Kent · England
Sand Mastic in Great Chart
Sand mastic in Great Chart from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Mastic worn away on windows facing the weather
- Silicone on a period window that looks wrong
- Wind and rain getting in round a sash window
Sand mastic for homes and businesses in Great Chart
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. If you are dealing with mastic round period door frames that has failed and open joints round the window box, we can put it right.
Mastic can only go onto a dry, clean joint, so window work in Great Chart is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months.
- Place
- Great Chart (TN23)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
What we are called out for in Great Chart
Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
People normally contact us after spotting something like this:
- Open joints round the window box
- Patchy fillers round a sash window
- Wind and rain getting in round a sash window
- Cracked mastic round a front door frame
Rented homes near Ashford International station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- How much experience the applicator has
- Whether you can choose the colour
- Is VAT in the price?
- Whether all the old sealant comes out first
What affects the quote in Great Chart
The quote reflects the job in front of us. We take into account:
- The product the joint needs
- Any working-time requirements on site
- The number and length of the joints
- How easy the joints are to reach
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- How many joints, rooms or windows are involved
- Where the property is
- Any previous sealing or DIY work
- Any access issues, like height or stairs
Want a quote for sand mastic? Please call 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
FAQs for Great Chart
Is Great Chart in your area for sand mastic?
Yes. Our work covers London and the South East, and Great Chart is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Do you work for landlords with property near Ashford International station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Is it possible to take out silicone and use sand mastic instead?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
How long does sand mastic take to go off?
The surface skins quite quickly, then hardens over a longer period. Timing depends on the weather and the joint.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses, and we are fully insured.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Is the work guaranteed?
Our 12-month guarantee applies to all our work.
Why act early in Great Chart
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Where a wall is exposed, as many are in small places like Great Chart, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
Why Great Chart clients choose us
- Trusted Arbo and Everbuild sealants
- Approved under the ARBOMaster scheme
- We never seal over old sealant
- Full insurance on every job
Read what affects the cost or what customers say.
What we cannot put right
A few problems are outside what sealant work can do:
- Damaged stone surrounds
- Whether work needs listed building consent
- Rotten sashes, sills or window boxes (a joiner’s job)
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
Where we work in Great Chart
- Stone surrounds
- Tenement windows
- Sash and case windows
- Period & listed homes
- Brick reveals
- Timber door frames
Windows and doors in Great Chart
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Godinton House (about 1.1 miles north) nearby, there’s older building stock in the area around Great Chart as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Great Chart Primary School, the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Great Chart is about 1 mile west of Ashford, in Kent. Our applicators cover sand mastic for homes and businesses in Great Chart and the surrounding area, as part of our work across Kent. We cover 922 towns and villages across Kent, from the larger towns to small villages. You can also see our page for Crawley, roughly 44 miles from Great Chart.
Jobs for sand mastic in TN23 is quoted and booked the same way as anywhere else. Sand mastic is available to properties on The Street, Toke Close and The Paddocks and the roads around them. Neighbouring places we cover for sand mastic include Godinton (1 mile north-east), Chilmington Green (1 mile south-west), Stanhope (1 mile south-east), Ashford (1 mile east) and Fleeden (1 mile south-west). We also work in nearby towns such as Canterbury (14 miles north-east), Sittingbourne (14 miles north), Folkestone (15 miles east), Faversham (12 miles north), Hythe (12 miles south-east) and Davington (12 miles north).
What’s near Great Chart
Locally, jobs take us to homes and businesses close to The Little Black Dog pub, Ashford Community Woodland and John Wallis Academy, among other places. The closest station to Great Chart is Ashford International station, roughly 1.8 miles east of the centre. Nearby you will also find County Square (1.6 miles east) and William Harvey Hospital (3.5 miles east). The countryside around Great Chart includes Orlestone Forest.
How the visit works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours for a single window, longer for several from start to finish. In a small place like Great Chart, access is normally the main thing to plan. 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.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Tell us about any water getting in
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
Read more
Nearby places to Great Chart
What else we do in Great Chart
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Leave the new mastic unpainted
- Keep sills and gutters clear so water drains away
- Get any rot dealt with first
- Check with your local planning authority if your home is listed
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.