Glasgow · Scotland
Sand mastic for sash & case windows in Carntyne, Glasgow
Problem with your window and door surrounds in Carntyne? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Patchy fillers round a sash window
- Mastic round period door frames that has failed
- Old sand mastic that has cracked, crumbled or fallen out
What the job involves on each surface
Timber door frames
Round a period front door, sand mastic gives the right look.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Sand mastic in Carntyne
Sand mastic doesn’t last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. If you are dealing with gaps round a timber door in stone or brick and cement or filler used on old window joints that has cracked, we can put it right, on period & listed homes, timber door frames and sash and case windows alike.
Sash and case windows are a feature of older tenements in all four Scottish cities, though many have since been replaced. In Carntyne, as anywhere, the mastic between frame and wall is what stops draughts and rain getting in.
A one-year guarantee comes as standard.
- Place
- Carntyne (G33, G32, G31)
- Wider area
- Glasgow
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a single window, longer for several. In a city area like Carntyne, parking may be by permit or pay-and-display, so tell us what’s nearby. For flats, mention the door entry system and any shared-stair arrangements.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
How to get a quote
Need a quote? Please send an email to info@mrmastic.co.uk with a few details. We’ll explain what we’d do and send you a clear quote before work begins.
Read more
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Why act early in Carntyne
New mastic over crumbling mastic will not hold. We remove the loose material first so the new work lasts. Wind-driven rain gets into any failed joint on the outside of a city building, and in a tall building in Carntyne, damp can travel a long way before it shows.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
Why choose Mr Mastic in Carntyne
- Full insurance on every job
- We never seal over old sealant
- Rated 4.9 stars on Google
- Over 20 years’ experience
Take a look at our cost guide or what customers say.
Do you need sand mastic in Carntyne?
Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
Common reasons people contact us include:
- Tired mastic found when preparing windows for paint
- Gaps round a timber door in stone or brick
- Crumbling sand mastic round a window
- Cement or filler used on old window joints that has cracked
Historic houses such as Provand's Lordship, about 1.9 miles west, show how far back building around Carntyne goes, and older homes nearby need a sealant that suits their walls.
Questions to ask before you book
- Whether you can choose the colour
- Which sealant they’ll use, and why
- How much experience the applicator has
- What happens if they find a problem under the old sealant
FAQs for Carntyne
Do you cover Carntyne for sand mastic?
Yes, Carntyne is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Who arranges sealant work on the shared parts of a tenement in Carntyne?
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. The Tenements (Scotland) Act 2004 sets out how that works where the title deeds don’t. Your title deeds will say who owns the windows.
Do you work for landlords and businesses?
Yes, often. Several properties can go on one quote.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Can you do several jobs on one visit?
Yes. Just list everything you need.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Take care around the mastic when scraping paint
- Find out about consent before window work on a listed home
- Don’t run silicone over sand mastic
- Leave the new mastic unpainted
Don’t touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Frames and glazing around Carntyne
Carntyne is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out. 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.
If you let a flat or house near Carntyne station, any sash windows need sound mastic to keep draughts and rain out. For site and facilities teams at buildings such as St Andrew's Secondary School, the mastic around its windows and doors needs looking after like any other building’s.
Carntyne is about 3 miles east of Glasgow, in Glasgow. Every kind of property in Carntyne can book us for sand mastic, old or new, large or small. Every job comes with our one-year guarantee. Across Glasgow, we cover 183 places, and Carntyne is one of them.
Work in G33, G32 and G31 is quoted and booked the same way as anywhere else. Local streets include Rigby Avenue, Penicuik Lane and Grierson Lane, and we cover them all. Neighbouring places we cover for sand mastic include Riddrie (1 mile north), Lightburn (1 mile east), Cranhill (1 mile east), Greenfield (1 mile south-east) and Parkhead (1 mile south-west). Within a short drive, we also cover Glasgow (3 miles west), Hillhead (4 miles west), Dowanhill (5 miles west), Woodlands (4 miles west), Woodside (3 miles west) and North Kelvinside (4 miles west).
Local landmarks in Carntyne
Around Carntyne, our work takes us to homes and buildings near Whitehill Secondary School and Parkhead Library and the streets around them. Carntyne’s nearest station is Carntyne station, roughly 0.5 miles south-east of the centre. Well-known places in the area include Parkhead Hospital (0.6 miles south-west) and Bishop's Castle (1.8 miles west). The countryside around Carntyne includes Hogganfield Loch and Lenzie Moss.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Putty and glazing repairs
- Rotten sashes, sills or window boxes (a joiner’s job)
- Decisions on consent for listed homes
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer.
Surfaces we seal
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Timber door frames
- Brick reveals
- Tenement windows