Argyll and Bute · Scotland
Tom nan Ragh Sand Mastic
Sand mastic for Tom nan Ragh and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Gaps where the frame meets the masonry
- Tired mastic found when preparing windows for paint
- Old cement repairs round a window that have failed
Sand mastic in Tom nan Ragh
We work across Tom nan Ragh renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. If you have window mastic to renew ahead of painting and gaps between timber frames and stone or brick, we can put it right.
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.
We stand behind the work with a one-year guarantee.
- Where
- Tom nan Ragh (PA23)
- Region
- Argyll and Bute
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Different surfaces, different methods
Stone surrounds
Stone surrounds suit sand mastic well. The finish blends with the masonry.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.
Why act early in Tom nan Ragh
Not every filler suits an old window surround. Sand mastic is the like-for-like choice and that can be important for listed homes. Around Tom nan Ragh, water from a failed joint in an older stone home can soak into timber and plaster.
What you pay reflects the work, not guesswork. That is why we ask about the job first and agree the price before starting.
Why book with us
- Old sealant always removed completely
- Approved under the ARBOMaster scheme
- Tidy, careful work
- Arbo and Everbuild products
Take a look at our cost guide and what customers say.
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours for a single window, longer for several, including the tidy-up. Somewhere like Tom nan Ragh 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 check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
How to prepare
- On commercial sites, let us know about site rules
- Move anything stored near the joints
- Plan for the work area to be out of bounds to pets and children
Ask for 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. Whenever you’re ready, send an email to info@mrmastic.co.uk.
Related advice
Tom nan Ragh: your questions answered
Is Tom nan Ragh within the area you cover?
Yes, Tom nan Ragh 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.
Is sand mastic in a coastal place like Tom nan Ragh any different?
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.
How long does sand mastic take to harden?
Not right away. The skin forms first, and the full set comes later and we’ll give you an idea for your job.
Can landlords and businesses book you?
Yes, we do. We work in homes, commercial premises and hotels, and we are fully insured.
Do you remove the old sealant?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Do I need permission for sand mastic on a listed building?
Check with your local planning authority. They’ll tell you if consent is needed for work to your windows.
Signs you need sand mastic in Tom nan Ragh
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.
Most people get in touch when they notice something like this:
- Modern sealant on a period surround
- Gaps where the frame meets the masonry
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps round a timber door in stone or brick
In and around Tom nan Ragh, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- What the cure time is
- What product goes in the joint
- What insurance they hold
- What happens if the job turns out different
Sand mastic in Tom nan Ragh: local notes
Tom nan Ragh is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
In the older streets around St Munn's Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Tom nan Ragh is about 8 miles north-west of Greenock, in Argyll and Bute. Our applicators cover sand mastic for householders, landlords and businesses in Tom nan Ragh and nearby. Tom nan Ragh is one of 118 towns and villages in Argyll and Bute where we work. We also work in Glasgow, around 29 miles away.
Here we cover the PA23 postcode area for sand mastic. Other places close to Tom nan Ragh include Kilmun (1 mile east), Sandbank (2 miles south-east), Strone (3 miles east), Dunoon (3 miles south-east) and Kirn (3 miles south-east). Within a short drive, we also cover Helensburgh (10 miles east), Rothesay (11 miles south), Rhu (8 miles east), Garelochhead (8 miles north-east), Port Bannatyne (10 miles south-west) and Innellan (7 miles south). For island and remote addresses, the job takes a little more planning, so let us know when you get in touch.
Near you in Tom nan Ragh
Well-known places in the area include Castle House Museum (3.7 miles south-east) and Cowal Community Hospital (2.8 miles south-east). For a walk, there’s Clach Bheinn and Loch Loskin.
How we quote for sand mastic
We don’t publish a price list. What we look at:
- Access and height
- Which sealant suits the joint
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Helping us quote
To help us quote quickly, let us know:
- Where the job is, and your postcode
- Roughly how big the job is
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved and send you a clear quote.
Work for landlords, hotels and businesses
For anyone letting property in or around Tom nan Ragh, several properties can go on one quote. Send us the addresses and the work at each, and pictures by email help.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.