Glasgow · Scotland
Sand Mastic in Simshill
We cover Simshill for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a one-year guarantee.
- Draughts and rain around sash boxes
- Mastic dropping out of the joint
- Patchy fillers round a sash window
How we handle sand mastic in Simshill
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We work on timber door frames, tenement windows and sash and case windows, and the jobs we see most are mastic that needs renewing before redecorating and patchy fillers round a sash window.
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 Simshill, access is the first thing to plan.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Place
- Simshill (G44, G45)
- Region
- Glasgow
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How it works
You don’t need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the work takes anything from a few hours to a full day, depending on how many windows in most cases. Inside a flat in Simshill, the job is planned with you; outside, shared parts may need the factor or other owners involved. Tell us which applies when you book.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
Getting a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, send an email to info@mrmastic.co.uk.
Advice
Aftercare tips
Aftercare is simple:
- Keep modern sealant off the mastic
- Check the mastic when you check the paintwork
- Ask us before painting near the mastic
- Sort the mastic before the decorators arrive
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
What we can’t put right
We’d rather tell you now than do work that will not last, so these are the limits:
- Sash cords, weights and draught-proofing of the sashes
- Timber that has rotted
- Whether work needs listed building consent
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.
Surfaces we seal
- Timber door frames
- Period & listed homes
- Brick reveals
- Tenement windows
- Sash and case windows
- Stone surrounds
How we quote for sand mastic
The quote reflects the job in front of us. We take into account:
- Whether there’s mould to deal with
- Which sealant suits the joint
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
What you pay reflects the work, not guesswork. That’s why we ask a few questions first.
Helping us quote
To make quoting easier, please include:
- Where the job is, and your postcode
- If someone has resealed it before
- The rough size of the job
- The problem you’ve noticed
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work and give you a clear price.
Nearby places to Simshill
Also in Simshill
Simshill homes and the weather
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. 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.
For site and facilities teams at buildings such as St Margaret Mary's Secondary School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Cathcart station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Simshill is about 2 miles north-east of Giffnock, in Glasgow. We provide sand mastic to homeowners, landlords and businesses in Simshill and nearby, as part of our work across Glasgow. Simshill is one of 183 towns and villages in Glasgow we cover for sand mastic.
We work across the G44 and G45 postcode area for sand mastic and the streets around it. Sand mastic is available to properties on Elmore Lane, Sween Avenue and Rhannan Road. Close by, we work in Croftfoot (1 mile east), King's Park (1 mile north-east), Castlemilk (1 mile south-east), Polmadie (1 mile north-east) and Mount Florida (1 mile north). Within a short drive, we also cover Glasgow (3 miles north), Hillhead (5 miles north), Dowanhill (5 miles north-west), Woodlands (4 miles north), Woodside (5 miles north) and North Kelvinside (5 miles north).
What’s near Simshill
Around Simshill, our work takes us to homes and buildings near Couper Institute and Library and Cathkin Park and the streets around them. Simshill’s nearest station is Cathcart station, roughly 0.7 miles north-west. Other landmarks nearby include Glasgow Victoria Infirmary (1.4 miles north-west) and Princes Square (3.4 miles north). Green spaces nearby include Cathkin Braes.
Your questions about sand mastic in Simshill
Who arranges sealant work on the shared parts of a tenement in Simshill?
Shared parts of a tenement, such as the roof and outside walls, are normally repaired with the agreement of the owners, often through a property factor. Where the title deeds are silent, the Tenements (Scotland) Act 2004 fills the gaps. Your title deeds will say who owns the windows.
Is Simshill in your area for sand mastic?
Yes, Simshill is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Is the work guaranteed?
There’s a 12-month guarantee on every job.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in.
Where do you work from?
We work from Crawley. We cover Simshill and the rest of Glasgow.
Do you need sand mastic in Simshill?
Over the years, sand mastic weathers. It hardens, cracks and starts to come away on the stone or timber.
If you can see any of these, it’s time to have the joints looked at:
- Modern sealant on a period surround
- Wind and rain getting in round a sash window
- Weathered mastic on the most exposed windows
- Cracked mastic round a front door frame
Historic houses such as Pollok House, about 2.9 miles north-west, show how far back building around Simshill goes, and older homes nearby need a sealant that suits their walls.
Before booking anyone
- Whether the sealant suits the joint
- Who does the work, and how experienced they are
- What insurance they hold
- The length of the guarantee
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Landlord and commercial work in Simshill
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.