Kent · England

Sand mastic for sash & case windows in Potters Corner, Kent

Sand mastic across Potters Corner and nearby, with every bit of old sealant taken out first and a 12-month guarantee.

  • Weathered mastic on the most exposed windows
  • Draughts and rain around sash boxes
  • Mastic dropping out of the joint

Trusted sand mastic in Potters Corner

Sand mastic for homes and businesses in Potters Corner

On many period windows, sand mastic looks right and suits the building. Newer frames generally get a flexible sealant instead and we’ll explain which is best for yours. If you are dealing with silicone on a period window that looks wrong and gaps between timber frames and stone or brick, we can help, on period & listed homes, stone surrounds and sash and case windows alike.

Somewhere as small as Potters Corner, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.

All of our work is guaranteed for twelve months, in Potters Corner and everywhere else we cover.

Location
Potters Corner (TN25, TN26)
Wider area
Kent
Cover
12 months on all our work
Quote
A clear price before any work starts
Call
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

DIY versus a professional finish

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.

A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.

Frames and glazing around Potters Corner

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. With historic houses such as Godinton House (about 1.2 miles south-west) nearby, there’s older building stock in the area around Potters Corner as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

If you look after a building such as Goat Lees Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Ashford International station, cracked sand mastic around sash windows lets in the draughts tenants complain about.

Potters Corner is about 2 miles north of Ashford, in Kent. Whether you’re in the middle of Potters Corner or further out, we cover sand mastic for every kind of property. 922 places in Kent are on our list, large and small. We also work in Chelmsford, about 42 miles from Potters Corner.

All of TN25 and TN26 is within our area for sand mastic, from the main roads to the quietest streets. You will find streets such as Kingsland Lane, Sandyhurst Lane and Westwell Lane, and we cover them all. If you’re just outside Potters Corner, we cover Bockhanger (1 mile south-east), Godinton (1 mile south), Westwell (1 mile north), Hothfield (1 mile west) and Kennington (1 mile east). Further out, we also cover Canterbury (12 miles north-east), Sittingbourne (13 miles north-west), Folkestone (15 miles south-east), Whitstable (15 miles north-east), Faversham (10 miles north) and Hythe (12 miles south-east).

Local landmarks in Potters Corner

Typical jobs here are in homes near Ashford Warren and Hoads Wood, Towers School and Sixth Form Centre and The Hayesbrook School. The closest station to Potters Corner is Ashford International station, about 2.2 miles south-east. A little further out are County Square (1.8 miles south-east) and William Harvey Hospital (3.4 miles south-east). Not far away are Hatch Park.

Map of Potters Corner © OpenStreetMap contributors

Do you need sand mastic in Potters Corner?

Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.

The problems people generally mention when they call are:

  • Silicone on a period window that looks wrong
  • Weathered mastic on the most exposed windows
  • Mastic that needs renewing before redecorating
  • Cracked mastic round a front door frame

Godinton House, about 1.2 miles south-west, is one of the historic houses in the wider area around Potters Corner, and older homes nearby need a sealant that suits their walls.

Comparing quotes

  • What insurance they hold
  • Who does the work, and how experienced they are
  • How long to leave it before use
  • What product goes in the joint

How to choose a mastic man

Common questions in Potters Corner

Is Potters Corner in your area for sand mastic?

Yes. We work across London and the South East, and Potters Corner is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear price.

Is Potters Corner within the area you cover?

Yes. Potters Corner is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Is it possible to paint over sand mastic?

Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.

Is there any odour?

It depends on the product. Some products have a noticeable smell, others very little.

How long will you be here?

As a guide, most jobs take anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer, and we will say how long yours will take.

Should I use sand mastic or silicone?

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.

Can tenants book the work?

Of course. Check with your landlord; we can send the quote to them too.

Is consent needed for window work on a listed home?

Check with your local planning authority. They’ll tell you if consent is needed for work to your windows.

Looking after it afterwards

Looking after new joints is easy:

  • Leave the new mastic unpainted
  • Sort the mastic before the decorators arrive
  • Find out about consent before window work on a listed home
  • Look over the window mastic once a year

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

An open joint round the box lets weather through. The longer it’s left, the more the joint opens.

What happens on the day

When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours per window, depending on the condition of the joints. Somewhere like Potters Corner needs a little journey planning: 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.

  1. First we agree which joints need doing.
  2. Old mastic and any loose material are raked out.
  3. We pack any deep voids first.
  4. We apply the mastic by hand and shape it.
  5. The surface is finished to suit the stone or brick.

Preparing for the visit

  • Clear items away from the joints we are working on
  • On commercial sites, let us know about site rules
  • Tell us about any previous sealing or DIY attempts

Ask for a quote

There’s no standard price list. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.

Get a quick quote

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Work for landlords, hotels and businesses

Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.

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

Different surfaces, different methods

Timber door frames

Round a period front door, sand mastic gives the right look.

Period and listed homes

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

What happens if it’s left?

Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in, and renewing the mastic closes them. Older cottages and farmhouses around Potters Corner can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we will explain what it covers.

Why us?

  • Homes, businesses and hotels
  • We leave the area clean and tidy
  • Every job guaranteed for a year
  • Anti-fungal sanitary silicone in wet areas

Take a look at how sealant jobs are priced and customer reviews.

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