Highland · Scotland
Sand mastic for sash & case windows in Golspie, Highland
Professional sand mastic in and around Golspie, with old sealant always removed completely and a 12-month guarantee.
- Open joints round the window box
- Crumbling sand mastic round a window
- Weathered mastic on the most exposed windows
How we handle sand mastic in Golspie
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. We work on sash and case windows, brick reveals and tenement windows, and people most often call us about mastic round period door frames that has failed and gaps between timber frames and stone or brick.
Mastic can only go onto a dry joint, so outside work in Golspie depends on the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.
- Location
- Golspie (KW10)
- Wider area
- Highland
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Why deal with it now?
If you are 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.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please drop us a line at info@mrmastic.co.uk.
Why choose Mr Mastic in Golspie
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
- 4.9 on Google from 180+ five-star reviews
- Experience in homes, commercial sites and hotels
Read how sealant jobs are priced or our reviews.
What affects the quote in Golspie
We quote each job individually. These are the things that affect it:
- Whether the work is at height
- When we can work, for business premises
- Mould in or behind the old joints
- The size of the job
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, email us at info@mrmastic.co.uk for an honest opinion and a quote.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Any previous sealing or DIY work
- Whether it’s a home or a business
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 is easy.
What the job involves on each surface
Timber door frames
Round a period front door, sand mastic gives the right look.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Also near Golspie
Other services in Golspie
What sand mastic looks like in Golspie
Golspie 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. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
For landlords with property near Golspie station, older sash windows in a rental need their mastic kept sound to keep the weather out. Managing a site like Golspie High School? Then the mastic around its windows and doors needs looking after like any other building’s.
Golspie is about 27 miles north of Nairn, in Highland. Homes, rented property, offices and hotels in Golspie can book us for sand mastic. Every job comes with our one-year guarantee. 253 places in Highland are on our list, from the larger towns to small villages.
Here we cover the KW10 postcode area for sand mastic. Streets in the area include Main Street, Station Road and East Millicent Avenue, all of which we cover. If you are just outside Golspie, we cover Littleferry (3 miles south-west), Skelbo Muir (4 miles south-west), Embo (5 miles south), Brora (5 miles north-east) and Hilton (5 miles south). We also work in nearby towns such as Tain (12 miles south), Dornoch (7 miles south) and Balintore (15 miles south). 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 Golspie
There’s a railway station in Golspie itself: Golspie station. A little further out are Dunrobin Castle (1.3 miles north-east) and Dunrobin Castle Museum (1.4 miles north-east). Not far away are Loch Fleet National Nature Reserve and Ben Bhraggie.
Questions from Golspie
Can you help a landlord with a rental near Golspie station?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Is sand mastic in a coastal place like Golspie any different?
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.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
What does sand mastic cost?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
How long does sand mastic take to go off?
Not right away. It skins first and hardens fully later, and we will tell you what to expect.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
For landlords and businesses
For anyone letting property in or around Golspie, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
The process
The work is kept neat and contained to the joints we’re treating, so you can carry on as normal. The job usually takes anything from a few hours to a full day, depending on how many windows, and we explain the cure time before we leave. For a place like Golspie, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
Get a quote
Asking for a quote is easy: let us know what needs doing and where. A few photos by email make the job easier to understand, and we will come back to you with a quote.
Read more
What sealant work can’t fix
We’d rather tell you now than do work that will not last, so these are the limits:
- Cracked or broken glass
- Planning or listed building consent (your local planning authority decides)
- Sash cords, weights and draught-proofing of the sashes
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think before you book.
Where we work in Golspie
- Timber door frames
- Period & listed homes
- Tenement windows
- Brick reveals
- Stone surrounds
- Sash and case windows
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Do not run silicone over sand mastic
- Inspect the joints round the windows every year or so
- Get any rot dealt with first
- Clear gutters so water does not pour onto the windows
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall so early renewal protects both.
