North Lanarkshire · Scotland
Sand mastic for sash & case windows in Cleland, North Lanarkshire
Professional sand mastic in and around Cleland, with old sealant always removed completely.
- A silicone bead on a sash window that spoils the look
- Gaps where the frame meets the masonry
- Mastic that needs renewing before redecorating
Sand mastic in Cleland
Silicone on a period window often looks wrong and doesn’t suit the building. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. Common call-outs are for cement or filler used on old window joints that has cracked and failed mastic on an exposed elevation, on timber door frames, period & listed homes and stone surrounds.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
The work is covered for a year after we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.

- Place
- Cleland (ML1)
- Region
- North Lanarkshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Check the mastic when you check the paintwork
- Sort the mastic before the decorators arrive
- Leave the new mastic unpainted
- Avoid heavy scraping on the mastic joint
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
Towns and villages near Cleland
What else we do in Cleland
Cleland homes and the weather
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Historic houses such as Cambusnethan House, about 3.4 miles south, show how far back building around Cleland goes. If you let a flat or house near Cleland station, any sash windows need sound mastic to keep draughts and rain out. If you look after a building such as St. Aidan's Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Cleland is about 2 miles north of Wishaw, in North Lanarkshire. Anywhere in ML1, our applicators can take on sand mastic. Cleland is one of 89 towns and villages in North Lanarkshire we cover. You can also see our page for Glasgow, roughly 14 miles from Cleland.
Here we cover the ML1 postcode area for sand mastic. If you need sand mastic at a property on Main Street, Station Road and Aberlady Street or a nearby road, our applicators can take on the job. Neighbouring places we cover for sand mastic include Biggar Road (1 mile north), Newarthill (1 mile north-west), Hareshaw (2 miles north), Carfin (2 miles west) and Holytown (2 miles north-west). Larger places within reach include Motherwell (3 miles west), Cumbernauld (11 miles north), Coatbridge (6 miles north-west), Airdrie (5 miles north-west), Bellshill (4 miles west) and Kilsyth (13 miles north-west).
Around Cleland
Locally, jobs take us to homes and businesses close to Coltness High School and the streets around them. Cleland has its own railway station: Cleland station. Other landmarks nearby include Brandon Shopping Centre (3 miles west) and North Lanarkshire Heritage Centre (3.2 miles west). The countryside around Cleland includes Allanton House lake and Baron's Haugh RSPB Reserve.
What happens if it’s left?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in and new mastic seals them. In an older home around Cleland, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
The cost 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 work begins, so you know where you stand.
Why book with us
- Anti-fungal silicone where joints get wet
- 4.9 on Google from 180+ five-star reviews
- Fully insured
- We leave the area clean and tidy
Read our cost guide and our reviews.
What affects the quote in Cleland
We don’t publish a price list, because jobs vary so much. What we look at:
- How easy the joints are to reach
- Any working-time requirements on site
- Which sealant suits the joint
- The number of rooms or windows
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To help us quote quickly, please include:
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
- A few pictures by email, if you can
- Roughly how big the job is
For sand mastic in Cleland, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before work begins.
Surface by surface
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
If you manage several properties in or around Cleland, several properties can go on one quote. Just tell us the addresses and what each one needs.
Cleland: your questions answered
Is Cleland in your area for sand mastic?
Yes, Cleland is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and let us know what needs doing, and we’ll give you a clear quote.
Is Cleland within the area you cover?
Yes, we do. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
I’m a tenant. Can you help?
Of course. Check with your landlord; we can send the quote to them too.
How long will you be here?
Typically it takes a few hours per window, depending on the condition of the joints. Bigger jobs take longer, and we will say how long yours will take.
Is the work guaranteed?
Our 12-month guarantee applies on every job.
Can old silicone round a sash window be swapped for sand mastic?
Normally, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
What should I tell you?
Tell us what needs doing and where. We will ask anything else we need to know.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
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.
What happens on the day
We keep the work tidy and contained to the joints we are treating, so you can carry on as normal. Expect the work to take a few hours for a single window, longer for several, and we explain the cure time before we leave. For a place like Cleland, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
