Kent · England

External Mastic in Staplestreet

External mastic across Staplestreet and nearby, with every bit of old sealant taken out first.

  • Gaps where render, brick and frames meet
  • Movement joints with cracked, split or missing sealant
  • Movement joints filled with mortar instead of sealant

Need external mastic in Staplestreet?

Keeping the joints in good condition

A little care helps the new joints last. Our advice:

  • Check external joints each spring
  • Ask before painting over external sealant
  • Fix overflowing gutters above sealed joints
  • Wash walls gently around the sealant

Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.

Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years so early resealing is worth it.

External mastic for homes and businesses in Staplestreet

We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. We pick a colour that sits well with the wall. We are often asked to deal with moss and dirt in joints with no sealant left and failed sealant between panels on a façade, across copings & trims, render & cladding joints and façade panels.

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

The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or send us an email.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Where
Staplestreet (ME13)
Region
Kent
Guarantee
A year, on every job
Quote
A clear quote up front
Call
0345 464 0079
Last updated
26 October 2026

Leave it or put it right?

Pointing a movement joint with mortar might seem a neat fix, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. In a small place like Staplestreet, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email and we will talk you through it.

What you get with us

  • Every job guaranteed for a year
  • A choice of colours where the product allows
  • Colour picked to suit the job
  • Approved under the ARBOMaster scheme

Read what affects the cost or our reviews.

Do you need external mastic in Staplestreet?

Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and speed up the damage.

It’s worth asking for a quote if you see:

  • Joints pointed up with cement by mistake
  • Moss and dirt in joints with no sealant left
  • Cracked joints where brick meets render or frames
  • Failed sealant between panels on a façade

Letting a property close to Selling station? Then split movement joints are easy to miss on a rental until damp shows inside.

What to look for in a quote

  • When the joint can take water or movement
  • Who turns up on the day
  • What happens if they find a problem under the old sealant
  • Whether they seal over old material or remove it

Our hiring checklist

Surface by surface

Brickwork movement joints

Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant.

Copings and trims

Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.

Work for landlords, hotels and businesses

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.

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

Staplestreet: your questions answered

Do you cover smaller places like Staplestreet?

Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

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

Yes. We work for letting agents and landlords as well as householders. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.

Can I do it myself?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

How long does external mastic last?

There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Every job carries our 12-month guarantee.

Will the new joint stand out?

The sealant colour is picked to suit the wall so the joint blends in. There’s a wide choice of exterior colours.

Why do you put foam in the joint first?

The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides, which would stop it stretching.

Are you an approved applicator?

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

What should I tell you?

Where the job is, what the problem is and roughly how big it is. Photos by email help too.

External mastic in Staplestreet: local notes

Rainfall in the South East is lower than in much 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 Michael include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Boughton-under-Blean and Dunkirk Primary School, larger buildings have long runs of movement joint that eventually need resealing.

Staplestreet is about 3 miles east of Faversham, in Kent. For external mastic in and around Staplestreet, please phone 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Kent, Staplestreet included. We cover 922 towns and villages across Kent, from the larger towns to small villages. You can also see our page for Chelmsford, about 36 miles away.

Every address in ME13 is within our area for external mastic. That includes homes and businesses on Staple Street, Forge Farm Row and Staplestreet Road. If you are just outside Staplestreet, we cover Slutshole (1 mile north-east), Hernhill (1 mile north-east), Goodnestone (1 mile north-west), Culmers (1 mile north) and Dargate (1 mile north-east). Within a short drive, we also cover Ashford (12 miles south), Canterbury (6 miles east), Sittingbourne (10 miles west), Whitstable (5 miles north-east), Faversham (3 miles west) and Herne Bay (9 miles north-east).

Local landmarks in Staplestreet

We work in homes and buildings around Mount Ephraim Gardens and White Horse Inn. Staplestreet’s nearest station is Selling station, about 1.9 miles south. Well-known places in the area include Tower keep castle at Chilham (4.2 miles south) and Eastbridge Hospital of St Thomas the Martyr (5.7 miles east). Green spaces nearby include Blean Woods RSPB Reserve.

Map of Staplestreet © OpenStreetMap contributors

When it is not the sealant

To be straight with you, some problems need a different trade:

  • Rising or penetrating damp from elsewhere in the wall
  • Cracking across the wall rather than at a joint
  • Subsidence or other structural problems

Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.

Joints and surfaces we work on

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

What happens on the day

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Staplestreet needs a little journey planning: 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 look at every joint and agree a colour to suit the wall.
  2. We take out the old sealant until the faces are sound.
  3. Backing rod goes in so the sealant can stretch between the two faces.
  4. We prime the faces where required.
  5. A low-modulus exterior sealant is gunned in and tooled to a neat finish.

Before we arrive

  • Move anything stored near the joints
  • Mention if the joints have been sealed before
  • Try not to wet indoor joints just before the visit

Getting a quote

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

Ask for a quote

Related advice

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