South Lanarkshire · Scotland
Sand mastic for sash & case windows in Drumclog, South Lanarkshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Drumclog. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that needs renewing before redecorating
- Draughts and rain around sash boxes
- Cement or filler used on old window joints that has cracked
Sand mastic in Drumclog
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. If you’re dealing with a silicone bead on a sash window that spoils the look and failed mastic on an exposed elevation, we can help, on sash and case windows, timber door frames and brick reveals alike.
Mastic can only go onto a dry joint, so outside work in Drumclog depends on the weather. Tell us about access to all the windows and doors, upstairs included.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Drumclog (ML10)
- Wider area
- South Lanarkshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Why act early in Drumclog
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in, and renewing the mastic closes them. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
Why book with us
- ARBOMaster approved applicator
- 20+ years of sealant experience
- Domestic, commercial and hotel work
- Any old sealant cut out fully, not covered over
See our cost guide or our reviews.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
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 doesn’t work out, we can still put it right.
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
We also work for property managers and facilities teams in Drumclog and across South Lanarkshire. We can quote a run of properties together.
Different surfaces, different methods
Brick reveals
We rake out the old mastic and pack deep voids before the new mastic goes in.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
What we’re called out for in Drumclog
Water gets into small cracks in the mastic and pushes it out. Windows facing the weather tend to go first.
Signs it’s time to call us include:
- Mastic round period door frames that has failed
- Failed mastic on an exposed elevation
- Mastic that needs renewing before redecorating
- Gaps between timber frames and stone or brick
If you live in an older home near Drumclog Memorial Kirk, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- Which colour the sealant will be
- How the surfaces are prepared before sealing
- Whether all the old sealant comes out first
- What happens if the job turns out different
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Avoid patching sand mastic with silicone
- Check with your local planning authority if your home is listed
- Do not paint over the new mastic
- Sort the mastic before the decorators arrive
Leave the new mastic alone while it firms up. It skins over quickly, 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.
Places near Drumclog
Also in Drumclog
Common questions in Drumclog
Is there a guarantee on sand mastic in Drumclog?
All our work, in Drumclog and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Is Drumclog within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
How long will you be here?
Most jobs take a few hours per window, depending on the condition of the joints, including the preparation. We will confirm how long when we quote.
What should I tell you?
A short description and the location, with photos by email if possible. We’ll ask anything else we need to know.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Do you offer different sealant colours?
We help you choose a colour that suits. The product needed can limit the range.
How the visit works
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work starts. The work normally takes a few hours per window, depending on the condition of the joints. For a place like Drumclog, longer drives are planned in advance. 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.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Mention if the joints have been sealed before
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you’re ready, email us at info@mrmastic.co.uk.
Advice
Windows and doors in Drumclog
Drumclog 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, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Around Drumclog, as everywhere, sand mastic is only as good as the preparation behind it.
Drumclog is about 9 miles south of East Kilbride, in South Lanarkshire. Anywhere in ML10, our applicators can take on sand mastic. Our area takes in 139 places across South Lanarkshire, large and small. There’s also a page for Glasgow, roughly 16 miles from Drumclog.
Jobs for sand mastic in ML10 works the same way as everywhere else we cover. Nearby, we also carry out sand mastic in Priestland (4 miles west), Darvel (5 miles west), Strathaven (5 miles north-east), Sandford (6 miles north-east) and Chapelton (7 miles north-east). Within a short drive, we also cover East Kilbride (9 miles north), Hamilton (11 miles north), Cambuslang (13 miles north), Uddingston (14 miles north), Blantyre (12 miles north) and Larkhall (11 miles north-east).
Landmarks near Drumclog
Green spaces nearby include Loch Gate and Distinkhorn.