Orkney Islands · Scotland
Sand mastic for sash & case windows in Harray, Orkney Islands
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Harray, backed by a 12-month guarantee. Ask us for a quote.
- Silicone on a period window that looks wrong
- Mastic that needs renewing before redecorating
- Mastic worn away on windows facing the weather
Sand mastic in Harray, done properly
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. If you are dealing with patchy fillers round a sash window and window mastic to renew ahead of painting, we can help, whatever the surface.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
All our work comes with a 12-month guarantee, wherever you are in the Orkney Islands.
- Where
- Harray (KW17)
- Wider area
- Orkney Islands
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Common problems we fix in Harray
Rain on the window surround works into any crack and loosens it further. Windows facing the weather tend to go first.
These are the problems we are asked about most:
- Modern sealant on a period surround
- Gaps round a timber door in stone or brick
- Gaps where the frame meets the masonry
- Mastic that needs renewing before redecorating
In the older streets around Grimeston Congregational Chapel, the joint between an old wall and a newer frame is generally the first place rain gets in.
Comparing quotes
- Is the old sealant removed completely?
- What happens if the job turns out different
- What product goes in the joint
- Whether they’re fully insured
Also in Harray
Your questions about sand mastic in Harray
Is Harray in your area for sand mastic?
Yes. We work across all of Scotland, and Harray is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
Is Harray within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Just mention lanes, gates or anything else about the route when you book.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
What guarantee comes with the work?
Every job comes with our one-year guarantee.
What exactly is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
Should I check with the council before work on a listed or conservation-area home?
Check with your local planning authority. They decide whether consent is needed.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
Surface by surface
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
When something else is needed
To be straight with you, some problems need a different trade:
- Sashes that rattle, stick or will not open
- Broken panes
- Decisions on consent for listed homes
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
Where we work in Harray
- Stone surrounds
- Timber door frames
- Tenement windows
- Period & listed homes
- Sash and case windows
- Brick reveals
Harray homes and the weather
Harray is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Around Harray, as everywhere, sand mastic is only as good as the preparation behind it.
Harray is about 9 miles north-west of Kirkwall, in the Orkney Islands. From the centre of Harray to the outskirts, we cover sand mastic for every kind of property. Our the Orkney Islands coverage runs to 51 places, and Harray is one of them.
All of KW17 is covered for sand mastic. Close by, we work in Bimbister (1 mile south), Russland (1 mile west), Grimeston (2 miles south), Hourston (2 miles north-west) and Wasbister (3 miles south-west). Island and remote addresses take a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Around Harray
Nearby you’ll also find Corrigall Farm Museum (1.4 miles north). Green spaces nearby include Kame of Corrigall and Brodgar RSPB Reserve.
How it works
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. In smaller Scottish places, parking is usually less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- 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.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
To get a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Advice
Landlords, agents and businesses in Harray
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
What affects the quote in Harray
The quote reflects the job in front of us. We take into account:
- The size of the job
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
- Any working-time requirements on site
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part.
What to tell us for a quote
When you call or email, it’s useful to know:
- The problem you’ve noticed
- Whether it’s a home or a business
- If someone has resealed it before
- Pictures of the joints, sent by email
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.