Glasgow · Scotland
Window & door mastic in Shettleston, Glasgow
Specialist window mastic for Shettleston: careful preparation, the right product and tidy work. Call for a quick quote.
- Cracked sealant at the sill ends
- Black, perished sealant on frames
- Draughts coming in around windows and doors
Why deal with it now?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. For landlords in Shettleston, damp and leaks can be a Repairing Standard issue, so failed sealant is best replaced before it becomes a complaint.
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 and we will give you an honest view and a quote.
Why choose Mr Mastic in Shettleston
- A choice of colours where the product allows
- Anti-fungal sanitary silicone in wet areas
- We never seal over old sealant
- An ARBOMaster approved applicator
Read what affects the cost or customer reviews.
Window mastic for homes and businesses in Shettleston
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. Typical jobs include cold air getting in at the frame edge and leaking joints at the ends of sills, across timber windows & doors, composite doors and aluminium frames.
Older stone-built tenements in Scotland’s cities were built with sash and case windows, and plenty still have them. In Shettleston, as anywhere, the mastic between frame and wall is what stops draughts and rain getting in.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Shettleston (G32, G31)
- Wider area
- Glasgow
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Shettleston: your questions answered
How is work on the outside of a tenement in Shettleston usually arranged?
Shared parts of a tenement, such as the roof and outside walls, are usually repaired with the agreement of the owners, often through a property factor. The Tenements (Scotland) Act 2004 sets out how that works where the title deeds don’t. Your title deeds will say who owns the windows.
Do you work for landlords with property near Carntyne station?
Yes, rental work is part of what we do. You can email us at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before we start.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
How much does window mastic cost in Shettleston?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Shettleston and the rest of Glasgow.
Will resealing my frames help with draughts?
It will if the frame joint is the problem. We check where the draught is before we start.
Can new sealant go over the old?
No, it will not last. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
What affects the cost of window mastic
Call for a quick quote. The main things that affect it are:
- Access and height
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- When we can work, for business premises
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Pictures of the joints, sent by email
- Roughly how big the job is
- If someone has resealed it before
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you’re ready, email us at info@mrmastic.co.uk.
How the job changes by surface
Patio & French doors
Not every patio door leak is a mastic problem: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the new bead is laid against the frame and the wall and tooled smooth.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Rotten timber, which needs a joiner first
- Damp coming through the wall itself rather than the frame joint
- Broken hinges, locks or handles
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Joints and surfaces we work on
- uPVC windows
- Composite doors
- Aluminium frames
- Window sills
- Timber windows & doors
- Patio & French doors
How it works
There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes anything from an hour or two to a full day, depending on how many frames there are in most cases. Many homes in Scotland’s cities are tenement flats, reached through a shared close and up a common stair. For a job in Shettleston, tell us the floor, how the door entry system works and where we can park nearby.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
We quote each job on its own. Simply email us at info@mrmastic.co.uk and describe the job, and pictures are welcome.
Read more
What we are called out for in Shettleston
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.
Signs it’s time to call us include:
- Old mastic that has gone black or come away
- Cracked sealant at the sill ends
- Water coming in at the bottom corners of a door
- Rushed sealant from a window installation
Historic houses such as Provand's Lordship, about 2.7 miles west, show how far back building around Shettleston goes.
Comparing quotes
- Whether all the old sealant comes out first
- What happens if the job turns out different
- Whether they’re fully insured
- What product goes in the joint
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Also near Shettleston
More services for Shettleston
Windows and doors in Shettleston
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. Windows usually belong to the flat, but the title deeds have the final say. Much of Glasgow is built from red and blond sandstone, and porous sandstone needs a sealant that will not mark it.
Rented homes near Carntyne station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. Managing a site like Eastbank Academy? Then larger buildings have plenty of frames, and the mastic around each one ages.
Shettleston is about 2 miles north-west of Cambuslang, in Glasgow. Shettleston gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. We cover 183 towns and villages across Glasgow, from the larger towns to small villages.
We cover every part of the G32 and G31 postcode area for window mastic and the streets around it. We cover properties on Wellshot Road, Tollcross Road and Budhill Avenue. Shettleston is on the A89, so it’s easy for us to get to. Other places close to Shettleston include Greenfield (1 mile north), Budhill (1 mile north-east), Tollcross (1 mile south), Lightburn (1 mile north) and Springboig (1 mile north-east). We also work in nearby towns such as Glasgow (4 miles west), Hillhead (5 miles west), Dowanhill (5 miles west), Woodlands (4 miles west), Woodside (4 miles north-west) and North Kelvinside (5 miles north-west).
Local landmarks in Shettleston
In Shettleston, that means homes and buildings near St Andrew's Secondary School and Parkhead Library, among other places. For rail, the closest station is Carntyne station, roughly 0.5 miles north-west of the centre. A little further out are Tollcross Museum (less than half a mile south-west) and Lightburn Hospital (0.7 miles north). For a walk, there’s Lenzie Moss and Cathkin Braes.
