Argyll and Bute · Scotland
Sand mastic for sash & case windows in West Darlochan, Argyll and Bute
Problem with your window and door surrounds in West Darlochan? We remove the old material, prepare the joints and seal them properly.
- Wind and rain getting in round a sash window
- Open joints round the window box
- Failed mastic on an exposed elevation
Sand mastic for homes and businesses in West Darlochan
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 and built up by hand. On period homes, it looks right where silicone wouldn’t. Typical jobs include mastic dropping out of the joint and gaps between timber frames and stone or brick, on timber door frames, period & listed homes and tenement windows.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
Our work is backed for twelve months.
- Where
- West Darlochan (PA28)
- Wider area
- Argyll and Bute
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
West Darlochan: your questions answered
Is West Darlochan in your area for sand mastic?
Yes. Our work covers the whole of Scotland, and West Darlochan is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
Do you cover smaller places like West Darlochan?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can tenants book the work?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Can old silicone round a sash window be swapped for sand mastic?
Yes, we do this often. The old silicone has to come out completely so the mastic can sit properly.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
What information do you need?
A short description and the location. We’ll ask anything else we need to know.
Can you seal over the old sealant?
No. We remove every bit of old sealant first.
Places near West Darlochan
Other services in West Darlochan
What we are called out for in West Darlochan
Timber frames move with the seasons. That movement opens up the mastic joint over time.
Signs it’s time to call us include:
- Mastic worn away on windows facing the weather
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
- Window mastic to renew ahead of painting
In and around West Darlochan, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
What to look for in a quote
- What product goes in the joint
- Are they insured?
- Whether all the old sealant comes out first
- How the surfaces are prepared before sealing
Can I do it myself?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
The process
Before we leave, we go over the finished joints with you. The visit itself normally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. Somewhere like West Darlochan 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.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- On commercial sites, let us know about site rules
- Let us know about parking restrictions
- Clear items away from the joints we’re working on
Getting a quote
We quote each job on its own, so start by telling us what you need. Simply email us at info@mrmastic.co.uk and describe the job, and pictures are welcome.
Related advice
What sand mastic looks like in West Darlochan
West Darlochan 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. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. 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.
If you live in an older home near Kilchenzie Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
West Darlochan is in Argyll and Bute. For sand mastic in and around West Darlochan, it’s easy to get a quote: please email us at info@mrmastic.co.uk. We cover Argyll and Bute from our Crawley base, West Darlochan included. Our Argyll and Bute coverage runs to 118 places, and West Darlochan is one of them. We also work in Glasgow, around 62 miles away.
Work in PA28 is quoted and booked the same way as anywhere else. That includes homes and businesses on Islay View and Sound of Kintyre. Close by, we work in Drumlemble (3 miles south), Campbeltown (4 miles south-east), Askomill (4 miles south-east), Kilkerran (5 miles south-east) and Southend (10 miles south). If you’re somewhere remote, the job takes a little more planning.
What’s near West Darlochan
Other landmarks nearby include Campbeltown Hospital (4.1 miles south-east) and Campbeltown Heritage Centre (3.9 miles south-east). The countryside around West Darlochan includes Skeroblin Loch.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Keep sills and gutters clear so water drains away
- Plan mastic work ahead of painting
- Keep modern sealant off the mastic
- Check the mastic when you check the paintwork
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Timber that has rotted
- Decisions on consent for listed homes
- Masonry that needs repairing
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
What we seal
- Stone surrounds
- Tenement windows
- Sash and case windows
- Period & listed homes
- Brick reveals
- Timber door frames
Quotes for sand mastic in West Darlochan
The quote reflects the job in front of us. We take into account:
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- How much there is to do
- When we can work, for business premises
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
Before you ask for a quote, have a think about:
- If someone has resealed it before
- The type of property
- Where the job is, and your postcode
- Pictures of the joints, sent by email
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved and send you a clear quote.
Surface by surface
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
Timber door frames
Round a period front door, sand mastic gives the right look.