Kent · England

Sand mastic for sash & case windows in Bekesbourne Hill, Kent

We cover Bekesbourne Hill for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.

  • A silicone bead on a sash window that spoils the look
  • Draughty sash windows at the surround
  • Mastic worn away on windows facing the weather

Trusted sand mastic in Bekesbourne Hill

Should I try it myself first?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.

If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

Sand mastic in Bekesbourne Hill, done properly

Traditional burnt sand mastic blends with stone and brick surrounds. It suits period and listed homes, where modern sealant can look out of place. We work on brick reveals, period & listed homes and stone surrounds, and people most often call us about a silicone bead on a sash window that spoils the look and open joints round the window box.

In a village or hamlet like Bekesbourne Hill, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.

We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Bekesbourne Hill (CT4)
Wider area
Kent
Cover
One year on every job
Quote
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026

Keeping the joints in good condition

Aftercare is simple:

  • Have rotten timber repaired before new mastic goes in
  • Ask the planning authority about consent for listed or conservation-area homes
  • Avoid patching sand mastic with silicone
  • Plan mastic work ahead of painting

Leave the new mastic alone while it firms up. It forms a skin fairly soon, but takes longer to harden fully.

Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.

For landlords and businesses

If you manage several properties in or around Bekesbourne Hill, jobs at different addresses can be quoted together. Send us the addresses and the work at each.

In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

Common problems we fix in Bekesbourne Hill

Shallow joints are a common cause. Mastic that is too thin cracks and drops out so we make sure the new mastic is the right thickness.

It’s worth asking for a quote if you see:

  • Cracked mastic round a front door frame
  • Draughty sash windows at the surround
  • Window mastic to renew ahead of painting
  • A silicone bead on a sash window that spoils the look

Rented homes near Bekesbourne station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.

Comparing quotes

  • How long the guarantee is
  • How the surfaces are prepared before sealing
  • Whether they seal over old material or remove it
  • What happens if they find a problem under the old sealant

10 questions to ask before you book

Why it’s worth doing now in Bekesbourne Hill

Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall so renewing it early protects the window. Where a wall is exposed, as many are in small places like Bekesbourne Hill, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and send you a clear quote before work begins.

Why Bekesbourne Hill clients choose us

  • A 12-month guarantee on all work
  • Arbo and Everbuild products
  • Rated 4.9 stars on Google
  • An ARBOMaster approved applicator

Read what affects the cost or what customers say.

What sand mastic looks like in Bekesbourne Hill

Historic houses like Goodnestone Park (about 4.1 miles east) are a reminder that the area around Bekesbourne Hill 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. 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.

In the older streets around Church of St Peter, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you look after a building such as Bridge and Patrixbourne Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.

Bekesbourne Hill is about 3 miles south-east of Canterbury, in Kent. Wherever you are in the CT4 postcode area, we can carry out sand mastic at your property. Across Kent, we cover 922 places, Bekesbourne Hill among them. For nearby work, see our Chelmsford page (43 miles or so).

Postcode districts we cover here for sand mastic: CT4. You’ll find streets such as Bekesbourne Hill and Oakleigh Lane, and we cover them all. Neighbouring places we cover for sand mastic include Patrixbourne (1 mile south), Bekesbourne (1 mile south-east), Bridge (1 mile south-west), Littlebourne (2 miles north-east) and Bishopsbourne (2 miles south). Larger places within reach include Ashford (14 miles south-west), Canterbury (3 miles north-west), Margate (13 miles north-east), Dover (11 miles south-east), Folkestone (12 miles south) and Ramsgate (13 miles north-east).

Near you in Bekesbourne Hill

Locally, jobs take us to homes and businesses close to Chequer's Wood and Old Park and St. Anselm's Catholic School, among other places. Bekesbourne Hill has its own railway station: Bekesbourne station. Other landmarks nearby include Canterbury Roman Museum (2.6 miles north-west) and St Martins Hospital (1.6 miles north-west). For a walk, there’s Blean Woods RSPB Reserve.

Map of Bekesbourne Hill © OpenStreetMap contributors

Honest limits

We will always be straight with you, so here’s what new sealant won’t do:

  • Rotten sashes, sills or window boxes (a joiner’s job)
  • Cracked or broken glass
  • Decisions on consent for listed homes

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before booking.

Joints and surfaces we work on

  • Brick reveals
  • Timber door frames
  • Sash and case windows
  • Stone surrounds
  • Tenement windows
  • Period & listed homes

How the visit works

Once we are on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to a full day, depending on how many windows. In a small place like Bekesbourne Hill, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. Large voids are packed out.
  4. New sand mastic is applied and shaped by hand.
  5. The finish is dressed neatly.

Before we arrive

  • Try not to wet indoor joints just before the visit
  • Mention any parking rules near the property
  • For business premises, tell us about site rules or sign-in

Get a quote

Asking for a quote is easy: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we will come back to you with a quote.

Ask for a quote

Read more

FAQs for Bekesbourne Hill

Can you help a landlord with a rental near Bekesbourne station?

Yes, we work for landlords and letting agents. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.

Is Bekesbourne Hill within the area you cover?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Which is right for my windows, sand mastic or modern sealant?

For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant.

What is sand mastic?

It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.

What do you put in the joint?

We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.

Are you fully insured?

Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.

Can new sealant go over the old?

No. We remove every bit of old sealant first, so the new sealant bonds properly.

Should I try DIY first?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job