Kent · England
External & façade joints in Martin, Kent
External mastic for Martin, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Failed seals between different materials
- Joints pointed up with cement by mistake
- Hard, crazed mastic that has stopped moving
External mastic in Martin
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. If you have plants rooting in failed movement joints and cracked joints where brick meets render or frames, we can help.
Somewhere as small as Martin, homes and farm buildings often face open ground, 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.
Whatever the size of the job, you get the same 12-month guarantee in Martin and across Kent.
- Place
- Martin (CT15)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Quotes for external mastic in Martin
Call for a quick quote. What matters most is:
- Whether the work is at height
- Any working-time requirements on site
- Mould in or behind the old joints
- The amount of work
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
What we need to know
To make quoting easier, please include:
- Whether it’s a home or a business
- A few photos by email, if you can
- Whether it has been sealed before
- The problem you’ve noticed
To get a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
Places near Martin
Other services in Martin
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Clear growth from the base of walls and joints
- Keep movement joints as flexible joints, not mortar
- Look over the joints every year, ideally after winter
- Point out the joints to other trades
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
For landlords and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
External mastic in Martin: local notes
Martin is within about 3 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. With historic houses such as Walmer Castle (about 3 miles north-east) nearby, there’s older building stock in the area around Martin as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Rented homes near Martin Mill station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. For site and facilities teams at buildings such as Langdon Primary School, larger buildings have long runs of movement joint that eventually need resealing. In the older streets around Church of St Augustine, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Martin is about 3 miles north-east of Dover, in Kent. For external mastic in and around Martin, please ring 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Kent. Across Kent, we cover 922 places, and Martin is one of them. Chelmsford is on our list too, around 54 miles away.
Our applicators cover all of the CT15 postcode area for external mastic. Whether your property is on The Street, Waterworks Lane and Ringwould Road or anywhere close by, we can help. If you are just outside Martin, we cover Martin Mill (1 mile south-east), East Langdon (1 mile south-west), West Langdon (1 mile west), Ringwould (1 mile north-east) and Sutton (1 mile north). Larger places within reach include Canterbury (13 miles north-west), Margate (14 miles north), Dover (3 miles south-west), Folkestone (10 miles south-west), Ramsgate (12 miles north) and Broadstairs (13 miles north).
Local landmarks in Martin
In Martin, that means homes and buildings near The Lantern Inn and Duke of York's Royal Military School. There’s a railway station in Martin itself: Martin Mill station. A little further out are Royal Victoria Hospital (3.6 miles south-west) and St Margaret's Museum (2.5 miles south-east). Green spaces nearby include Dover Western Heights.
What sealant work can’t fix
A few problems are outside what sealant work can do:
- Movement that’s more than a sealant joint can take
- Render that is blown, hollow or coming away
- Cracks in the bricks or render themselves, away from the joints
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Concrete & block
- Façade panels
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
Your questions about external mastic in Martin
I let a flat near Martin Mill station. Can you help?
Yes. We work for landlords and agents as well as householders. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Does living near the coast affect external mastic in Martin?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Can you reach joints on upper floors?
It depends on the height and the site. Low-level joints are straightforward; for higher work, tell us about the building and we will confirm what’s needed.
Can you match the colour of my brickwork?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
How it works
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before work begins. The work usually takes a few hours to a few days, depending on the length of joint and the access. In a small place like Martin, access is generally 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.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any parking rules near the property
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
Read more
Different surfaces, different methods
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. A primer goes on where the product requires one before the bead.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod coloured to suit the wall.