Kent · England

Sand Mastic in Lamberhurst

Window and door surrounds in Lamberhurst need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.

  • Old sand mastic that has cracked, crumbled or fallen out
  • Mastic worn away on windows facing the weather
  • A silicone bead on a sash window that spoils the look

Need sand mastic in Lamberhurst?

What sand mastic looks like in Lamberhurst

With historic houses such as Scotney Castle (about 0.9 miles south-east) nearby, there’s older building stock in the area around Lamberhurst as well as newer homes. 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

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. If you let a flat or house near Wadhurst station, cracked sand mastic around sash windows lets in the draughts tenants complain about.

Lamberhurst is about 6 miles south-east of Royal Tunbridge Wells, in Kent. We provide sand mastic to homeowners, landlords and businesses in Lamberhurst and the surrounding area. Lamberhurst is one of 922 towns and villages in Kent where we work. For nearby work, see our Crawley page (25 miles or so).

All of TN3 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on High Street, Church Road and Clivedon Court or anywhere close by, our applicators can take on the job. Nearby, we also carry out sand mastic in Lamberhurst Quarter (2 miles north-west), Key's Green (3 miles north-west), Petteridge (3 miles north), Brenchley (4 miles north) and Matfield (4 miles north). Further out, we also cover Maidstone (13 miles north-east), Sevenoaks (15 miles north-west), Royal Tunbridge Wells (6 miles north-west), Tonbridge (8 miles north-west), Kings Hill (12 miles north) and Foley Park (14 miles north-east).

What’s near Lamberhurst

In Lamberhurst, that means homes and buildings near Horse And Groom Public House and the streets around them. Lamberhurst’s nearest station is Wadhurst station, about 3.9 miles south-west of the centre. A little further out are Ticehurst House Hospital (3.5 miles south) and Old Scotney Castle (1 mile south-east). Not far away are Bewl Water.

Map of Lamberhurst © OpenStreetMap contributors

Sand mastic for homes and businesses in Lamberhurst

Sand mastic does not last for ever and gaps open up round the frame. Renewing it closes the gap so the surround looks right again. If you are dealing with open joints round the window box and weathered mastic on the most exposed windows, we can help, whatever the surface.

Homes in small places like Lamberhurst often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.

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

Applicator reaching up to seal an external door frame on a sunny day
Location
Lamberhurst (TN3)
Wider area
Kent
Cover
A year, on every job
Quotes
A clear price before work begins
Telephone
0345 464 0079
Updated
26 October 2026

Work for landlords, hotels and businesses

We also work for property managers and facilities teams in Lamberhurst and across Kent. We can quote a run of properties together.

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.

Common questions in Lamberhurst

Is Lamberhurst within the area you cover?

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.

Can you do sand mastic in Lamberhurst?

Yes. We work across London and the South East, and Lamberhurst is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.

What exactly is sand mastic?

It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.

Do you guarantee sand mastic work?

You get our 12-month guarantee on every job.

Do I need permission for sand mastic on a listed building?

Checking first is sensible. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.

Will there be a smell?

That depends on the sealant. Some smell for a while, some hardly at all.

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

Yes, it’s a common request. The old silicone has to come out completely so the mastic can sit properly.

I rent my home. Can I book you?

We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.

Quotes for sand mastic in Lamberhurst

We quote each job individually. These are the things that affect it:

  • Any working-time requirements on site
  • Whether there’s mould to deal with
  • How many rooms, windows or areas are involved
  • Whether the work is at height

A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.

What we need to know

What to tell us when you ask for a quote:

  • What’s wrong with the joints now
  • Where the job is, and your postcode
  • The type of property
  • Whether it has been sealed before

For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work.

The process

The work is kept neat and contained to the joints we’re treating, so you can get on with your day. Expect the work to take a few hours per window, depending on the condition of the joints, and we tell you how long to leave it before we go. In a small place like Lamberhurst, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  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. The sand mastic is mixed and pressed into the joint by hand.
  5. The surface is finished to suit the stone or brick.

Before we arrive

  • Let us know if you’ve seen damp or leaks
  • Let us know about parking restrictions
  • Keep children and pets away from the work area

Ask for a quote

A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.

Ask for a quote

Related advice

Keeping the joints in good condition

Looking after new joints is easy, and it makes a real difference:

  • Check the mastic when you check the paintwork
  • Plan mastic work ahead of painting
  • Ask the planning authority about consent for listed or conservation-area homes
  • Keep modern sealant off the mastic

Leave the new mastic unpainted, as traditional guidance advises. If you’re redecorating, ask us first.

Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.

Why it’s worth doing now in Lamberhurst

Draughts round a sash window aren’t always the sashes. Open mastic joints round the box can let air in and new mastic seals them. In a small place like Lamberhurst, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.

What you get with us

  • Approved under the ARBOMaster scheme
  • We’re fully insured
  • Experience in homes, commercial sites and hotels
  • More than 20 years in sealant work

See how sealant jobs are priced or what customers say.

When something else is needed

A few problems are outside what sealant work can do:

  • Crumbling stone or brickwork round the window
  • Planning or listed building consent (your local planning authority decides)
  • Sash cords, weights and draught-proofing of the sashes

If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer before booking.

What we seal

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

How the job changes by surface

Stone surrounds

Sand mastic sits naturally against stone. The finish blends with the masonry.

Brick reveals

Loose mastic comes out and deep gaps are packed before the new mastic goes in.

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