Kent · England
Sand mastic for sash & case windows in Gushmere, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Gushmere. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Mastic worn away on windows facing the weather
- Gaps between timber frames and stone or brick
- Cement or filler used on old window joints that has cracked
About our sand mastic in Gushmere
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. If you have mastic worn away on windows facing the weather and draughty sash windows at the surround, we can put it right.
Around Gushmere, 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.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Gushmere (ME13)
- Region
- Kent
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

What we cannot put right
New sealant can’t fix everything, and we’ll tell you before work begins. It won’t solve:
- Masonry that needs repairing
- Timber that has rotted
- Cracked or broken glass
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Gushmere
- Sash and case windows
- Stone surrounds
- Brick reveals
- Timber door frames
- Period & listed homes
- Tenement windows
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours per window, depending on the condition of the joints, and the area is left clean. Somewhere like Gushmere needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- 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.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
- Mention any tricky access
Get a quote
For sand mastic in Gushmere, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
Advice
Gushmere homes and the weather
Historic houses like Belmont House and Gardens (about 3.6 miles west) are a reminder that the area around Gushmere has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Selling station, cracked sand mastic around sash windows lets in the draughts tenants complain about. For an older house near a landmark such as Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Gushmere is about 3 miles south-east of Faversham, in Kent. Every kind of property in Gushmere is covered for sand mastic. The work is guaranteed for a year. We cover 922 towns and villages across Kent. Our Chelmsford page covers work nearby, about 37 miles away.
Postcode districts we cover here for sand mastic: ME13. If you need sand mastic at a property on Selling Road and Vicarage Lane or anywhere close by, we can help. Neighbouring places we cover for sand mastic include Crouch (1 mile north-east), Selling (1 mile south), Neames Forstal (1 mile south-east), South Street (1 mile east) and Hogben's Hill (1 mile south-west). Larger places within reach include Ashford (10 miles south), Canterbury (7 miles east), Sittingbourne (9 miles north-west), Whitstable (7 miles north-east), Faversham (3 miles north-west) and Herne Bay (11 miles north-east).
Landmarks near Gushmere
Typical jobs here are in homes near The Sondes Arms and Mount Ephraim Gardens. For rail, the closest station is Selling station, roughly 0.6 miles east of the centre. A little further out are Tower keep castle at Chilham (2.9 miles south-east). Green spaces nearby include Blean Woods RSPB Reserve.
Landlords, agents and businesses in Gushmere
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Places near Gushmere
What else we do in Gushmere
Should I try it myself 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, then guaranteed for a year.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Surface by surface
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Common questions in Gushmere
I let a flat near Selling station. Can you help?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Do you cover Gushmere for sand mastic?
Yes, Gushmere is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Can I add another job to the visit?
Yes. More than one area can go on one quote.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We’ll explain what to expect before we leave.
Are you ARBOMaster approved?
Yes. We’re approved under the ARBOMaster scheme.
Where are you based?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll explain our choice.
How do I get a quote for sand mastic in Gushmere?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Signs you need sand mastic in Gushmere
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
Keep an eye out for any of the following:
- Mastic round period door frames that has failed
- Modern sealant on a period surround
- Mastic that needs renewing before redecorating
- Patchy fillers round a sash window
For site and facilities teams at buildings such as Selling Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What preparation is included
- What happens if they find a problem under the old sealant
- Whether all the old sealant comes out first
- Are they insured?
Why act early in Gushmere
Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad and new mastic seals them. In a small place like Gushmere, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before any work starts, so you know where you stand.
What you get with us
- More than 20 years in sealant work
- Anti-fungal silicone where joints get wet
- Trusted Arbo and Everbuild sealants
- We never seal over old sealant
Read our cost guide or customer reviews.
