Glasgow · Scotland
Window Mastic in Drumchapel
Mastic around window and door frames, sills and patio doors for homes and businesses in Drumchapel and across Glasgow. Fully insured, ARBOMaster approved and guaranteed for a year.
- Black, perished sealant on frames
- Damp patches on the reveal after heavy rain
- A bead that does not match the frame
Window mastic for homes and businesses in Drumchapel
Around Drumchapel we seal all kinds of frames: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on aluminium frames, patio & French doors and window sills, and the jobs we see most are black, perished sealant on frames and white mastic on grey or black frames.
Sash and case windows are a feature of older tenements in all four Scottish cities, and plenty still have them. In Drumchapel, as anywhere, the mastic between frame and wall is what stops draughts and rain getting in.
Whatever the size of the job, you get the same 12-month guarantee.
- Place
- Drumchapel (G15, G13, G61)
- Wider area
- Glasgow
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Clean frames with a soft cloth and soapy water
- Clear any debris from frame drain holes
- Keep paint and stain on wooden frames in good order
- Air rooms to keep condensation down around windows
Most silicone sealants will not take paint, so if you’re planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Places near Drumchapel
What else we do in Drumchapel
Landlord and commercial work in Drumchapel
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured.
If you manage several properties in or around Drumchapel, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and photos by email help.
Drumchapel: your questions answered
Can you do window mastic in Drumchapel?
Yes. We work across all of Scotland, and Drumchapel is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
Do you work for landlords with property near Drumchapel station?
Yes, landlords and agents are among the people we work for. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we’ll send you a clear quote.
Do you take out the old sealant first?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Where are you based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected.
How do I get a quote for window mastic in Drumchapel?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before any work starts.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Can you seal the gap between the frame and the plaster indoors?
Yes. Indoors, we seal between the frame and the plaster or reveal.
Drumchapel homes and the weather
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. 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. Who owns the windows depends on the title deeds.
Schools such as Knightswood Secondary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Homes close to St David's Parish Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. If you let a flat or house near Drumchapel station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Drumchapel is about 2 miles south-west of Bearsden, in Glasgow. Every kind of property in Drumchapel can book us for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Drumchapel is one of 183 places in Glasgow we cover for window mastic.
Jobs for window mastic in G15, G13 and G61 is quoted and booked the same way as anywhere else. Window mastic is available to properties on Mace Road, Fruin Road and Manor Road. Nearby, we also carry out window mastic in Blairdardie (1 mile south-east), Old Drumchapel (1 mile south-west), Linnvale (1 mile west), Westerton (1 mile east) and Drumry (1 mile west). Within a short drive, we also cover 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).
Around Drumchapel
Drumchapel has its own railway station: Drumchapel station. Well-known places in the area include Braehead (2 miles south) and Drumchapel Hospital (under half a mile north-east). Green spaces nearby include Kilmardinny and Castle Hill.
DIY sealant or a professional job?
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.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
What sealant work can’t fix
In fairness, there are a few things sealant will not fix:
- A sash or casement that will not close properly
- A frame that has rotted at the joint
- Draughts through the window seals rather than the frame
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before you book.
Joints and surfaces we work on
- Aluminium frames
- Window sills
- Composite doors
- uPVC windows
- Patio & French doors
- Timber windows & doors
Why deal with it now?
Working on frames from a ladder with a sealant gun isn’t easy, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Scottish rain finds any gap around a frame or wall joint, and in a tall building in Drumchapel, damp can travel a long way before it shows.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will go through it with you.
What you get with us
- More than 20 years in sealant work
- You choose the colour before work begins
- Arbo and Everbuild products
- A sealant colour to suit the surroundings
How the visit works
At the end, we look at the finished work together and explain the cure time. The work normally takes most of a day for a typical house, less for a few frames, depending on the size of the job. For a tenement in Drumchapel, work inside your flat is between us and you, while shared parts may need the factor or neighbours to agree. It helps to know which it is when you get in touch.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
- On commercial sites, let us know about site rules
How to get a quote
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before any work starts.
Advice
Surface by surface
Composite doors
A composite door normally sits in a plastic outer frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.
Patio & French doors
Patio and French doors have the longest joints on most houses. Most leaks start at the bottom corners, so they get particular care.