Glasgow · Scotland
Sand Mastic in Colston
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Colston. Fully insured, ARBOMaster approved and guaranteed for a year.
- Wind and rain getting in round a sash window
- Silicone on a period window that looks wrong
- Patchy fillers round a sash window
How the visit works
When we arrive, we look over the joints with you first. Surfaces next to the work are protected before we start. Most jobs take a few hours per window, depending on the condition of the joints. Many homes in Scotland’s cities are tenement flats, reached through a shared close and up a common stair. For a job in Colston, tell us the floor, how the door entry system works and where we can park nearby.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
How to prepare
- Clear items away from the joints we are working on
- Let us know about parking restrictions
- Keep children and pets away from the work area
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, send an email to info@mrmastic.co.uk.
Advice
Sand mastic in Colston, done properly
We work across Colston renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand, finished to suit the masonry. Common call-outs are for gaps round a timber door in stone or brick and crumbling sand mastic round a window, across tenement windows, period & listed homes and stone surrounds.
Tenement flats in Scotland’s cities often have windows high above the street, where failing mastic is easy to miss. For a flat in Colston, access is the first thing to plan, and in a tenement the outside of the building may be a shared repair.
You are covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.
- Place
- Colston (G64, G22, G21)
- Wider area
- Glasgow
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Towns and villages near Colston
Other services in Colston
Questions from Colston
Do you work for landlords with property near Bishopbriggs station?
Yes, we work for letting agents and landlords. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we will send you a clear quote.
Do you cover Colston for sand mastic?
Yes. We work across all of Scotland, and Colston is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Can I choose the sealant colour?
We help you choose a colour that suits. The product needed can limit the range.
When will the new mastic be hard?
A skin forms quite soon, but full hardening takes longer. We’ll tell you what to expect for your job.
Can sand mastic be painted?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Why act early in Colston
New mastic over crumbling mastic will not hold. We remove the loose material first so the new mastic stays put. Scottish rain finds any gap around a frame or wall joint, and in Colston, damp can spread through stone and plaster before anyone sees it.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What you get with us
- Homes, businesses and hotels
- Fully insured
- ARBOMaster approved applicator
- Rated 4.9 stars on Google
Take a look at our cost guide and our reviews.
Landlord and commercial work in Colston
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Windows and doors in Colston
Much of Glasgow is built from red and blond sandstone, and porous sandstone needs a sealant that will not mark it. Historic houses like Tenement House (about 2.5 miles south-west) are a reminder that the area around Colston has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
In the older streets around Colston Wellpark Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Bishopbriggs Academy are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Bishopbriggs station? Then any sash windows need sound mastic to keep draughts and rain out.
Colston is about 1 mile south-west of Bishopbriggs, in Glasgow. From the centre of Colston to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Across Glasgow, we cover 183 places, and Colston is one of them.
All of G64, G22 and G21 is within our area for sand mastic, from the main roads to the quietest streets. That includes homes and businesses on Avon Road, Ashgill Road and Leehill Road. If you’re just outside Colston, we cover Stobhill (1 mile south-east), Milton (1 mile west), Parkhouse (1 mile south-west), Auchinairn (1 mile east) and Huntershill Village (1 mile south-east). Larger places within reach include Glasgow (3 miles south-west), Hillhead (3 miles south-west), Dowanhill (3 miles south-west), Woodlands (3 miles south-west), Partickhill (3 miles south-west) and Garnethill (3 miles south-west).
Landmarks near Colston
Typical jobs here are in homes near Springburn Park and the streets around them. The closest station to Colston is Bishopbriggs station, roughly 0.5 miles north-east. Well-known places in the area include Chinatown (2.3 miles south-west) and Bishop's Castle (2.5 miles south). Not far away are Lenzie Moss and Hogganfield Loch.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Cracked or broken glass
- Sashes that rattle, stick or will not open
- Crumbling stone or brickwork round the window
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think.
What we seal
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
- Timber door frames
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Check with your local planning authority if your home is listed
- Ask a joiner to look at soft timber first
- Go gently near the mastic when preparing windows
- Make sure water runs off the sill
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
How the job changes by surface
Sash and case windows
A sash window’s box frame sits in the masonry opening. Sand mastic seals the joint round it.
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
What affects the quote in Colston
You’ll get a clear quote before we start. It’s based on:
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- The size of the job
- Any mould that needs treating
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
What we need to know
There’s no need for technical detail. Just tell us:
- The type of property
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- What’s wrong with the joints now
For sand mastic in Colston, email us at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before work begins.