Kent · England

Sand mastic for sash & case windows in Preston, Kent

Sand mastic for Preston and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.

  • Failed mastic on an exposed elevation
  • Cement or filler used on old window joints that has cracked
  • Open joints round the window box

Sand mastic in Preston

Windows and doors in Preston

Preston is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Schools such as The Abbey School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Faversham station, any sash windows need sound mastic to keep draughts and rain out. Homes close to St Catherine's Church include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.

Preston is about 7 miles south-west of Whitstable, in Kent. We carry out sand mastic for homes and businesses in Preston, as part of our work across Kent. Our Kent coverage runs to 922 places, Preston among them. We also work in Chelmsford, around 34 miles away.

Work in ME13 is quoted and booked the same way as anywhere else. That includes homes and businesses on Back Lane, Quay Lane and Park Road and the roads around them. Preston is on the A2 and A251, so it’s easy for us to get to with everything needed for sand mastic. Other places close to Preston include Faversham (1 mile north-west), The Brents (1 mile north), Davington (1 mile north-west), Ospringe (1 mile west) and Whitehill (1 mile south-west). Within a short drive, we also cover Ashford (12 miles south), Canterbury (8 miles east), Sittingbourne (7 miles west), Whitstable (7 miles north-east), Herne Bay (11 miles east) and Minster (8 miles north-west).

Around Preston

Locally, jobs take us to homes and businesses close to Ethelbert Road Primary School, Oare Meadow and The Elephant pub, among other places. Preston has its own railway station: Faversham station. Other landmarks nearby include Newnham Castle (4.3 miles south-west).

Map of Preston © OpenStreetMap contributors

Sand mastic for homes and businesses in Preston

Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we will talk through which suits your home. We work on brick reveals, stone surrounds and timber door frames, and the jobs we see most are draughts and rain around sash boxes and modern sealant on a period surround.

In smaller places like Preston, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.

All our work is covered by a one-year guarantee, wherever you are in Kent.

Location
Preston (ME13)
Wider area
Kent
Guarantee
A year, on every job
Quotes
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Surface by surface

Stone surrounds

Stone surrounds suit sand mastic well. The finish blends with the masonry.

Period and listed homes

A traditional finish suits a period property, and sand mastic is one of them.

How the visit works

There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to a full day, depending on how many windows. In a smaller place like Preston, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.

  1. We start by checking each surround and agreeing the joints to renew.
  2. We rake out the old mastic and clean the joint.
  3. Large voids are packed out first, so the mastic is not too thick.
  4. We mix the sand mastic and apply it by hand, shaping it to the joint.
  5. The mastic is finished to sit tidily against the stone or brick.

Preparing for the visit

  • Mention any leaks or damp you’ve noticed
  • Tell us about access, such as stairs, a lift or high-level joints
  • Mention if the joints have been sealed before

Ask for a quote

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.

Get a quick quote

Related advice

Why deal with it now?

Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall, so dealing with it now protects both. Around Preston, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.

We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.

Why us?

  • Quality sealants from Arbo and Everbuild
  • Sanitary silicone with an anti-fungal additive in wet areas
  • Every job guaranteed for a year
  • We leave the area clean and tidy

Read our cost guide or what customers say.

What sealant work can’t fix

In fairness, some problems need a different trade:

  • Broken panes
  • Decayed frames that need repair
  • Sash cords, weights and draught-proofing of the sashes

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

Surfaces we seal

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

Preston questions

Do you work for landlords with property near Faversham station?

Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.

Does living near the coast affect sand mastic in Preston?

Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are normally the first to need attention.

What sealant do you use?

It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.

Do you remove the old sealant?

Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.

Is there any odour?

There can be a smell while the sealant cures. Opening a window helps.

Is the work guaranteed?

You get our one-year guarantee to all our work.

Where is Mr Mastic based?

Our base is in Crawley, and we cover South East England, London and all of Scotland.

Are you an approved applicator?

Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.

DIY sealant or a professional job?

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

Work for landlords, hotels and businesses

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

If you manage several properties in or around Preston, several properties can go on one quote. Send us the addresses and the work at each.

What affects the cost of sand mastic

The quote reflects the job in front of us. We look at:

  • How much old sealant there is and how hard it is to remove
  • How much there is to do
  • Access and height
  • Working hours on commercial sites

Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.

Asking for a quote

A few details help us give you an accurate quote. When you get in contact, it helps to mention:

  • How we’d reach the joints
  • Pictures of the joints, sent by email
  • What’s wrong with the joints now
  • Whether it’s a home or a business

Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job.

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