Glasgow · Scotland
Window & door mastic in Old Drumchapel, Glasgow
Problem with your window and door frames in Old Drumchapel? We cut out the old, prepare the joints and apply the right sealant.
- Draughts coming in around windows and doors
- Gaps where the sill meets the wall
- Water coming in at the bottom corners of a door
Window mastic for homes and businesses in Old Drumchapel
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on aluminium frames, uPVC windows and composite doors, and the jobs we see most are a bead that doesn’t match the frame and whistling draughts around closed windows.
In a Scottish city, many flats have windows two, three or four floors up, so the mastic outside can go unchecked for years. For a flat in Old Drumchapel, access is the first thing to plan, and in a tenement the outside of the building may be a shared repair.
Your job is guaranteed for a year, as with all our work.
- Location
- Old Drumchapel (G15, G13, G81)
- Region
- Glasgow
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common questions in Old Drumchapel
Can you do window mastic in Old Drumchapel?
Yes, Old Drumchapel is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Can you help a landlord with a rental near Drumchapel station?
Yes, rental work is part of what we do. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear price.
Is the work guaranteed?
Yes, with our one-year guarantee. A yearly look at the joints helps them last.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Can resealing stop a draught around my window?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we’ll tell you.
Do I have to be there?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Do you seal inside as well as outside?
Yes, we do both. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
How many windows can you do in a day?
That depends on the number of frames, how they’re reached and the state of the old mastic. You’ll know the timing when we quote.
What window mastic looks like in Old Drumchapel
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. 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. Who owns the windows depends on the title deeds.
If you live in an older home near St David's Parish Church, the joint between an old wall and a newer frame is generally the first place rain gets in. If you look after a building such as Saint Andrew's High School, its window and door frames need their mastic kept sound, just like a home’s.
Old Drumchapel is about 2 miles south-west of Bearsden, in Glasgow. Jobs in Old Drumchapel get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Old Drumchapel is one of 183 places in Glasgow we cover.
Work in G15, G13 and G81 is quoted and booked the same way as anywhere else. We cover properties on Fruin Road, Manor Road and Dosk Avenue and the roads around them. If you’re just outside Old Drumchapel, we cover Drumchapel (1 mile north-east), Blairdardie (1 mile east), Linnvale (1 mile west), Drumry (1 mile north-west) and Westerton (1 mile east). We also work in nearby towns such as Glasgow (5 miles south-east), Hillhead (4 miles south-east), Dowanhill (3 miles south-east), Woodlands (4 miles south-east), Woodside (4 miles south-east) and North Kelvinside (4 miles south-east).
What’s near Old Drumchapel
Old Drumchapel has its own railway station: Drumchapel station. Well-known places in the area include Renfrew Museum (1.8 miles south-west) and Drumchapel Hospital (0.5 miles north-east). The countryside around Old Drumchapel includes Castle Hill and Kilmardinny.
What we are called out for in Old Drumchapel
Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
Keep an eye out for these signs:
- Draughty joints inside around the window
- Whistling draughts around closed windows
- Hard, cracked sealant around windows
- White mastic on grey or black frames
For landlords with property near Drumchapel station, renewing tired window mastic between tenants heads off draught and damp complaints.
What to look for in a quote
- What happens if the job turns out different
- How the colour is chosen
- Whether the sealant suits the joint
- Who does the work, and how experienced they are
DIY versus a professional finish
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.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Places near Old Drumchapel
Other services in Old Drumchapel
Looking after it afterwards
So the new joints stay in good condition:
- Keep paint off silicone joints
- Keep solvents and bleach off the sealant
- Wash the frames with mild soapy water
- Look round the frames every year or so
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
When something else is needed
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Worn gaskets, brush seals or a door that has dropped
- A frame that has rotted at the joint
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
What we seal
- Timber windows & doors
- uPVC windows
- Composite doors
- Window sills
- Patio & French doors
- Aluminium frames
How it works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes most of a day for a typical house, less for a few frames from start to finish. For a tenement in Old Drumchapel, work inside your flat is between us and you, while shared parts may need the factor or neighbours to agree. Tell us which applies when you book.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Getting ready for the visit
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Every job is quoted individually. Simply email us at info@mrmastic.co.uk and describe the job, and pictures are welcome.
Advice
Quotes for window mastic in Old Drumchapel
The quote reflects the job in front of us. We take into account:
- Any working-time requirements on site
- Access and height
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
Combining jobs into one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
What we need to know
Photos help, but a description is a good start. Please mention:
- A few photos by email, if you can
- How we’d reach the joints
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
How the job changes by surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We will tell you if that is what we find.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal and we avoid acetoxy silicones, which can react with some metals. We use a neutral-cure product.