Kent · England
Sand mastic for sash & case windows in Chartham Hatch, Kent
Sand mastic for Chartham Hatch and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Patchy fillers round a sash window
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
About our sand mastic in Chartham Hatch
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on sash and case windows, period & listed homes and brick reveals, and common reasons people get in touch are crumbling sand mastic round a window and mastic that needs renewing before redecorating.
Around Chartham Hatch, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Where
- Chartham Hatch (CT4)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
A few problems are outside what sealant work can do:
- Broken panes
- Masonry that needs repairing
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before you book.
Where we work in Chartham Hatch
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Brick reveals
- Timber door frames
- Tenement windows
Also near Chartham Hatch
Also in Chartham Hatch
Frames and glazing around Chartham Hatch
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of St Mary, the joint between an old wall and a newer frame is usually the first place rain gets in. If you look after a building such as The Canterbury Academy, larger buildings have plenty of frames, and the mastic around each one ages.
Chartham Hatch is about 3 miles west of Canterbury, in Kent. Every kind of property in Chartham Hatch is covered for sand mastic. The work is guaranteed for a year. Our Kent coverage runs to 922 places, and Chartham Hatch is one of them. There’s also a page for Chelmsford, about 39 miles away.
Postcode districts we cover here for sand mastic: CT4. Whether your property is on Town Lane, Nightingale Close and Bigbury Road or anywhere close by, our applicators can take on the job. Neighbouring places we cover for sand mastic include Chartham (1 mile south), Upper Harbledown (1 mile north-east), Shalmsford Street (1 mile south), Mystole (2 miles south) and Thanington (2 miles east). Further out, we also cover Ashford (11 miles south-west), Canterbury (3 miles east), Dover (15 miles south-east), Sittingbourne (13 miles west), Folkestone (14 miles south-east) and Whitstable (6 miles north).
What’s near Chartham Hatch
We work in homes and buildings around Royal Oak Public House and No Man's Orchard and the streets around them. For rail, the closest station is Chartham station, roughly 1 mile south. Other landmarks nearby include Rupert Bear Museum (2.8 miles east) and Eastbridge Hospital of St Thomas the Martyr (2.9 miles east). Open spaces near Chartham Hatch include Blean Woods RSPB Reserve.
What we are called out for in Chartham Hatch
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
Look out for these signs:
- Weathered mastic on the most exposed windows
- Gaps round a timber door in stone or brick
- Gaps where the frame meets the masonry
- Draughts and rain around sash boxes
For landlords with property near Chartham station, any sash windows need sound mastic to keep draughts and rain out.
Questions to ask before booking
- How the surfaces are prepared before sealing
- What happens if the job turns out different
- Whether the sealant suits the joint
- Whether they’re fully insured
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Do not run silicone over sand mastic
- Find out about consent before window work on a listed home
- Keep sills and gutters clear so water drains away
- Leave the new mastic unpainted
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look rather than patching it.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.
Why act early in Chartham Hatch
Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. In a small place like Chartham Hatch, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why Chartham Hatch customers choose us
- We leave the area clean and tidy
- Anti-fungal sanitary silicone in wet areas
- A 12-month guarantee on all work
- More than 20 years in sealant work
Take a look at what affects the cost or customer reviews.
Landlord and commercial work in Chartham Hatch
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Surface by surface
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Timber door frames
Round a period front door, sand mastic gives the right look.
How the visit works
Once we are 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. In a small place like Chartham Hatch, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Read more
Common questions in Chartham Hatch
Is Chartham Hatch within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Chartham station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses.
Can I paint the new mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
What is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.
Can you match the sealant colour?
In most cases you can choose. We will tell you which colours the right product comes in and agree one before any work starts.
What does sand mastic cost?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or email us and tell us what needs doing and where.