Dundee · Scotland
Sand mastic for sash & case windows in Drumsturdy, Dundee
Problem with your window and door surrounds in Drumsturdy? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Old cement repairs round a window that have failed
- Mastic round period door frames that has failed
- Gaps between timber frames and stone or brick
Sand mastic in Drumsturdy
We renew sand mastic around sash 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. If you have old cement repairs round a window that have failed and silicone on a period window that looks wrong, we can put it right, whatever the surface.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain.
The work is covered for a year after we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.
- Where
- Drumsturdy (DD5)
- Region
- Dundee
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

The process
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The job generally takes a few hours for a single window, longer for several, including the tidy-up. For a place like Drumsturdy, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, email us at info@mrmastic.co.uk.
Related advice
Places near Drumsturdy
More services for Drumsturdy
What we are called out for in Drumsturdy
Paint, silicone or cement used over old mastic causes problems. They do not move with the timber, and they normally need raking out.
Any of these means the joints need attention:
- Draughts and rain around sash boxes
- Gaps where the frame meets the masonry
- Cement or filler used on old window joints that has cracked
- Failed mastic on an exposed elevation
Letting a property close to Monifieth station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Comparing quotes
- Which sealant they’ll use, and why
- What happens if the job turns out different
- What guarantee comes with the work
- How the surfaces are prepared before sealing
Why deal with it now?
If you’re redecorating, renew the mastic first. Paint over cracked mastic won’t stop the gaps, and the new mastic is traditionally left unpainted. Around Drumsturdy, water from a failed joint in an older stone home can soak into timber and plaster.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why us?
- One-year guarantee on every job
- Tidy, careful work
- Old sealant always removed completely
- Trusted Arbo and Everbuild sealants
Take a look at what affects the cost and customer reviews.
How we quote for sand mastic
We quote each job individually. These are the things that affect it:
- The product the joint needs
- How easy the joints are to reach
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- The address or postcode of the job
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job.
Drumsturdy questions
Is sand mastic in a coastal place like Drumsturdy any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do you cover smaller places like Drumsturdy?
Yes, Drumsturdy is covered. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Are you insured?
Yes, we are fully insured for every job we do.
Do you offer different sealant colours?
Yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before any work starts.
How long will you be here?
It depends on the size of the job, but most jobs take anything from a few hours to a full day, depending on how many windows. We’ll tell you when we quote.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.
How the job changes by surface
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. We shape it by hand to follow the stone.
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Ask us before painting near the mastic
- Look over the window mastic once a year
- Take care around the mastic when scraping paint
- Renew mastic before redecorating the windows
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
What sand mastic looks like in Drumsturdy
Drumsturdy is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
If you live in an older home near Newbigging Parish Church And War Memorial, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Schools such as Monifieth High School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Drumsturdy is about 2 miles north-east of Broughty Ferry, in Dundee. For sand mastic in and around Drumsturdy, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We cover Dundee from our Crawley base, Drumsturdy included. Drumsturdy is one of 50 towns and villages in Dundee where we work for sand mastic. Our Dundee page covers work nearby (6 miles or so).
Here we cover the DD5 postcode area for sand mastic. Other places close to Drumsturdy include Kingennie (1 mile north-west), Newbigging (1 mile north-east), Wellbank (1 mile north-west), Bucklerheads (2 miles west) and Monikie (2 miles north-east). Within a short drive, we also cover Dundee (6 miles south-west), Stobswell (5 miles south-west), Blackness (7 miles south-west), Logie (7 miles south-west), St Marys (7 miles west) and Downfield (6 miles west).
Local landmarks in Drumsturdy
The closest station to Drumsturdy is Monifieth station, about 2.1 miles south-east. A little further out are James Guthrie Orchar Art Gallery (3.2 miles south) and Ashludie Hospital (1.5 miles south-east). Green spaces nearby include Trottick Mill Ponds.
