Glasgow · Scotland
Sand mastic for sash & case windows in Dowanhill, Glasgow
Our applicators work in Dowanhill on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Old sand mastic that has cracked, crumbled or fallen out
- Wind and rain getting in round a sash window
- Old cement repairs round a window that have failed
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Crumbling stone or brickwork round the window
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before you book.
Where we work in Dowanhill
- Timber door frames
- Stone surrounds
- Sash and case windows
- Brick reveals
- Period & listed homes
- Tenement windows
Sand mastic in Dowanhill, done properly
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. We work on period & listed homes, brick reveals and timber door frames, and the jobs we see most are modern sealant on a period surround and window mastic to renew ahead of painting.
Tenement flats in Scotland’s cities often have windows high above the street, so the mastic outside can go unchecked for years. For a flat in Dowanhill, access is the first thing to plan, and in a tenement the outside of the building may be a shared repair.
All of our work is guaranteed for twelve months.
- Place
- Dowanhill (G12, G11, G20)
- Wider area
- Glasgow
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Places near Dowanhill
What else we do in Dowanhill
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Get any rot dealt with first
- Check with your local planning authority if your home is listed
- Avoid patching sand mastic with silicone
- Go gently near the mastic when preparing windows
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
What happens if it’s left?
Not every filler suits an old window surround. Sand mastic is the like-for-like choice and that can be important for listed homes. For landlords in Dowanhill, damp and leaks can be a Repairing Standard issue, so it’s worth fixing failed sealant before a tenant reports it.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in Dowanhill
- Quality sealants from Arbo and Everbuild
- Full insurance on every job
- Old sealant always removed completely
- 4.9 on Google from 180+ five-star reviews
What we are called out for in Dowanhill
Shallow joints are a common cause. Mastic that is too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
Look out for any of the following:
- Draughts and rain around sash boxes
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
- Gaps where the frame meets the masonry
If you let a flat or house near Hyndland station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before you book
- What guarantee comes with the work
- How much experience the applicator has
- Whether the sealant suits the joint
- What happens if the job turns out different
Quotes for sand mastic in Dowanhill
We do not publish a price list, because jobs vary so much. The quote depends on:
- The old material and how stubborn it is
- Mould in or behind the old joints
- Working hours on commercial sites
- The product the joint needs
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- The type of property
- The address or postcode of the job
- What’s wrong with the joints now
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, send an email to info@mrmastic.co.uk.
Landlord and commercial work in Dowanhill
If you manage several properties in or around Dowanhill, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
What happens on the day
At the end, we look at the finished work together. The work normally takes a few hours for a single window, longer for several, depending on the amount of work. Inside a flat in Dowanhill, the job is planned with you; outside, shared parts may need the factor or other owners involved. Tell us which applies when you book.
- 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.
Getting ready for the visit
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
- Mention if the joints have been sealed before
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved and give you a clear quote.
Related advice
Your questions about sand mastic in Dowanhill
How do repairs to the shared parts of a tenement in Dowanhill get organised?
It usually 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 do not.
Do you work for landlords with property near Hyndland station?
Yes, rental work is part of what we do. Just send an email to info@mrmastic.co.uk and tell us about the property, and we will give you a clear quote.
Is it messy?
We keep the work tidy. We protect what’s around the joints.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status.
Do you guarantee sand mastic work?
All our work has a one-year guarantee, and we are fully insured.
Can I choose the sealant colour?
Normally, yes. Sealants come in white, clear, grey and other colours, and we will agree it with you first.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
What sand mastic looks like in Dowanhill
Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. Historic houses like Tenement House (about 1.4 miles south-east) are a reminder that the area around Dowanhill has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
For site and facilities teams at buildings such as Notre Dame High School, the mastic around its windows and doors needs looking after like any other building’s. Historic houses such as Tenement House, about 1.4 miles south-east, show how far back building around Dowanhill goes.
Dowanhill is about 2 miles north-west of Glasgow, in Glasgow. Across the G12 area, our applicators can take on sand mastic. Our area takes in 183 places across Glasgow, from the larger towns to small villages.
Every address in G12, G11 and G20 is covered for sand mastic, from the main roads to the quietest streets. That includes homes and businesses on Kew Lane, Dyce Lane and Ford Road and the roads around them. Other places close to Dowanhill include Partickhill (1 mile south-west), Hyndland (1 mile west), Kelvinside (1 mile north), Partick (1 mile south-west) and Thornwood (1 mile south-west). Further out, we also cover Calton (3 miles south-east), Langside (4 miles south), Yoker (3 miles west), Mount Florida (4 miles south-east), Hillpark (4 miles south) and Shawlands (3 miles south). Being one of Glasgow’s larger places, Dowanhill has every kind of property, from flats to offices.
Near you in Dowanhill
Around Dowanhill, our work takes us to homes and buildings near Church Street Primary School, Glasgow University Library and Curlers Rest pub. Also close by are St Peter's Boys School (within half a mile south) and Kelvingrove Park (0.8 miles south-east). The closest station to Dowanhill is Hyndland station, roughly 0.5 miles west of the centre. Well-known places in the area include Western Infirmary (0.5 miles south-east) and Partick Castle (0.6 miles south). Not far away are Castle Hill and Kilmardinny.