Highland · Scotland
Sand mastic for sash & case windows in Glencoe, Highland
Our applicators work in Glencoe on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Crumbling sand mastic round a window
- Modern sealant on a period surround
- Cracked mastic round a front door frame
What we can’t put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Putty and glazing repairs
- Whether work needs listed building consent
- Masonry that needs repairing
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly.
Surfaces we seal
- Sash and case windows
- Brick reveals
- Stone surrounds
- Timber door frames
- Tenement windows
- Period & listed homes
How we handle sand mastic in Glencoe
Sand mastic suits most period window surrounds. Newer frames normally get a flexible sealant instead, and we will talk through which suits your home. Typical jobs include gaps round a timber door in stone or brick and old sand mastic that has cracked, crumbled or fallen out, across tenement windows, timber door frames and sash and case windows.
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.
Our work is backed for twelve months.
- Where
- Glencoe (PH49)
- Region
- Highland
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Questions from Glencoe
Will you come out to Glencoe?
Yes, we do. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Glencoe in your area for sand mastic?
Yes, Glencoe is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply drop us a line at info@mrmastic.co.uk.
Is the work guaranteed?
Every job comes with our one-year guarantee.
What does sand mastic cost?
Every job is different, so each one gets its own quote. To get one, send an email to info@mrmastic.co.uk and tell us what needs doing and where.
Do you work for landlords and businesses?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
Can you replace silicone on a period window with sand mastic?
Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.
When will the new mastic be hard?
The surface skins quite quickly and it hardens fully over a longer time. The weather and joint depth both affect it.
When to call us in Glencoe
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
Any of these means the joints need attention:
- Mastic dropping out of the joint
- Gaps where the frame meets the masonry
- Cement or filler used on old window joints that has cracked
- Wind and rain getting in round a sash window
If you live in an older home near Episcopal Church Of St Mary, the joint between an old wall and a newer frame is usually the first place rain gets in.
Questions to ask before booking
- What the quote includes, VAT included or not
- Which colour the sealant will be
- What the cure time is
- How long the guarantee is
The process
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a single window, longer for several. For a place like Glencoe, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Advice
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured for the work.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Ask us before painting near the mastic
- Plan mastic work ahead of painting
- Avoid patching sand mastic with silicone
- Have rotten timber repaired before new mastic goes in
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Can I do it myself?
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.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Nearby places to Glencoe
Other services in Glencoe
What the job involves on each surface
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
What sand mastic looks like in Glencoe
Glencoe is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. 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.
Around Glencoe, as everywhere, sand mastic is only as good as the preparation behind it.
Glencoe is in Highland. Glencoe gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Glencoe is one of 253 places in Highland we cover for sand mastic. For nearby work, see our Glasgow page.
Jobs for sand mastic in PH49 works the same way as everywhere else we cover. If you’re just outside Glencoe, we cover Ballachulish (1 mile west), Kentallen (5 miles west), Inchree (5 miles north-west), Kinlochleven (6 miles east) and Kinlochmore (6 miles north-east). We also work in nearby towns such as Fort William (9 miles north), Caol (11 miles north) and Inverlochy (10 miles north). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Local landmarks in Glencoe
Other landmarks nearby include Glencoe Folk Museum (within half a mile east). Open spaces near Glencoe include Loch Achtriochtan.
