Glasgow · Scotland
Cardonald External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Cardonald, with a one-year guarantee on every job. Call for a quick quote.
- Sealant that has lost its bond to the brick or render
- Joints with sealant missing in places
- Moss and dirt in joints with no sealant left
External mastic in Cardonald, done properly
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. We work on render & cladding joints, brickwork movement joints and joints between brick and frames, and people most often call us about rigid filler in a joint that should flex and weathered mastic that no longer stretches.
Scotland’s cities also have plenty of modern blocks with rendered or clad walls and sealed movement joints. Around Cardonald, as anywhere, those joints dry out and crack over time, letting water behind the face of the building.
The work is covered for a year after we finish. If there’s a problem with it, please send an email to info@mrmastic.co.uk.
- Location
- Cardonald (G52, G51, G53)
- Wider area
- Glasgow
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Your questions about external mastic in Cardonald
Can you help a landlord with a rental near Hillington East station?
Yes. We work for landlords and letting agents as well as householders. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Do you cover Cardonald for external mastic?
Yes, Cardonald is within the area we cover. We work across all of Scotland. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing, and we’ll give you a clear quote.
What is a movement joint?
Walls move with heat, cold and moisture, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Do you guarantee your work?
Yes. Every job comes with a one-year guarantee.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures.
Can a movement joint be filled with mortar?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.
How long does external mastic last?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Our work comes with a 12-month guarantee.
Quotes for external mastic in Cardonald
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- The amount of work
- The type of sealant required
- How many areas need sealing
- How easy the joints are to reach
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and send you a clear quote before we start.
Asking for a quote
What to tell us when you ask for a quote:
- If someone has resealed it before
- Where the job is, and your postcode
- The problem you’ve noticed
- How we’d reach the joints
Want a quote for external mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
Outside joints around Cardonald
Much of Glasgow is built from red and blond sandstone, and porous sandstone needs a sealant that won’t mark it. Under the Tenements (Scotland) Act 2004, shared parts of a tenement, such as the roof and outside walls, are looked after by the owners together, and many buildings use a factor to arrange it. The title deeds set out which parts are common.
If you look after a building such as Lourdes Secondary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Hillington East station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Cardonald is about 2 miles south-east of Renfrew, in Glasgow. We carry out external mastic for householders, landlords and businesses in Cardonald, as part of our work across Glasgow. Across Glasgow, we cover 183 places, and Cardonald is one of them.
All of G52, G51 and G53 is covered for external mastic, from the main roads to the quietest streets. Whether your property is on Talla Road, Moulin Road and Penneld Road or anywhere close by, our applicators can take on the job. If you’re just outside Cardonald, we cover Hillington (1 mile west), Penilee (1 mile west), Crookston (1 mile south-west), Halfway (1 mile east) and Rosshall (1 mile south-west). Further out, we also cover Glasgow (3 miles east), Hillhead (3 miles north-east), Dowanhill (3 miles north-east), Woodlands (3 miles north-east), Woodside (4 miles north-east) and North Kelvinside (4 miles north-east).
Local landmarks in Cardonald
Around Cardonald, our work takes us to homes and buildings near Craigton Primary School and Isabella Elder Rose Garden. There’s a railway station in Cardonald itself: Hillington East station. A little further out are Queen Elizabeth University Hospital (1 mile north-east) and Braehead (1.9 miles north).
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep movement joints as flexible joints, not mortar
- Check external joints each spring
- Show decorators and builders where the movement joints are
- Check the sealant is paintable before painting near it
Don’t let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Small splits are the time to act. At that stage it’s a simple cut out and reseal before water has had years to get in.
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for a handful of joints, longer for a whole elevation, and the area is left clean. Parking in city streets around Cardonald can be tight or controlled, so it helps to know about permits or nearby bays. For flats, mention the door entry system and any shared-stair arrangements.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Keep children and pets away from the work area
- Mention any tricky access
- Try not to wet indoor joints just before the visit
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Advice
More services for Cardonald
Do you need external mastic in Cardonald?
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
The most common problems we see are:
- Moss and dirt in joints with no sealant left
- Rigid filler in a joint that should flex
- Movement joints with cracked, split or missing sealant
- Sealant that has lost its bond to the brick or render
Homes close to St Nicholas' Cardonald Church include some older properties, and older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- Which sealant they’ll use, and why
- What preparation is included
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
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.
Why deal with it now?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. In a tenement flat in Cardonald, a failed seal is rarely just your problem: water can reach the flat below, and gaps in shared walls or fire-stopping affect the whole stair.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why us?
- 4.9 on Google from 180+ five-star reviews
- White, clear, grey or coloured to suit, where the product allows
- Colour agreed with you before work begins
- Experience in homes, commercial sites and hotels
Take a look at what affects the cost and customer reviews.