Highland · Scotland
External Mastic in Kinlochleven
Movement joints in Kinlochleven need attention? We cut out the old, prepare the joints and apply the right sealant.
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Brick movement joints where the sealant has split
External mastic for homes and businesses in Kinlochleven
Movement joints let brickwork, render and cladding expand and shrink without cracking. 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’re often asked to deal with rain getting behind render or cladding at a joint and old sealant gone brittle and cracked, on render & cladding joints, concrete & block and joints between brick and frames.
Outside joints can only be sealed when they’re dry, so work in Kinlochleven depends on the weather. Let us know about access to every wall and roofline.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- Kinlochleven (PH50)
- Wider area
- Highland
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Deal with leaking gutters that soak the joints below
- Walk round the building once a year and look at the joints
- Clear growth from the base of walls and joints
- Have failed joints looked at early
Don’t paint over the new sealant unless we’ve said the product is paintable. Paint can crack on a flexible joint and spoil the finish.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
The process
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. The work generally takes a few hours for a handful of joints, longer for a whole elevation. Outdoor work around Kinlochleven depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- 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
- Let us know about earlier repairs to the joints
- Mention any parking rules near the property
- For business premises, tell us about site rules or sign-in
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, send an email to info@mrmastic.co.uk.
Advice
What affects the cost of external mastic
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- How many areas need sealing
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
Leaving a failed joint generally makes the job bigger, not smaller. If you are unsure, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
What to tell us for a quote
When you call or email, these details help:
- Where the job is, and your postcode
- The type of property
- The rough size of the job
- The problem you’ve noticed
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work.
Common questions in Kinlochleven
Is external mastic in a coastal place like Kinlochleven any different?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are generally the first to need attention.
Will you come out to Kinlochleven?
Yes, Kinlochleven is covered. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Are you insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher work, tell us about the building and we will confirm what’s needed.
What colours does the sealant come in?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render so the joint doesn’t draw the eye.
Can you seal over the old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
What the job involves on each surface
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. We prime where the sealant needs it.
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together, and we are fully insured for the work.
For anyone letting property in or around Kinlochleven, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
DIY versus a professional finish
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.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Towns and villages near Kinlochleven
What else we do in Kinlochleven
Walls and rooflines in Kinlochleven
Kinlochleven is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
Around Kinlochleven, as everywhere, external mastic is only as good as the preparation behind it. Whether the job is in Kinlochleven itself or nearby, the right material for each joint matters as much as a neat finish.
Kinlochleven is in Highland. Jobs in Kinlochleven get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Across Highland, we cover 253 places, and Kinlochleven is one of them. There’s also a page for Glasgow, about 65 miles away.
Our applicators cover all of PH50 for external mastic. Streets in the area include Back Foyers Road, Foyers Road and Appin Road. We also cover the places around Kinlochleven: Kinlochmore (1 mile north), Glencoe (6 miles west), Ballachulish (7 miles west), Blarmachfoldach (7 miles north-west) and Fort William (9 miles north-west). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Kinlochleven
Open spaces near Kinlochleven include Loch Eilde Mòr.
When something else is needed
We won’t take on work that will not last, so here’s what sealant cannot put right:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Adding movement joints to masonry that has none
- Cracking across the wall rather than at a joint
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Copings & trims
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Façade panels
- Brickwork movement joints