Kent · England

West Malling Sand Mastic

Sand mastic for West Malling, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Mastic round period door frames that has failed
  • Patchy fillers round a sash window
  • Weathered mastic on the most exposed windows

Sand mastic in West Malling

About our sand mastic in West Malling

Across West Malling, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. If you have weathered mastic on the most exposed windows and open joints round the window box, we can put it right, on timber door frames, brick reveals and sash and case windows alike.

Around West Malling, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.

Whatever the size of the job, it’s backed by our 12-month guarantee.

Location
West Malling (ME19)
Region
Kent
Guarantee
12 months on all our work
Price
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

Aftercare tips

Simple care keeps the joints in good condition. We recommend:

  • Keep sills and gutters clear so water drains away
  • Find out about consent before window work on a listed home
  • Leave the new mastic unpainted
  • Inspect the joints round the windows every year or so

Check the mastic when you check the paintwork. Small cracks are easier to deal with early.

An open joint round the box lets weather through. Left, the gap tends to get bigger.

What sand mastic looks like in West Malling

Historic houses like Old Soar Manor (about 4.2 miles south-west) are a reminder that the area around West Malling has older buildings as well as new. In older buildings, 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.

Homes close to Parish Church of St Mary the Virgin include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. Managing a site like More Park Catholic Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.

West Malling is about 6 miles west of Maidstone, in Kent. For sand mastic in and around West Malling, please phone 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Kent. West Malling is one of 922 towns and villages in Kent where we work for sand mastic. London is on our list too, about 26 miles from West Malling.

Here we cover the ME19 postcode area for sand mastic. If you need sand mastic at a property on High Street, Police Station Road and London Road or a nearby road, we can help. Being close to the A20, West Malling is simple for us to get to. We also cover the places around West Malling: Well Street (1 mile south-east), East Malling (1 mile east), Kings Hill (2 miles south), Ditton (2 miles east) and Red Hill (3 miles south-east). Within a short drive, we also cover Maidstone (6 miles east), Sittingbourne (15 miles east), Dartford (13 miles north-west), Sevenoaks (9 miles west), Royal Tunbridge Wells (12 miles south-west) and Gravesend (9 miles north).

Around West Malling

In West Malling, that means homes and buildings near Manor Park Country Park, The Malling School and The Malling School and the streets around them. For rail, the closest station is West Malling station, about 0.7 miles east of the centre. Well-known places in the area include Coldrum Long Barrow (2.3 miles north-west) and Leybourne Castle (1.1 miles north-east). Green spaces nearby include Burham Down and Blue Bell Hill.

Map of West Malling © OpenStreetMap contributors

What affects the cost of sand mastic

Call for a quick quote. What matters most is:

  • The number of rooms or windows
  • When we can work, for business premises
  • The size of the job
  • Mould in or behind the old joints

Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

What we need to know

Photos help, but a description is a good start. Try to tell us:

  • How many joints, rooms or windows are involved
  • Where the job is, and your postcode
  • The type of property
  • What’s wrong with the joints now

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that is easy.

Do you need sand mastic in West Malling?

Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.

Keep an eye out for these signs:

  • Cracked mastic round a front door frame
  • Mastic worn away on windows facing the weather
  • Gaps between timber frames and stone or brick
  • Tired mastic found when preparing windows for paint

For landlords with property near West Malling station, any sash windows need sound mastic to keep draughts and rain out.

What your quote should include

  • Which colour the sealant will be
  • How long the guarantee is
  • How much experience the applicator has
  • Whether they seal over old material or remove it

Choosing a sealant specialist

Surface by surface

Period and listed homes

On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.

Stone surrounds

Stone openings are rarely perfectly straight, so the gap isn’t the same all the way round. Sand mastic is shaped by hand to suit.

Landlords, agents and businesses in West Malling

For anyone letting property in or around West Malling, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.

We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.

Should I try it myself first?

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.

If you’re 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.

FAQs for West Malling

Can you do sand mastic in West Malling?

Yes. Our work covers London and the South East, and West Malling 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.

Will you come out to West Malling?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Is it worth trying it myself?

You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.

Is the work guaranteed?

Our 12-month guarantee applies to all our work.

Do you take out the old sealant first?

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

Can you seal over the old sealant?

No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.

Can you match the sealant colour?

Yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before any work starts.

Can you do several jobs on one visit?

Yes, we can. Several rooms, windows or areas can go on one quote.

What we do, step by step

On the day, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to a full day, depending on how many windows. A visit to West Malling is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.

  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. Deep voids are packed so the mastic is the right thickness.
  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.

Getting ready for the visit

  • Let us know if you’ve seen damp or leaks
  • Mention any sign-in or site rules at work premises
  • Clear items away from the joints we’re working on

Get a quote

Want a quote for sand mastic? Please ring 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear quote before we start.

Get a quick quote

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