Highland · Scotland
Sand mastic for sash & case windows in Strontian, Highland
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Strontian and across Highland. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic worn away on windows facing the weather
- Mastic round period door frames that has failed
- Gaps where the frame meets the masonry
Sand mastic in Strontian
Our applicators renew the sand mastic around sash and case 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. Common call-outs are for a silicone bead on a sash window that spoils the look and tired mastic found when preparing windows for paint, across stone surrounds, period & listed homes and sash and case windows.
In and around a place like Strontian, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Strontian (PH36)
- Wider area
- Highland
- Cover
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Frames and glazing around Strontian
Strontian is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. 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, often pointed into the wall with traditional sand mastic.
In and around Strontian, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint. If you live in an older home near Strontian Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Strontian (Gaelic: Sron an t-Sithein) is in Highland. Every kind of property in Strontian can book us for sand mastic. The work is guaranteed for a year. Across Highland, we cover 253 places, Strontian among them. Our Glasgow page covers work nearby, about 76 miles away.
Postcode districts we cover here for sand mastic: PH36. Whether your property is on Dal nan Each and Dal na Mart or a nearby road, we can help. If you’re just outside Strontian, we cover Acharacle (9 miles west), Ceann Loch Muideart (9 miles north-west), Port Appin (12 miles south-east), Appin (12 miles south-east) and Balliveolan (12 miles south). If you’re somewhere remote, a little more planning is needed, so let us know when you get in touch.
Around Strontian
Green spaces nearby include Loch Doilet.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Plan mastic work ahead of painting
- Do not run silicone over sand mastic
- Leave the new mastic unpainted
- Get any rot dealt with first
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
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.
Leave it or put it right?
Not every filler suits an old window surround. Sand mastic matches what was there and that can be important for listed homes. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Combining jobs into one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why book with us
- Approved under the ARBOMaster scheme
- A 12-month guarantee on all work
- We’re fully insured
- Trusted Arbo and Everbuild sealants
Take a look at what affects the cost and customer reviews.
Also near Strontian
More services for Strontian
When something else is needed
Sealant isn’t the answer to every problem, and we’ll tell you before we start. Sealant will not put right:
- Planning or listed building consent (your local planning authority decides)
- Sash cords, weights and draught-proofing of the sashes
- Broken panes
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
What we seal
- Period & listed homes
- Sash and case windows
- Timber door frames
- Tenement windows
- Stone surrounds
- Brick reveals
Strontian: your questions answered
Will you come out to Strontian?
Yes. Strontian is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Is sand mastic in a coastal place like Strontian any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
I rent my home. Can I book you?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and you will get one quote.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we are using and why.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
Quotes for sand mastic in Strontian
Your quote is based on your job. We look at:
- How much there is to do
- The product the joint needs
- How easy the joints are to reach
- Working hours on commercial sites
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk.
What we need to know
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- The rough size of the job
- Any access issues, like height or stairs
- What’s wrong with the joints now
For sand mastic in Strontian, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Landlords, agents and businesses in Strontian
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Housing providers, facilities teams and property managers book us too in Strontian and across Highland. We can quote a run of properties together, and we are fully insured.
How it works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours per window, depending on the condition of the joints, including the tidy-up. Outdoor work around Strontian depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
- Let us know about parking restrictions
Get a quote
Getting a quote is simple: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we will take it from there.