Kent · England

Teston Sand Mastic

Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Teston, with a one-year guarantee on every job. Ask us for a quote.

  • Gaps round a timber door in stone or brick
  • Crumbling sand mastic round a window
  • Wind and rain getting in round a sash window

Book sand mastic in Teston

Sand mastic in Teston, done properly

Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. If you have tired mastic found when preparing windows for paint and a silicone bead on a sash window that spoils the look, we can help.

Somewhere as small as Teston, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.

Every job is covered by a one-year guarantee, wherever you are in Kent.

Location
Teston (ME18)
Wider area
Kent
Cover
12 months on all our work
Price
A clear price before we start
Call
0345 464 0079
Page updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

How the job changes by surface

Stone surrounds

The stone is treated with care when the old mastic comes out.

Brick reveals

We rake out the old mastic and pack deep voids before pointing.

Quotes for sand mastic in Teston

We quote each job individually. This is what makes a difference:

  • The number of rooms or windows
  • Whether there’s mould to deal with
  • The old material and how stubborn it is
  • Working hours on commercial sites

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.

What to tell us for a quote

When you call or email, these details help:

  • A few pictures by email, if you can
  • The rough size of the job
  • Where the job is, and your postcode
  • How we’d reach the joints

We don’t publish a price list. Instead, we give you a clear price for your job. To get started, phone 0345 464 0079 or send us an email.

Your questions about sand mastic in Teston

Do you cover Teston for sand mastic?

Yes. Our work covers London and the South East, and Teston is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing.

Will you come out to Teston?

Yes, Teston 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.

How long does sand mastic take to harden?

A skin forms quite soon, but full hardening takes longer. We will explain what to expect before we leave.

Do you guarantee sand mastic work?

You get our 12-month guarantee on every job.

Is it OK to seal over old sealant?

No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.

Do you do commercial work?

Yes. Larger jobs can be planned room by room or area by area to suit the site.

How much does sand mastic cost in Teston?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.

Is it possible to take out silicone and use sand mastic instead?

Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.

What we do, step by step

Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a single window, longer for several. For a village or hamlet like Teston, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. We look at the surrounds with you and agree the joints to renew.
  2. We remove the old, loose mastic.
  3. Deep gaps are packed so the mastic sits at the right depth.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. We dress the finish so it sits neatly against the masonry.

Preparing for the visit

  • Mention any tricky access
  • Mention any leaks or damp you’ve noticed
  • On commercial sites, let us know about site rules

Ask for a quote

To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.

Ask for a quote

Read more

Keeping the joints in good condition

A little care helps the new joints last. Our advice:

  • Renew mastic before redecorating the windows
  • Keep modern sealant off the mastic
  • Inspect the joints round the windows every year or so
  • Avoid heavy scraping on the mastic joint

Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.

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.

What sand mastic looks like in Teston

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.

If you look after a building such as Wateringbury Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s. 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 normally the first place rain gets in.

Teston is about 4 miles west of Maidstone, in Kent. Every kind of property in Teston can book us for sand mastic. Every job comes with our 12-month guarantee. Across Kent, we cover 922 places, and Teston is one of them. You can also see our page for London, about 29 miles away.

Every address in ME18 is covered for sand mastic, from the main roads to the quietest streets. That includes homes and businesses on The Street, Courtlands and Church Street. Nearby, we also carry out sand mastic in Red Hill (1 mile north-west), West Farleigh (1 mile south-east), Wateringbury (1 mile west), Barming Heath (1 mile east) and Hoppers Corner (1 mile east). Within a short drive, we also cover Maidstone (4 miles east), Sittingbourne (14 miles north-east), Sevenoaks (11 miles west), Royal Tunbridge Wells (11 miles south-west), Gravesend (12 miles north) and Tonbridge (8 miles south-west).

What’s near Teston

In Teston, that means homes and buildings near The Wateringbury pub, The Malling School and Quarry Wood and the streets around them. The closest station to Teston is Wateringbury station, about 0.9 miles south-west of the centre. Other landmarks nearby include Oakwood Hospital (2.1 miles north-east) and Teapot Island (2.6 miles south-west).

Map of Teston © OpenStreetMap contributors

Leave it or put it right?

An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. Older cottages and farmhouses around Teston can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.

What you get with us

  • 4.9 on Google from 180+ five-star reviews
  • Quality sealants from Arbo and Everbuild
  • 20+ years of sealant experience
  • Approved under the ARBOMaster scheme

See how sealant jobs are priced or what customers say.

Common problems we fix in Teston

Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.

Keep an eye out for these signs:

  • Gaps round a timber door in stone or brick
  • Tired mastic found when preparing windows for paint
  • Wind and rain getting in round a sash window
  • Gaps between timber frames and stone or brick

Letting a property close to Wateringbury station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.

What to look for in a quote

  • Which colour the sealant will be
  • Whether they seal over old material or remove it
  • What the quote includes, VAT included or not
  • Who does the work, and how experienced they are

Choosing a sealant specialist

Landlord and commercial work in Teston

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.

We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.

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