Kent · England
Mystole Sand Mastic
Professional sand mastic in and around Mystole, with old sealant always removed completely and a 12-month guarantee.
- Old cement repairs round a window that have failed
- Mastic that needs renewing before redecorating
- Mastic round period door frames that has failed
Mystole: your questions answered
Do you cover Mystole for sand mastic?
Yes, Mystole is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Do you cover smaller places like Mystole?
Yes. Mystole is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is the work guaranteed?
You get our 12-month guarantee to all our work.
What should I tell you?
Tell us what needs doing and where. We will ask anything else we need to know.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
How long will you be here?
A typical job takes a few hours for a single window, longer for several, including preparation and clearing up. Your quote will say how long we expect yours to take.
Where are you based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
Sand mastic in Mystole, done properly
Sand mastic suits most period window surrounds. Newer frames generally get a flexible sealant instead and we’ll explain which is best for yours. If you are dealing with tired mastic found when preparing windows for paint and patchy fillers round a sash window, we can help, on tenement windows, stone surrounds and timber door frames alike.
Homes in small places like Mystole 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.
We stand behind the work with a one-year guarantee, so you’re not left on your own once the job is done.
- Where
- Mystole (CT4)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

What affects the cost of sand mastic
The price is agreed before any work begins. It’s based on:
- The product the joint needs
- Working hours on commercial sites
- The old material and how stubborn it is
- Access and height
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Asking for a quote
Before you ask for a quote, have a think about:
- The address or postcode of the job
- What’s wrong with the joints now
- Roughly how big the job is
- A few pictures by email, if you can
For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before any work starts.
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you’re set on DIY, put the effort into 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.
How the job changes by 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 the new mastic goes in.
When it isn’t the sealant
In fairness, there are a few things sealant won’t fix:
- Planning or listed building consent (your local planning authority decides)
- Broken panes
- Timber that has rotted
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Brick reveals
- Period & listed homes
- Stone surrounds
- Tenement windows
- Sash and case windows
- Timber door frames
Also in Mystole
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
Landlords and letting agents in Mystole can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
When to call us in Mystole
Timber frames move with the seasons. That movement opens up the mastic joint over time.
It’s worth asking for a quote if you see:
- Crumbling sand mastic round a window
- Gaps where the frame meets the masonry
- Cement or filler used on old window joints that has cracked
- Wind and rain getting in round a sash window
If you live in an older home near Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- How much experience the applicator has
- How hidden problems are handled
- What preparation is included
- The length of the guarantee
The process
Once we’re on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to a full day, depending on how many windows. Somewhere as small as Mystole, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each window surround and the condition of the joint.
- 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.
Before we arrive
- Let us know about earlier repairs to the joints
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
If you are in Mystole and need sand mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Advice
What sand mastic looks like in Mystole
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.
If you let a flat or house near Chartham station, any sash windows need sound mastic to keep draughts and rain out. Managing a site like Chartham Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Mystole is about 4 miles south-west of Canterbury, in Kent. If you need sand mastic in Mystole, please ring 0345 464 0079 or drop us an email for a quick quote. We cover Kent from our Crawley base. Our area takes in 922 places across Kent, large and small. You can also see our page for Chelmsford, about 41 miles away.
All of CT4 is covered for sand mastic. Local streets include Thruxted Lane and Mystole Lane, all of which we cover. We also cover Shalmsford Street (1 mile east), Chartham (1 mile north-east), Garlinge Green (1 mile south-east), Chartham Hatch (2 miles north) and Petham (2 miles south-east). Within a short drive, we also cover Ashford (9 miles south-west), Canterbury (4 miles north-east), Dover (15 miles south-east), Sittingbourne (13 miles north-west), Folkestone (13 miles south-east) and Whitstable (7 miles north).
What’s near Mystole
We work in homes and buildings around Broadham Down and Cross Keys Public House. Mystole’s nearest station is Chartham station, about 0.9 miles north-east. Nearby you’ll also find Whitefriars Shopping Centre (3.9 miles north-east) and Chilham Castle (1.9 miles west). The countryside around Mystole includes Blean Woods RSPB Reserve.
