we cover. There’s also a page for Brighton, about 44 miles away.
Work in TN29 is quoted and booked the same way as anywhere else. We cover properties on Short Lane and Snargate Lane. We also cover the places around Snargate: Brenzett (1 mile south-east), Ivychurch (2 miles east), Kenardington (3 miles north-west), Hamstreet (3 miles north) and Ruckinge (4 miles north-east). We also work in nearby towns such as Ashford (8 miles north), Folkestone (15 miles east), Hythe (11 miles east), Hawkinge (15 miles north-east), Tenterden (7 miles north-west) and Cheriton (14 miles east).
Around Snargate
Locally, jobs take us to homes and businesses close to Red Lion pub and the streets around them. For rail, the closest station is Appledore (Kent) station, roughly 1.1 miles north-west of the centre. A little further out are Brenzett Aeronautical Museum (1.6 miles south-east) and Romney 'castle' (3.4 miles south-east). The countryside around Snargate includes Orlestone Forest.
Questions from Snargate
Do you cover smaller places like Snargate?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Appledore (Kent) station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you offer different sealant colours?
Most of the time, yes. We’ll tell you which colours the right product comes in and agree one before any work starts.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
What exactly is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Do you guarantee sand mastic work?
Every job comes with our one-year guarantee.
What we’re called out for in Snargate
Sand mastic slowly weathers. It hardens, cracks and starts to come away on the stone or timber.
It’s worth asking for a quote if you see:
- Gaps between timber frames and stone or brick
- Tired mastic found when preparing windows for paint
- Mastic worn away on windows facing the weather
- Wind and rain getting in round a sash window
Rented homes near Appledore (Kent) station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Before booking anyone
- Is VAT in the price?
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
- How long the guarantee is
