Glasgow · Scotland
Shettleston External Mastic
Professional external mastic in and around Shettleston, with old sealant always removed completely.
- Plants rooting in failed movement joints
- Weathered mastic that no longer stretches
- Movement joints with cracked, split or missing sealant
About our external mastic in Shettleston
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the joint does not stand out. We are often asked to deal with cracked joints where brick meets render or frames and hard, crazed mastic that has stopped moving, across brickwork movement joints, concrete & block and copings & trims.
On a four-storey tenement, gutter joints are a long way from the street, and a slow drip can stain and soak the stone for a long time before it’s spotted. For a building in Shettleston, access is planned first, and shared parts may need the other owners to agree.
Your job is guaranteed for a year, as with all our work.
- Place
- Shettleston (G32, G31)
- Region
- Glasgow
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Quotes for external mastic in Shettleston
We don’t publish a price list. The quote depends on:
- How easy the joints are to reach
- The number and length of the joints
- The product the joint needs
- Any working-time requirements on site
Leaving a failed joint normally makes the job bigger, not smaller. If you’re unsure, email us at info@mrmastic.co.uk and we will give you an honest view and a quote.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- A few photos by email, if you can
- The rough size of the job
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will take it from there.
Nearby places to Shettleston
Also in Shettleston
When to call us in Shettleston
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
Signs it’s time to call us include:
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
- Joints pointed up with cement by mistake
- Sealant that has lost its bond to the brick or render
Schools such as Eastbank Academy are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
What your quote should include
- What the cure time is
- What happens if the job turns out different
- Is VAT in the price?
- Which colour the sealant will be
External mastic in Shettleston: local notes
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. 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. Your title deeds say which parts are shared.
Letting a property close to Carntyne station? Then outside joints that have cracked can let damp into a rental, so check them between lets. Historic houses such as Provand's Lordship, about 2.7 miles west, show how far back building around Shettleston goes, and older homes nearby need a sealant that suits their walls.
Shettleston is about 2 miles north-west of Cambuslang, in Glasgow. We provide external mastic to householders, landlords and businesses in Shettleston, as part of our work across Glasgow. 183 places in Glasgow are on our list, large and small.
We cover every part of G32 and G31 for external mastic. External mastic is available to properties on Wellshot Road, Tollcross Road and Budhill Avenue. With the A89 close by, Shettleston is simple for us to get to for external mastic. If you’re just outside Shettleston, we cover Greenfield (1 mile north), Budhill (1 mile north-east), Tollcross (1 mile south), Lightburn (1 mile north) and Springboig (1 mile north-east). We also work in nearby towns such as Glasgow (4 miles west), Hillhead (5 miles west), Dowanhill (5 miles west), Woodlands (4 miles west), Woodside (4 miles north-west) and North Kelvinside (5 miles north-west).
Local landmarks in Shettleston
Around Shettleston, our work takes us to homes and buildings near St Andrew's Secondary School and Parkhead Library. For rail, the closest station is Carntyne station, roughly 0.5 miles north-west of the centre. Other landmarks nearby include Tollcross Museum (within half a mile south-west) and Lightburn Hospital (0.7 miles north). Green spaces nearby include Lenzie Moss and Cathkin Braes.
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- Movement that is more than a sealant joint can take
- Adding movement joints to masonry that has none
- Cracks in the bricks or render themselves, away from the joints
If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think before you book.
Where we work in Shettleston
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames
- Copings & trims
- Façade panels
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Get split or bare joints resealed while the damage is small
- Walk round the building once a year and look at the joints
- Keep water from gutters off the wall
- Show decorators and builders where the movement joints are
Don’t paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants aren’t designed to be painted.
An open movement joint lets rain into the wall every time it pours. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.
How the job changes by surface
Brickwork movement joints
People sometimes point up a brick movement joint by mistake. Where one has been mortared, we cut it out and reseal it with sealant.
Cladding and façade panels
Cladding and façade panels are normally separated by sealed joints. We reseal them with a sealant suited to the panel material.
Shettleston: your questions answered
Can you help a landlord with a rental near Carntyne station?
Yes, landlords and agents are among the people we work for. 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.
How is work on the outside of a tenement in Shettleston usually arranged?
Shared parts of a tenement, such as the roof and outside walls, are usually repaired with the agreement of the owners, often through a property factor. The Tenements (Scotland) Act 2004 sets out how that works where the title deeds do not. Your title deeds will say who owns the windows.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Can you seal over the old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
What is a movement joint?
It’s a deliberate gap that lets the wall expand and contract without cracking. It should be filled with flexible sealant, never mortar.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that generally means someone at home.
What is backing rod for?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding so the bead can stretch.
Should I point up the gap in my brickwork?
No. Rigid materials cannot move with the wall and the joint fails. If it has already been filled, we can usually cut it out and reseal it.
What we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on the building, depending on how much there is to do. In a city area like Shettleston, parking may be by permit or pay-and-display, so tell us what’s nearby. If you’re in a flat, let us know how we get in at the street door.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- 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.
Getting ready for the visit
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.