Glasgow · Scotland
Blairdardie External Mastic
Movement joints in Blairdardie need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Moss and dirt in joints with no sealant left
- Joints with sealant missing in places
- Leaking joints around cladding and façade panels
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Act on the first splits you see
- Keep high-pressure jets off the joints
- Clear growth from the base of walls and joints
- Never let anyone fill a movement joint with mortar
Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead and let water in behind.
Leaks behind façade panels and render often go unseen. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
External mastic in Blairdardie, done properly
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. We work on copings & trims, brickwork movement joints and joints between brick and frames, and common reasons people get in touch are movement joints filled with mortar instead of sealant and sealant that has lost its bond to the brick or render.
On a four-storey tenement, gutter joints are a long way from the street, so a leaking joint can run down the stone for months before anyone notices. For a building in Blairdardie, access is planned first, and shared parts may need the other owners to agree.
The work is covered for a year after we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.
- Where
- Blairdardie (G13, G15, G61)
- Wider area
- Glasgow
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
FAQs for Blairdardie
Can you do external mastic in Blairdardie?
Yes, Blairdardie is within the area we cover. Our work covers the whole of Scotland. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Who arranges sealant work on the shared parts of a tenement in Blairdardie?
The owners of the flats generally agree repairs to shared parts like the roof and outside walls, and many buildings have a factor to arrange it. The Tenements (Scotland) Act 2004 sets out how that works where the title deeds do not. Windows often belong to the individual flat, but it’s worth checking your deeds.
What does external mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Will the new joint stand out?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render so the joint does not draw the eye.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little.
Can landlords and businesses book you?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels in Blairdardie.
For landlords and businesses
Landlords and agents in Blairdardie can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
For anyone letting property in or around Blairdardie, several properties can be quoted together. Just tell us the addresses and what each one needs.
What affects the cost of external mastic
The quote reflects the job in front of us. We look at:
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- How many rooms, windows or areas are involved
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and give you a clear quote before any work starts.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- The rough size of the job
- The address or postcode of the job
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Do you need external mastic in Blairdardie?
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
It’s worth asking for a quote if you see:
- Sealant that has lost its bond to the brick or render
- Damp patches traced to an open external joint
- Rigid filler in a joint that should flex
- Brick movement joints where the sealant has split
Managing a site like Knightswood Secondary School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Before you book anyone
- Which sealant they’ll use, and why
- Are they insured?
- What happens if they find a problem under the old sealant
- How the colour is chosen
The process
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a handful of joints, longer for a whole elevation, and the area is left clean. For a tenement in Blairdardie, work inside your flat is between us and you, while shared parts may need the factor or neighbours to agree. It helps to know which it is when you get in touch.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Mention any sign-in or site rules at work premises
- Keep pets and children clear of the area while we work
- Tell us if parking is tricky
Getting a quote
We do not publish a price list. Instead, we give you a clear quote for your job. To get started, drop us a line at info@mrmastic.co.uk.
Advice
Walls and rooflines in Blairdardie
Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex. With historic houses such as Tenement House (about 4.2 miles south-east) nearby, there’s older building stock in the area around Blairdardie as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Homes close to St David's Parish Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. For landlords with property near Drumchapel station, outside joints that have cracked can let damp into a rental, so check them between lets.
Blairdardie is about 2 miles south-west of Bearsden, in Glasgow. We provide external mastic to householders, landlords and businesses in Blairdardie, as part of our work across Glasgow. Blairdardie is one of 183 places in Glasgow we cover.
Every address in G13, G15 and G61 is within our area for external mastic. Local streets include Mace Road, Fruin Road and Manor Road, and we cover them all. Other places close to Blairdardie include Drumchapel (1 mile north-west), Old Drumchapel (1 mile west), Westerton (1 mile north-east), Linnvale (1 mile west) and Drumry (1 mile west). Larger places within reach include Glasgow (5 miles south-east), Hillhead (3 miles south-east), Dowanhill (3 miles south-east), Woodlands (4 miles south-east), Woodside (4 miles south-east) and North Kelvinside (3 miles south-east).
Around Blairdardie
In Blairdardie, that means homes and buildings near Jordanhill College and Dawsholm Park and the streets around them. Blairdardie has its own railway station: Drumchapel station. Well-known places in the area include Drumchapel Hospital (within half a mile north) and Braehead (1.8 miles south). The countryside around Blairdardie includes Castle Hill and Kilmardinny.
Places near Blairdardie
More services for Blairdardie
Surface by surface
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible in all weathers.
What sealant work cannot fix
We will always be straight with you, so here’s what new sealant won’t do:
- Adding movement joints to masonry that has none
- Structural movement, which needs a surveyor or engineer
- Rising or penetrating damp from elsewhere in the wall
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
Joints and surfaces we work on
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Concrete & block
- Joints between brick and frames
- Copings & trims