Glasgow · Scotland
Dawsholm Window Mastic
Window and door frames in Dawsholm need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Black, perished sealant on frames
- Gaps between the frame and the inside reveal
- Gaps where the sill meets the wall
Window mastic for homes and businesses in Dawsholm
From a single sill to a whole house of windows, the work is priced before anything is done. Just send an email to info@mrmastic.co.uk and tell us how many frames there are and how they’re reached for window mastic in Dawsholm. We are often asked to deal with old mastic that has gone black or come away and hard, cracked sealant around windows, on window sills, aluminium frames and composite doors.
Tenement flats in Scotland’s cities often have windows high above the street, so the mastic outside can go unchecked for years. Access is the first thing to plan for a job in Dawsholm.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Place
- Dawsholm (G20, G12, G13)
- Region
- Glasgow
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we are called out for in Dawsholm
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
Look out for these signs:
- Hard, cracked sealant around windows
- Sealant in the wrong colour for the frame
- Cold air getting in at the frame edge
- Black, perished sealant on frames
Letting a property close to Kelvindale station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- How the surfaces are prepared before sealing
- What guarantee comes with the work
- How the colour is chosen
- Who turns up on the day
DIY sealant or a professional job?
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.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Frames and glazing around Dawsholm
Historic houses like Tenement House (about 2.5 miles south-east) are a reminder that the area around Dawsholm has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Much of Glasgow is built from red and blond sandstone, and sandstone is porous, so any sealant against it has to be one that won’t stain or attack it.
For site and facilities teams at buildings such as Cleveden Secondary School, larger buildings have plenty of frames, and the mastic around each one ages. Tenement House, about 2.5 miles south-east, is one of the historic houses in the wider area around Dawsholm, and older homes nearby need a sealant that suits their walls.
Dawsholm is about 1 mile north of Dowanhill, in Glasgow. Homes, rented property, offices and hotels in Dawsholm can book us for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Our area takes in 183 places across Glasgow.
We cover every part of G20, G12 and G13 for window mastic and the streets around it. Window mastic is available to properties on Ilay Road, Cowal Road and Temple Road. If you are just outside Dawsholm, we cover Kelvindale (1 mile south), Temple (1 mile west), Netherton (1 mile west), Anniesland Cross (1 mile south-west) and Kelvinside (1 mile south). Within a short drive, we also cover Glasgow (3 miles south-east), Garnethill (3 miles south-east), Anderston (3 miles south-east), Calton (4 miles south-east), Blythswood Hill (3 miles south-east) and Langside (5 miles south).
Near you in Dawsholm
Locally, jobs take us to homes and businesses close to Dawsholm Park, Lock 27 pub and Glasgow University Library. There’s a railway station in Dawsholm itself: Kelvindale station. Other landmarks nearby include Glasgow Museum of Transport (2 miles south) and Gartnavel General Hospital (1 mile south). Not far away are Castle Hill and Kilmardinny.
How the visit works
At the end, we look at the finished work together. The visit itself normally takes a few hours for a handful of frames, longer for a whole house, depending on how much there is to do. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. In Dawsholm, it helps to know the floor, the door entry arrangements and the nearest parking.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
- Clear the area around the work
Ask for a quote
For a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Advice
Dawsholm questions
How do repairs to the shared parts of a tenement in Dawsholm get organised?
Most tenements arrange shared repairs through the owners or a property factor. The Tenements (Scotland) Act 2004 covers the common parts where the deeds don’t.
Can you help a landlord with a rental near Kelvindale station?
Yes, we work for letting agents and landlords. Just send an email to info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear price.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Do you come to Dawsholm?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, and that includes Dawsholm.
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.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Can new window sealant be painted?
It depends on the sealant. Silicone isn’t paintable, but some hybrid sealants are. Tell us if you’re decorating and we will choose accordingly.
Do you have insurance?
Yes. We are fully insured, and we can confirm the details when we quote.
What the job involves on each surface
Patio & French doors
Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.
When something else is needed
In fairness, some problems need a different trade:
- Soft or decayed wood in the frame
- A sash or casement that will not close properly
- Damp problems in the wall away from the window
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer.
Surfaces we seal
- Window sills
- Timber windows & doors
- Composite doors
- Patio & French doors
- uPVC windows
- Aluminium frames
Towns and villages near Dawsholm
More services for Dawsholm
Work for landlords, hotels and businesses
We work for letting agents and landlords as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
How we quote for window mastic
You’ll get a clear quote before any work starts. It takes into account:
- How easy the joints are to reach
- Whether there’s mould to deal with
- The type of sealant required
- The old material and how stubborn it is
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, drop us a line at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Asking for a quote
When you call or email, these details help:
- Any previous sealing or DIY work
- The problem you’ve noticed
- The rough size of the job
- If it’s domestic, commercial or a hotel
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.