Glasgow · Scotland
Window & door mastic in Cardonald, Glasgow
Mastic around window and door frames, sills and patio doors in Cardonald, with a one-year guarantee on every job. Call for a quick quote.
- Whistling draughts around closed windows
- Cracked internal joints between frame and plaster
- A bead that doesn’t match the frame
About our window mastic in Cardonald
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that can’t move properly, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. We work on uPVC windows, composite doors and timber windows & doors, and the jobs we see most are cracked sealant at the sill ends and black, perished sealant on frames.
Sash and case windows are a feature of older tenements in all four Scottish cities, though many have since been replaced. In Cardonald, as anywhere, the mastic between frame and wall is what stops draughts and rain getting in.
Big or small, it’s backed by our one-year guarantee in Cardonald and across Glasgow.
- Location
- Cardonald (G52, G51, G53)
- Region
- Glasgow
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Windows and doors in Cardonald
Much of Glasgow is built from red and blond sandstone, and porous sandstone needs a sealant that won’t mark it. The west of Scotland is wetter than the east, which means the mastic around window and door frames has to cope with a lot of rain.
Schools such as Lourdes Secondary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Homes close to St Nicholas' Cardonald Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Cardonald is about 2 miles south-east of Renfrew, in Glasgow. Every kind of property in Cardonald can book us for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Cardonald is one of 183 towns and villages in Glasgow where we work for window mastic.
Work in G52, G51 and G53 works the same way as everywhere else we cover. Whether your property is on Talla Road, Moulin Road and Penneld Road or a nearby road, we can help. Nearby, we also carry out window mastic in Hillington (1 mile west), Penilee (1 mile west), Crookston (1 mile south-west), Halfway (1 mile east) and Rosshall (1 mile south-west). Larger places within reach include 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
Locally, jobs take us to homes and businesses close to Craigton Primary School and Isabella Elder Rose Garden. Cardonald has its own railway station: Hillington East station. Well-known places in the area include Queen Elizabeth University Hospital (1 mile north-east) and Braehead (1.9 miles north).
Signs you need window mastic in Cardonald
Mastic ages in the weather. UV light hardens the outside of the bead, and over the years it loses its give, cracks and comes away.
Most people get in touch when they notice one of these:
- Gaps between the frame and the inside reveal
- Old mastic that has gone black or come away
- Water coming in at the bottom corners of a door
- Leaking joints at the ends of sills
Letting a property close to Hillington East station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What to look for in a quote
- Whether all the old sealant comes out first
- What happens if they find a problem under the old sealant
- How long to leave it before use
- What the quote includes, VAT included or not
How we quote for window mastic
You will get a clear quote before any work starts. It takes into account:
- Any mould that needs treating
- How many rooms, windows or areas are involved
- The number and length of the joints
- Whether old sealant or filler has to be cut out
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
When you contact us, these details help:
- The problem you’ve noticed
- Where the property is
- Pictures of the joints, sent by email
- The type of property
Want a quote for window mastic? Please email us at info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and give you a clear price before work begins.
Other services in Cardonald
When something else is needed
In fairness, there are a few things sealant will not fix:
- Worn gaskets, brush seals or a door that has dropped
- Damp coming through the wall itself rather than the frame joint
- Condensation trapped between the panes
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
What we seal
- Composite doors
- Window sills
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Aluminium frames
How the job changes by surface
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
The process
Before we leave, we go over the finished joints with you. The work normally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. Inside a flat in Cardonald, the job is planned with you; outside, shared parts may need the factor or other owners involved. It helps to know which it is when you get in touch.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
How to prepare
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Advice
Why deal with it now?
Choosing the product is half the job. Interior caulk and bathroom silicone aren’t made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. 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.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk and we will talk you through it.
What you get with us
- Quality sealants from Arbo and Everbuild
- We leave the area clean and tidy
- We agree the colour with you first
- Rated 4.9 stars on Google
Take a look at our cost guide or customer reviews.
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Questions from Cardonald
How do repairs to the shared parts of a tenement in Cardonald get organised?
The owners of the flats normally agree repairs to shared parts like the roof and outside walls, and many buildings have a factor to arrange it. Where the title deeds are silent, the Tenements (Scotland) Act 2004 fills the gaps. Your title deeds will say who owns the windows.
I let a flat near Hillington East station. Can you help?
Yes, we work for landlords and letting agents. Just send an email to info@mrmastic.co.uk and tell us about the property, and we will give you a clear quote.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
How much does window mastic cost in Cardonald?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Can new window sealant be painted?
That depends on the product. Silicone is not paintable, but some hybrid sealants are. Mention any painting plans before we start.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.