Angus · Scotland
Sand mastic for sash & case windows in Little Brechin, Angus
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Little Brechin and across Angus. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Modern sealant on a period surround
- Mastic round period door frames that has failed
- Mastic worn away on windows facing the weather
Sand mastic in Little Brechin
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. We work on sash and case windows, stone surrounds and period & listed homes, and common reasons people get in touch are gaps between timber frames and stone or brick and mastic dropping out of the joint.
Mastic can only go onto a dry joint, so outside work in Little Brechin depends on the weather. Tell us about access to all the windows and doors, upstairs included.
Your job is guaranteed for a year, as with all our work.
- Location
- Little Brechin (DD9)
- Region
- Angus
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What affects the cost of sand mastic
Every job gets its own quote. These are the things that affect it:
- Whether the work is at height
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Asking for a quote
To make quoting easier, let us know:
- What’s wrong with the joints now
- The type of property
- Whether it has been sealed before
- A few photos by email, if you can
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and send you a clear quote.
Towns and villages near Little Brechin
What else we do in Little Brechin
Keeping the joints in good condition
After the cure time, these simple habits help:
- Find out about consent before window work on a listed home
- Get any rot dealt with first
- Avoid patching sand mastic with silicone
- Do not paint over the new mastic
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
How it works
We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a single window, longer for several. Outside jobs in Little Brechin need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- 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.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Clear the area around the work
- Try not to wet indoor joints just before the visit
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
To get a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Related advice
What sealant work cannot fix
In fairness, there are a few things sealant won’t fix:
- Damaged stone surrounds
- Decisions on consent for listed homes
- Sashes that need overhauling
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before booking.
What we seal
- Period & listed homes
- Tenement windows
- Sash and case windows
- Timber door frames
- Brick reveals
- Stone surrounds
For landlords and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Housing providers, facilities teams and property managers book us too in Little Brechin and across Angus. We can quote a run of properties together, and we’re fully insured.
Little Brechin questions
Is there a guarantee on sand mastic in Little Brechin?
All our work, in Little Brechin and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Is Little Brechin in your area for sand mastic?
Yes, Little Brechin is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
How long does sand mastic take to harden?
It skins over fairly quickly but takes longer to harden fully. We will explain what to expect before we leave.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll talk you through it.
What’s sand mastic made of?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Can you replace silicone on a period window with sand mastic?
In most cases. We remove the silicone and clean the joint before the sand mastic goes in.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Are you fully insured?
Yes, we are fully insured for domestic and commercial work.
Frames and glazing around Little Brechin
Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
In and around Little Brechin, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint. For site and facilities teams at buildings such as Brechin High School, larger buildings have plenty of frames, and the mastic around each one ages.
Little Brechin is about 9 miles west of Montrose, in Angus. For sand mastic in and around Little Brechin, please drop us a line at info@mrmastic.co.uk for a quick quote. We’re based in Crawley and cover Angus. Little Brechin is one of 40 towns and villages in Angus where we work. Dundee is on our list too, about 22 miles from Little Brechin.
Work in DD9 is quoted and booked the same way as anywhere else. Other places close to Little Brechin include Unthank (2 miles south-east), Brechin (2 miles south-east), Edzell (4 miles north), Edzell Woods (5 miles north-east) and Aberlemno (6 miles south-west). Further out, we also cover Arbroath (14 miles south), Forfar (11 miles south-west), Kirriemuir (13 miles south-west), Letham (9 miles south) and Friockheim (8 miles south).
Around Little Brechin
Around Little Brechin, our work takes us to homes and buildings near Brechin Public Park, among other places. Well-known places in the area include Brechin Castle (2 miles south-east) and Stracathro Hospital (3.3 miles north-east). Open spaces near Little Brechin include Caterthun and Duns Dish.
DIY sealant or a professional job?
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. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Different surfaces, different methods
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
Stone surrounds
Stone openings are rarely perfectly straight, so the gap is not the same all the way round. Sand mastic is shaped by hand to suit.