South Lanarkshire · Scotland
External & façade joints in Drumclog, South Lanarkshire
External mastic for Drumclog and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
What we can’t put right
Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Structural movement, which needs a surveyor or engineer
- Cutting new joints into brickwork, which is building work rather than sealant work
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
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Copings & trims
- Façade panels
- Brickwork movement joints
How we handle external mastic in Drumclog
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. If you have moss and dirt in joints with no sealant left and movement joints with cracked, split or missing sealant, we can help.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.

- Location
- Drumclog (ML10)
- Region
- South Lanarkshire
- Cover
- One year on every job
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
What we are called out for in Drumclog
Some movement joints have been pointed up with mortar. The joint cannot move, so the wall cracks somewhere else instead.
Signs it’s time to call us include:
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
- Old sealant gone brittle and cracked
- Gaps where render, brick and frames meet
For an older house near a landmark such as Drumclog Memorial Kirk, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Before you book anyone
- How much experience the applicator has
- What the cure time is
- How the colour is chosen
- What insurance they hold
Leave it or put it right?
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. In a place like Drumclog, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, email us at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Why Drumclog customers choose us
- ARBOMaster approved applicator
- Colour agreed with you before work begins
- Old sealant always removed completely
- More than 20 years in sealant work
Take a look at what affects the cost and what customers say.
What external mastic looks like in Drumclog
The west of Scotland is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
Around Drumclog, as everywhere, external mastic is only as good as the preparation behind it.
Drumclog is about 9 miles south of East Kilbride, in South Lanarkshire. Our applicators cover external mastic for homes and businesses in Drumclog and nearby, as part of our work across South Lanarkshire. Drumclog is one of 139 towns and villages in South Lanarkshire where we work for external mastic. For nearby work, see our Glasgow page, about 16 miles away.
Every address in ML10 is covered for external mastic, from the main roads to the quietest streets. Nearby, we also carry out external 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). Larger places within reach include 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
The countryside around Drumclog includes Loch Gate and Distinkhorn.
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes anything from a few hours to several days, depending on the building for a typical job. For a place like Drumclog, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
- Let us know if you’ve seen damp or leaks
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, drop us a line at info@mrmastic.co.uk.
Advice
Towns and villages near Drumclog
More services for Drumclog
Landlord and commercial work in Drumclog
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Landlords and agents in Drumclog can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Clear growth from the base of walls and joints
- Keep movement joints as flexible joints, not mortar
- Point out the joints to other trades
- Keep water from gutters off the wall
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
A joint that has stopped moving pushes the movement elsewhere, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Common questions in Drumclog
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.
Is there a guarantee on external mastic in Drumclog?
Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used.
Can you reach joints on upper floors?
It depends on the height and the site. Ground-floor joints are simple; for higher ones, send details and we will confirm the access.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can you seal joints between two different materials?
Yes. Where different materials meet is one of the most common joints we seal. We use a flexible sealant suited to both surfaces.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.
Can landlords and businesses book you?
Yes. Domestic, commercial and hotel work are all part of what we do, and we are fully insured.
