Glasgow · Scotland
External & façade joints in Dennistoun, Glasgow
Movement joints in Dennistoun need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Failed seals between different materials
- Weathered mastic that no longer stretches
- Sealant pulling away from one side of the joint
Outside joints around Dennistoun
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, often through a property factor. The title deeds set out which parts are common. Historic houses like Provand's Lordship (about 0.8 miles west) are a reminder that the area around Dennistoun 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.
For an older house near a landmark such as Rutherford Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Schools such as Whitehill Secondary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
Dennistoun is about 2 miles east of Glasgow, in Glasgow. From the centre of Dennistoun to the outskirts, external mastic is available for homes and businesses alike. Dennistoun is one of 183 places in Glasgow where we work for external mastic.
Postcode districts we cover here for external mastic: G31, G40 and G21. If you need external mastic at a property on Ark Lane, Appin Road and Market Street or anywhere close by, we can help. Dennistoun is on the M8 and A8, so it’s easy for us to get to with everything needed for external mastic. If you are just outside Dennistoun, we cover Gallowgate (1 mile south), Haghill (1 mile east), Camlachie (1 mile south), Blochairn (1 mile north) and Barrowfield (1 mile south). Larger places within reach include Hillhead (3 miles west), Dowanhill (4 miles west), North Kelvinside (3 miles north-west), Partickhill (4 miles west), Yorkhill (3 miles west) and Kelvinside (4 miles north-west).
Around Dennistoun
Typical jobs here are in homes near Springburn Park, Saracen Head pub and Our Lady of Good Counsel Church and the streets around them. There’s a railway station in Dennistoun itself: Duke Street station. Other landmarks nearby include Canniesburn Hospital (0.7 miles north-west) and Bishop's Castle (0.8 miles west). The countryside around Dennistoun includes Hogganfield Loch and Cathkin Braes.
How we handle external mastic in Dennistoun
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what access is needed. We work on joints between brick and frames, brickwork movement joints and façade panels, and people most often call us about sealant that has lost its bond to the brick or render and weeds or debris growing in open joints.
Gutters and downpipes on tall city tenements are a long way up, and a slow drip can stain and soak the stone for a long time before it’s spotted. For a building in Dennistoun, access is planned first, and shared parts may need the other owners to agree.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Dennistoun (G31, G40, G21)
- Region
- Glasgow
- Cover
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Failed render or damaged cladding panels
- Structural movement, which needs a surveyor or engineer
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Where we work in Dennistoun
- Brickwork movement joints
- Render & cladding joints
- Façade panels
- Concrete & block
- Copings & trims
- Joints between brick and frames
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It usually takes a few hours to a few days, depending on the length of joint and the access. Parking in city streets around Dennistoun can be tight or controlled, so it helps to know about permits or nearby bays. If you’re in a flat, let us know how we get in at the street door.
- 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.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Before we arrive
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Advice
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Common problems we fix in Dennistoun
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
The most common problems we see are:
- Rigid filler in a joint that should flex
- Sealant that has lost its bond to the brick or render
- Weeds or debris growing in open joints
- Weathered mastic that no longer stretches
For landlords with property near Duke Street station, split movement joints are easy to miss on a rental until damp shows inside.
Comparing quotes
- Whether you can choose the colour
- Are they insured?
- How long the guarantee is
- What the cure time is
How we quote for external mastic
We quote each job individually. This is what makes a difference:
- Access and height
- The type of sealant required
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
Combining jobs into one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
What to tell us for a quote
When you contact us, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- Whether it has been sealed before
- Whether it’s a home or a business
To get a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Keeping the joints in good condition
So the new joints stay in good condition:
- Show decorators and builders where the movement joints are
- Walk round the building once a year and look at the joints
- Make sure movement joints aren’t pointed over
- Keep high-pressure jets off the joints
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage which cost more to put right than the joint.
Landlord and commercial work in Dennistoun
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Places near Dennistoun
Also in Dennistoun
Common questions in Dennistoun
Is Dennistoun in your area for external mastic?
Yes, Dennistoun is within the area we cover. Our work covers the whole of Scotland. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
I let a flat near Duke Street station. Can you help?
Yes, we work for landlords and agents. You can send an email to info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before work begins.
Is it messy?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we’re done.
Are you fully insured?
Yes, we are fully insured for domestic and commercial work.
Is it OK to seal over old sealant?
No, it will not last. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Why do you put foam in the joint first?
Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back.
How long does the job take?
As a guide, most jobs take a few hours to a few days, depending on the length of joint and the access. Larger jobs naturally take longer.