Argyll and Bute · Scotland
Sand mastic for sash & case windows in Scarinish, Argyll and Bute
Sand mastic across Scarinish and nearby, with old sealant always removed completely.
- Old cement repairs round a window that have failed
- Draughty sash windows at the surround
- Open joints round the window box
Sand mastic in Scarinish, done properly
Across Scarinish, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. If you are dealing with tired mastic found when preparing windows for paint and gaps between timber frames and stone or brick, we can put it right, on sash and case windows, period & listed homes and brick reveals alike.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Every job is covered by a one-year guarantee.
- Where
- Scarinish (PA77)
- Region
- Argyll and Bute
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Different surfaces, different methods
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Ask a joiner to look at soft timber first
- Do not run silicone over sand mastic
- Go gently near the mastic when preparing windows
- Ask us before painting near the mastic
Don’t touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
Your questions about sand mastic in Scarinish
Does the coastal weather in Scarinish 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.
Will you come out to Scarinish?
Yes, we do. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Can I paint the new mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we will talk you through it.
Can you quote for more than one area?
Yes. Just list everything you need.
Do you offer different sealant colours?
Yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before we start.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
What guarantee comes with the work?
There’s a 12-month guarantee on every job.
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.
What affects the quote in Scarinish
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The number and length of the joints
- The type of sealant required
- How many rooms, windows or areas are involved
- Whether the work is at height
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and give you a clear quote before work begins.
Asking for a quote
When you contact us, it’s useful to know:
- Any access issues, like height or stairs
- A few photos by email, if you can
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, drop us a line at info@mrmastic.co.uk.
Landlords, agents and businesses in Scarinish
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we are fully insured.
What sand mastic looks like in Scarinish
Scarinish is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Scarinish is in the west of Scotland, which is wetter than the east, which means the mastic around older windows and doors has to cope with a lot of rain.
For an older house near a landmark such as Kirkapol Parish Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Scarinish is in Argyll and Bute. Homes, rented property, offices and hotels in Scarinish can book us for sand mastic. Every job comes with our one-year guarantee. Scarinish is one of 118 towns and villages in Argyll and Bute where we work.
Jobs for sand mastic in PA77 works the same way as everywhere else we cover. Streets in the area include Pier View and Pier Road, all of which we cover. We also cover Crossapol (3 miles west), Balemartine (5 miles south-west), Balephuil (5 miles south-west), Arinagour (13 miles north-east) and Baile Mòr (20 miles south-east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Around Scarinish
Other landmarks nearby include An Iodhlann (0.5 miles south-west). Green spaces nearby include Loch Cnoc Ibrig and Beinn Ghott.
When to call us in Scarinish
Previous repairs in cement or silicone often trap water or crack away. They don’t move with the timber and we normally remove them.
These are the problems we’re asked about most:
- Wind and rain getting in round a sash window
- Silicone on a period window that looks wrong
- Mastic worn away on windows facing the weather
- Open joints round the window box
In and around Scarinish, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Who does the work, and how experienced they are
- Whether they’re fully insured
- How hidden problems are handled
- What the cure time is
Places near Scarinish
What else we do in Scarinish
What we do, step by step
There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the work takes a few hours per window, depending on the condition of the joints in most cases. Outdoor work around Scarinish depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- Clear items away from the joints we are working on
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.