Glasgow · Scotland
Glazing & conservatory sealant in Cowlairs, Glasgow
Professional glazing silicone in and around Cowlairs, with old sealant always removed completely and a 12-month guarantee.
- Failed joints on frameless glass
- New silicone smeared over old sealant
- Mouldy sealant around glass panels
Glazing silicone in Cowlairs, done properly
Glazing silicone is a maintenance item. Weather and movement take their toll and cracked joints let water in. Resealing puts that right. If you are dealing with stained, discoloured glazing silicone and sealant that was laid over old silicone and failed, we can put it right, on shower screens, glass-to-glass joints and conservatory frames alike.
Tenement flats in Scotland’s cities often have windows high above the street, where failing mastic is easy to miss. Access is the first thing to plan for a job in Cowlairs, and in a tenement the outside of the building may be a shared repair.
All our work is covered by our one-year guarantee.

- Location
- Cowlairs (G22, G21, G4)
- Region
- Glasgow
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours, depending on how many joints need doing and we leave things clean and tidy. In a city area like Cowlairs, parking may be by permit or pay-and-display, so tell us what’s nearby. If you are in a flat, let us know how we get in at the street door.
- We find where water is getting in and check whether it’s a sealant joint.
- Old silicone is cut away from the glass and frame without scratching either.
- The glass and frame are cleaned and degreased.
- Glazing silicone suited to the joint is applied and tooled.
- We look over every joint and, where we can, test it with water.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Let us know about earlier repairs to the joints
- Let us know about stairs, lifts or work at height
How to get a quote
Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. We’ll explain what we’d do and send you a clear quote before any work starts.
Advice
What affects the cost of glazing silicone
For a quick quote, just ask. What matters most is:
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- Which sealant suits the joint
- The amount of work
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
What to tell us for a quote
When you call or email, these details help:
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
- Where the job is, and your postcode
Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job, and we will come back to you with a quote.
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Questions from Cowlairs
How do repairs to the shared parts of a tenement in Cowlairs get organised?
It normally goes through the owners together, or through the factor if the building has one. The Tenements (Scotland) Act 2004 sets the rules for common parts if the deeds don’t, and we can quote for the factor or the owners directly.
Can you help a landlord with a rental near Ashfield station?
Yes, rental work is part of what we do. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear price.
Do you guarantee glazing sealant work?
You get our 12-month guarantee on all our work.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you when we finish.
Is it possible to redo the silicone on a shower screen?
Yes, it’s a common job. The screen is resealed with anti-fungal silicone suited to bathrooms.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
How long does glazing silicone take?
Most jobs take a few hours for most jobs. Your quote will say how long we expect yours to take.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Look over the glazing joints once a year
- Open vents or windows to let moisture out
- Use a gentle glass cleaner and a soft cloth
- Squeegee the shower screen after each use
Keep the new joints dry for as long as we advise so the silicone can set properly. From then on, a mild glass cleaner is all it needs.
Act on black or lifting silicone early. Peeling silicone lets water in behind and the leak gets worse.
Places near Cowlairs
Other services in Cowlairs
What the job involves on each surface
Glass-to-frame joints
Old sealant is removed carefully from the glass and reseal with glazing silicone.
Rooflights
Rooflight leaks can come from the sealant or the roof. We check which it is.
Windows and doors in Cowlairs
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Glasgow’s tenements are largely red and blond sandstone, and sandstone is porous, so any sealant against it has to be one that will not stain or attack it.
Rented homes near Ashfield station change hands often, and glazing joints are worth checking at the end of a tenancy, before a small leak grows. Schools such as St. Roch's Secondary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Tenement House, about 1.4 miles south-west, is one of the historic houses in the wider area around Cowlairs.
Cowlairs is about 2 miles south-west of Bishopbriggs, in Glasgow. Whether you’re in the middle of Cowlairs or further out, glazing silicone is available for homes and businesses alike. Cowlairs is one of 183 places in Glasgow we cover.
Every address in G22, G21 and G4 is within our area for glazing silicone. Glazing silicone is available to properties on Atlas Road, Walnut Road and Cowlairs Road and the roads around them. Cowlairs sits on or near the A803 and A879, which makes travel easy. Close by, we work in Possilpark (1 mile north-west), Parkhouse (1 mile north-west), Port Dundas (1 mile south-west), Hamiltonhill (1 mile west) and Sighthill (1 mile south). Further out, we also cover Partickhill (3 miles west), Hyndland (3 miles west), Langside (4 miles south), Yoker (5 miles west), Partick (3 miles west) and Mount Florida (4 miles south).
Around Cowlairs
Locally, jobs take us to homes and businesses close to Springburn Park and Andersonian Library. The closest station to Cowlairs is Ashfield station, about 0.5 miles north-west. Nearby you will also find Heatherbank Museum of Social Work (1.1 miles south) and Oakbank Hospital (0.9 miles south-west). Green spaces nearby include Lenzie Moss and Hogganfield Loch.
Why it’s worth doing now in Cowlairs
Replacing a conservatory roof is major work. If the leak is a failed sealant joint renewing the joint is the simpler fix. If it’s the roof itself, we’ll tell you. In a Scottish city tenement, failed sealant affects more than one flat: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please email us at info@mrmastic.co.uk and we’ll talk you through it.
What you get with us
- A sealant colour to suit the surroundings
- More than 20 years in sealant work
- White, clear, grey or another colour, product permitting
- Anti-fungal sanitary silicone in wet areas
See our cost guide or what customers say.
Landlords, agents and businesses in Cowlairs
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Landlords and letting agents in Cowlairs can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
