Kent · England

Sand Mastic in Four Throws

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Four Throws. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Draughts and rain around sash boxes
  • Patchy fillers round a sash window
  • Cracked mastic round a front door frame

Need sand mastic in Four Throws?

How we handle sand mastic in Four Throws

Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. If you have old sand mastic that has cracked, crumbled or fallen out and old cement repairs round a window that have failed, we can help, on brick reveals, stone surrounds and tenement windows alike.

Somewhere as small as Four Throws, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.

All of our work is guaranteed for twelve months.

Applicator reaching up to seal an external door frame on a sunny day
Location
Four Throws (TN18)
Wider area
Kent
Guarantee
A year, on every job
Quote
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026

Keeping the joints in good condition

No joint lasts for ever, but care makes a real difference. A few tips:

  • Have rotten timber repaired before new mastic goes in
  • Renew mastic before redecorating the windows
  • Don’t paint over the new mastic
  • Keep sills and gutters clear so water drains away

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

Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.

Sand mastic in Four Throws: local notes

Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Great Dixter (about 3.9 miles south-east) nearby, there’s older building stock in the area around Four Throws as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

Rented homes near Etchingham station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. In the older streets around Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Four Throws is about 12 miles north of Hastings, in Kent. Four Throws gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 922 towns and villages across Kent. Crawley is on our list too, about 32 miles from Four Throws.

We cover every part of the TN18 postcode area for sand mastic. Sand mastic is available to properties on Rye Road, Foxhole Lane and Conghurst Lane. Neighbouring places we cover for sand mastic include Little Conghurst (1 mile south-west), Pipsden (1 mile north-west), Hawkhurst (1 mile north-west), The Moor (1 mile west) and Sandhurst Cross (1 mile south-east). Larger places within reach include Royal Tunbridge Wells (13 miles north-west), Paddock Wood (11 miles north-west), Tenterden (7 miles east), Southborough (14 miles north-west), Park Wood (14 miles north) and Staplehurst (9 miles north).

Around Four Throws

We work in homes and buildings around Oak And Ivy Public House and Collingwood Nature Reserve and the streets around them. For rail, the closest station is Etchingham station, roughly 4.5 miles south-west of the centre. Other landmarks nearby include Benenden Hospital (4.9 miles north-east).

Map of Four Throws © OpenStreetMap contributors

Landlord and commercial work in Four Throws

If you manage several properties in or around Four Throws, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

FAQs for Four Throws

Is Four Throws within the area you cover?

Yes. Four Throws 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.

I let a flat near Etchingham station. Can you help?

Yes, we work for letting agents and landlords. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.

Can new sealant go over the old?

No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.

Will there be a smell?

Some sealants have a smell while they cure. Ventilation helps.

Do you offer different sealant colours?

In most cases you can choose. We will tell you which colours the right product comes in.

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

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

Do I need to be at home?

That depends on where the joints are. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.

Will it make a mess?

Tidy work is part of the job. We protect what’s around the joints.

What the job involves on each surface

Period and listed homes

Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.

Stone surrounds

Old stone surrounds are often uneven, so the gap isn’t the same all the way round. We shape it by hand to follow the stone.

What affects the cost of sand mastic

For a quick quote, just ask. What matters most is:

  • How much there is to do
  • When we can work, for business premises
  • How much old sealant there is and how hard it is to remove
  • How easy the joints are to reach

What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before we start.

Helping us quote

To make quoting easier, let us know:

  • Where the job is, and your postcode
  • Photos by email, if that’s easy
  • If someone has resealed it before
  • What’s wrong with the joints now

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.

DIY versus a professional finish

The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

The process

At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. In a small place like Four Throws, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We start by checking each surround and agreeing the joints to renew.
  2. Old, loose mastic is raked out and the joint cleaned.
  3. Large voids are packed out first, so the mastic is not too thick.
  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.

Preparing for the visit

  • Tell us if parking is tricky
  • Mention any tricky access
  • Plan for the work area to be out of bounds to pets and children

Ask for a quote

If you’re in Four Throws and need sand mastic, ring 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before work begins.

Get a price

Advice

Common problems we fix in Four Throws

Paint, silicone or cement used over old mastic causes problems. They don’t move with the timber and we normally remove them.

Look out for these signs:

  • Old sand mastic that has cracked, crumbled or fallen out
  • Old cement repairs round a window that have failed
  • Draughty sash windows at the surround
  • Open joints round the window box

For site and facilities teams at buildings such as Hawkhurst Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.

Comparing quotes

  • How the colour is chosen
  • What happens if the job turns out different
  • What insurance they hold
  • How the joint is cleaned and prepared

10 questions to ask before booking

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