Kent · England
Leeds External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Leeds, backed by a 12-month guarantee. Call for a quick quote.
- Joints pointed up with cement by mistake
- Gaps where render, brick and frames meet
- Sealant pulling away from one side of the joint
Outside joints around Leeds
Rainfall in the South East is lower than in much 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 Leeds Castle (about 1 mile east) nearby, there’s older building stock in the area around Leeds 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.
Managing a site like Leeds and Broomfield Church of England Primary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to St Nicholas's Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Leeds is about 4 miles east of Maidstone, in Kent. Homes, rented property, offices and hotels in Leeds can book us for external mastic, old or new, large or small. Every job comes with our one-year guarantee. Leeds is one of 922 towns and villages in Kent where we work for external mastic. For nearby work, see our Chelmsford page.
We cover every part of the ME17 postcode area for external mastic and the streets around it. That includes homes and businesses on Brogden Crescent, Forge Lane and Gloriette Avenue and the roads around them. Close by, we work in Ashbank (1 mile north-east), Broomfield (1 mile east), Eyhorne Street (1 mile north-east), Chartway Street (2 miles south) and Kingswood (2 miles south-east). Within a short drive, we also cover Maidstone (4 miles west), Ashford (13 miles south-east), Sittingbourne (9 miles north-east), Tonbridge (15 miles west), Faversham (13 miles east) and Minster (15 miles north-east).
Near you in Leeds
We work in homes and buildings around The George Inn. Leeds’s nearest station is Hollingbourne station, roughly 1.6 miles north-east. Nearby you’ll also find Leeds Castle (1 mile east) and KIMS hospital (3.4 miles north-west). Green spaces nearby include Detling Hill.
External mastic for homes and businesses in Leeds
Joints in render and cladding are easy to overlook until a damp patch appears. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant. We work on render & cladding joints, joints between brick and frames and copings & trims, and the jobs we see most are moss and dirt in joints with no sealant left and failed seals between different materials.
External sealant needs dry, clean surfaces, so work around Leeds is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Where
- Leeds (ME17)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
When something else is needed
We will always be straight with you, so here’s what sealant cannot fix:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Loose or hollow render, which needs re-rendering
- Subsidence or other structural problems
If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Surfaces we seal
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
- Façade panels
- Concrete & block
- Copings & trims
Your questions about external mastic in Leeds
Will you come out to Leeds?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Leeds in your area for external mastic?
Yes. Our work covers London and the South East, and Leeds is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Can you seal over the old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
How do I get a quote for external mastic in Leeds?
Size, access and the old material all affect the cost. Ask us for a quote.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us.
What do you need from me for a quote?
Only a few details: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or drop us an email.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
How we quote for external mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- How many areas need sealing
- Whether there’s mould to deal with
- Which sealant suits the joint
- Any working-time requirements on site
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
Photos help, but a description is a good start. Please mention:
- Any access issues, like height or stairs
- Roughly how big the job is
- Where the property is
- Photos by email, if that’s easy
If you are in Leeds and need external mastic, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before work begins.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Wash walls gently around the sealant
- Leave the joints unpainted unless we have said otherwise
- Keep water from gutters off the wall
- Point out the joints to other trades
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
What we do, step by step
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to several days, depending on the building, including the tidy-up. For a village or hamlet like Leeds, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- 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
- Move anything stored near the joints
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
Getting a quote
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Related advice
Leave it or put it right?
Resealing a run of joints in one go is generally better than patching one at a time. Joints of the same age tend to fail together, and access only has to be arranged once. In a small place like Leeds, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
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 play a part.
Why book with us
- Over 20 years’ experience
- Rated 4.9 stars on Google
- Colour agreed with you before work begins
- A 12-month guarantee on all work
See what affects the cost and what customers say.
Do you need external mastic in Leeds?
Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
Keep an eye out for these signs:
- Weeds or debris growing in open joints
- Sealant pulling away from one side of the joint
- Failed seals between different materials
- Movement joints with cracked, split or missing sealant
For landlords with property near Hollingbourne station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What to look for in a quote
- The length of the guarantee
- What the quote includes, VAT included or not
- What preparation is included
- Whether they seal over old material or remove it
For landlords and businesses
We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for.
For anyone letting property in or around Leeds, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.