Kent · England
External Mastic in Leybourne
Sealing brickwork movement joints, render, cladding and façade joints for Leybourne, backed by a one-year guarantee. Call for a quick quote.
- Old sealant gone brittle and cracked
- Panel joints letting water in
- Joints where the bead has come unstuck
When to call us in Leybourne
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
It’s worth asking for a quote if you see:
- Joints pointed up with cement by mistake
- Movement joints with cracked, split or missing sealant
- Failed seals between different materials
- Old sealant gone brittle and cracked
Rented homes near West Malling station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Before booking anyone
- What the cure time is
- Is the old sealant removed completely?
- What preparation is included
- How much experience the applicator has
How we handle external mastic in Leybourne
On houses, flats and commercial buildings across Leybourne, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean joint faces and the right depth. We work on copings & trims, concrete & block and joints between brick and frames, and common reasons people get in touch are failed sealant between panels on a façade and weathered mastic that no longer stretches.
Somewhere as small as Leybourne, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
The work is covered for a year after we finish. If anything is not right with it, ring 0345 464 0079 or email us.
- Place
- Leybourne (ME19, ME20)
- Region
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Leybourne questions
Can you do external mastic in Leybourne?
Yes, Leybourne is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear price.
Do you cover smaller places like Leybourne?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is the work guaranteed?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will tell you what we’re using.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
When will the joints need doing again?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Our work comes with a one-year guarantee.
Are you insured?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Get split or bare joints resealed while the damage is small
- Wash walls gently around the sealant
- Make sure movement joints aren’t pointed over
- Keep soil, plants and ivy away from the joints
Keep the joints clear of soil, plants and climbing growth. Damp material against the sealant shortens its life.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established.
Quotes for external mastic in Leybourne
There’s no set price list. The quote depends on:
- The number and length of the joints
- Working hours on commercial sites
- Which sealant suits the joint
- The old material and how stubborn it is
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
When you contact us, these details help:
- What’s wrong with the joints now
- Photos by email, if that is easy
- Where the job is, and your postcode
- Roughly how big the job is
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.
Walls and rooflines in Leybourne
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Starkey Castle (about 4.5 miles north) nearby, there’s older building stock in the area around Leybourne as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
If you live in an older home near Church of St Peter and St Paul, the joints between older walls, newer extensions and the roofline need a sealant that can move. For site and facilities teams at buildings such as Lunsford Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Leybourne is about 5 miles north-west of Maidstone, in Kent. From the centre of Leybourne to the outskirts, external mastic is available for homes and businesses alike. Across Kent, we cover 922 places, and Leybourne is one of them. We also work in London, around 26 miles away.
All of ME19 and ME20 is covered for external mastic, from the main roads to the quietest streets. Local streets include London Road, Oxley Shaw Lane and Redbank, and we cover them all. Close by, we work in Larkfield (1 mile east), Lunsford (1 mile north-east), New Hythe (1 mile north-east), Birling (1 mile north-west) and Snodland (2 miles north). Within a short drive, we also cover Maidstone (5 miles south-east), Sittingbourne (14 miles east), Dartford (13 miles north-west), Sevenoaks (10 miles west), Royal Tunbridge Wells (13 miles south-west) and Gravesend (9 miles north).
Near you in Leybourne
Locally, jobs take us to homes and businesses close to The Malling School, Leybourne Lakes Country Park and The Malling School and the streets around them. Leybourne’s nearest station is West Malling station, about 0.7 miles south-west of the centre. Nearby you will also find Leybourne Castle (within half a mile north-west) and Coldrum Long Barrow (2.7 miles north-west). Green spaces nearby include Burham Down and Blue Bell Hill.
Other services in Leybourne
Leave it or put it right?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. Around Leybourne, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- A 12-month guarantee on all work
- Homes, businesses and hotels
- We never seal over old sealant
- Quality sealants from Arbo and Everbuild
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. Most jobs take anything from a few hours to several days, depending on the building. In a small place like Leybourne, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Read more
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Cracks in the bricks or render themselves, away from the joints
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Movement that’s more than a sealant joint can take
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Concrete & block
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
- Façade panels
- Brickwork movement joints