Glasgow · Scotland
Kelvinside Sand Mastic
Our applicators work in Kelvinside on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Mastic that needs renewing before redecorating
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic round period door frames that has failed
Sand mastic in Kelvinside, done properly
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. We work on period & listed homes, stone surrounds and brick reveals, and common reasons people get in touch are tired mastic found when preparing windows for paint and silicone on a period window that looks wrong.
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 Kelvinside, and in a tenement the outside of the building may be a shared repair.
There’s a 12-month guarantee on every job.
- Where
- Kelvinside (G12, G11, G20)
- Region
- Glasgow
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
The process
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours per window, depending on the condition of the joints. Parking in city streets around Kelvinside can be tight or controlled, so it helps to know about permits or nearby bays. For flats, mention the door entry system and any shared-stair arrangements.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- On commercial sites, let us know about site rules
- Clear the area around the work
- Keep pets and children clear of the area while we work
Get a quote
For sand mastic in Kelvinside, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Related advice
How we quote for sand mastic
Every job gets its own quote. This is what makes a difference:
- The product the joint needs
- When we can work, for business premises
- Whether there’s mould to deal with
- The size of the job
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The address or postcode of the job
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, drop us a line at info@mrmastic.co.uk.
Why deal with it now?
An open joint round the frame lets weather in. Left, water can reach the timber and the wall so renewing it early protects the window. Private landlords in Kelvinside 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.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why us?
- 180+ five-star Google reviews
- Over 20 years’ experience
- We leave the area clean and tidy
- A 12-month guarantee on all work
Towns and villages near Kelvinside
What else we do in Kelvinside
Kelvinside homes and the weather
Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
For landlords with property near Hyndland station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Schools such as Cleveden Secondary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Kelvinside is about 2 miles north-west of Glasgow, in Glasgow. Wherever you are in the G12 postcode area, we can carry out sand mastic at your property. Across Glasgow, we cover 183 places, Kelvinside among them.
Work in G12, G11 and G20 is quoted and booked the same way as anywhere else. That includes homes and businesses on Kew Lane, Ford Road and Dudley Lane and the roads around them. Close by, we work in Hyndland (1 mile south-west), Dowanhill (1 mile south), Kelvindale (1 mile north-west), Partickhill (1 mile south) and Partick (1 mile south). Further out, we also cover Calton (3 miles south-east), Langside (4 miles south), Yoker (3 miles west), Mount Florida (5 miles south-east), Hillpark (5 miles south) and Shawlands (4 miles south).
Landmarks near Kelvinside
Around Kelvinside, our work takes us to homes and buildings near Dawsholm Park, Church Street Primary School and Glasgow University Library and the streets around them. You’ll also find The Esquire House (0.7 miles north-west) and St Peter's Boys School (0.8 miles south). There’s a railway station in Kelvinside itself: Hyndland station. Well-known places in the area include Glasgow Museum of Transport (1.1 miles south) and Chinatown (2 miles south-east). Open spaces near Kelvinside include Castle Hill and Kilmardinny.
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What the job involves on each surface
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
Keeping the joints in good condition
So the new joints stay in good condition:
- Keep modern sealant off the mastic
- Don’t paint over the new mastic
- Ask a joiner to look at soft timber first
- Keep sills and gutters clear so water drains away
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.
What we are called out for in Kelvinside
Timber swells and shrinks with the weather. That movement opens up the mastic joint over time.
It’s worth asking for a quote if you see:
- A silicone bead on a sash window that spoils the look
- Open joints round the window box
- Draughts and rain around sash boxes
- Cracked mastic round a front door frame
If you live in an older home near St John's Renfield Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
What to look for in a quote
- Which colour the sealant will be
- How the joint is cleaned and prepared
- Whether they seal over old material or remove it
- How hidden problems are handled
Common questions in Kelvinside
Do you cover Kelvinside for sand mastic?
Yes, Kelvinside is within the area we cover. We work across all of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing.
I let a flat near Hyndland station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Where is Mr Mastic based?
We work from Crawley. We cover Kelvinside and the rest of Glasgow.
How long does the job take?
A typical job takes a few hours for a single window, longer for several, including preparation and clearing up. Your quote will say how long we expect yours to take.
Can you quote for more than one area?
Yes. Just list everything you need.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
Do you remove the old sealant?
Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Ask us before decorating.