East Renfrewshire · Scotland
Arthurlie External Mastic
External mastic in Arthurlie from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Weathered mastic that no longer stretches
- Leaking joints around cladding and façade panels
- Movement joints filled with mortar instead of sealant
External mastic for homes and businesses in Arthurlie
Short cuts in external joints show up within a season or two. Overfilled joints, missing backing rod and sealant laid over old sealant rarely last long. We take the old material out and do it properly. Common call-outs are for joints with sealant missing in places and weeds or debris growing in open joints, on brickwork movement joints, joints between brick and frames and copings & trims.
In and around a place like Arthurlie, many buildings face open ground and take the full weather. Outside joints on exposed walls work hard, so they need a sealant that moves with the building.
Your job is guaranteed for a year, as with all our work.
- Location
- Arthurlie (G78)
- Region
- East Renfrewshire
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
The process
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours to a few days, depending on the length of joint and the access, depending on the size of the job. In smaller Scottish places, parking is generally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- 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.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Keep pets and children clear of the area while we work
- Move anything stored near the joints
How to get a quote
Every job is quoted individually. Simply drop us a line at info@mrmastic.co.uk and describe the job.
Related advice
Leave it or put it right?
Water gets in through a failed movement joint, behind render and cladding. Dealing with it early keeps the repair to the joint, instead of the wall and finishes around it. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Arthurlie
- Sealant colour chosen to suit
- White, clear, grey or coloured to suit, where the product allows
- More than 20 years in sealant work
- ARBOMaster approved applicator
Read how sealant jobs are priced and customer reviews.
Places near Arthurlie
More services for Arthurlie
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
For anyone letting property in or around Arthurlie, several properties can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
FAQs for Arthurlie
Do you cover smaller places like Arthurlie?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Barrhead station. Can you help?
Yes, landlords and agents are among the people we work for. You can email us at info@mrmastic.co.uk with the details for a clear quote.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
Can you match the colour of my brickwork?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin.
What should I tell you?
A short description and the location. If we need more, we will ask.
Can you reach joints on upper floors?
It depends on the height and the site. Low-level joints are straightforward; for higher ones, send details and we’ll confirm the access.
Common problems we fix in Arthurlie
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
Any of these means the joints need attention:
- Weeds or debris growing in open joints
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Movement joints with cracked, split or missing sealant
Schools such as Barrhead High School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
What your quote should include
- How the colour is chosen
- How long the guarantee is
- Whether VAT is included
- Whether they’re fully insured
What we cannot put right
Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. It won’t solve:
- Adding movement joints to masonry that has none
- Cracked brickwork or render that needs a builder or plasterer
- Render that is blown, hollow or coming away
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
Joints and surfaces we work on
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Concrete & block
- Joints between brick and frames
External mastic in Arthurlie: local notes
Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex. Arthurlie is in the west of Scotland, which is wetter than the east, which means movement joints and outside wall joints has to cope with a lot of rain.
Rented homes near Barrhead station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. Homes close to Bourock Parish Church include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Arthurlie is about 3 miles north-west of Newton Mearns, in East Renfrewshire. Jobs in Arthurlie get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 17 towns and villages across East Renfrewshire. There’s also a page for Glasgow, roughly 6 miles from Arthurlie.
Here we cover the G78 postcode area for external mastic. Streets in the area include Water Road, Park Avenue and Main Street, and we cover them all. With the A736 close by, Arthurlie is easy for our applicators to reach for external mastic. Neighbouring places we cover for external mastic include Barrhead (1 mile north-east), Auchenback (1 mile east), Patterton (3 miles east), Deaconsbank (3 miles east) and Newton Mearns (3 miles south-east). Larger places within reach include Giffnock (4 miles east), Clarkston (4 miles east), Eaglesham (6 miles south-east), Busby (5 miles east), Carmunnock (6 miles east) and Jackton (7 miles south-east).
Around Arthurlie
The nearest railway station is Barrhead station, about 0.5 miles north. Nearby you’ll also find Barrhead Museum (0.5 miles north-east) and Dykebar Hospital (1.9 miles north). Open spaces near Arthurlie include Neilston Pad and Brother Loch.
DIY versus a professional finish
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Different surfaces, different methods
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. We reseal their joints with backing rod and a flexible product.
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind and helps it last.