Kent · England

Sand Mastic in Selling

Professional sand mastic in and around Selling, with every bit of old sealant taken out first.

  • Draughty sash windows at the surround
  • Mastic round period door frames that has failed
  • Old sand mastic that has cracked, crumbled or fallen out

Book sand mastic in Selling

Sand mastic in Selling, done properly

Burnt sand mastic is a traditional material blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. If you are dealing with cement or filler used on old window joints that has cracked and mastic dropping out of the joint, we can put it right, on period & listed homes, timber door frames and stone surrounds alike.

Mastic can only go onto a dry, clean joint, so window work in Selling is booked around the forecast. Let us know about access to all the frames, upstairs ones included.

A one-year guarantee comes with the work, just as it does everywhere we cover.

Applicator reaching up to seal an external door frame on a sunny day
Location
Selling (ME13)
Wider area
Kent
Guarantee
12 months on all our work
Quotes
A clear quote up front
Phone
0345 464 0079
Updated
26 October 2026

What affects the quote in Selling

You’ll get a clear quote before work begins. It takes into account:

  • Which sealant suits the joint
  • Whether there’s mould to deal with
  • The old material and how stubborn it is
  • Working hours on commercial sites

The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.

Helping us quote

To help us quote quickly, please include:

  • Pictures of the joints, sent by email
  • What’s wrong with the joints now
  • If it’s domestic, commercial or a hotel
  • How many joints, rooms or windows are involved

Getting a quote is simple: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we will take it from there.

Keeping the joints in good condition

To keep the joints looking good and working properly:

  • Plan mastic work ahead of painting
  • Keep modern sealant off the mastic
  • Leave the new mastic unpainted
  • Look over the window mastic once a year

Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.

Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.

Selling: your questions answered

Do you cover Selling for sand mastic?

Yes. We work across London and the South East, and Selling is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.

Do you cover smaller places like Selling?

Yes. Selling 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 do you put in the joint?

Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.

What exactly is sand mastic?

It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.

Can you replace silicone on a period window with sand mastic?

Yes, we do this often. The old silicone has to come out completely so the mastic can sit properly.

Do I have to be there?

Access is agreed with you when the job is booked. For inside work, that normally means someone being in.

What does sand mastic cost?

Size, access and the old material all affect the cost. Ask us for a quote.

Do you do commercial work?

Yes. We can plan bigger jobs in stages.

How the job changes by surface

Period and listed homes

Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.

Sash and case windows

On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.

DIY versus a professional finish

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

Landlords, agents and businesses in Selling

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.

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.

What sand mastic looks like in Selling

Historic houses like Belmont House and Gardens (about 3.4 miles west) are a reminder that the area around Selling 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 is traditional sand mastic. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Managing a site like Selling Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Selling station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to Church of St Mary include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Selling is about 3 miles south-east of Faversham, in Kent. Our applicators cover sand mastic for homeowners, landlords and businesses in Selling and nearby, as part of our work across Kent. Our Kent coverage runs to 922 places, Selling among them. Chelmsford is on our list too, around 37 miles away.

All of ME13 is covered for sand mastic, from the main roads to the quietest streets. We cover properties on Selling Road, Selling Court and Vicarage Lane. Close by, we work in Perrywood (1 mile south), Hogben's Hill (1 mile west), Gushmere (1 mile north), Neames Forstal (1 mile east) and Crouch (1 mile north-east). Further out, we also cover Ashford (9 miles south), Canterbury (7 miles east), Sittingbourne (10 miles north-west), Whitstable (7 miles north-east), Faversham (3 miles north-west) and Herne Bay (11 miles north-east).

Landmarks near Selling

Around Selling, our work takes us to homes and buildings near The White Lion Public House and the streets around them. For rail, the closest station is Selling station, about 0.8 miles north-east of the centre. A little further out are Tower keep castle at Chilham (2.5 miles south-east).

Map of Selling © OpenStreetMap contributors

Why it’s worth doing now in Selling

Draughts round a sash window aren’t always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. In a small place like Selling, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or email us.

Why us?

  • We leave the area clean and tidy
  • 4.9 on Google from 180+ five-star reviews
  • ARBOMaster approved applicator
  • Homes, businesses and hotels

Read what affects the cost or our reviews.

What happens on the day

On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before work begins. The work normally takes anything from a few hours to a full day, depending on how many windows. Somewhere as small as Selling, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First, we look at the surrounds with you and agree what needs doing.
  2. Old, loose mastic is raked out and the joint cleaned.
  3. Deep voids are packed so the mastic is the right thickness.
  4. Sand mastic is mixed and applied by hand, then shaped to the joint.
  5. The mastic is finished to sit tidily against the stone or brick.

Before we arrive

  • Tell us about access, such as stairs, a lift or high-level joints
  • Keep children and pets away from the work area
  • Mention any leaks or damp you’ve noticed

Getting a quote

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.

Get a price

Read more

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