Glasgow · Scotland
Sand mastic for sash & case windows in Finnieston, Glasgow
Specialist sand mastic for Finnieston: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Wind and rain getting in round a sash window
- Open joints round the window box
- Modern sealant on a period surround
Sand mastic in Finnieston
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. We work on sash and case windows, tenement windows and brick reveals, and common reasons people get in touch are modern sealant on a period surround and wind and rain getting in round a sash window.
Finnieston is in one of Scotland’s four big cities, where many older buildings are sandstone or granite. Natural stone around older windows needs a sealant that won’t mark or attack it, so acetoxy silicones, which can attack some stone, are best avoided.
Each job carries a 12-month guarantee.
- Place
- Finnieston (G3, G51, G11)
- Region
- Glasgow
- Cover
- One year on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Leave the new mastic unpainted
- Get any rot dealt with first
- Keep modern sealant off the mastic
- Avoid heavy scraping on the mastic joint
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Why act early in Finnieston
Filling over old, loose mastic does not last. We remove the loose material first so the new work lasts. In a Scottish city tenement, failed sealant affects more than one flat: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, 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
- We never seal over old sealant
- Anti-fungal sanitary silicone in wet areas
- Domestic, commercial and hotel work
- Approved under the ARBOMaster scheme
Read our cost guide and what customers say.
Do you need sand mastic in Finnieston?
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
People normally contact us after spotting something like this:
- Cement or filler used on old window joints that has cracked
- Mastic round period door frames that has failed
- Window mastic to renew ahead of painting
- Modern sealant on a period surround
Schools such as Glasgow Gaelic School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- Whether they seal over old material or remove it
- What the cure time is
- How the surfaces are prepared before sealing
- How hidden problems are handled
What sealant work can’t fix
New sealant can’t fix everything, and we will tell you before any work starts. Sealant won’t put right:
- Sash cords, weights and draught-proofing of the sashes
- Decayed frames that need repair
- Crumbling stone or brickwork round the window
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before booking.
What we seal
- Sash and case windows
- Tenement windows
- Stone surrounds
- Period & listed homes
- Timber door frames
- Brick reveals
Different surfaces, different methods
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
What affects the cost of sand mastic
There’s no set price list. The quote depends on:
- How easy the joints are to reach
- How much there is to do
- Any mould that needs treating
- How many areas need sealing
Doing several joints on one visit is usually more efficient than separate visits. We will give you a clear price for the lot.
What we need to know
Before you ask for a quote, have a think about:
- Any access issues, like height or stairs
- The rough size of the job
- What’s wrong with the joints now
- If someone has resealed it before
Want a quote for sand mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and give you a clear price before any work starts.
Places near Finnieston
Also in Finnieston
Frames and glazing around Finnieston
Much of Glasgow is built from red and blond sandstone, and porous sandstone needs a sealant that won’t mark it. Historic houses like Tenement House (about 0.9 miles north-east) are a reminder that the area around Finnieston has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you live in an older home near Sandyford Henderson Memorial Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Exhibition Centre station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Finnieston is about 1 mile north-west of Glasgow, in Glasgow. If you need sand mastic in Finnieston, please drop us a line at info@mrmastic.co.uk for a quick quote. We’re based in Crawley and cover Glasgow. Finnieston is one of 183 places in Glasgow where we work for sand mastic.
Jobs for sand mastic in G3, G51 and G11 works the same way as everywhere else we cover. That includes homes and businesses on Kent Road, Haugh Road and Bunhouse Road. Nearby, we also carry out sand mastic in Kelvinhaugh (1 mile north-west), Kelvingrove (1 mile north-east), Sandyford (1 mile east), Plantation (1 mile south) and Cessnock (1 mile south-west). Further out, we also cover Langside (3 miles south), Yoker (4 miles north-west), Mount Florida (3 miles south-east), Hillpark (3 miles south), Temple (3 miles north-west) and Merrylee (4 miles south).
Landmarks near Finnieston
Around Finnieston, our work takes us to homes and buildings near Kelvingrove Park, Old Toll Bar and Glasgow University Library and the streets around them. You’ll also find College of Piping (0.9 miles north), Lorne Street Primary School (0.6 miles south) and St Vincent Street Church (0.9 miles east). Finnieston has its own railway station: Exhibition Centre station. A little further out are Glasgow Science Centre (within half a mile south-west) and Chinatown (1.1 miles north-east). The countryside around Finnieston includes Hogganfield Loch.
Common questions in Finnieston
Do you work for landlords with property near Exhibition Centre station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Do you cover Finnieston for sand mastic?
Yes. We work across all of Scotland, and Finnieston is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then drop us a line at info@mrmastic.co.uk.
Can I paint the new mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Is sand mastic better than silicone for my windows?
We’ll help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
How long will you be here?
Most jobs take a few hours for a single window, longer for several, including the preparation. We will confirm how long when we quote.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Can you quote for more than one area?
Yes. Just list everything you need and we will quote it together.
How the visit works
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. The job generally takes a few hours for a single window, longer for several, and we explain the cure time before we leave. In a city area like Finnieston, parking may be by permit or pay-and-display, so tell us what’s nearby. For flats, mention the door entry system and any shared-stair arrangements.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Let us know about parking restrictions
- Mention if the joints have been sealed before
- Move anything stored near the joints
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, drop us a line at info@mrmastic.co.uk.