Kent · England
External Mastic in Westwell Leacon
Our applicators work in Westwell Leacon on sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Leaking joints around cladding and façade panels
- Joints with sealant missing in places
- Old sealant gone brittle and cracked
External mastic in Westwell Leacon, done properly
On houses, flats and commercial buildings across Westwell Leacon, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. If you are dealing with joints where the bead has come unstuck and cracked joints where brick meets render or frames, we can put it right.
Older homes in small places like Westwell Leacon may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in.
We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.
- Where
- Westwell Leacon (TN27)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
More services for Westwell Leacon
How to look after the new joints
After the cure time, these simple habits help:
- Avoid pressure-washing directly into sealant joints
- Get split or bare joints resealed while the damage is small
- Look over the joints every year, ideally after winter
- Keep movement joints as flexible joints, not mortar
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead over time.
Once a joint can’t move, the wall finds another way, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Your questions about external mastic in Westwell Leacon
Can you do external mastic in Westwell Leacon?
Yes, Westwell Leacon is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
I let a flat near Charing station. Can you help?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
What is backing rod for?
Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back, so the joint can move.
When will the joints need doing again?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges, and reseal at that point.
Do you have insurance?
Yes, we’re fully insured for every job we do.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
What’s an expansion joint in brickwork?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking and needs a flexible seal, not mortar.
What external mastic looks like in Westwell Leacon
With historic houses such as Godinton House (about 2.7 miles south-east) nearby, there’s older building stock in the area around Westwell Leacon as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as The Hayesbrook School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. If you live in an older home near Charing Methodist Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Westwell Leacon is about 5 miles north-west of Ashford, in Kent. For external mastic in and around Westwell Leacon, please phone 0345 464 0079 or send us an email for a quick quote. We cover Kent from our Crawley base. Westwell Leacon is one of 922 towns and villages in Kent where we work. Our Chelmsford page covers work nearby.
We work across TN27 for external mastic. Other places close to Westwell Leacon include Ram Lane (1 mile south-east), Tutt Hill (1 mile south-east), Westwell (2 miles east), Hothfield (2 miles south) and Potters Corner (3 miles south-east). We also work in nearby towns such as Maidstone (13 miles west), Ashford (5 miles south-east), Canterbury (13 miles north-east), Sittingbourne (11 miles north), Whitstable (15 miles north-east) and Faversham (9 miles north-east).
Near you in Westwell Leacon
For rail, the closest station is Charing station, about 1.2 miles north-west of the centre. Nearby you will also find Coldbridge Castle (4.8 miles west) and William Harvey Hospital (5.9 miles south-east).
Landlords, agents and businesses in Westwell Leacon
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
If you manage several properties in or around Westwell Leacon, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Why act early in Westwell Leacon
Running new sealant over the old bead rarely lasts. The new layer cannot bond properly to old, weathered material, so the old joint is cut out fully first. In a small place like Westwell Leacon, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What you pay reflects the work, not guesswork. That’s why we ask about the job first and send you a clear quote before any work starts.
Why book with us
- Neat joints and a tidy finish
- An ARBOMaster approved applicator
- A choice of colours where the product allows
- Full insurance on every job
See how sealant jobs are priced and our reviews.
How the job changes by surface
Concrete and blockwork
Concrete faces can be dusty and porous, so preparation is key. A primer goes on where the product requires one before sealing.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so its sealant has to stay flexible.
The process
Every visit runs the same way: we check the joints, 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. In a small place like Westwell Leacon, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Mention any tricky access
- Clear the area around the work
- Keep pets and children clear of the area while we work
Ask for a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Related advice
Common problems we fix in Westwell Leacon
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
It’s worth asking for a quote if you see:
- Joints where the bead has come unstuck
- Joints pointed up with cement by mistake
- Leaking joints around cladding and façade panels
- Movement joints with cracked, split or missing sealant
For landlords with property near Charing station, outside joints that have cracked can let damp into a rental, so check them between lets.
Questions to ask before you book
- Whether VAT is included
- When the joint can take water or movement
- How the colour is chosen
- How the joint is cleaned and prepared