Kent · England

External & façade joints in Brook, Kent

Sealing brickwork movement joints, render, cladding and façade joints for Brook, backed by a 12-month guarantee. Ask us for a quote.

  • Failed seals between different materials
  • Weathered mastic that no longer stretches
  • Sealant pulling away from one side of the joint

Trusted external mastic in Brook

About our external mastic in Brook

We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing. If you’re dealing with movement joints filled with mortar instead of sealant and weathered mastic that no longer stretches, we can put it right, whatever the surface.

External sealant needs dry, clean surfaces, so work around Brook is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.

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

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Brook (TN25)
Region
Kent
Cover
12 months on all our work
Price
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

How it works

There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the work takes anything from a few hours to several days, depending on the building in most cases. For a village or hamlet like Brook, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We start by checking each joint, agreeing the ones to redo and how we will reach them.
  2. Old sealant and any debris are cut and raked out.
  3. Both sides are cleaned back to sound material and primed if needed.
  4. We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
  5. A flexible exterior sealant is applied and tooled in a colour to suit the wall.

Before we arrive

  • Keep pets and children clear of the area while we work
  • Move anything stored near the joints
  • Let us know about parking restrictions

Get a quote

We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details and send photos if you have them.

Get a quick quote

Related advice

Brook: your questions answered

Do you cover smaller places like Brook?

Yes. Brook 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 Wye station?

Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.

Can you match the colour of my brickwork?

We choose a sealant colour to suit the brick, stone or render so the joint blends in. Exterior sealants come in a good range of colours.

What do you need from me for a quote?

The location, the problem and the rough size of the job. Photos by email help too.

What sealant do you use?

We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.

Can I do it myself?

It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.

Are you ARBOMaster approved?

Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.

Can you work on commercial sites?

Yes. We have worked for hotels, offices and other businesses, and we are fully insured.

Should I try it myself first?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.

How we quote for external mastic

There’s no set price list, because jobs vary so much. What we look at:

  • Whether the work is at height
  • Whether old sealant or filler has to be cut out
  • Any mould that needs treating
  • The size of the job

Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.

Helping us quote

To make quoting easier, let us know:

  • How we’d reach the joints
  • What the problem is, such as mould, gaps, leaks or cracking
  • The address or postcode of the job
  • A few pictures by email, if you can

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.

Different surfaces, different methods

Copings and trims

Metal and stone copings both move with temperature, so a flexible sealant suits them best in all weathers.

Brickwork movement joints

Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so its sealant has to stay flexible.

Landlords, agents and businesses in Brook

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.

We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for.

When to call us in Brook

Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.

Most people get in touch when they notice something like this:

  • Damp patches traced to an open external joint
  • Panel joints letting water in
  • Joints pointed up with cement by mistake
  • Sealant pulling away from one side of the joint

Managing a site like Brook Community Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.

Comparing quotes

  • Whether they’re fully insured
  • Whether VAT is included
  • What the cure time is
  • Whether the sealant suits the joint

10 questions to ask before you book

Outside joints around Brook

London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you let a flat or house near Wye station, outside joints that have cracked can let damp into a rental, so check them between lets. For an older house near a landmark such as Church of St Mary, an extension built onto an older house moves differently, and the joint between them takes the strain.

Brook is about 4 miles east of Ashford, in Kent. If you need external mastic in Brook, please call 0345 464 0079 or send us an email for a quick quote. We cover Kent from our Crawley base, Brook included. Our area takes in 922 places across Kent, large and small. You can also see our page for Chelmsford, roughly 45 miles from Brook.

Our applicators cover all of TN25 for external mastic. Whether your property is on The Street, Troy Town Lane and Stonebridge or anywhere close by, we can help. Neighbouring places we cover for external mastic include Folly Town (1 mile east), Wye (2 miles north-west), Hinxhill (2 miles south-west), Hastingleigh (2 miles east) and Hassell Street (2 miles north-east). Within a short drive, we also cover Ashford (4 miles west), Canterbury (10 miles north-east), Dover (15 miles east), Folkestone (11 miles south-east), Whitstable (14 miles north) and Faversham (11 miles north).

Near you in Brook

Typical jobs here are in homes near Wye School, among other places. For rail, the closest station is Wye station, about 2 miles north-west. Well-known places in the area include William Harvey Hospital (2.4 miles south-west) and County Square (3.9 miles west). Green spaces nearby include Hatch Park.

Map of Brook © OpenStreetMap contributors

What happens if it’s left?

Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Older cottages and farmhouses around Brook can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.

Why book with us

  • Quality sealants from Arbo and Everbuild
  • We agree the colour with you first
  • A choice of colours where the product allows
  • Homes, businesses and hotels

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

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