North Lanarkshire · Scotland
Sand mastic for sash & case windows in Shotts, North Lanarkshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Shotts, backed by a 12-month guarantee. Ask us for a quote.
- Modern sealant on a period surround
- Cracked mastic round a front door frame
- Crumbling sand mastic round a window
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. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
Why Shotts clients choose us
- Approved under the ARBOMaster scheme
- 180+ five-star Google reviews
- More than 20 years in sealant work
- We never seal over old sealant
Take a look at our cost guide or what customers say.
How we handle sand mastic in Shotts
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties where a modern sealant bead would stand out. We work on sash and case windows, period & listed homes and timber door frames, and common reasons people get in touch are mastic dropping out of the joint and gaps where the frame meets the masonry.
In and around a place like Shotts, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Shotts (ML7)
- Wider area
- North Lanarkshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Shotts: your questions answered
Will you come out to Shotts?
Yes. Shotts is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Can you do sand mastic in Shotts?
Yes. Our work covers the whole of Scotland, and Shotts is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing, and we will give you a clear price.
Do you work for hotels and businesses?
Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.
How long does sand mastic take?
As a guide, most jobs take a few hours for a single window, longer for several. Larger jobs naturally take longer, and we will tell you how long to expect.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Is sand mastic better than silicone for my windows?
Sand mastic generally suits period timber windows best. On modern frames, we’d normally use a flexible sealant, and we’ll explain why.
Frames and glazing around Shotts
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
For landlords with property near Shotts station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Shotts is about 6 miles north-east of Wishaw, in North Lanarkshire. From the centre of Shotts to the outskirts, we cover sand mastic for every kind of property. 89 places in North Lanarkshire are on our list. You can also see our page for Glasgow, about 19 miles away.
All of ML7 is within our area for sand mastic, from the main roads to the quietest streets. Local streets include Station Road, Main Street and Regal Grove, all of which we cover. Other places close to Shotts include Burnbrae (1 mile south), Torbothie (1 mile east), Springhill (1 mile south-east), Eastfield (3 miles north-east) and Harthill (3 miles north-east). We also work in nearby towns such as Motherwell (7 miles west), Cumbernauld (12 miles north-west), Coatbridge (9 miles west), Airdrie (8 miles north-west), Wishaw (6 miles south-west) and Bellshill (9 miles west). Shotts is one of the larger places we cover in North Lanarkshire.
Landmarks near Shotts
Shotts has its own railway station: Shotts station. Well-known places in the area include Murdostoun Castle (3.5 miles south-west) and Shotts Heritage Centre (within half a mile east). For a walk, there’s Allanton House lake.
Aftercare tips
So the new joints stay in good condition:
- Sort the mastic before the decorators arrive
- Avoid patching sand mastic with silicone
- Go gently near the mastic when preparing windows
- Check the mastic when you check the paintwork
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look rather than patching it.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
How it works
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it generally takes anything from a few hours to a full day, depending on how many windows. Around Shotts, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Clear the area around the work
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
Read more
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Common problems we fix in Shotts
Over the years, sand mastic weathers. It hardens, cracks and starts to come away from the frame or the masonry.
Common reasons people contact us are:
- Silicone on a period window that looks wrong
- Crumbling sand mastic round a window
- Window mastic to renew ahead of painting
- Old cement repairs round a window that have failed
Around Shotts, as everywhere, sand mastic is only as good as the preparation behind it.
What to look for in a quote
- How the joint is cleaned and prepared
- The length of the guarantee
- Whether you can choose the colour
- Is the old sealant removed completely?
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Surface by surface
Brick reveals
We rake out the old mastic and pack deep voids before the new mastic goes in.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.