Highland · Scotland
Balnabruich Sand Mastic
Sand mastic for Balnabruich and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Mastic that needs renewing before redecorating
- Gaps where the frame meets the masonry
- A silicone bead on a sash window that spoils the look
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
How we handle sand mastic in Balnabruich
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. We work on sash and case windows, period & listed homes and tenement windows, and people most often call us about mastic worn away on windows facing the weather and gaps between timber frames and stone or brick.
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.
There’s a 12-month guarantee on every job.
- Place
- Balnabruich (KW6)
- Wider area
- Highland
- Guarantee
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Ask us before painting near the mastic
- Keep modern sealant off the mastic
- Check with your local planning authority if your home is listed
- Ask a joiner to look at soft timber first
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
How we quote for sand mastic
Your quote is based on your job. We take into account:
- Any working-time requirements on site
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- Whether the work is at height
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What we need to know
Before you ask for a quote, have a think about:
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- A few photos by email, if you can
- How we’d reach the joints
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, drop us a line at info@mrmastic.co.uk.
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
What sand mastic looks like in Balnabruich
Balnabruich is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is 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.
Whether the job is in Balnabruich itself or nearby, the right material for each joint matters as much as a neat finish.
Balnabruich is about 24 miles south of Thurso, in Highland. Jobs in Balnabruich get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Balnabruich is one of 253 towns and villages in Highland we cover.
Postcode districts we cover here for sand mastic: KW6. Sand mastic is available to properties on Neil Gunn Road, Campbell Avenue and Achorn Road and the roads around them. If you are just outside Balnabruich, we cover Dunbeath (1 mile east), Berriedale (5 miles south-west), Lybster (7 miles north-east), Navidale (11 miles south-west) and East Helmsdale (12 miles south-west). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
What’s near Balnabruich
A little further out are Dunbeath Castle (0.8 miles south) and Laidhay Croft Museum (1 mile north-east).
Common questions in Balnabruich
Does the coastal weather in Balnabruich affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is Balnabruich in your area for sand mastic?
Yes, Balnabruich is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Can landlords and businesses book you?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
What exactly is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all.
Do you offer different sealant colours?
We will suggest a colour to suit the surroundings. The choice depends on the product the joint needs.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
How the visit works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take a few hours for a single window, longer for several. Somewhere like Balnabruich may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Mention any parking rules near the property
- Mention any tricky access
Get a quote
If you’re in Balnabruich and need sand mastic, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Advice
When to call us in Balnabruich
Timber frames move with the seasons. That movement opens up the mastic joint little by little.
Keep an eye out for these signs:
- Cement or filler used on old window joints that has cracked
- Cracked mastic round a front door frame
- Mastic worn away on windows facing the weather
- Silicone on a period window that looks wrong
In and around Balnabruich, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- What insurance they hold
- Whether you can choose the colour
- Which sealant they’ll use, and why
- Who does the work, and how experienced they are
Nearby places to Balnabruich
More services for Balnabruich
When it is not the sealant
We won’t take on work that will not last, so here’s what sealant can’t put right:
- Sash cords, weights and draught-proofing of the sashes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Masonry that needs repairing
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
Where we work in Balnabruich
- Timber door frames
- Period & listed homes
- Tenement windows
- Stone surrounds
- Sash and case windows
- Brick reveals