Glasgow · Scotland
Sand mastic for sash & case windows in Dawsholm, Glasgow
Specialist sand mastic for Dawsholm: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Cement or filler used on old window joints that has cracked
- Failed mastic on an exposed elevation
- Draughty sash windows at the surround
Honest limits
In fairness, some problems need a different trade:
- Cracked or broken glass
- Whether work needs listed building consent
- Decayed frames that need repair
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Sash and case windows
- Tenement windows
- Brick reveals
- Period & listed homes
- Stone surrounds
- Timber door frames
About our sand mastic in Dawsholm
A silicone bead around a sash window can look out of place and is not always the right material. Sand mastic is the traditional choice, and we can replace one with the other. We’re often asked to deal with mastic dropping out of the joint and gaps round a timber door in stone or brick, on period & listed homes, sash and case windows and timber door frames.
In a Scottish city, many flats have windows two, three or four floors up, where failing mastic is easy to miss. For a flat in Dawsholm, access is the first thing to plan, and in a tenement the outside of the building may be a shared repair.
Big or small, it’s backed by our 12-month guarantee in Dawsholm and across Glasgow.
- Where
- Dawsholm (G20, G12, G13)
- Region
- Glasgow
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Dawsholm homes and the weather
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, and many buildings use a factor to arrange it. Who owns the windows depends on the title deeds. 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. Historic houses such as Tenement House, about 2.5 miles south-east, show how far back building around Dawsholm goes, and older homes nearby need a sealant that suits their walls. Letting a property close to Kelvindale station? Then any sash windows need sound mastic to keep draughts and rain out.
Dawsholm is about 1 mile north of Dowanhill, in Glasgow. For sand mastic in and around Dawsholm, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We cover Glasgow from our Crawley base, Dawsholm included. We cover 183 towns and villages across Glasgow, from the larger towns to small villages.
Postcode districts we cover here for sand mastic: G20, G12 and G13. We cover properties on Ilay Road, Cowal Road and Temple Road and the roads around them. Neighbouring places we cover for sand mastic include 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).
Landmarks near Dawsholm
We work in homes and buildings around Dawsholm Park, Lock 27 pub and Glasgow University Library and the streets around them. There’s a railway station in Dawsholm itself: Kelvindale station. Nearby you’ll also find Glasgow Museum of Transport (2 miles south) and Gartnavel General Hospital (1 mile south). For a walk, there’s Castle Hill and Kilmardinny.
Why act early in Dawsholm
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new work lasts. Private landlords in Dawsholm must meet the Repairing Standard, and damp or leaks can fall short of it, so failed sealant is best replaced before it becomes a complaint.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Why book with us
- We’re fully insured
- Sanitary silicone with an anti-fungal additive in wet areas
- Over 20 years’ experience
- One-year guarantee on every job
Take a look at how sealant jobs are priced or customer reviews.
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
For anyone letting property in or around Dawsholm, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
Also near Dawsholm
What else we do in Dawsholm
How the job changes by surface
Timber door frames
Door frames get knocked and soaked, so their mastic can fail sooner. We rake it out and renew it.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
Aftercare tips
To keep the joints looking good and working properly:
- Inspect the joints round the windows every year or so
- Sort the mastic before the decorators arrive
- Ask the planning authority about consent for listed or conservation-area homes
- Keep modern sealant off the mastic
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes anything from a few hours to a full day, depending on how many windows. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. For a job in Dawsholm, tell us the floor, how the door entry system works and where we can park nearby.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any leaks or damp you’ve noticed
- Tell us if parking is tricky
Get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Related advice
Common questions in Dawsholm
How is work on the outside of a tenement in Dawsholm generally arranged?
It generally goes through the owners together, or through the factor if the building has one. The Tenements (Scotland) Act 2004 sets the rules for common parts if the deeds don’t.
Can you help a landlord with a rental near Kelvindale station?
Yes, landlords and agents are among the people we work for. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like but the decision is theirs.
Is it OK to seal over old sealant?
No, it will not last. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
Should I use sand mastic or silicone?
We will help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
How do I get a quote for sand mastic in Dawsholm?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area to suit the site.