Angus · Scotland
External Mastic in Kirriemuir
Sealing brickwork movement joints, render, cladding and façade joints in Kirriemuir, with a 12-month guarantee on every job. Ask us for a quote.
- Moss and dirt in joints with no sealant left
- Joints pointed up with cement by mistake
- Panel joints letting water in
Looking after it afterwards
To keep the joints looking good and working properly:
- Keep high-pressure jets off the joints
- Don’t let climbing plants root in the sealant
- Act on the first splits you see
- Check external joints each spring
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years so early resealing is worth it.
About our external mastic in Kirriemuir
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, and when it fails, the wall takes the strain and water finds a way in. We work on render & cladding joints, copings & trims and brickwork movement joints, and common reasons people get in touch are failed sealant between panels on a façade and sealant that has lost its bond to the brick or render.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.
A one-year guarantee comes as standard.

- Where
- Kirriemuir (DD8)
- Region
- Angus
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
External mastic in Kirriemuir: local notes
Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Around Kirriemuir, as everywhere, external mastic is only as good as the preparation behind it. Glamis Castle, about 3.8 miles south, is one of the historic houses in the wider area around Kirriemuir, and older homes nearby need a sealant that suits their walls.
Kirriemuir is about 14 miles north of Dundee, in Angus. From the centre of Kirriemuir to the outskirts, external mastic is available for homes and businesses alike. 40 places in Angus are on our list, from the larger towns to small villages. Dundee is on our list too, about 14 miles from Kirriemuir.
Jobs for external mastic in DD8 works the same way as everywhere else we cover. External mastic is available to properties on High Street, St Malcolm's Wynd and Rosefield Gardens. With the A926 and A928 close by, Kirriemuir is easy for our applicators to reach. Neighbouring places we cover for external mastic include Maryton (1 mile south-east), Westmuir (1 mile south-west), Padanaram (3 miles south-east), Douglastown (5 miles south-east) and Glamis (5 miles south). Further out, we also cover Forfar (5 miles south-east), Brechin (14 miles east), Letham (9 miles east) and Friockheim (13 miles east). Kirriemuir is one of the larger places we cover in Angus.
Near you in Kirriemuir
In Kirriemuir, that means homes and buildings near Roods Bar and the streets around them. A little further out are Kirriemuir Gateway to the Glens Museum (under half a mile south) and Forfar Infirmary (5.3 miles east). Not far away are Loch of Kinnordy and Mile Hill.
Why act early in Kirriemuir
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. In a place like Kirriemuir, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What you get with us
- Approved under the ARBOMaster scheme
- You choose the colour before work begins
- A choice of colours where the product allows
- Colour picked to suit the job
Take a look at our cost guide and what customers say.
Also in Kirriemuir
Can I do it myself?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
How the visit works
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the work takes a few hours to a few days, depending on the length of joint and the access for a typical job. For a place like Kirriemuir, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Advice
Landlord and commercial work in Kirriemuir
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
How we quote for external mastic
You’ll get a clear quote before any work starts. It takes into account:
- The number and length of the joints
- Access and height
- The product the joint needs
- Working hours on commercial sites
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and give you a clear quote before any work starts.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- How we’d reach the joints
- A few pictures by email, if you can
- The address or postcode of the job
- Whether it’s a home or a business
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we will take it from there.
When it isn’t the sealant
We’ll always be straight with you, so here’s what new sealant won’t do:
- Failed render or damaged cladding panels
- Cracking across the wall rather than at a joint
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly.
Joints and surfaces we work on
- Façade panels
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Copings & trims
Common questions in Kirriemuir
Is Kirriemuir in your area for external mastic?
Yes, Kirriemuir is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
Is external mastic in Kirriemuir guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
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.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
Do you seal joints where cladding meets other materials?
Yes. Where different materials meet is one of the most common joints we seal. We use a flexible sealant suited to both surfaces with primer where required.
When will the joints need doing again?
That varies with the weather the wall faces, how much it moves and the sealant used. Treat it as a maintenance item and look at it yearly.
Are you insured?
Yes. We’re fully insured.
What information do you need?
Let us know what needs doing and where, plus pictures if you have them. If we need more, we will ask.
