South Lanarkshire · Scotland
External & façade joints in Candy Mill, South Lanarkshire
External mastic for Candy Mill and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Joints pointed up with cement by mistake
- Leaking joints around cladding and façade panels
- Moss and dirt in joints with no sealant left
How the visit works
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours for a handful of joints, longer for a whole elevation. Outdoor work around Candy Mill 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 look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know if you’ve seen damp or leaks
- For indoor joints, keep the area dry beforehand if you can
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, drop us a line at info@mrmastic.co.uk.
Related advice
External mastic in Candy Mill, done properly
On houses, flats and commercial buildings across Candy Mill, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean joint faces and the right depth. Common call-outs are for old sealant gone brittle and cracked and joints with sealant missing in places, across copings & trims, joints between brick and frames and brickwork movement joints.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. Newer houses need their movement joints and roofline trims kept sound.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Candy Mill (ML12)
- Region
- South Lanarkshire
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Candy Mill buildings and the weather
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 sound outside sealant is part of that.
Whether the job is in Candy Mill itself or nearby, the right material for each joint matters as much as a neat finish. In and around Candy Mill, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Candy Mill is about 15 miles east of Carluke, in South Lanarkshire. We carry out external mastic for householders, landlords and businesses in Candy Mill and the surrounding area. Our South Lanarkshire coverage runs to 139 places, and Candy Mill is one of them. We also work in Edinburgh, around 22 miles away.
We cover every part of ML12 for external mastic. If you’re just outside Candy Mill, we cover Skirling (1 mile south), Elsrickle (1 mile north-west), Walston (2 miles north-west), Biggar (3 miles south-west) and Kirkurd (4 miles north-east). We also work in nearby towns such as Carluke (15 miles west), Lanark (12 miles west), Forth (11 miles north-west), Symington (6 miles south-west), Braidwood (14 miles west) and Carnwath (6 miles north-west).
Landmarks near Candy Mill
Well-known places in the area include Edmonston Castle (less than half a mile north) and Kello Hospital (3.1 miles south-west). For a walk, there’s Black Mount.
Surface by surface
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind.
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
What affects the cost of external mastic
For a quick quote, just ask. What matters most is:
- Whether the work is at height
- The product the joint needs
- Any mould that needs treating
- How many rooms, windows or areas are involved
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
What to tell us for a quote
You do not need to know the technical terms. Just tell us:
- Whether it has been sealed before
- Photos by email, if that is easy
- Whether it’s a home or a business
- The rough size of the job
We quote each job on its own, so start by telling us what you need. Simply email us at info@mrmastic.co.uk and describe the job, and photos are welcome.
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Landlords, agents and businesses in Candy Mill
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Deal with leaking gutters that soak the joints below
- Avoid pressure-washing directly into sealant joints
- Look over the joints every year, ideally after winter
- Never let anyone fill a movement joint with mortar
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Act while the splits are small. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.
Candy Mill questions
Is external mastic in Candy Mill guaranteed?
All our work, in Candy Mill and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Is Candy Mill within the area you cover?
Yes, Candy Mill is covered. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you use backing rod?
That is backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we are done.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
How do you reach high-level joints?
Each building is different. Tell us the height, the number of joints and what’s below them, and we will confirm what access is needed.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.
Also in Candy Mill
Why deal with it now?
Sealing over the top of old mastic doesn’t hold for long. The new layer cannot bond properly to old, weathered material, so we always take the old sealant out. In a place like Candy Mill, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.
Why book with us
- We agree the colour with you first
- An ARBOMaster approved applicator
- White, clear, grey or coloured to suit, where the product allows
- 180+ five-star Google reviews
Read what affects the cost and customer reviews.