Kent · England
Shipbourne Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Shipbourne, backed by a one-year guarantee. Ask us for a quote.
- Old cement repairs round a window that have failed
- Window mastic to renew ahead of painting
- Draughts and rain around sash boxes
What we’re called out for in Shipbourne
Over the years, sand mastic weathers. It dries out, cracks and loses its grip from the frame or the masonry.
It’s worth asking for a quote if you see:
- Old cement repairs round a window that have failed
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
- Window mastic to renew ahead of painting
Homes close to Church of St Giles include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- Which sealant they’ll use, and why
- How long to leave it before use
- What insurance they hold
- Whether VAT is included
Sand mastic for homes and businesses in Shipbourne
Traditional burnt sand mastic blends with stone and brick surrounds. It suits period and listed homes, where modern sealant can look out of place. If you have modern sealant on a period surround and mastic round period door frames that has failed, we can put it right.
In a village or hamlet like Shipbourne, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
You get a 12-month guarantee, the same in Shipbourne as everywhere else we work.

- Location
- Shipbourne (TN11)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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 doesn’t work out, we can still put it right.
Also near Shipbourne
What else we do in Shipbourne
FAQs for Shipbourne
Is Shipbourne in your area for sand mastic?
Yes, Shipbourne is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Shipbourne?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
How do I get a quote for sand mastic in Shipbourne?
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 will get a clear quote before work begins.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like but the decision is theirs.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Looking after it afterwards
So the new joints stay in good condition:
- Check the mastic when you check the paintwork
- Check with your local planning authority if your home is listed
- Make sure water runs off the sill
- Ask us before painting near the mastic
Don’t run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
What happens on the day
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Shipbourne, the journey is planned in advance: let us know about lanes, gates and parking. 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.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- On commercial sites, let us know about site rules
- Move anything stored near the joints
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or send us an email.
Related advice
Quotes for sand mastic in Shipbourne
For a quick quote, just ask. The main things that affect it are:
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- The type of sealant required
- How easy the joints are to reach
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What we need to know
There’s no need for technical detail. Just tell us:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- Roughly how big the job is
We quote each job on its own, so start by telling us what you need. Just phone 0345 464 0079 or email us with the details and send pictures if you have them.
Why deal with it now?
Filling over old, loose mastic does not last. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Around Shipbourne, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
- Over 20 years’ experience
What sand mastic looks like in Shipbourne
Historic houses like Ightham Mote (about 1.1 miles north-west) are a reminder that the area around Shipbourne 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. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as Shipbourne School, its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Borough Green & Wrotham station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Shipbourne is about 3 miles north of Tonbridge, in Kent. Anywhere in TN11, our applicators can take on sand mastic. Across Kent, we cover 922 places, Shipbourne among them. There’s also a page for Crawley, about 23 miles away.
We work across the TN11 postcode area for sand mastic and the streets around it. Sand mastic is available to properties on Upper Green Road, Upper Green Lane and Back Lane and the roads around them. Neighbouring places we cover for sand mastic include Budds (1 mile west), Yopps Green (1 mile north), Sheet Hill (2 miles north), Ivy Hatch (2 miles north) and Coldharbour (2 miles south-west). Larger places within reach include Maidstone (11 miles east), Dartford (14 miles north), Sevenoaks (5 miles north-west), Royal Tunbridge Wells (8 miles south), Gravesend (13 miles north) and Tonbridge (3 miles south).
What’s near Shipbourne
Around Shipbourne, our work takes us to homes and buildings near Ivy Hatch Nature Reserve, Hugh Christie Technology College and The Chaser Public House and the streets around them. The closest station to Shipbourne is Borough Green & Wrotham station, about 3.3 miles north. Nearby you will also find Ightham Court (3.3 miles north) and Hadlow Tower museum (2.8 miles south-east). Not far away are Barden Lake.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
