Medway · England
Sand mastic for sash & case windows in Lower Stoke, Medway
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Lower Stoke and across Medway. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cement or filler used on old window joints that has cracked
- Draughts and rain around sash boxes
- Gaps round a timber door in stone or brick
How we handle sand mastic in Lower Stoke
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. We’re often asked to deal with open joints round the window box and cement or filler used on old window joints that has cracked, on brick reveals, sash and case windows and timber door frames.
Around Lower Stoke, 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.
Our work is backed for twelve months, in Lower Stoke and everywhere else we cover.
- Place
- Lower Stoke (ME3)
- Wider area
- Medway
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
If you do try it yourself, take your time over the 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.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Surface by surface
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. We renew it the same way as on windows.
How it works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere as small as Lower Stoke, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Move anything stored near the joints
- Tell us if parking is tricky
Get a quote
We don’t publish a price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, phone 0345 464 0079 or send us an email.
Related advice
Windows and doors in Lower Stoke
Lower Stoke is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as Stoke Primary Academy, larger buildings have plenty of frames, and the mastic around each one ages.
Lower Stoke is about 5 miles south-east of Canvey Island, in Medway. Homes, rented property, offices and hotels in Lower Stoke can book us for sand mastic, old or new, large or small. Every job comes with our one-year guarantee. We cover 68 towns and villages across Medway. Chelmsford is on our list too, around 21 miles away.
Jobs for sand mastic in ME3 works the same way as everywhere else we cover. You will find streets such as High Street, Brook Lane and Shepherds Way, all of which we cover. Close by, we work in Middle Stoke (1 mile south), Stoke (1 mile south-west), Allhallows (1 mile north), Allhallows-on-Sea (1 mile north-east) and North Street (2 miles south-west). We also work in nearby towns such as Gillingham (6 miles south-west), Chatham (8 miles south-west), Rochester (7 miles south-west), Rainham (7 miles south), Strood (8 miles south-west) and Luton (7 miles south-west).
Around Lower Stoke
In Lower Stoke, that means homes and buildings near The Ship pub, among other places. The countryside around Lower Stoke includes Bishop Saltings.
When something else is needed
New sealant can’t fix everything, and we will tell you before work begins. Sealant won’t put right:
- Sashes that rattle, stick or will not open
- Damaged stone surrounds
- Timber that has rotted
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Tenement windows
- Timber door frames
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Brick reveals
When to call us in Lower Stoke
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
Any of these means the joints need attention:
- Cracked mastic round a front door frame
- Patchy fillers round a sash window
- Crumbling sand mastic round a window
- Mastic that needs renewing before redecorating
If you live in an older home near Church of St Peter and St Paul, the joint between an old wall and a newer frame is usually the first place rain gets in.
Questions to ask before booking
- How hidden problems are handled
- Is VAT in the price?
- How much experience the applicator has
- What guarantee comes with the work
Landlord and commercial work in Lower Stoke
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Avoid patching sand mastic with silicone
- Sort the mastic before the decorators arrive
- Avoid heavy scraping on the mastic joint
- Leave the new mastic unpainted
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Sound mastic protects the frame. Once it fails, water can sit against the timber and timber that stays wet can rot.
Places near Lower Stoke
Other services in Lower Stoke
Questions from Lower Stoke
Will you come out to Lower Stoke?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Lower Stoke in your area for sand mastic?
Yes, Lower Stoke is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
When will the new mastic be hard?
The surface skins quite quickly, then hardens over a longer period. Timing depends on the weather and the joint.
Can you match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Is it possible to take out silicone and use sand mastic instead?
Yes. The silicone is cut out and the joint cleaned, then point it with sand mastic.