Kent · England
Sand Mastic in Chitty
Professional sand mastic in and around Chitty, with every bit of old sealant taken out first and a one-year guarantee.
- A silicone bead on a sash window that spoils the look
- Mastic that needs renewing before redecorating
- Gaps where the frame meets the masonry
Questions from Chitty
Will you come out to Chitty?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is sand mastic in a coastal place like Chitty any different?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are usually the first to need attention.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Should I use sand mastic or silicone?
For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
How we handle sand mastic in Chitty
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. Common call-outs are for gaps between timber frames and stone or brick and patchy fillers round a sash window, on stone surrounds, brick reveals and period & listed homes.
Homes in small places like Chitty 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.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or drop us an email.

- Where
- Chitty (CT3)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Chitty
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
If you manage several properties in or around Chitty, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
What affects the quote in Chitty
You’ll get a clear quote before work begins. It’s based on:
- Whether there’s mould to deal with
- How easy the joints are to reach
- The product the joint needs
- How many areas need sealing
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- A few pictures by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- The rough size of the job
Need a quote? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and send you a clear quote before we start.
Windows and doors in Chitty
Chitty is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Herne Bay station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Homes close to Church of St Mary the Virgin include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Chitty is about 4 miles south-east of Herne Bay, in Kent. We carry out sand mastic for homeowners, landlords and businesses in Chitty and nearby, as part of our work across Kent. Chitty is one of 922 towns and villages in Kent where we work for sand mastic. Chelmsford is on our list too, around 41 miles away.
Work in CT3 works the same way as everywhere else we cover. We also cover Chislet (1 mile west), Hollow Street (1 mile south-west), Boyden Gate (1 mile north-west), Old Tree (1 mile west) and Highstead (1 mile north-west). Larger places within reach include Canterbury (7 miles south-west), Margate (9 miles east), Dover (14 miles south), Ramsgate (9 miles east), Broadstairs (10 miles east) and Whitstable (7 miles west).
Near you in Chitty
Locally, jobs take us to homes and businesses close to Grove Ferry Picnic Area. The nearest railway station is Herne Bay station, roughly 4 miles north-west. A little further out are St Martins Hospital (5.8 miles south-west). Open spaces near Chitty include West Blean and Thornden Woods.
Signs you need sand mastic in Chitty
Timber frames move with the seasons. The movement cracks the mastic little by little.
These are the problems we’re asked about most:
- Mastic that needs renewing before redecorating
- Cracked mastic round a front door frame
- Old cement repairs round a window that have failed
- Gaps where the frame meets the masonry
Managing a site like Chislet Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before you book
- When the joint can take water or movement
- What product goes in the joint
- What insurance they hold
- What guarantee comes with the work
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Why it’s worth doing now in Chitty
Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry, so dealing with it now protects both. Older cottages and farmhouses around Chitty can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why Chitty customers choose us
- Rated 4.9 stars on Google
- Over 20 years’ experience
- Approved under the ARBOMaster scheme
- Fully insured
Take a look at our cost guide or customer reviews.
What happens on the day
At the end, we look at the finished work together. The work normally takes a few hours for a single window, longer for several, depending on how much there is to do. For a village or hamlet like Chitty, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
Getting a quote
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Advice
Also near Chitty
What else we do in Chitty
What the job involves on each surface
Period and listed homes
A traditional finish suits a period property.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
