Argyll and Bute · Scotland
Minard Sand Mastic
Problem with your window and door surrounds in Minard? We cut out the old, prepare the joints and apply the right sealant.
- Modern sealant on a period surround
- Open joints round the window box
- Cement or filler used on old window joints that has cracked
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Look over the window mastic once a year
- Have rotten timber repaired before new mastic goes in
- Check with your local planning authority if your home is listed
- Keep modern sealant off the mastic
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look before trying a quick fix.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Sand mastic in Minard, done properly
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we will talk through which suits your home. Common call-outs are for gaps between timber frames and stone or brick and mastic that needs renewing before redecorating, on brick reveals, tenement windows and stone surrounds.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Minard (PA32)
- Region
- Argyll and Bute
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Leave it or put it right?
An open joint round the frame lets weather in. Left, water can reach the timber and the wall so renewing it early protects the window. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
Why Minard clients choose us
- More than 20 years in sealant work
- Sanitary silicone with an anti-fungal additive in wet areas
- We are fully insured
- One-year guarantee on every job
See our cost guide and what customers say.
Your questions about sand mastic in Minard
Will you come out to Minard?
Yes, we do. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Does living near the coast affect sand mastic in Minard?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we’ll talk you through it.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
How long does sand mastic take to harden?
It skins over fairly quickly but takes longer to harden fully. We’ll tell you what to expect for your job.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.
When it isn’t the sealant
It helps to know what we cannot do too:
- Masonry that needs repairing
- Broken panes
- Sashes that rattle, stick or will not open
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before you book.
Joints and surfaces we work on
- Period & listed homes
- Tenement windows
- Timber door frames
- Brick reveals
- Sash and case windows
- Stone surrounds
What we’re called out for in Minard
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
The problems people generally mention when they call include:
- Old cement repairs round a window that have failed
- Mastic worn away on windows facing the weather
- Mastic that needs renewing before redecorating
- Cracked mastic round a front door frame
In and around Minard, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What the quote includes, VAT included or not
- Which sealant they’ll use, and why
- Who does the work, and how experienced they are
- How the surfaces are prepared before sealing
Landlord and commercial work in Minard
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
The process
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the job takes a few hours for a single window, longer for several for a typical job. Outside jobs in Minard need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
Ask for a quote
For a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Advice
Minard homes and the weather
Minard 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. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Whether the job is in Minard itself or nearby, the right material for each joint matters as much as a neat finish.
Minard is about 22 miles west of Helensburgh, in Argyll and Bute. Minard gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 118 places in Argyll and Bute are on our list, from the larger towns to small villages. We also work in Glasgow, about 42 miles from Minard.
Every address in PA32 is covered for sand mastic. Whether your property is on Victoria Park and Otter View or a nearby road, we can help. We also cover the places around Minard: Kilmichael Glassary (8 miles west), Strachur (8 miles north-east), Bridgend (8 miles west), Ceann Loch Gilb (9 miles south-west) and Kilmartin (9 miles west). Larger places within reach include Ardrishaig (10 miles south-west), Sandbank (15 miles south-east), Inbhir Aora (10 miles north-east) and Inveraray (10 miles north-east). If you’re somewhere remote, a little more planning is needed, so let us know when you get in touch.
Around Minard
Nearby you will also find Minard Castle (1.4 miles south). Not far away are Loch Sìtheanach.
Also in Minard
What the job involves on each surface
Stone surrounds
Old stone surrounds are often uneven, so the gap is not the same all the way round. We shape it by hand to follow the stone.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.