Glasgow · Scotland
Sand Mastic in Cowlairs
Problem with your window and door surrounds in Cowlairs? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Gaps round a timber door in stone or brick
- Mastic worn away on windows facing the weather
- Draughts and rain around sash boxes
DIY versus a professional finish
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.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
About our sand mastic in Cowlairs
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. If you have mastic that needs renewing before redecorating and mastic round period door frames that has failed, we can put it right, on tenement windows, sash and case windows and stone surrounds 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 of our work is guaranteed for twelve months, in Cowlairs and everywhere else we cover.
- Where
- Cowlairs (G22, G21, G4)
- Region
- Glasgow
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The amount of work
- How easy the joints are to reach
- The type of sealant required
- Whether there’s mould to deal with
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
Asking for a quote
To make quoting easier, let us know:
- A few photos by email, if you can
- Any access issues, like height or stairs
- What’s wrong with the joints now
- The type of property
For a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
What we cannot put right
Before you book, it’s worth knowing the limits:
- Timber that has rotted
- Crumbling stone or brickwork round the window
- Cracked or broken glass
If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before booking.
Surfaces we seal
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Brick reveals
- Tenement windows
- Timber door frames
Keeping the joints in good condition
So the new joints stay in good condition:
- Do not run silicone over sand mastic
- Inspect the joints round the windows every year or so
- Plan mastic work ahead of painting
- Ask a joiner to look at soft timber first
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
An open joint round the box lets weather through. Left, the gap tends to get bigger as more mastic falls out.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Nearby places to Cowlairs
Also in Cowlairs
Cowlairs homes and the weather
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
For landlords with property near Ashfield station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Tenement House, about 1.4 miles south-west, is one of the historic houses in the wider area around Cowlairs, and older homes nearby need a sealant that suits their walls. 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.
Cowlairs is about 2 miles south-west of Bishopbriggs, in Glasgow. If you need sand mastic in Cowlairs, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We cover Glasgow from our Crawley base, Cowlairs included. Cowlairs is one of 183 towns and villages in Glasgow where we work.
Every address in G22, G21 and G4 is covered for sand mastic. Sand mastic is available to properties on Atlas Road, Walnut Road and Cowlairs Road and the roads around them. You’ll find Cowlairs on the A803 and A879, so it’s easy for us to get to. If you’re just outside Cowlairs, we cover 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). Within a short drive, 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).
Near you in Cowlairs
Locally, jobs take us to homes and businesses close to Springburn Park and Andersonian Library. Cowlairs’s nearest station is Ashfield station, roughly 0.5 miles north-west. Other landmarks nearby include Heatherbank Museum of Social Work (1.1 miles south) and Oakbank Hospital (0.9 miles south-west). For a walk, there’s Lenzie Moss and Hogganfield Loch.
What the job involves on each surface
Sash and case windows
A sash window’s box frame sits in the masonry opening. Sand mastic seals the joint round it.
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we will confirm access.
Your questions about sand mastic in Cowlairs
Is Cowlairs in your area for sand mastic?
Yes, Cowlairs is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and let us know what needs doing, and we’ll give you a clear price.
Who arranges sealant work on the shared parts of a tenement in Cowlairs?
It usually 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 do not, and we can quote for the factor or the owners directly.
How long does sand mastic take?
Typically it takes anything from a few hours to a full day, depending on how many windows. Bigger jobs take longer, and we’ll tell you how long to expect.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
I rent my home. Can I book you?
Yes. Ask your landlord first, and we can send them the quote if that helps.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Do you work for letting agents?
Yes, often. Several properties can go on one quote.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
The process
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for a single window, longer for several, and the area is left clean. Many homes in Scotland’s cities are tenement flats, reached through a shared close and up a common stair. For a job in Cowlairs, tell us the floor, how the door entry system works and where we can park nearby.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
Getting a quote
Every job is quoted individually. Simply send an email to info@mrmastic.co.uk and describe the job and send pictures if you have them.