Kent · England
Well Street Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Well Street, backed by a one-year guarantee. Ask us for a quote.
- Tired mastic found when preparing windows for paint
- Gaps between timber frames and stone or brick
- A silicone bead on a sash window that spoils the look
Landlord and commercial work in Well Street
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
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 that we can handle for you.
About our sand mastic in Well Street
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 wind and rain getting in round a sash window and cement or filler used on old window joints that has cracked, we can help, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in Well Street is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
All of our work is guaranteed for twelve months.

- Location
- Well Street (ME19)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Period and listed homes
Period homes look their best with traditional materials.
What we do, step by step
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours per window, depending on the condition of the joints. Somewhere like Well Street needs a little journey planning: 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 is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Let us know if you’ve seen damp or leaks
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Simply call 0345 464 0079 or email us and describe the job and send pictures if you have them.
Read more
When to call us in Well Street
Some old mastic was never deep enough. A thin layer doesn’t hold well, which is why we pack deep voids first and get the depth right.
Common reasons people contact us are:
- Mastic dropping out of the joint
- Open joints round the window box
- A silicone bead on a sash window that spoils the look
- Mastic worn away on windows facing the weather
If you look after a building such as The Malling School, larger buildings have plenty of frames, and the mastic around each one ages.
What to look for in a quote
- How long the guarantee is
- What preparation is included
- How much experience the applicator has
- Whether you can choose the colour
Why act early in Well Street
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic suits the building and blends with the stone or brick. Around Well Street, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why Well Street clients choose us
- Homes, businesses and hotels
- We’re fully insured
- Approved under the ARBOMaster scheme
- Anti-fungal sanitary silicone in wet areas
See our cost guide or our reviews.
Common questions in Well Street
Is Well Street within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do sand mastic in Well Street?
Yes. Our work covers London and the South East, and Well Street is part of that. Just ring 0345 464 0079 or email us with a few details of the job.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
How long does the job take?
As a guide, most jobs take a few hours per window, depending on the condition of the joints. Bigger jobs take longer.
What do you need from me for a quote?
A short description and the location, with pictures by email if possible. If we need more, we’ll ask.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Can you quote for more than one area?
Yes, we can. More than one area can go on one quote.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected.
What we can’t put right
Before you book, it’s worth knowing the limits:
- Cracked or broken glass
- Sashes that need overhauling
- Damaged stone surrounds
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Where we work in Well Street
- Stone surrounds
- Tenement windows
- Timber door frames
- Sash and case windows
- Period & listed homes
- Brick reveals
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What a professional job adds is preparation and the right 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.
Nearby places to Well Street
Also in Well Street
Windows and doors in Well Street
London and the South East are among the drier parts 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 Old Soar Manor (about 4.9 miles west) nearby, there’s older building stock in the area around Well Street 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 is traditional sand mastic.
In the older streets around Church of St James, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near East Malling station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Well Street is about 4 miles west of Maidstone, in Kent. Well Street gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 922 towns and villages across Kent. For nearby work, see our London page.
Postcode districts we cover here for sand mastic: ME19. We also cover the places around Well Street: East Malling (1 mile north), West Malling (1 mile north-west), Kings Hill (1 mile south-west), Ditton (1 mile north-east) and Red Hill (2 miles south). We also work in nearby towns such as Maidstone (4 miles east), Sittingbourne (14 miles east), Dartford (14 miles north-west), Sevenoaks (10 miles west), Royal Tunbridge Wells (12 miles south-west) and Gravesend (10 miles north).
Landmarks near Well Street
Around Well Street, our work takes us to homes and buildings near St James the Great Academy, The Rising Sun pub and Manor Park Country Park, among other places. The nearest railway station is East Malling station, about 0.5 miles east. Well-known places in the area include Coldrum Long Barrow (3.5 miles north-west) and Leybourne Castle (1.4 miles north). For a walk, there’s Blue Bell Hill and Burham Down.
