Kent · England
West Farleigh External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in West Farleigh. Fully insured, ARBOMaster approved and guaranteed for a year.
- Joints where the bead has come unstuck
- Failed seals between different materials
- Weeds or debris growing in open joints
How the visit works
Good joint work is mostly preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours to a few days, depending on the length of joint and the access. Somewhere as small as West Farleigh, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Mention any leaks or damp you’ve noticed
Ask for a quote
We quote each job on its own, so the first step is telling us about yours. Simply call 0345 464 0079 or send us an email and describe the job.
Advice
About our external mastic in West Farleigh
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. We work on brickwork movement joints, joints between brick and frames and façade panels, and the jobs we see most are weathered mastic that no longer stretches and failed seals between different materials.
Somewhere as small as West Farleigh, homes and farm buildings often face open ground, where walls and rooflines take the weather head on. Gutter joints and wall joints there need a sealant that can flex and stay put.
Whatever the size of the job, you get the same 12-month guarantee.
- Location
- West Farleigh (ME15)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Walls and rooflines in West Farleigh
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.
For site and facilities teams at buildings such as Oakwood Park Grammar School, larger buildings have long runs of movement joint that eventually need resealing. If you live in an older home near All Saints Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. Letting a property close to East Farleigh station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
West Farleigh is about 3 miles west of Maidstone, in Kent. Across the ME15 area, we can carry out external mastic at your property. West Farleigh is one of 922 towns and villages in Kent where we work for external mastic. For nearby work, see our London page (29 miles or so).
All of ME15 is within our area for external mastic. If you are just outside West Farleigh, we cover Farleigh Green (1 mile east), Hoppers Corner (1 mile north-east), Teston (1 mile north-west), Barming Heath (1 mile north) and Kettle Corner (1 mile north-east). We also work in nearby towns such as Maidstone (3 miles east), Sittingbourne (14 miles north-east), Sevenoaks (12 miles west), Royal Tunbridge Wells (11 miles south-west), Gravesend (13 miles north) and Tonbridge (8 miles south-west).
What’s near West Farleigh
Typical jobs here are in homes near Quarry Wood and The Tickled Trout pub. West Farleigh’s nearest station is East Farleigh station, roughly 1.4 miles east. Other landmarks nearby include Allington Castle (3.9 miles north-east) and Oakwood Hospital (1.9 miles north-east).
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
How the job changes by surface
Copings and trims
Coping and trim joints face rain and sun head on. We reseal them with an exterior sealant suited to the material.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Why deal with it now?
Resealing a run of joints in one go is normally better than patching one at a time. They’ve weathered the same way, and access only has to be arranged once. Older cottages and farmhouses around West Farleigh can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
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’ll go through it with you.
Why book with us
- Sealant colour chosen to suit
- Homes, businesses and hotels
- Full insurance on every job
- A 12-month guarantee on all work
Read how sealant jobs are priced and customer reviews.
What we can’t put right
It helps to know what we can’t do too:
- Cracking across the wall rather than at a joint
- Adding movement joints to masonry that has none
- Movement that’s more than a sealant joint can take
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Where we work in West Farleigh
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Concrete & block
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Show decorators and builders where the movement joints are
- Have failed joints looked at early
- Never let anyone fill a movement joint with mortar
- Keep high-pressure jets off the joints
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
Places near West Farleigh
Also in West Farleigh
West Farleigh: your questions answered
I let a flat near East Farleigh station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Do you cover smaller places like West Farleigh?
Yes, West Farleigh is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
What is backing rod for?
That is backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can you seal joints between render and window frames?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides, primed where needed.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.