South Lanarkshire · Scotland
Sand mastic for sash & case windows in Earnock, South Lanarkshire
Our applicators work in Earnock 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.
- Tired mastic found when preparing windows for paint
- Gaps round a timber door in stone or brick
- Old cement repairs round a window that have failed
About our sand mastic in Earnock
We work across Earnock renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. We are often asked to deal with window mastic to renew ahead of painting and draughts and rain around sash boxes, across timber door frames, period & listed homes and sash and case windows.
Outdoor sealant needs a dry surface, so window work around Earnock is planned around the weather. Let us know about access to every frame, including any upstairs.
Big or small, you get the same one-year guarantee.
- Location
- Earnock (ML3)
- Wider area
- South Lanarkshire
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Earnock questions
Will you come out to Earnock?
Yes, Earnock is covered. 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.
Can you help a landlord with a rental near Chatelherault station?
Yes, rental work is part of what we do. You can drop us a line at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before any work starts.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply send an email to info@mrmastic.co.uk.
What 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.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages.
Can I choose the sealant colour?
Normally, yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before we start.
Can sand mastic be painted?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Frames and glazing around Earnock
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Homes close to Hamilton South Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Hamilton Academy, the mastic around its windows and doors needs looking after like any other building’s.
Earnock is about 2 miles south-east of Neilsland, in South Lanarkshire. Anywhere in ML3, we can carry out sand mastic at your property. Earnock is one of 139 places in South Lanarkshire we cover for sand mastic. Glasgow is on our list too, around 12 miles away.
Every address in ML3 is covered for sand mastic, from the main roads to the quietest streets. We cover properties on Aitken Road, Mansefield Road and Clydesdale Avenue. Nearby, we also carry out sand mastic in Avongrove (1 mile west), Quarter (1 mile south), Meikle Earnock (1 mile north-west), Barncluith (1 mile north) and Woodhead (1 mile north-west). Within a short drive, we also cover East Kilbride (6 miles west), Cambuslang (6 miles north-west), Uddingston (6 miles north), Blantyre (4 miles north-west), Larkhall (3 miles east) and Carluke (8 miles east).
Around Earnock
Typical jobs here are in homes near Iona Ridge Park and the streets around them. For rail, the closest station is Chatelherault station, roughly 1.5 miles north-east. Nearby you will also find Cadzow Castle (1 mile north-east) and Udston Hospital (2.7 miles north-west). Open spaces near Earnock include Strathclyde Loch and Baron's Haugh RSPB Reserve.
What happens if it’s left?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice and that can be important for listed homes. In an older home around Earnock, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What you get with us
- We are fully insured
- Old sealant always removed completely
- Over 20 years’ experience
- Trusted Arbo and Everbuild sealants
Take a look at what affects the cost and our reviews.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Masonry that needs repairing
- Decayed frames that need repair
- Sash cords, weights and draught-proofing of the sashes
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly before you book.
Where we work in Earnock
- Stone surrounds
- Timber door frames
- Sash and case windows
- Period & listed homes
- Tenement windows
- Brick reveals
How it works
The work is kept neat and contained to the joints we’re treating, so you can get on with your day. Expect the work to take a few hours for a single window, longer for several. Outside jobs in Earnock need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors isn’t 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.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
How to get a quote
If you’re in Earnock and need sand mastic, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. Several sites can go on one quote, and we’re fully insured.
For anyone letting property in or around Earnock, several properties can go on one quote. Just tell us the addresses and what each one needs.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Signs you need sand mastic in Earnock
Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
Look out for these signs:
- Mastic that needs renewing before redecorating
- Gaps round a timber door in stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps where the frame meets the masonry
If you let a flat or house near Chatelherault station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Comparing quotes
- Whether all the old sealant comes out first
- How the colour is chosen
- Are they insured?
- Who turns up on the day
Towns and villages near Earnock
Also in Earnock
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Check the mastic when you check the paintwork
- Go gently near the mastic when preparing windows
- Sort the mastic before the decorators arrive
- Have rotten timber repaired before new mastic goes in
Do not run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall so early renewal protects both.