Kent · England
External & façade joints in Martin Mill, Kent
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Martin Mill. Fully insured, ARBOMaster approved and guaranteed for a year.
- Joints with sealant missing in places
- Panel joints letting water in
- Joints pointed up with cement by mistake
How it works
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. It normally takes a few hours to a few days, depending on the length of joint and the access. In a small place like Martin Mill, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
Ask for a quote
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or drop us an email with the details, and pictures are welcome.
Read more
About our external mastic in Martin Mill
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the joint doesn’t stand out. We work on façade panels, brickwork movement joints and copings & trims, and common reasons people get in touch are failed seals between different materials and rain getting behind render or cladding at a joint.
External sealant needs dry, clean surfaces, so work around Martin Mill is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- Martin Mill (CT15)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Can I do it myself?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Nearby places to Martin Mill
Other services in Martin Mill
When something else is needed
A few problems are outside what sealant work can do:
- Render that’s blown, hollow or coming away
- Movement that’s more than a sealant joint can take
- Cracking across the wall rather than at a joint
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly before you book.
Joints and surfaces we work on
- Copings & trims
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
Outside joints around Martin Mill
Martin Mill is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St Augustine include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. For landlords with property near Martin Mill station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Martin Mill is about 3 miles north-east of Dover, in Kent. Our applicators cover external mastic for householders, landlords and businesses in Martin Mill and the surrounding area. 922 places in Kent are on our list, from the larger towns to small villages. There’s also a page for Chelmsford, about 54 miles away.
Work in CT15 works the same way as everywhere else we cover. Streets in the area include Station Road, Barley Close and Lucerne Lane, and we cover them all. We also cover the places around Martin Mill: Martin (1 mile north-west), East Langdon (1 mile west), West Cliffe (1 mile south), West Langdon (1 mile north-west) and Ringwould (1 mile north-east). Within a short drive, we also cover Canterbury (14 miles north-west), Margate (15 miles north), Dover (3 miles south-west), Folkestone (10 miles south-west), Ramsgate (12 miles north) and Broadstairs (14 miles north).
Around Martin Mill
Locally, jobs take us to homes and businesses close to Duke of York's Royal Military School and The Lantern Inn and the streets around them. Martin Mill has its own railway station: Martin Mill station. Other landmarks nearby include Royal Victoria Hospital (3.4 miles south-west) and Dover Castle (3.1 miles south). Green spaces nearby include Dover Western Heights.
Questions from Martin Mill
Do you work for landlords with property near Martin Mill station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Do you cover smaller places like Martin Mill?
Yes, Martin Mill is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
How much does external mastic cost in Martin Mill?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
What is a movement joint?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we are using.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint before we leave.
Should I point up the gap in my brickwork?
No, not if it’s a movement joint. Pointing it stops it working and can lead to cracking. We’ll reseal it with a flexible sealant.
When to call us in Martin Mill
Using the wrong sealant is another common reason. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, and it tears off the sides.
Keep an eye out for any of the following:
- Old sealant gone brittle and cracked
- Joints where the bead has come unstuck
- Moss and dirt in joints with no sealant left
- Movement joints filled with mortar instead of sealant
For site and facilities teams at buildings such as Langdon Primary School, larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- What preparation is included
- What product goes in the joint
- Whether they’re fully insured
- Who turns up on the day
How the job changes by surface
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. If that’s happened, we rake it out and reseal it properly if the joint can be cleared.
Joints between dissimilar materials
Wherever two materials meet, they move differently. A flexible sealant bridges the two so neither cracks the other.
Why act early in Martin Mill
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. Around Martin Mill, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
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 email us and we’ll talk you through it.
What you get with us
- Quality sealants from Arbo and Everbuild
- An ARBOMaster approved applicator
- Rated 4.9 stars on Google
- Neat joints and a tidy finish
Take a look at what affects the cost and customer reviews.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Keep water from gutters off the wall
- Avoid pressure-washing directly into sealant joints
- Show decorators and builders where the movement joints are
- Get split or bare joints resealed while the damage is small
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage.
