Kent · England
External & façade joints in West Malling, Kent
External mastic across West Malling and nearby, with old sealant always removed completely.
- Failed seals between different materials
- Old sealant gone brittle and cracked
- Movement joints with cracked, split or missing sealant
External mastic for homes and businesses in West Malling
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. We work on façade panels, brickwork movement joints and render & cladding joints, and common reasons people get in touch are plants rooting in failed movement joints and damp patches traced to an open external joint.
Homes around West Malling range from older cottages to newer houses, with walls and rooflines of every type. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
Big or small, it’s backed by our one-year guarantee in West Malling and across Kent.
- Place
- West Malling (ME19)
- Region
- Kent
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
When it isn’t the sealant
It helps to know what we can’t do too:
- Adding movement joints to masonry that has none
- Damp that isn’t coming from the joint
- Cracking across the wall rather than at a joint
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Concrete & block
- Façade panels
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
Towns and villages near West Malling
What else we do in West Malling
West Malling buildings and the weather
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Old Soar Manor (about 4.2 miles south-west) nearby, there’s older building stock in the area around West Malling as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
For landlords with property near West Malling station, outside joints that have cracked can let damp into a rental, so check them between lets. For site and facilities teams at buildings such as More Park Catholic Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
West Malling is about 6 miles west of Maidstone, in Kent. We provide external mastic to homes and businesses in West Malling and the surrounding area, as part of our work across Kent. 922 places in Kent are on our list, large and small. For nearby work, see our London page (26 miles or so).
Every address in ME19 is within our area for external mastic, from the main roads to the quietest streets. If you need external mastic at a property on High Street, Police Station Road and London Road or a nearby road, our applicators can take on the job. West Malling is on the A20, so it’s easy for us to get to with everything needed for external mastic. We also cover the places around West Malling: Well Street (1 mile south-east), East Malling (1 mile east), Kings Hill (2 miles south), Ditton (2 miles east) and Red Hill (3 miles south-east). We also work in nearby towns such as Maidstone (6 miles east), Sittingbourne (15 miles east), Dartford (13 miles north-west), Sevenoaks (9 miles west), Royal Tunbridge Wells (12 miles south-west) and Gravesend (9 miles north).
What’s near West Malling
We work in homes and buildings around Manor Park Country Park, The Malling School and The Malling School and the streets around them. The closest station to West Malling is West Malling station, about 0.7 miles east. A little further out are Coldrum Long Barrow (2.3 miles north-west) and Leybourne Castle (1.1 miles north-east). Open spaces near West Malling include Burham Down and Blue Bell Hill.
What affects the cost of external mastic
The quote reflects the job in front of us. We take into account:
- Whether there’s mould to deal with
- Any working-time requirements on site
- Access and height
- How many rooms, windows or areas are involved
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 we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
To make quoting easier, let us know:
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved and give you a clear price.
How the visit works
The work is kept neat and contained to the area we are working on, so you can carry on as normal. The job generally takes a few hours to a few days, depending on the length of joint and the access. In a smaller place like West Malling, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Related advice
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
Why it’s worth doing now in West Malling
Resealing a run of joints in one go is generally better than patching one at a time. They’ve weathered the same way, and access only has to be arranged once. In a smaller place like West Malling, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
Why book with us
- We leave the area clean and tidy
- Full insurance on every job
- Old sealant always removed completely
- Quality sealants from Arbo and Everbuild
See how sealant jobs are priced and our reviews.
When to call us in West Malling
If plants are growing out of a joint, the sealant has usually failed or was never there. Roots and dirt hold water against the wall and make things worse.
It’s worth asking for a quote if you see:
- Movement joints filled with mortar instead of sealant
- Failed seals between different materials
- Weeds or debris growing in open joints
- Rain getting behind render or cladding at a joint
If you live in an older home near Parish Church of St Mary the Virgin, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Before you book anyone
- How the surfaces are prepared before sealing
- How the colour is chosen
- Is the old sealant removed completely?
- How long the guarantee is
Surface by surface
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Common questions in West Malling
Do you work for landlords with property near West Malling station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Is West Malling in your area for external mastic?
Yes, West Malling is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Do you use backing rod?
Backing rod controls the sealant depth and keeps it off the back of the joint. That way it bonds to the two sides only and can stretch.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
Is it OK to fill a movement joint with cement?
No. Cement or mortar can’t stretch. Where a joint has been mortared, it can often be raked out and sealed properly.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
What is a movement joint?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking, and it should be sealed with a flexible sealant.