Orkney Islands · Scotland
Tenston Sand Mastic
We cover Tenston for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly.
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
- Gaps between timber frames and stone or brick
About our sand mastic in Tenston
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. If you have mastic that needs renewing before redecorating and draughts and rain around sash boxes, we can put it right.
In and around a place like Tenston, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Tenston (KW16)
- Region
- Orkney Islands
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why it’s worth doing now in Tenston
An open joint round the frame lets weather in. Left, water can reach the timber and the wall, so dealing with it now protects both. In an older home around Tenston, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Why us?
- Quality sealants from Arbo and Everbuild
- Anti-fungal silicone where joints get wet
- Every job guaranteed for a year
- 180+ five-star Google reviews
Read what affects the cost or customer reviews.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Go gently near the mastic when preparing windows
- Plan mastic work ahead of painting
- Don’t run silicone over sand mastic
- Leave the new mastic unpainted
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look before trying a quick fix.
Sound mastic protects the frame. Failed mastic lets water reach the timber, which can lead to rot.
Signs you need sand mastic in Tenston
Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
Most people get in touch when they notice something like this:
- Draughty sash windows at the surround
- Gaps round a timber door in stone or brick
- Mastic worn away on windows facing the weather
- Tired mastic found when preparing windows for paint
Skaill House, about 2.8 miles north-west, is one of the historic houses in the wider area around Tenston, and older homes nearby need a sealant that suits their walls.
Before booking anyone
- Whether they’re fully insured
- What the cure time is
- What product goes in the joint
- Is the old sealant removed completely?
More services for Tenston
What sand mastic looks like in Tenston
Tenston 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. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Historic houses like Skaill House (about 2.8 miles north-west) are a reminder that the area around Tenston has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
In and around Tenston, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Tenston is about 12 miles west of Kirkwall, in the Orkney Islands. Homes, rented property, offices and hotels in Tenston is covered for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. We cover 51 towns and villages across the Orkney Islands, from the larger towns to small villages.
Every address in KW16 is covered for sand mastic, from the main roads to the quietest streets. Other places close to Tenston include Wasbister (1 mile south), Russland (2 miles north-east), Hourston (2 miles north-east), Skeabrae (3 miles north) and Harray (3 miles east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Tenston
Well-known places in the area include Skara Brae Visitor Centre (2.8 miles north-west). For a walk, there’s Mill Dam of Rango and Hill of Miffia.
How the visit works
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take anything from a few hours to a full day, depending on how many windows. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- 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.
How to prepare
- Mention any sign-in or site rules at work premises
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any parking rules near the property
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, email us at info@mrmastic.co.uk.
Related advice
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Broken panes
- Decisions on consent for listed homes
- Decayed frames that need repair
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
What we seal
- Sash and case windows
- Brick reveals
- Period & listed homes
- Timber door frames
- Tenement windows
- Stone surrounds
Surface by surface
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Landlord and commercial work in Tenston
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
If you manage several properties in or around Tenston, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
Tenston: your questions answered
Will you come out to Tenston?
Yes. Tenston is within the area we cover, which takes in towns, villages and rural addresses. We work across all 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.
Do you cover Tenston for sand mastic?
Yes. Our work covers the whole of Scotland, and Tenston is part of that. You can send an email to info@mrmastic.co.uk and tell us what needs doing, and we will give you a clear price.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
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 beds in well.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Is sand mastic better than silicone for my windows?
We will help you decide. Sand mastic suits many period homes and newer frames suit modern sealant.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.