Midlothian · Scotland
Sand Mastic in Roslin
Specialist sand mastic for Roslin: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Cement or filler used on old window joints that has cracked
- Gaps between timber frames and stone or brick
- A silicone bead on a sash window that spoils the look
Sand mastic in Roslin
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, applied by hand. On older homes, it suits the building far better than silicone. We work on period & listed homes, stone surrounds and timber door frames, and common reasons people get in touch are gaps where the frame meets the masonry and draughty sash windows at the surround.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Roslin (EH25)
- Wider area
- Midlothian
- Guarantee
- A year, on every job
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What happens if it’s left?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. In an older home around Roslin, damp from a failed joint can get into timber and plaster.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Full insurance on every job
- Arbo and Everbuild products
- Neat joints and a tidy finish
Take a look at what affects the cost or customer reviews.
Different surfaces, different methods
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
Common problems we fix in Roslin
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.
If you can see any of these, it’s time to have the joints looked at:
- A silicone bead on a sash window that spoils the look
- Cement or filler used on old window joints that has cracked
- Crumbling sand mastic round a window
- Draughty sash windows at the surround
Schools such as Lasswade High School Centre are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before you book
- How much experience the applicator has
- What guarantee comes with the work
- How the colour is chosen
- How the joint is cleaned and prepared
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Ask a joiner to look at soft timber first
- Check with your local planning authority if your home is listed
- Inspect the joints round the windows every year or so
- Go gently near the mastic when preparing windows
Don’t run silicone over the new mastic. If you see a crack, ask us to take a look rather than patching it.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
Quotes for sand mastic in Roslin
We quote each job individually. This is what makes a difference:
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
- The type of sealant required
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The problem you’ve noticed
- Where the job is, and your postcode
- Whether it’s a home or a business
- A few pictures by email, if you can
We don’t publish a 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.
Roslin homes and the weather
Many older homes in Scotland have sash and case windows, 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 sound outside sealant is part of that.
Melville Castle, about 3.4 miles north-east, is one of the historic houses in the wider area around Roslin, and older homes nearby need a sealant that suits their walls. If you let a flat or house near Eskbank station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Roslin is about 3 miles north-east of Penicuik, in Midlothian. We provide sand mastic to householders, landlords and businesses in Roslin and nearby, as part of our work across Midlothian. Roslin is one of 33 towns and villages in Midlothian where we work for sand mastic. Edinburgh is on our list too, around 6 miles away.
Our applicators cover all of EH25 for sand mastic and the streets around it. Sand mastic is available to properties on Main Street, Station Road and Widnell Square and the roads around them. Roslin sits on or near the B7003, which makes travel easy. We also cover Bilston (1 mile north-west), Rosewell (1 mile east), Auchendinny (1 mile south-west), Loanhead (1 mile north) and Polton (2 miles east). Within a short drive, we also cover Bonnyrigg (3 miles east), Dalkeith (5 miles north-east), Penicuik (3 miles south-west), Gorebridge (5 miles east), Newtongrange (4 miles east) and Mayfield (5 miles east).
Landmarks near Roslin
The closest station to Roslin is Eskbank station, about 3.7 miles north-east of the centre. A little further out are Princess Margaret Rose Orthopaedic Hospital (3 miles north) and Glencorse Museum (1.6 miles south-west). Open spaces near Roslin include Edgelaw Reservoir and The New Leaf Co-op.
What we do, step by step
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 size of the job. For a place like Roslin, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Tell us if parking is tricky
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, email us at info@mrmastic.co.uk.
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Your questions about sand mastic in Roslin
Is Roslin in your area for sand mastic?
Yes, Roslin is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
Do you cover smaller places like Roslin?
Yes, Roslin is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for letting agents?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
How long does sand mastic take to go off?
It takes a while. The skin forms first, and the full set comes later and we will give you an idea for your job.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Can tenants book the work?
Of course. Check with your landlord; we can send the quote to them too.