Glasgow · Scotland
Sand mastic for sash & case windows in Sighthill, Glasgow
Specialist sand mastic for Sighthill: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Mastic dropping out of the joint
- A silicone bead on a sash window that spoils the look
- Window mastic to renew ahead of painting
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Go gently near the mastic when preparing windows
- Ask a joiner to look at soft timber first
- Find out about consent before window work on a listed home
- Inspect the joints round the windows every year or so
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Sand mastic in Sighthill, done properly
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. Typical jobs include gaps round a timber door in stone or brick and window mastic to renew ahead of painting, on sash and case windows, brick reveals and stone surrounds.
Sash and case windows are a feature of older tenements in all four Scottish cities, though many have since been replaced. Whether you are in a tenement flat or a house in Sighthill, the joint between frame and wall is what keeps the weather out.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Sighthill (G21, G4, G2)
- Region
- Glasgow
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Different surfaces, different methods
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Sash and case windows
A sash window’s box frame sits in the masonry opening. Sand mastic seals the joint round it.
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a single window, longer for several and we leave things clean and tidy. Inside a flat in Sighthill, the job is planned with you; outside, shared parts may need the factor or other owners involved. It helps to know which it is when you get in touch.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- On commercial sites, let us know about site rules
- Mention any tricky access
- Move anything stored near the joints
Ask for a quote
For a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
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Nearby places to Sighthill
Other services in Sighthill
Frames and glazing around Sighthill
Under the Tenements (Scotland) Act 2004, shared parts of a tenement, such as the roof and outside walls, are looked after by the owners together, often through a property factor. Who owns the windows depends on the title deeds. The west of Scotland is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out.
For site and facilities teams at buildings such as St. Roch's Secondary School, its window and door frames need their mastic kept sound, just like a home’s. Historic houses such as Provand's Lordship, about 0.6 miles south, show how far back building around Sighthill goes, and older homes nearby need a sealant that suits their walls. If you let a flat or house near Barnhill station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Sighthill is about 1 mile east of Woodside, in Glasgow. Anywhere in G21, our applicators can take on sand mastic. Our area takes in 183 places across Glasgow, from the larger towns to small villages.
Our applicators cover all of the G21, G4 and G2 postcode area for sand mastic. That includes homes and businesses on St James Road, Stirling Road and Pinkston Road. Sighthill sits on or near the A804. If you’re just outside Sighthill, we cover Royston (1 mile south-east), Townhead (1 mile south-west), Port Dundas (1 mile west), Old Balornock (1 mile east) and Blochairn (1 mile east). Larger places within reach include Dowanhill (3 miles west), Partickhill (3 miles west), Kelvinside (3 miles west), Hyndland (3 miles west), Langside (4 miles south-west) and Yoker (6 miles west).
Around Sighthill
We work in homes and buildings around Our Lady of Good Counsel Church, 55-57 Cochrane Street pub and Andersonian Library. For rail, the closest station is Barnhill station, roughly 0.7 miles north-east of the centre. Other landmarks nearby include Canniesburn Hospital (under half a mile south) and Heatherbank Museum of Social Work (0.6 miles south-west). Green spaces nearby include Lenzie Moss and Hogganfield Loch.
Sighthill: your questions answered
I let a flat near Barnhill station. Can you help?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear price.
Is Sighthill in your area for sand mastic?
Yes. We work across all of Scotland, and Sighthill is part of that. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Is the work guaranteed?
Our 12-month guarantee applies to all our work.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Is sand mastic better than silicone for my windows?
Sand mastic usually suits period timber windows best. Modern frames normally suit a flexible sealant, and we will explain why.
What affects the quote in Sighthill
We quote each job individually. These are the things that affect it:
- Any mould that needs treating
- How easy the joints are to reach
- The size of the job
- How many areas need sealing
What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts.
Helping us quote
When you call or email, it’s useful to know:
- Where the property is
- What’s wrong with the joints now
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
Want a quote for sand mastic? Please email us at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Leave it or put it right?
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic won’t stop the gaps and traditional guidance is to leave the new mastic unpainted. For landlords in Sighthill, damp and leaks can be a Repairing Standard issue, so failed sealant is best replaced before it becomes a complaint.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Sighthill
- An ARBOMaster approved applicator
- Rated 4.9 stars on Google
- 20+ years of sealant experience
- Any old sealant cut out fully, not covered over
Read what affects the cost and customer reviews.
Landlords, agents and businesses in Sighthill
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
When something else is needed
We will not take on work that won’t last, so here’s what sealant can’t put right:
- Sashes that rattle, stick or will not open
- Decayed frames that need repair
- Decisions on consent for listed homes
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly before you book.
Joints and surfaces we work on
- Sash and case windows
- Tenement windows
- Period & listed homes
- Stone surrounds
- Timber door frames
- Brick reveals