North Lanarkshire · Scotland
Sand Mastic in High Banton
Our applicators work in High Banton on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Old sand mastic that has cracked, crumbled or fallen out
- Cement or filler used on old window joints that has cracked
- A silicone bead on a sash window that spoils the look
How we handle sand mastic in High Banton
Sand mastic does not last for ever and gaps open up round the frame. We rake it out and renew it and tidies the surround. We are often asked to deal with old cement repairs round a window that have failed and failed mastic on an exposed elevation, across tenement windows, stone surrounds and sash and case windows.
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.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- High Banton (G65)
- Region
- North Lanarkshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Windows and doors in High Banton
High Banton is in the west of Scotland, which is wetter than the east, which means the mastic around older windows and doors has to cope with a lot of rain. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
In the older streets around Banton Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
High Banton is about 3 miles north of Cumbernauld, in North Lanarkshire. We provide sand mastic to homes and businesses in High Banton and nearby. Across North Lanarkshire, we cover 89 places, High Banton among them. For nearby work, see our Glasgow page (14 miles or so).
We work across the G65 postcode area for sand mastic and the streets around it. Neighbouring places we cover for sand mastic include Banton (1 mile south), Dullatur (2 miles south), Kilsyth (2 miles south-west), Craigmarloch (3 miles south) and Croy (3 miles south-west). Within a short drive, we also cover Motherwell (14 miles south), Cumbernauld (3 miles south), Coatbridge (10 miles south), Airdrie (9 miles south), Bellshill (12 miles south) and Burnfoot (9 miles south).
Landmarks near High Banton
High Banton’s nearest station is Croy station, roughly 3 miles south of the centre. A little further out are Antonine Centre (3.5 miles south) and Colzium Museum (1.4 miles south-west). For a walk, there’s Myot Hill.
When something else is needed
To be straight with you, some problems need a different trade:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Crumbling stone or brickwork round the window
- Whether work needs listed building consent
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly.
Joints and surfaces we work on
- Sash and case windows
- Brick reveals
- Tenement windows
- Timber door frames
- Period & listed homes
- Stone surrounds
What we do, step by step
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the work takes a few hours per window, depending on the condition of the joints for a typical job. Somewhere like High Banton may be a longer drive, and the journey is planned ahead. 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.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Preparing for the visit
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- 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 add photos by email if you can.
Advice
Places near High Banton
Also in High Banton
Surface by surface
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we’ll confirm access.
Sash and case windows
A sash window’s box frame sits in the masonry opening. Sand mastic seals the joint round it.
Signs you need sand mastic in High Banton
Timber swells and shrinks with the weather. The movement cracks the mastic little by little.
Keep an eye out for these signs:
- Cracked mastic round a front door frame
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
- Mastic that needs renewing before redecorating
Rented homes near Croy station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Questions to ask before you book
- What happens if they find a problem under the old sealant
- Who turns up on the day
- Whether you can choose the colour
- When the joint can take water or movement
Keeping the joints in good condition
Looking after new joints is easy:
- Keep sills and gutters clear so water drains away
- Check the mastic when you check the paintwork
- Find out about consent before window work on a listed home
- Plan mastic work ahead of painting
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.
Your questions about sand mastic in High Banton
Is High Banton in your area for sand mastic?
Yes, High Banton is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Do you work for landlords with property near Croy station?
Yes, we work for landlords and letting agents. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you offer different sealant colours?
Most of the time, yes. We’ll tell you which colours the right product comes in and agree one before we start.
Is the work guaranteed?
There’s a 12-month guarantee on every job.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Is it possible to take out silicone and use sand mastic instead?
Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
DIY sealant or a professional job?
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.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Landlord and commercial work in High Banton
Housing providers, facilities teams and property managers book us too in High Banton and across North Lanarkshire. We can quote a run of properties together.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
