Glasgow · Scotland
External & façade joints in Summerston, Glasgow
Movement joints in Summerston need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Water getting into walls through failed joints
- Old sealant gone brittle and cracked
- Gaps where render, brick and frames meet
What external mastic looks like in Summerston
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. 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.
Letting a property close to Summerston station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies. Schools such as John Paul Academy are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Summerston is about 2 miles south-east of Bearsden, in Glasgow. From the centre of Summerston to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Summerston is one of 183 towns and villages in Glasgow where we work.
Work in G20, G23 and G61 works the same way as everywhere else we cover. If you need external mastic at a property on Torrin Road, Cadder Road and Harris Road or a nearby road, we can help. Neighbouring places we cover for external mastic include Bardowie (2 miles north), Bishopbriggs (3 miles east), Cadder (3 miles north-east), Balmore (3 miles north-east) and Baldernock (3 miles north). Further out, we also cover Glasgow (3 miles south), Garnethill (3 miles south), Anderston (3 miles south), Calton (4 miles south-east), Kelvingrove (3 miles south) and Blythswood Hill (3 miles south).
Around Summerston
In Summerston, that means homes and buildings near Dawsholm Park. There’s a railway station in Summerston itself: Summerston station. Nearby you’ll also find Ruchill Hospital (1.5 miles south-east) and Glasgow Museum of Transport (2.4 miles south). Open spaces near Summerston include Lenzie Moss and Castle Hill.
External mastic in Summerston, done properly
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 render & cladding joints, concrete & block and joints between brick and frames, and people most often call us about moss and dirt in joints with no sealant left and panel joints letting water in.
Stone-built tenements in Scotland’s cities share their roof, gutters and outside walls between every flat in the building. For a tenement in Summerston, repairs to shared parts are normally agreed between the owners, often through a property factor.
All our work is covered by a 12-month guarantee.
- Place
- Summerston (G20, G23, G61)
- Wider area
- Glasgow
- Cover
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Common problems we fix in Summerston
If plants are growing out of a joint, the sealant has normally failed or was never there. Roots and dirt hold water against the wall and make things worse.
If you can see any of these, it’s time to have the joints looked at:
- Leaking joints around cladding and façade panels
- Movement joints with cracked, split or missing sealant
- Hard, crazed mastic that has stopped moving
- Gaps where render, brick and frames meet
Historic houses such as Tenement House, about 2.6 miles south, show how far back building around Summerston goes, and older homes nearby need a sealant that suits their walls.
What your quote should include
- How long the guarantee is
- What happens if they find a problem under the old sealant
- Whether you can choose the colour
- Whether they seal over old material or remove it
Different surfaces, different methods
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant in a colour to suit the brick.
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.
What we can’t put right
A few problems are outside what sealant work can do:
- Subsidence or other structural problems
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
What we seal
- Copings & trims
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Façade panels
- Joints between brick and frames
Common questions in Summerston
Do you work for landlords with property near Summerston station?
Yes, rental work is part of what we do. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.
Who arranges sealant work on the shared parts of a tenement in Summerston?
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. Where the title deeds are silent, the Tenements (Scotland) Act 2004 fills the gaps. Your title deeds will say who owns the windows.
Do the sealants smell?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Is the work guaranteed?
Yes. Every job comes with a one-year guarantee.
Can you reach joints on upper floors?
That depends on the building and the joints. Where joints can be reached safely, we’ll do them. Give us some details and we will confirm the access.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
How long before the joint can be used?
It depends on the product and the conditions. Before we leave, we will tell you the cure time.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Point out the joints to other trades
- Don’t let climbing plants root in the sealant
- Never let anyone fill a movement joint with mortar
- Check the sealant is paintable before painting near it
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
Act while the splits are small. At that stage it’s a simple cut out and reseal.
Also near Summerston
More services for Summerston
How we quote for external mastic
The quote reflects the job in front of us. We take into account:
- How many rooms, windows or areas are involved
- Access and height
- The size of the job
- The type of sealant required
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
Helping us quote
To help us quote quickly, please include:
- Access, such as stairs, a lift or height
- The problem you’ve noticed
- Where the property is
- A few photos by email, if you can
Every job is quoted individually, so the first step is telling us about yours. Simply send an email to info@mrmastic.co.uk and describe the job, and pictures are welcome.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes anything from a few hours to several days, depending on the building from start to finish. Inside a flat in Summerston, the job is planned with you; outside, shared parts may need the factor or other owners involved. Tell us which applies when you book.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Tell us if parking is tricky
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.