North Lanarkshire · Scotland
Motherwell External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Motherwell, with a one-year guarantee on every job. Call for a quick quote.
- Water getting into walls through failed joints
- Brick movement joints where the sealant has split
- Sealant that has lost its bond to the brick or render
How we handle external mastic in Motherwell
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a matching colour. If you’re dealing with water getting into walls through failed joints and joints pointed up with cement by mistake, we can help, on copings & trims, joints between brick and frames and concrete & block alike.
In a town like Motherwell, older stone-built streets sit alongside newer estates with brick, render and uPVC rooflines. Older buildings tend to leak at gutter joints, newer ones at dried-out movement joints.
All our work comes with a one-year guarantee, wherever you are in North Lanarkshire.

- Place
- Motherwell (ML1)
- Wider area
- North Lanarkshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What happens if it’s left?
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render, so the problem grows beyond the joint itself. Private landlords in a town like Motherwell must keep homes wind and watertight under the Repairing Standard. Sorting failed joints early is easier than dealing with a tenant’s complaint.
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
Why us?
- 180+ five-star Google reviews
- 20+ years of sealant experience
- Old sealant always removed completely
- Domestic, commercial and hotel work
What external mastic looks like in Motherwell
Historic houses like Cambusnethan House (about 3.2 miles south-east) are a reminder that the area around Motherwell has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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.
Managing a site like Braidhurst High School? Then its movement joints, gutters and trims need looking after like any other building’s. If you live in an older home near Dalziel High Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Motherwell is about 12 miles east of Glasgow, in North Lanarkshire. Wherever you are in the ML1 postcode area, we can carry out external mastic at your property. Motherwell is one of 89 towns and villages in North Lanarkshire where we work. Glasgow is on our list too, about 12 miles from Motherwell.
Work in ML1 works the same way as everywhere else we cover. You’ll find streets such as Civic Square, Station Road and Jerviston Street. Being close to the A721 and A723, Motherwell is simple for us to get to. Other places close to Motherwell include Ravenscraig (1 mile south-east), Airbles (1 mile south-west), Muirhouse (2 miles south), Netherton (2 miles south-east) and Coltness (3 miles east). Larger places within reach include Cumbernauld (11 miles north), Coatbridge (4 miles north-west), Airdrie (5 miles north), Kilsyth (13 miles north), Burnfoot (5 miles north) and Shotts (7 miles east). Motherwell is one of the larger places we cover in North Lanarkshire.
Landmarks near Motherwell
Locally, jobs take us to homes and businesses close to The Brandon Works pub, Ladywell Primary School and Duchess of Hamilton Park and the streets around them. Motherwell’s nearest station is Motherwell station, about 0.6 miles south-west of the centre. Other landmarks nearby include North Lanarkshire Heritage Centre (0.7 miles south-west) and Dalzell House (1.7 miles south). For a walk, there’s Baron's Haugh RSPB Reserve and Strathclyde Loch.
Do you need external mastic in Motherwell?
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
Keep an eye out for these signs:
- Moss and dirt in joints with no sealant left
- Leaking joints around cladding and façade panels
- Joints with sealant missing in places
- Joints where the bead has come unstuck
Letting a property close to Motherwell station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- How much experience the applicator has
- Which sealant they’ll use, and why
- What insurance they hold
- Whether they seal over old material or remove it
What sealant work can’t fix
Before booking, it’s worth knowing the limits too:
- Walls that need new movement joints cut into them
- Cracks in the bricks or render themselves, away from the joints
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Façade panels
- Concrete & block
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
What affects the quote in Motherwell
Every job gets its own quote. This is what makes a difference:
- The number and length of the joints
- Access and height
- Working hours on commercial sites
- The type of sealant required
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
What we need to know
To make quoting easier, please include:
- Whether it’s a home or a business
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- The rough size of the job
We quote each job on its own. Simply email us at info@mrmastic.co.uk and describe the job and send photos if you have them.
How it works
You don’t need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. In a Scottish town like Motherwell, parking is usually straightforward, though older centres can be tighter. If you’re in a flat with a shared stair or a door entry system, let us know when you book.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Related advice
Landlords, agents and businesses in Motherwell
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
Looking after it afterwards
Looking after new joints is easy:
- Tell anyone working on the walls about the movement joints
- Keep movement joints as flexible joints, not mortar
- Keep soil, plants and ivy away from the joints
- Check external joints each spring
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.
Common questions in Motherwell
Is external mastic in Motherwell guaranteed?
All our work, in Motherwell and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Is Motherwell in your area for external mastic?
Yes. Our work covers the whole of Scotland, and Motherwell 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.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Are you insured?
Yes. We are fully insured.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
Where is Mr Mastic based?
We are based in Crawley, and we cover South East England, London and all of Scotland.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Can tenants book the work?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
