Kent · England
Goudhurst Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Goudhurst, with a 12-month guarantee on every job. Call for a quick quote.
- Window mastic to renew ahead of painting
- Open joints round the window box
- Mastic round period door frames that has failed
Sand mastic for homes and businesses in Goudhurst
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. Typical jobs include draughty sash windows at the surround and mastic round period door frames that has failed, across stone surrounds, brick reveals and period & listed homes.
In a village or hamlet like Goudhurst, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
A one-year guarantee comes as standard, so you’re covered after we have gone.
- Place
- Goudhurst (TN17)
- Region
- Kent
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
The process
The work is kept neat and contained to the joints we’re treating. Expect the work to take a few hours per window, depending on the condition of the joints, and we explain the cure time before we leave. For a village or hamlet like Goudhurst, the journey is planned in advance: 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 agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Before we arrive
- Tell us if parking is tricky
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
Getting a quote
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Related advice
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Avoid heavy scraping on the mastic joint
- Check with your local planning authority if your home is listed
- Renew mastic before redecorating the windows
- Look over the window mastic once a year
Look at the mastic when you look over the windows. Small cracks are easier to deal with early.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
FAQs for Goudhurst
Can you do sand mastic in Goudhurst?
Yes, Goudhurst is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing.
Can you help a landlord with a rental near Marden station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
What is sand mastic?
Sand plus a binder based on linseed oil. It’s applied by hand and finished to sit neatly against the masonry.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
Can I paint the new mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
What we can’t put right
To be straight with you, some problems need a different trade:
- Whether work needs listed building consent
- Timber that has rotted
- Cracked or broken glass
If in doubt, phone 0345 464 0079 or email us and we will say what we think before booking.
Surfaces we seal
- Tenement windows
- Brick reveals
- Timber door frames
- Period & listed homes
- Stone surrounds
- Sash and case windows
How the job changes by surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
When to call us in Goudhurst
Timber frames move with the seasons. That movement opens up the mastic joint over time.
It’s worth asking for a quote if you see:
- Mastic worn away on windows facing the weather
- Window mastic to renew ahead of painting
- Wind and rain getting in round a sash window
- Gaps round a timber door in stone or brick
Rented homes near Marden station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- How the surfaces are prepared before sealing
- What the cure time is
- Which sealant they’ll use, and why
- Which colour the sealant will be
Places near Goudhurst
Other services in Goudhurst
What affects the quote in Goudhurst
Your quote is based on your job. We take into account:
- Working hours on commercial sites
- The number of rooms or windows
- How easy the joints are to reach
- Whether there’s mould to deal with
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- A few pictures by email, if you can
- If someone has resealed it before
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we will take it from there.
Why it’s worth doing now in Goudhurst
New sash windows are a major, costly change 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 Goudhurst, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
Why Goudhurst customers choose us
- Homes, businesses and hotels
- We are fully insured
- Any old sealant cut out fully, not covered over
- 20+ years of sealant experience
Sand mastic in Goudhurst: local notes
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. Historic houses like Scotney Castle (about 2.6 miles south-west) are a reminder that the area around Goudhurst has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as Goudhurst and Kilndown Church of England Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Homes close to St Mary's Church include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Goudhurst is about 8 miles east of Royal Tunbridge Wells, in Kent. Homes, rented property, offices and hotels in Goudhurst is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. Goudhurst is one of 922 towns and villages in Kent we cover for sand mastic. You can also see our page for Crawley, roughly 28 miles from Goudhurst.
All of TN17 is within our area for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on High Street, Church Road and Back Lane or anywhere close by, we can help. Nearby, we also carry out sand mastic in Smallbridge (1 mile north-west), Brandfold (1 mile north), Broad Ford (1 mile north-west), Capel Cross (2 miles north) and Glassenbury (2 miles south-east). We also work in nearby towns such as Maidstone (11 miles north), Royal Tunbridge Wells (8 miles west), Tonbridge (10 miles north-west), Kings Hill (11 miles north), Foley Park (12 miles north) and Paddock Wood (5 miles north-west).
Landmarks near Goudhurst
Typical jobs here are in homes near The Star And Eagle Hotel and The Gill. For rail, the closest station is Marden station, about 4.5 miles north of the centre. A little further out are Finchcocks Musical Museum (1.6 miles south-west) and Ticehurst House Hospital (5.1 miles south-west). Not far away are Bewl Water.