Kent · England
Marshborough Sand Mastic
Sand mastic across Marshborough and nearby, with every bit of old sealant taken out first.
- Mastic dropping out of the joint
- Tired mastic found when preparing windows for paint
- Mastic worn away on windows facing the weather
When something else is needed
We will always be straight with you, so here’s what new sealant will not do:
- Sash cords, weights and draught-proofing of the sashes
- Damaged stone surrounds
- Timber that has rotted
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Brick reveals
- Sash and case windows
- Tenement windows
- Timber door frames
- Period & listed homes
- Stone surrounds
About our sand mastic in Marshborough
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditional guidance is not to paint over it, so ask us before you decorate. We work on brick reveals, tenement windows and timber door frames, and people most often call us about mastic that needs renewing before redecorating and gaps round a timber door in stone or brick.
Around Marshborough, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- Marshborough (CT13)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Marshborough questions
Will you come out to Marshborough?
Yes, Marshborough is covered. 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.
Can you do sand mastic in Marshborough?
Yes. We work across London and the South East, and Marshborough is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do I need to be at home?
That depends on where the joints are. Inside work needs someone to give us access.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
I’m a tenant. Can you help?
Of course. Check with your landlord; we can send the quote to them too.
Can you replace silicone on a period window with sand mastic?
Normally, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
Is the work guaranteed?
Our 12-month guarantee covers every job, sand mastic included.
What affects the cost of sand mastic
We do not publish a price list. The quote depends on:
- Access and height
- The number and length of the joints
- Which sealant suits the joint
- The old material and how stubborn it is
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Whether it’s a home or a business
- The rough size of the job
- How we’d reach the joints
- What’s wrong with the joints now
To get a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
Frames and glazing around Marshborough
Historic houses like Goodnestone Park (about 3.7 miles south-west) are a reminder that the area around Marshborough has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as Sandwich Technology School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Sandwich station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Marshborough is about 5 miles north-west of Deal, in Kent. From the centre of Marshborough to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 922 towns and villages across Kent, large and small. Chelmsford is on our list too, around 48 miles away.
We work across CT13 for sand mastic and the streets around it. Nearby, we also carry out sand mastic in Woodnesborough (1 mile south-east), East Street (1 mile north), Statenborough (1 mile south-east), Felderland (2 miles south-east) and Sandwich (2 miles east). Larger places within reach include Canterbury (10 miles west), Margate (8 miles north-east), Dover (9 miles south), Folkestone (14 miles south-west), Ramsgate (7 miles north-east) and Broadstairs (8 miles north-east).
Near you in Marshborough
Around Marshborough, our work takes us to homes and buildings near Ham Fen and the streets around them. The nearest railway station is Sandwich station, roughly 1.7 miles east. A little further out are White Mill (1.3 miles north-east) and Sandown Castle (4.8 miles south-east). For a walk, there’s Monk's Wall nature reserve.
How the visit works
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. For a village or hamlet like Marshborough, 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.
- 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.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Related advice
Do you need sand mastic in Marshborough?
Timber swells and shrinks with the weather. That movement opens up the mastic joint over time.
Signs it’s time to call us include:
- Silicone on a period window that looks wrong
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
- Patchy fillers round a sash window
In the older streets around Church of St Mary the Virgin, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before you book anyone
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
- How long the guarantee is
- What the cure time is
Places near Marshborough
Other services in Marshborough
What the job involves on each surface
Timber door frames
Doors face weather and wear and the mastic can crack early. We rake it out and renew it.
Stone surrounds
The stone is treated with care when the old mastic comes out.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
If you’re 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.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Have rotten timber repaired before new mastic goes in
- Sort the mastic before the decorators arrive
- Ask the planning authority about consent for listed or conservation-area homes
- Take care around the mastic when scraping paint
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.