Kent · England
Sand Mastic in Calcott
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Calcott, backed by a 12-month guarantee. Ask us for a quote.
- Mastic worn away on windows facing the weather
- Mastic round period door frames that has failed
- Window mastic to renew ahead of painting
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Any mould that needs treating
- How easy the joints are to reach
- When we can work, for business premises
- Which sealant suits the joint
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Helping us quote
To help us quote quickly, please include:
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
- Any access issues, like height or stairs
- What’s wrong with the joints now
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Sand mastic for homes and businesses in Calcott
Across Calcott, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand, finished to suit the masonry. Typical jobs include draughty sash windows at the surround and tired mastic found when preparing windows for paint, on timber door frames, brick reveals and period & listed homes.
Homes in small places like Calcott often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Calcott (CT3)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What sand mastic looks like in Calcott
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.
Letting a property close to Sturry station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Calcott is about 3 miles south of Herne Bay, in Kent. Wherever you are in the CT3 postcode area, we can carry out sand mastic at your property. Our area takes in 922 places across Kent. Our Chelmsford page covers work nearby (40 miles or so).
We cover every part of CT3 for sand mastic and the streets around it. Neighbouring places we cover for sand mastic include Hicks Forstal (1 mile north-east), Broad Oak (1 mile south), Sturry (1 mile south), Herne Common (1 mile north) and Westbere (2 miles south-east). We also work in nearby towns such as Canterbury (3 miles south-west), Margate (12 miles east), Dover (15 miles south-east), Ramsgate (13 miles east), Broadstairs (14 miles east) and Whitstable (4 miles north-west).
Local landmarks in Calcott
Typical jobs here are in homes near Frank Montgomery School, Spires Academy and Curtis Wood and the streets around them. For rail, the closest station is Sturry station, about 1.5 miles south of the centre. Well-known places in the area include Canterbury Castle (3.8 miles south-west) and St Martins Hospital (3.2 miles south). Green spaces nearby include West Blean and Thornden Woods.
Landlord and commercial work in Calcott
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
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.
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to a full day, depending on how many windows. Somewhere like Calcott needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- 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.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Mention any parking rules near the property
- Move anything stored near the joints
Ask for a quote
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.
Related advice
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Make sure water runs off the sill
- Ask the planning authority about consent for listed or conservation-area homes
- Don’t run silicone over sand mastic
- Take care around the mastic when scraping paint
Leave the new mastic alone while it firms up. It skins over quickly but needs longer to fully harden.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
Nearby places to Calcott
Also in Calcott
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.
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.
Calcott: your questions answered
Do you cover Calcott for sand mastic?
Yes. We work across London and the South East, and Calcott is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Will you come out to Calcott?
Yes, Calcott is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or send us an email.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
How long does sand mastic take?
It depends on the size of the job, but most jobs take a few hours per window, depending on the condition of the joints. We’ll tell you when we quote.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll talk you through it.
Is consent needed for window work on a listed home?
Your local planning authority is the one to ask. They decide whether consent is needed for work to your windows.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
What we’re called out for in Calcott
Over the years, sand mastic weathers. It dries out, cracks and loses its grip from the frame or the masonry.
Most people get in touch after spotting one of these:
- Mastic dropping out of the joint
- Window mastic to renew ahead of painting
- Failed mastic on an exposed elevation
- Mastic round period door frames that has failed
For site and facilities teams at buildings such as Sturry Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before booking
- Who does the work, and how experienced they are
- Whether the sealant suits the joint
- How the colour is chosen
- Is the old sealant removed completely?
What happens if it’s left?
New mastic over crumbling mastic won’t hold. Raking out and preparing the joint gives it a sound base so the new work lasts. In a small place like Calcott, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will go through it with you.
Why choose Mr Mastic in Calcott
- Old sealant always removed completely
- We leave the area clean and tidy
- Every job guaranteed for a year
- Domestic, commercial and hotel work
Take a look at what affects the cost or customer reviews.