Glasgow · Scotland
Sand mastic for sash & case windows in Drumchapel, Glasgow
Window and door surrounds in Drumchapel need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Modern sealant on a period surround
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Leave the new mastic unpainted
- Do not run silicone over sand mastic
- Avoid heavy scraping on the mastic joint
- Get any rot dealt with first
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
How we handle sand mastic in Drumchapel
A silicone bead around a sash window can look out of place and does not suit the building. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. If you have window mastic to renew ahead of painting and gaps round a timber door in stone or brick, we can put it right, on period & listed homes, sash and case windows and timber door frames alike.
Scotland’s cities are full of stone-built tenements and terraces, in sandstone or granite. Stone needs a sealant that suits it, which generally means a neutral-cure product or a traditional sand mastic rather than an acetoxy silicone.
All our work comes with a 12-month guarantee, wherever you are in Glasgow.
- Where
- Drumchapel (G15, G13, G61)
- Wider area
- Glasgow
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Frames and glazing around Drumchapel
The west of Scotland is wetter than the east, which means the mastic around older windows and doors has to cope with a lot of rain. 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.
Letting a property close to Drumchapel station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to St David's Parish Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Drumchapel is about 2 miles south-west of Bearsden, in Glasgow. Anywhere in G15, we can carry out sand mastic at your property. 183 places in Glasgow are on our list, large and small.
Work in G15, G13 and G61 works the same way as everywhere else we cover. Streets in the area include Mace Road, Fruin Road and Manor Road. We also cover Blairdardie (1 mile south-east), Old Drumchapel (1 mile south-west), Linnvale (1 mile west), Westerton (1 mile east) and Drumry (1 mile west). We also work in nearby towns such as Glasgow (5 miles south-east), Hillhead (4 miles south-east), Dowanhill (3 miles south-east), Woodlands (4 miles south-east), Woodside (4 miles south-east) and North Kelvinside (4 miles south-east).
Local landmarks in Drumchapel
Drumchapel has its own railway station: Drumchapel station. A little further out are Braehead (2 miles south) and Drumchapel Hospital (under half a mile north-east). Open spaces near Drumchapel include Kilmardinny and Castle Hill.
Common problems we fix in Drumchapel
Over the years, sand mastic weathers. It hardens, cracks and starts to come away on the stone or timber.
Any of these means the joints need attention:
- Patchy fillers round a sash window
- Mastic dropping out of the joint
- Wind and rain getting in round a sash window
- Mastic that needs renewing before redecorating
If you look after a building such as Knightswood Secondary School, larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- What product goes in the joint
- The length of the guarantee
- What the cure time is
- Who turns up on the day
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
What affects the cost of sand mastic
There’s no set price list. The quote depends on:
- The product the joint needs
- Any working-time requirements on site
- The amount of work
- Whether old sealant or filler has to be cut out
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Helping us quote
To make quoting easier, let us know:
- What’s wrong with the joints now
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
Want a quote for sand mastic? Please send an email to info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Drumchapel: your questions answered
How is work on the outside of a tenement in Drumchapel usually arranged?
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.
Is Drumchapel in your area for sand mastic?
Yes, Drumchapel 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 send you a clear quote.
Can you match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then email us at info@mrmastic.co.uk.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
How long does sand mastic take?
That depends on how much there is to do, but most jobs take anything from a few hours to a full day, depending on how many windows. We’ll give you a better idea when we quote.
Do I need permission for sand mastic on a listed building?
Checking first is sensible. Your local planning authority can say if consent is needed for listed or conservation-area properties.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
The process
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. Parking in city streets around Drumchapel can be tight or controlled, so it helps to know about permits or nearby bays. If you’re in a flat, let us know how we get in at the street door.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- 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
- Keep children and pets away from the work area
- Move anything stored near the joints
- Mention any tricky access
Getting a quote
Getting a quote is simple: let us know the job and the location. A few photos by email make the job easier to understand, and we will come back to you with a quote.
Advice
Also near Drumchapel
Also in Drumchapel
Why deal with it now?
Filling over old, loose mastic doesn’t last. We remove the loose material first so the new mastic stays put. For landlords in Drumchapel, damp and leaks can be a Repairing Standard issue, so it’s worth fixing failed sealant before a tenant reports it.
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, email us at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Why Drumchapel clients choose us
- 4.9 on Google from 180+ five-star reviews
- We never seal over old sealant
- Domestic, commercial and hotel work
- A 12-month guarantee on all work
Read how sealant jobs are priced and our reviews.
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Masonry that needs repairing
- Sashes that need overhauling
- Decisions on consent for listed homes
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
Surfaces we seal
- Period & listed homes
- Stone surrounds
- Brick reveals
- Tenement windows
- Sash and case windows
- Timber door frames