Kent · England

External & façade joints in Throwley Forstal, Kent

External mastic for Throwley Forstal and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.

  • Joints where the bead has come unstuck
  • Old sealant gone brittle and cracked
  • Leaking joints around cladding and façade panels

External mastic for Throwley Forstal homes and businesses

DIY versus a professional finish

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

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.

External mastic for homes and businesses in Throwley Forstal

A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, so it bonds to the two sides only and can stretch. We work on joints between brick and frames, copings & trims and concrete & block, and the jobs we see most are brick movement joints where the sealant has split and joints where the bead has come unstuck.

In a village or hamlet like Throwley Forstal, older cottages and farm buildings often stand in the open, where walls and rooflines take the weather head on. Joints on those walls need a sealant that moves with the building and stays in place.

Each job carries a 12-month guarantee, whatever its size.

Eleven members of the Mr Mastic team standing in front of branded white vans
Place
Throwley Forstal (ME13)
Wider area
Kent
Guarantee
One year on every job
Quote
A clear price before work begins
Telephone
0345 464 0079
Page updated
26 October 2026

What we cannot put right

New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:

  • Damp from another source, such as a leaking gutter or a bridged damp-proof course
  • Movement that is more than a sealant joint can take
  • Cracking across the wall rather than at a joint

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

Where we work in Throwley Forstal

  • Concrete & block
  • Brickwork movement joints
  • Façade panels
  • Copings & trims
  • Joints between brick and frames
  • Render & cladding joints

Why deal with it now?

Resealing a run of joints in one go is usually better than patching one at a time. They’ve weathered the same way and it means sorting access once. Where a wall is exposed, as many are in small places like Throwley Forstal, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.

What you get with us

  • 180+ five-star Google reviews
  • White, clear, grey or another colour, product permitting
  • Quality sealants from Arbo and Everbuild
  • Homes, businesses and hotels

See how sealant jobs are priced and our reviews.

External mastic in Throwley Forstal: local notes

Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Belmont House and Gardens (about 1.1 miles north) are a reminder that the area around Throwley Forstal has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.

Homes close to Church of St Michael and All Angels include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.

Throwley Forstal is about 4 miles south of Faversham, in Kent. If you need external mastic in Throwley Forstal, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Kent from our Crawley base. 922 places in Kent are on our list, large and small. Our Chelmsford page covers work nearby, about 37 miles away.

Work in ME13 works the same way as everywhere else we cover. We also cover Throwley (1 mile north), Badlesmere (1 mile east), Sheldwich (2 miles north-east), Sheldwich Lees (2 miles north-east) and The Valley (2 miles west). Further out, we also cover Maidstone (14 miles west), Ashford (8 miles south), Canterbury (10 miles east), Sittingbourne (8 miles north-west), Whitstable (10 miles north-east) and Faversham (4 miles north).

Landmarks near Throwley Forstal

For rail, the closest station is Selling station, about 4.1 miles east of the centre. Well-known places in the area include Newnham Castle (3 miles north-west).

Map of Throwley Forstal © OpenStreetMap contributors

When to call us in Throwley Forstal

Weeds, moss and debris in a joint are a sign the sealant has gone. Roots and dirt hold water against the wall and make things worse.

Any of these means the joints need attention:

  • Old sealant gone brittle and cracked
  • Movement joints with cracked, split or missing sealant
  • Failed seals between different materials
  • Weeds or debris growing in open joints

If you let a flat or house near Selling station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.

Before you book anyone

  • Who turns up on the day
  • How the joint is cleaned and prepared
  • What the cure time is
  • How the colour is chosen

10 questions to ask before booking

How to look after the new joints

Once the sealant has cured, a few habits help it last:

  • Clear growth from the base of walls and joints
  • Act on the first splits you see
  • Fix overflowing gutters above sealed joints
  • Avoid pressure-washing directly into sealant joints

Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead.

Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.

How the job changes by surface

Brickwork movement joints

Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant.

Cladding and façade panels

Where a cladding system has its own specified sealant, we follow it, or one the system allows. Send us any details you have about the façade.

What happens on the day

A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a few hours to a few days, depending on the length of joint and the access. In a small place like Throwley Forstal, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We start by walking round the building and agreeing the joints and the access.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. The faces are brushed clean and primed where the product requires it.
  4. We fit closed-cell backing rod to control the depth.
  5. We apply the sealant, tool it and check the whole run.

Preparing for the visit

  • On commercial sites, let us know about site rules
  • Where the joints are inside, avoid wetting them before we arrive
  • Mention any leaks or damp you’ve noticed

Get a quote

Getting a quote is simple: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we will take it from there.

Get a price

Related advice

Throwley Forstal: your questions answered

Will you come out to Throwley Forstal?

Yes. Throwley Forstal 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.

Do you work for landlords with property near Selling station?

Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or email us with the details for a clear quote.

What is backing rod for?

We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding.

Do you remove the old sealant?

Yes. All of the old material is cut out and the joint cleaned.

How much does external mastic cost in Throwley Forstal?

We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.

Is the work guaranteed?

Yes. All our work carries a 12-month guarantee.

Do you work for hotels and businesses?

Yes. Larger jobs can be planned room by room or area by area.

How long will you be here?

As a guide, most jobs take anything from a few hours to several days, depending on the building. Bigger jobs take longer.

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