Glasgow · Scotland
Sand mastic for sash & case windows in Millerston, Glasgow
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Millerston, with a one-year guarantee on every job. Ask us for a quote.
- Mastic round period door frames that has failed
- Cement or filler used on old window joints that has cracked
- Open joints round the window box
Sand mastic in Millerston
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 stone surrounds, sash and case windows and timber door frames, and common reasons people get in touch are cracked mastic round a front door frame and gaps where the frame meets the masonry.
Scotland’s cities are full of stone-built tenements and terraces, in sandstone or granite. Natural stone around older windows needs a sealant that will not mark or attack it, so acetoxy silicones, which can attack some stone, are best avoided.
Every job is covered by a one-year guarantee, wherever you are in Glasgow.
- Where
- Millerston (G33)
- Wider area
- Glasgow
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Surface by surface
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
How we quote for sand mastic
Every job gets its own quote. These are the things that affect it:
- Any mould that needs treating
- How much there is to do
- Access and height
- How much old sealant there is and how hard it is to remove
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and give you a clear quote before any work starts.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- A few pictures by email, if you can
- Whether it’s a home or a business
- What’s wrong with the joints now
- If someone has resealed it before
We quote each job on its own, so start by telling us what you need. Simply drop us a line at info@mrmastic.co.uk and describe the job and send photos if you have them.
Your questions about sand mastic in Millerston
Can you do sand mastic in Millerston?
Yes. We work across all of Scotland, and Millerston is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
Can you help a landlord with a rental near Robroyston station?
Yes. We work for letting agents and landlords as well as homeowners. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear price.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Do you have insurance?
Yes. Full insurance covers our work.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Is sand mastic better than silicone for my windows?
We’ll help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
What guarantee comes with the work?
Our 12-month guarantee applies to all our work.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Leave it or put it right?
Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad and new mastic seals them. In a tenement flat in Millerston, a failed seal is rarely just your problem: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start.
What you get with us
- Homes, businesses and hotels
- Over 20 years’ experience
- A 12-month guarantee on all work
- Tidy, careful work
Read what affects the cost and what customers say.
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Sort the mastic before the decorators arrive
- Find out about consent before window work on a listed home
- Keep modern sealant off the mastic
- Ask a joiner to look at soft timber first
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
How it works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours per window, depending on the condition of the joints. Inside a flat in Millerston, the job is planned with you; outside, shared parts may need the factor or other owners involved. It helps to know which it is when you get in touch.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Before we arrive
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
- Mention any parking rules near the property
Get a quote
To get a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
Read more
Millerston homes and the weather
Glasgow’s tenements are largely red and blond sandstone, and sandstone is porous, so any sealant against it has to be one that will not stain or attack it. The Tenements (Scotland) Act 2004 sets out how owners share the upkeep of common parts like the roof and outside walls, often through a property factor. Windows generally belong to the flat, but the title deeds have the final say.
For landlords with property near Robroyston station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Millerston is about 2 miles south-east of Bishopbriggs, in Glasgow. We provide sand mastic to householders, landlords and businesses in Millerston and nearby. Across Glasgow, we cover 183 places, and Millerston is one of them.
We work across G33 for sand mastic and the streets around it. Streets in the area include Comrie Road, Station Road and First Avenue, all of which we cover. If you’re just outside Millerston, we cover Hogganfield (1 mile south-west), Craigend (1 mile south), Robroyston (1 mile north-west), Stepps (1 mile east) and Ruchazie (1 mile south). We also work in nearby towns such as Glasgow (5 miles south-west), Hillhead (5 miles west), Dowanhill (5 miles west), Woodlands (4 miles west), Woodside (4 miles west) and North Kelvinside (4 miles west).
Local landmarks in Millerston
There’s a railway station in Millerston itself: Robroyston station. Nearby you will also find Bedlay Castle (3.1 miles north-east) and Glasgow Fort (1.5 miles south-east). Green spaces nearby include Lenzie Moss and Hogganfield Loch.
Places near Millerston
What else we do in Millerston
Common problems we fix in Millerston
Previous repairs in cement or silicone often trap water or crack away. They don’t move with the timber and we normally remove them.
Any of these means the joints need attention:
- Mastic round period door frames that has failed
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
- Old sand mastic that has cracked, crumbled or fallen out
Provand's Lordship, about 3.2 miles south-west, is one of the historic houses in the wider area around Millerston.
What to look for in a quote
- Whether they seal over old material or remove it
- How much experience the applicator has
- How the colour is chosen
- What the quote includes, VAT included or not