Glasgow · Scotland
External & façade joints in Arden, Glasgow
External mastic for Arden and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Sealant pulling away from one side of the joint
- Failed sealant between panels on a façade
- Water getting into walls through failed joints
How the visit works
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before we start. The work usually takes a few hours for a handful of joints, longer for a whole elevation. Inside a flat in Arden, the job is planned with you; outside, shared parts may need the factor or other owners involved. Tell us which applies when you book.
- 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.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Clear items away from the joints we’re working on
- Try not to wet indoor joints just before the visit
- Let us know if you’ve seen damp or leaks
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, send an email to info@mrmastic.co.uk.
Advice
External mastic for homes and businesses in Arden
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. Typical jobs include movement joints with cracked, split or missing sealant and damp patches traced to an open external joint, across render & cladding joints, brickwork movement joints and copings & trims.
In a Scottish city tenement, the roof, gutters and outside walls are shared by all the flats. In Arden, work on shared parts of a tenement is normally agreed between owners, often with a factor arranging it.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

- Place
- Arden (G46, G53, G43)
- Wider area
- Glasgow
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
More services for Arden
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Signs you need external mastic in Arden
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
It’s worth asking for a quote if you see:
- Old sealant gone brittle and cracked
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
- Rain getting behind render or cladding at a joint
If you let a flat or house near Kennishead station, split movement joints are easy to miss on a rental until damp shows inside.
What to look for in a quote
- Who does the work, and how experienced they are
- The length of the guarantee
- How the surfaces are prepared before sealing
- What insurance they hold
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Loose or hollow render, which needs re-rendering
- Movement that’s more than a sealant joint can take
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly before booking.
Joints and surfaces we work on
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Façade panels
- Copings & trims
- Joints between brick and frames
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Act on the first splits you see
- Walk round the building once a year and look at the joints
- Clear growth from the base of walls and joints
- Show decorators and builders where the movement joints are
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Different surfaces, different methods
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Why it’s worth doing now in Arden
Resealing a run of joints in one go is usually better than patching one at a time. Joints of the same age tend to fail together. Scottish rain finds any gap around a frame or wall joint, and in a tall building in Arden, damp can travel a long way before it shows.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why choose Mr Mastic in Arden
- Neat joints and a tidy finish
- Experience in homes, commercial sites and hotels
- Approved under the ARBOMaster scheme
- Quality sealants from Arbo and Everbuild
See our cost guide and what customers say.
What external mastic looks like in Arden
The west of Scotland is wetter than the east, which means movement joints and outside wall joints has to cope with a lot of rain. The Tenements (Scotland) Act 2004 sets out how owners share the upkeep of common parts like the roof and outside walls, often through a property factor. The title deeds set out which parts are common.
Schools such as St. Paul's High School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. Pollok House, about 1.4 miles north, is one of the historic houses in the wider area around Arden, and older homes nearby need a sealant that suits their walls.
Arden is about 2 miles north-west of Giffnock, in Glasgow. For external mastic in and around Arden, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We cover Glasgow from our Crawley base, Arden included. Across Glasgow, we cover 183 places, and Arden is one of them.
Every address in G46, G53 and G43 is within our area for external mastic. Local streets include Skibo Lane, Kilmuir Road and Hopeman Road, and we cover them all. Neighbouring places we cover for external mastic include Carnwadric (1 mile east), Kennishead (1 mile north-east), Southpark Village (1 mile south-west), Darnley (1 mile west) and Thornliebank (1 mile south-east). We also work in nearby towns such as Glasgow (4 miles north-east), Hillhead (5 miles north), Dowanhill (5 miles north), Woodlands (5 miles north-east), Woodside (5 miles north-east) and North Kelvinside (5 miles north-east).
Landmarks near Arden
In Arden, that means homes and buildings near Rouken Glen and the streets around them. There’s a railway station in Arden itself: Kennishead station. A little further out are Silverburn Shopping Centre (1 mile north) and Pollock Castle (2 miles south-west). Not far away are Neilston Pad and Brother Loch.
Common questions in Arden
Can you do external mastic in Arden?
Yes, Arden is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing.
Do you work for landlords with property near Kennishead station?
Yes, we work for letting agents and landlords. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear quote.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
How long does external mastic last?
That depends on the wall, the weather and the movement. Signs to watch for are cracking, hardening and gaps at the edges, and reseal at that point.
Are you insured?
Yes, we’re fully insured.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we are using and why.
How long does the job take?
Most jobs take anything from a few hours to several days, depending on the building, including the preparation. Your quote will say how long we expect yours to take.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the wall cracks somewhere else instead. Use a flexible sealant with backing rod.
