Highland · Scotland
Stratherrick Sand Mastic
Sand mastic in Stratherrick from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Silicone on a period window that looks wrong
- Draughts and rain around sash boxes
- Crumbling sand mastic round a window
About our sand mastic in Stratherrick
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. If you’re dealing with old sand mastic that has cracked, crumbled or fallen out and gaps round a timber door in stone or brick, we can put it right, on stone surrounds, brick reveals and period & listed homes alike.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
All of our work is guaranteed for twelve months, in Stratherrick and everywhere else we cover.

- Where
- Stratherrick (IV2)
- Region
- Highland
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Stratherrick homes and the weather
Stratherrick is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around older windows and doors to keep out. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
Whether the job is in Stratherrick itself or nearby, the right material for each joint matters as much as a neat finish.
Stratherrick is about 22 miles south-west of Inverness, in Highland. Homes, rented property, offices and hotels in Stratherrick can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Stratherrick is one of 253 places in Highland where we work for sand mastic. We also work in Dundee, about 77 miles from Stratherrick.
Every address in IV2 is within our area for sand mastic, from the main roads to the quietest streets. We also cover the places around Stratherrick: Invermoriston (4 miles north-west), Gorthleck (5 miles north-east), Fort Augustus (7 miles south-west), Newtown (9 miles south-west) and Lewiston (10 miles north). If you’re somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Around Stratherrick
The countryside around Stratherrick includes Loch Knockie and Cnoc a' Choimleum.
Leave it or put it right?
If you’re redecorating, renew the mastic first. Paint over cracked mastic will not stop the gaps, and the new mastic is traditionally left unpainted. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and send you a clear quote before we start.
Why choose Mr Mastic in Stratherrick
- A 12-month guarantee on all work
- Any old sealant cut out fully, not covered over
- Over 20 years’ experience
- We leave the area clean and tidy
See our cost guide and customer reviews.
Honest limits
We will always be straight with you, so here’s what sealant can’t fix:
- Putty and glazing repairs
- Sashes that need overhauling
- Whether work needs listed building consent
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Joints and surfaces we work on
- Tenement windows
- Sash and case windows
- Brick reveals
- Timber door frames
- Period & listed homes
- Stone surrounds
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Quotes for sand mastic in Stratherrick
Jobs vary more than people expect. The main factors:
- The size of the job
- Mould in or behind the old joints
- Working hours on commercial sites
- Whether the work is at height
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Any previous sealing or DIY work
- What’s wrong with the joints now
- How we’d reach the joints
- Where the job is, and your postcode
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, drop us a line at info@mrmastic.co.uk.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Stratherrick and across Highland. Several sites can go on one quote, and we’re fully insured.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Nearby places to Stratherrick
What else we do in Stratherrick
What we are called out for in Stratherrick
Paint, silicone or cement used over old mastic causes problems. They don’t move with the timber and we normally remove them.
The problems people normally mention when they call include:
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
- Gaps where the frame meets the masonry
- Weathered mastic on the most exposed windows
In and around Stratherrick, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Is the old sealant removed completely?
- Which sealant they’ll use, and why
- How the colour is chosen
- The length of the guarantee
Common questions in Stratherrick
Is Stratherrick within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is sand mastic in Stratherrick guaranteed?
All our work, in Stratherrick and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Can sand mastic be painted?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
How long does sand mastic take?
As a guide, most jobs take anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer.
Are you fully insured?
Yes. Full insurance covers our work.
How much does sand mastic cost in Stratherrick?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
What information do you need?
Let us know what needs doing and where, with photos by email if possible. We’ll ask anything else we need to know.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
How the visit works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It usually takes a few hours for a single window, longer for several. Around Stratherrick, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
- On commercial sites, let us know about site rules
Getting a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.
