Kent · England
Sand mastic for sash & case windows in Bean, Kent
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Bean, with a 12-month guarantee on every job. Ask us for a quote.
- Old sand mastic that has cracked, crumbled or fallen out
- Weathered mastic on the most exposed windows
- Gaps where the frame meets the masonry
What the job involves on each surface
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Timber door frames
Round a period front door, sand mastic gives the right look.
How we handle sand mastic in Bean
We work across Bean renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand for a neat, traditional finish. Typical jobs include open joints round the window box and failed mastic on an exposed elevation, on period & listed homes, stone surrounds and tenement windows.
In a village or hamlet like Bean, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
We stand behind the work with a 12-month guarantee, so you are covered after we’ve gone.

- Location
- Bean (DA2)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Bean
What else we do in Bean
How to look after the new joints
Simple care keeps the joints in good condition. Our advice:
- Do not run silicone over sand mastic
- Sort the mastic before the decorators arrive
- Take care around the mastic when scraping paint
- Look over the window mastic once a year
Leave the new mastic unpainted, which is the traditional advice. Ask us before any decorating around it.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Bean homes and the weather
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.
For landlords with property near Greenhithe for Bluewater station, cracked sand mastic around sash windows lets in the draughts tenants complain about. If you look after a building such as Bean Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Bean is about 3 miles west of Northfleet, in Kent. Bean gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Bean is one of 922 towns and villages in Kent where we work. London is on our list too, around 17 miles away.
Every address in DA2 is within our area for sand mastic, from the main roads to the quietest streets. That includes homes and businesses on High Street, Drudgeon Way and Foxwood Road. You will find Bean on the B255, so it’s easy for us to get to with everything needed for sand mastic. If you’re just outside Bean, we cover Green Street Green (1 mile south), Westwood (1 mile south-east), Darenth (1 mile west), Swanscombe (1 mile north) and Grubb Street (1 mile south). Within a short drive, we also cover Maidstone (15 miles south-east), Dartford (3 miles north-west), Sevenoaks (11 miles south-west), Gravesend (4 miles east), Northfleet (3 miles east) and Swanley (5 miles south-west).
Around Bean
Locally, jobs take us to homes and businesses close to Beacon Wood Country Park, The Ebbsfleet Academy and The Black Horse pub. The nearest railway station is Greenhithe for Bluewater station, roughly 1.7 miles north. A little further out are Stone Museum of Geology (2.2 miles north-west) and Stone Castle (1.2 miles north). Not far away are Chafford Gorges Nature Park and Sawyers Lake.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Quotes for sand mastic in Bean
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The amount of work
- Mould in or behind the old joints
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
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 make a difference.
What we need to know
There’s no need for technical detail. Just tell us:
- How many joints, rooms or windows are involved
- The type of property
- The problem you’ve noticed
- Whether it has been sealed before
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
How the visit works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. It normally takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Bean, 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.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
Getting a quote
For sand mastic in Bean, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Advice
Landlords, agents and businesses in Bean
We also work for property managers and facilities teams in Bean and across Kent. Several sites can go on one quote, and we are fully insured.
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.
Why act early in Bean
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. Older cottages and farmhouses around Bean can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
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. The price is agreed before we begin.
Why Bean clients choose us
- 20+ years of sealant experience
- Old sealant always removed completely
- 4.9 on Google from 180+ five-star reviews
- Tidy, careful work
FAQs for Bean
Do you cover Bean for sand mastic?
Yes. We work across London and the South East, and Bean is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Do you cover smaller places like Bean?
Yes. Bean is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
What exactly is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
Where are you based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
How much does sand mastic cost in Bean?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
I’m a tenant. Can you help?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Will it make a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.
