North Lanarkshire · Scotland
External & façade joints in Croy, North Lanarkshire
We cover Croy for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Hard, crazed mastic that has stopped moving
- Leaking joints around cladding and façade panels
- Joints pointed up with cement by mistake
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
How we handle external mastic in Croy
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render so the joint doesn’t stand out. We work on concrete & block, façade panels and render & cladding joints, and people most often call us about sealant pulling away from one side of the joint and joints pointed up with cement by mistake.
External sealant needs dry surfaces, so outdoor work around Croy is planned around the weather, and longer journeys are planned in advance. Tell us how to reach each wall, gutter and roofline.
Each job carries a 12-month guarantee, large or small.
- Place
- Croy (G65)
- Wider area
- North Lanarkshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What the job involves on each surface
Concrete and blockwork
Big joints in concrete need careful depth control. Backing rod sized to the joint sets it so the sealant is not too deep.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. If that’s happened, we rake it out and reseal it properly where it can be done safely.
Landlords, agents and businesses in Croy
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
For anyone letting property in or around Croy, several properties can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
What we do, step by step
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Around Croy, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- 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.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Mention any sign-in or site rules at work premises
- Clear the area around the work
- Keep children and pets away from the work area
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, email us at info@mrmastic.co.uk.
Advice
Questions from Croy
Do you cover Croy for external mastic?
Yes, Croy is within the area we cover. We work across all of Scotland. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
I let a flat near Croy station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we will send you a clear quote.
Is the work guaranteed?
Yes, always. Each job is guaranteed for twelve months.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
How long does the job take?
As a guide, most jobs take a few hours to a few days, depending on the length of joint and the access. Larger jobs naturally take longer, and we will say how long yours will take.
What is a movement joint?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. The gap is sealed with a flexible sealant over backing rod.
Do you work at height?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we’ll confirm the access.
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 something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Rising or penetrating damp from elsewhere in the wall
- Cracks in the bricks or render themselves, away from the joints
- Render that’s blown, hollow or coming away
If you are not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer.
Where we work in Croy
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Concrete & block
- Brickwork movement joints
- Copings & trims
Do you need external mastic in Croy?
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
Signs it’s time to call us include:
- Movement joints filled with mortar instead of sealant
- Rain getting behind render or cladding at a joint
- Leaking joints around cladding and façade panels
- Movement joints with cracked, split or missing sealant
For site and facilities teams at buildings such as Our Lady's High, larger buildings have long runs of movement joint that eventually need resealing.
Questions to ask before booking
- Is VAT in the price?
- Which colour the sealant will be
- What happens if they find a problem under the old sealant
- How long the guarantee is
Outside joints around Croy
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
Letting a property close to Croy station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Croy is about 2 miles west of Cumbernauld, in North Lanarkshire. Every kind of property in Croy is covered for external mastic, old or new, large or small. The work is guaranteed for a year. 89 places in North Lanarkshire are on our list, large and small. For nearby work, see our Glasgow page (12 miles or so).
Jobs for external mastic in G65 works the same way as everywhere else we cover. You will find streets such as Mcsparran Road, Overcroy Road and Cuilmuir Terrace, all of which we cover. We also cover Auchinstarry (1 mile west), Smithstone (1 mile south), Craigmarloch (1 mile east), Balloch (1 mile south-east) and Dullatur (1 mile north-east). Within a short drive, we also cover Motherwell (11 miles south), Coatbridge (7 miles south), Airdrie (7 miles south), Wishaw (13 miles south), Bellshill (10 miles south) and Burnfoot (6 miles south).
Around Croy
Croy has its own railway station: Croy station. Well-known places in the area include Cumbernauld Castle (2.8 miles east) and Colzium Museum (1.6 miles north). For a walk, there’s Bar Hill and Antermony Loch.
Other services in Croy
Why act early in Croy
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render, so the problem grows beyond the joint itself. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Why Croy customers choose us
- More than 20 years in sealant work
- Sanitary silicone with an anti-fungal additive in wet areas
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants