North Lanarkshire · Scotland
Liquo Sand Mastic
Sand mastic in Liquo from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Open joints round the window box
- Cement or filler used on old window joints that has cracked
- Wind and rain getting in round a sash window
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
How we handle sand mastic in Liquo
Sand mastic suits most period window surrounds. Newer frames generally get a flexible sealant instead, and we’ll talk through which suits your home. We work on period & listed homes, sash and case windows and tenement windows, and people most often call us about old cement repairs round a window that have failed and mastic worn away on windows facing the weather.
In and around a place like Liquo, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
We stand behind the work with a one-year guarantee, so you are covered after we have gone.
- Location
- Liquo (ML7)
- Wider area
- North Lanarkshire
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Don’t paint over the new mastic
- Do not run silicone over sand mastic
- Inspect the joints round the windows every year or so
- Ask a joiner to look at soft timber first
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
What the job involves on each surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
The process
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to a full day, depending on how many windows for a typical job. Outdoor work around Liquo depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
Getting a quote
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, send an email to info@mrmastic.co.uk.
Read more
Windows and doors in Liquo
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. 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.
Rented homes near Hartwood station change hands often, and any sash windows need sound mastic to keep draughts and rain out. In and around Liquo, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Liquo (Gaelic: Bowhousebog) is about 4 miles north-east of Wishaw, in North Lanarkshire. Across the ML7 area, our applicators can take on sand mastic. We cover 89 towns and villages across North Lanarkshire. Our Glasgow page covers work nearby, about 17 miles away.
Our applicators cover all of ML7 for sand mastic. We also cover the places around Liquo: Hartwood (1 mile north), Allanton (1 mile south), Bonkle (1 mile south-west), Burnbrae (2 miles east) and Shotts (2 miles north-east). We also work in nearby towns such as Motherwell (6 miles west), Cumbernauld (12 miles north-west), Coatbridge (8 miles north-west), Airdrie (7 miles north-west), Wishaw (4 miles south-west) and Bellshill (7 miles west).
Landmarks near Liquo
There’s a railway station in Liquo itself: Hartwood station. A little further out are Shotts Heritage Centre (1.9 miles north-east) and Cleland Hospital (2.8 miles west). Not far away are Allanton House lake.
More services for Liquo
Liquo questions
Do you cover Liquo for sand mastic?
Yes. Our work covers the whole of Scotland, and Liquo is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Is Liquo within the area you cover?
Yes, Liquo is covered. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Where are you based?
We work from Crawley. Our applicators cover Liquo.
Can you replace silicone on a period window with sand mastic?
Yes. We remove the silicone and clean the joint, then point it with sand mastic.
Can sand mastic be painted?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
What exactly is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Can you quote for more than one area?
Yes. Just list everything you need and you will get one quote.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Timber that has rotted
- Sash cords, weights and draught-proofing of the sashes
- Crumbling stone or brickwork round the window
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before booking.
Where we work in Liquo
- Brick reveals
- Timber door frames
- Stone surrounds
- Sash and case windows
- Tenement windows
- Period & listed homes
How we quote for sand mastic
You will get a clear quote before work begins. It takes into account:
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
- Access and height
- The number and length of the joints
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Photos by email, if that’s easy
- What’s wrong with the joints now
- If someone has resealed it before
- Roughly how big the job is
For sand mastic in Liquo, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.