Kent · England
Sand mastic for sash & case windows in Nash, Kent
Sand mastic in Nash from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Weathered mastic on the most exposed windows
- Cracked mastic round a front door frame
- Draughts and rain around sash boxes
Different surfaces, different methods
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Sand mastic for homes and businesses in Nash
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. If you are dealing with cracked mastic round a front door frame and gaps between timber frames and stone or brick, we can put it right.
Somewhere as small as Nash, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Place
- Nash (CT3)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why deal with it now?
New sash windows are a major, costly change and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Around Nash, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- 180+ five-star Google reviews
- Domestic, commercial and hotel work
- Anti-fungal silicone where joints get wet
- Neat joints and a tidy finish
Take a look at how sealant jobs are priced and our reviews.
Nearby places to Nash
What else we do in Nash
When to call us in Nash
Sand mastic slowly weathers. It dries out, cracks and loses its grip from the frame or the masonry.
Any of these means the joints need attention:
- Wind and rain getting in round a sash window
- Old cement repairs round a window that have failed
- Mastic worn away on windows facing the weather
- Gaps where the frame meets the masonry
If you let a flat or house near Adisham station, any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- How long to leave it before use
- Whether the sealant suits the joint
- The length of the guarantee
- What preparation is included
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
What happens on the day
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. For a village or hamlet like Nash, 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.
- 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.
- The finish is dressed neatly.
How to prepare
- Move anything stored near the joints
- For business premises, tell us about site rules or sign-in
- Let us know about stairs, lifts or work at height
Get a quote
We quote each job on its own, so the first step is telling us about yours. Simply call 0345 464 0079 or email us and describe the job.
Read more
Nash questions
Is Nash within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Nash for sand mastic?
Yes, Nash 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 tell us what needs doing, and we will give you a clear price.
How long does the job take?
A typical job takes anything from a few hours to a full day, depending on how many windows. Your quote will say how long we expect yours to take.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish, but they decide.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Sand mastic in Nash: local notes
With historic houses such as Goodnestone Park (about 3 miles south) nearby, there’s older building stock in the area around Nash as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Elmstone Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Nash is about 7 miles east of Canterbury, in Kent. For sand mastic in and around Nash, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Kent. Nash is one of 922 towns and villages in Kent where we work. You can also see our page for Chelmsford, about 45 miles away.
Every address in CT3 is within our area for sand mastic. If you’re just outside Nash, we cover Hoaden (1 mile north-east), Perry (1 mile west), Shatterling (1 mile south-west), Elmstone (1 mile north) and Durlock (1 mile south-east). Within a short drive, we also cover Canterbury (7 miles west), Margate (9 miles north-east), Dover (10 miles south), Folkestone (14 miles south), Ramsgate (8 miles north-east) and Broadstairs (10 miles north-east).
Around Nash
The closest station to Nash is Adisham station, about 3.7 miles south-west. Other landmarks nearby include White Mill (3.6 miles east) and St Martins Hospital (6 miles west). The countryside around Nash includes Monk's Wall nature reserve.
What affects the quote in Nash
Your quote is based on your job. We take into account:
- Whether old sealant or filler has to be cut out
- How much there is to do
- How easy the joints are to reach
- The number of rooms or windows
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, phone 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What to tell us for a quote
Before you ask for a quote, have a think about:
- How we’d reach the joints
- Roughly how big the job is
- The problem you’ve noticed
- Whether it’s a home or a business
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 will talk you through the work and send you a clear quote.
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.