Glasgow · Scotland
External & façade joints in Cadder, Glasgow
Movement joints in Cadder need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Panel joints letting water in
- Movement joints with cracked, split or missing sealant
- Gaps where render, brick and frames meet
For landlords and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we are fully insured.
External mastic for homes and businesses in Cadder
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We take the old material out and do it properly. If you are dealing with moss and dirt in joints with no sealant left and hard, crazed mastic that has stopped moving, we can help, whatever the surface.
On a four-storey tenement, gutter joints are a long way from the street, and a slow drip can stain and soak the stone for a long time before it’s spotted. In Cadder, access needs planning, and work on shared parts may need the other owners’ agreement.
There’s a 12-month guarantee on every job, large or small.
- Location
- Cadder (G20, G23, G22)
- Wider area
- Glasgow
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
External mastic in Cadder: local notes
Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex. The Tenements (Scotland) Act 2004 sets out how owners share the upkeep of common parts like the roof and outside walls, often through a property factor. The title deeds set out which parts are common.
Tenement House, about 2.1 miles south, is one of the historic houses in the wider area around Cadder. Managing a site like John Paul Academy? Then larger buildings have long runs of movement joint that eventually need resealing. Rented homes near Gilshochill station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Cadder is about 1 mile north of North Kelvinside, in Glasgow. From the centre of Cadder to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Cadder is one of 183 towns and villages in Glasgow we cover for external mastic.
Every address in G20, G23 and G22 is covered for external mastic, from the main roads to the quietest streets. Whether your property is on Cadder Road, Tresta Road and Hillend Road or anywhere close by, our applicators can take on the job. Main roads around Cadder include the A879, which makes travel easy. Other places close to Cadder include Gilshochill (1 mile south-west), Lambhill (1 mile south-east), High Ruchill (1 mile south), Maryhill (1 mile west) and Ruchill (1 mile south). Within a short drive, we also cover Glasgow (3 miles south), Calton (4 miles south-east), Langside (5 miles south), Yoker (4 miles west), Mount Florida (5 miles south) and Hillpark (6 miles south).
Near you in Cadder
Typical jobs here are in homes near Glasgow University Library and Dawsholm Park. Cadder has its own railway station: Gilshochill station. Nearby you will also find Chinatown (2.1 miles south) and Ruchill Hospital (0.9 miles south-east). For a walk, there’s Bardowie Loch and Castle Hill.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes a few hours to a few days, depending on the length of joint and the access, depending on the amount of work. Parking in city streets around Cadder can be tight or controlled, so it helps to know about permits or nearby bays. If you are in a flat, let us know how we get in at the street door.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
- For business premises, tell us about site rules or sign-in
Ask for a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, email us at info@mrmastic.co.uk.
Advice
How the job changes by surface
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two so neither cracks the other.
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joints work hard every day. The sealant is chosen with that in mind.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Keep soil, plants and ivy away from the joints
- Point out the joints to other trades
- Wash walls gently around the sealant
- Ask before painting over external sealant
Keep pressure washers away from the sealant. High-pressure water can lift the edges and let water in behind.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.
What we can’t put right
To be straight with you, some problems need a different trade:
- Structural movement, which needs a surveyor or engineer
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
Joints and surfaces we work on
- Copings & trims
- Brickwork movement joints
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
Nearby places to Cadder
What else we do in Cadder
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Your questions about external mastic in Cadder
Is Cadder in your area for external mastic?
Yes. We work across all of Scotland, and Cadder is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Who arranges sealant work on the shared parts of a tenement in Cadder?
Most tenements arrange shared repairs through the owners or a property factor. The Tenements (Scotland) Act 2004 sets the rules for common parts if the deeds do not, and we can quote for the factor or the owners directly.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
How long will you be here?
As a guide, most jobs take anything from a few hours to several days, depending on the building. Larger jobs naturally take longer.
How do I get a quote for external mastic in Cadder?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
Do you have insurance?
Yes. Full insurance covers our work.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Quotes for external mastic in Cadder
You’ll get a clear quote before we start. It’s based on:
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
- Any mould that needs treating
- The product the joint needs
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Where the property is
- Photos by email, if that is easy
- What’s wrong with the joints now
- The rough size of the job
To get a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. We will send you a clear quote before any work starts.