South Lanarkshire · Scotland
Lanark Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Lanark, with a one-year guarantee on every job. Ask us for a quote.
- Cement or filler used on old window joints that has cracked
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic that needs renewing before redecorating
Sand mastic for homes and businesses in Lanark
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It suits period and listed homes, where modern sealant can look out of place. If you are dealing with silicone on a period window that looks wrong and draughts and rain around sash boxes, we can help.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Lanark (ML11)
- Wider area
- South Lanarkshire
- Cover
- 12 months on all our work
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Do you need sand mastic in Lanark?
Water gets into small cracks in the mastic and pushes it out. Exposed elevations normally fail first.
Keep an eye out for any of the following:
- Gaps where the frame meets the masonry
- Tired mastic found when preparing windows for paint
- Old cement repairs round a window that have failed
- Crumbling sand mastic round a window
If you let a flat or house near Lanark station, any sash windows need sound mastic to keep draughts and rain out.
Before booking anyone
- What insurance they hold
- The length of the guarantee
- How the joint is cleaned and prepared
- What product goes in the joint
Nearby places to Lanark
What else we do in Lanark
Frames and glazing around Lanark
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Schools such as Lanark Grammar School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Lanark is about 9 miles south-east of Wishaw, in South Lanarkshire. For sand mastic in and around Lanark, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We are based in Crawley and cover South Lanarkshire, Lanark included. We cover 139 towns and villages across South Lanarkshire, large and small. There’s also a page for Glasgow, roughly 23 miles from Lanark.
We work across the ML11 postcode area for sand mastic and the streets around it. Sand mastic is available to properties on High Street, Kildare Road and Kildare Place and the roads around them. With the A72 and A73 close by, Lanark is simple for us to get to for sand mastic. We also cover the places around Lanark: New Lanark (1 mile south), Kirkfieldbank (1 mile west), Cleghorn (2 miles north-east), Nemphlar (2 miles west) and Cartland (2 miles north-west). Within a short drive, we also cover Hamilton (13 miles north-west), Blantyre (15 miles north-west), Larkhall (9 miles north-west), Carluke (5 miles north-west), Strathaven (11 miles west) and Bothwell (15 miles north-west). As one of the bigger places in South Lanarkshire, Lanark has every kind of property, from flats to offices.
Landmarks near Lanark
Around Lanark, our work takes us to homes and buildings near Delves Park and Maisies pub, among other places. Lanark has its own railway station: Lanark station. Nearby you will also find Royal Burgh of Lanark Museum (less than half a mile west) and Lanark Castle (0.5 miles south-west). Open spaces near Lanark include Lanark Loch and Black Hill.
FAQs for Lanark
Do you work for landlords with property near Lanark station?
Yes, rental work is part of what we do. You can email us at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before we start.
Is Lanark in your area for sand mastic?
Yes, Lanark is within the area we cover. We work across all of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing.
Is sand mastic better than silicone for my windows?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Where is Mr Mastic based?
We work from Crawley. We cover Lanark and the rest of South Lanarkshire.
Do the sealants smell?
There can be a smell while the sealant cures. Ventilation helps.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
How the visit works
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a single window, longer for several. Somewhere like Lanark 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.
- 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.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
How to prepare
- Mention any leaks or damp you’ve noticed
- Mention any sign-in or site rules at work premises
- Keep pets and children clear of the area while we work
Ask for a quote
We do not publish a price list, because every job is different. Instead, we give you a clear price for your job. To get started, drop us a line at info@mrmastic.co.uk.
Related advice
What sealant work cannot fix
We’ll always be straight with you, so here’s what sealant cannot fix:
- Decayed frames that need repair
- Damaged stone surrounds
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly.
What we seal
- Timber door frames
- Brick reveals
- Period & listed homes
- Tenement windows
- Sash and case windows
- Stone surrounds
Why it’s worth doing now in Lanark
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Around Lanark, water from a failed joint in an older stone home can soak into timber and plaster.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What you get with us
- Approved under the ARBOMaster scheme
- We are fully insured
- 180+ five-star Google reviews
- Tidy, careful work
Take a look at our cost guide and customer reviews.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Ask us before painting near the mastic
- Check the mastic when you check the paintwork
- Keep sills and gutters clear so water drains away
- Plan mastic work ahead of painting
Leave the new mastic alone while it firms up. It forms a skin fairly soon, but takes longer to harden fully.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.
Surface by surface
Sash and case windows
The mastic round a sash window is on show, so a neat, even finish matters.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.