North Lanarkshire · Scotland
Sand mastic for sash & case windows in Croy, North Lanarkshire
Sand mastic across Croy and nearby, with old sealant always removed completely and a 12-month guarantee.
- Old cement repairs round a window that have failed
- Draughts and rain around sash boxes
- Old sand mastic that has cracked, crumbled or fallen out
When it isn’t the sealant
Before you book, it’s worth knowing the limits:
- Timber that has rotted
- Putty and glazing repairs
- Masonry that needs repairing
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly before booking.
Surfaces we seal
- Stone surrounds
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Timber door frames
Sand mastic in Croy
A silicone bead around a sash window can look out of place and isn’t always the right material. Sand mastic is the traditional choice and we can swap the silicone for it. We work on sash and case windows, timber door frames and period & listed homes, and the jobs we see most are open joints round the window box and weathered mastic on the most exposed windows.
Outdoor sealant needs a dry surface, so window work around Croy is planned around the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- Croy (G65)
- Wider area
- North Lanarkshire
- Cover
- A year, on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What affects the quote in Croy
Call for a quick quote. What matters most is:
- Any mould that needs treating
- The number and length of the joints
- The type of sealant required
- How many areas need sealing
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- How we’d reach the joints
- Pictures of the joints, sent by email
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
How the visit works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a single window, longer for several. In smaller Scottish places, parking is normally less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Keep children and pets away from the work area
- Mention any leaks or damp you’ve noticed
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, send an email to info@mrmastic.co.uk.
Advice
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep sills and gutters clear so water drains away
- Get any rot dealt with first
- Renew mastic before redecorating the windows
- Avoid heavy scraping on the mastic joint
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Common questions in Croy
I let a flat near Croy station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear price.
Is Croy within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we’re done.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Can you seal over the old sealant?
No. The old sealant always comes out first.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
What’s sand mastic made of?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Do I need permission for sand mastic on a listed building?
Check with your local planning authority. They decide whether consent is needed for work to your windows.
Sand mastic in Croy: local notes
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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Rented homes near Croy station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. For site and facilities teams at buildings such as Our Lady's High, its window and door frames need their mastic kept sound, just like a home’s.
Croy is about 2 miles west of Cumbernauld, in North Lanarkshire. We provide sand mastic to homes and businesses in Croy. Croy is one of 89 places in North Lanarkshire where we work for sand mastic. Our Glasgow page covers work nearby, about 12 miles away.
All of G65 is within our area for sand mastic. Streets in the area include Mcsparran Road, Overcroy Road and Cuilmuir Terrace, and we cover them all. We also cover the places around Croy: Auchinstarry (1 mile west), Smithstone (1 mile south), Craigmarloch (1 mile east), Balloch (1 mile south-east) and Dullatur (1 mile north-east). Within a short drive, we also cover Motherwell (11 miles south), Coatbridge (7 miles south), Airdrie (7 miles south), Wishaw (13 miles south), Bellshill (10 miles south) and Burnfoot (6 miles south).
Landmarks near Croy
There’s a railway station in Croy itself: Croy station. A little further out are Cumbernauld Castle (2.8 miles east) and Colzium Museum (1.6 miles north). Open spaces near Croy include Bar Hill and Antermony Loch.
Landlord and commercial work in Croy
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
What else we do in Croy
Why deal with it now?
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new mastic stays put. In a place like Croy, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear quote for the lot.
What you get with us
- One-year guarantee on every job
- 180+ five-star Google reviews
- Anti-fungal silicone where joints get wet
- We never seal over old sealant
Take a look at our cost guide and what customers say.
Different surfaces, different methods
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.