Argyll and Bute · Scotland
Sand Mastic in Craignure
Professional sand mastic in and around Craignure, with old sealant always removed completely and a 12-month guarantee.
- Gaps between timber frames and stone or brick
- Failed mastic on an exposed elevation
- Wind and rain getting in round a sash window
Sand mastic in Craignure: local notes
Craignure 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 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.
Around Craignure, as everywhere, sand mastic is only as good as the preparation behind it.
Craignure is in Argyll and Bute. Wherever you are in the PA65 postcode area, we cover sand mastic for homes and businesses. Craignure is one of 118 places in Argyll and Bute where we work. You can also see our page for Glasgow, about 70 miles away.
All of PA65 is within our area for sand mastic. Close by, we work in Lochdon (3 miles south), Lochaline (5 miles north-west), Achnacroish (9 miles east), Balliveolan (9 miles east) and Salen (9 miles west). Within a short drive, we also cover Oban (10 miles south-east), Dunollie (10 miles south-east) and Dunbeg (10 miles east). If you are somewhere remote, a little more planning is needed, so let us know when you get in touch.
Local landmarks in Craignure
We work in homes and buildings around Craignure Inn. Other landmarks nearby include Duart Castle (2.8 miles south-east) and Mull and Iona Community Hospital (less than half a mile north-west).
How we handle sand mastic in Craignure
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted and we will advise if you’re redecorating. Common call-outs are for old cement repairs round a window that have failed and mastic that needs renewing before redecorating, on timber door frames, brick reveals and tenement windows.
In and around a place like Craignure, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
Each job carries a 12-month guarantee, large or small.
- Where
- Craignure (PA65)
- Wider area
- Argyll and Bute
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Surface by surface
Period and listed homes
On a listed home or in a conservation area, the right material matters. Like-for-like sand mastic is normally favoured.
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we’ll confirm what’s needed.
Signs you need sand mastic in Craignure
Rain on the window surround works into any crack and loosens it further. Windows facing the weather tend to go first.
People generally contact us after spotting one of these:
- Old sand mastic that has cracked, crumbled or fallen out
- Open joints round the window box
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
If you live in an older home near Torosay Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
Comparing quotes
- What happens if the job turns out different
- Who turns up on the day
- Whether they’re fully insured
- What product goes in the joint
How it works
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work starts. Most jobs take a few hours per window, depending on the condition of the joints. Outside jobs in Craignure need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- 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
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
- Let us know about stairs, lifts or work at height
How to get a quote
For sand mastic in Craignure, send an email to 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 any work starts.
Related advice
Also near Craignure
Other services in Craignure
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Avoid patching sand mastic with silicone
- Ask a joiner to look at soft timber first
- Find out about consent before window work on a listed home
- Check the mastic when you check the paintwork
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Craignure: your questions answered
Can you do sand mastic in Craignure?
Yes. We work across all of Scotland, and Craignure is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Is sand mastic in a coastal place like Craignure any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Is sand mastic better than silicone for my windows?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant, and we’ll explain why.
Is it possible to take out silicone and use sand mastic instead?
Yes. The silicone is cut out and the joint cleaned before the sand mastic goes in.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status.
Are you insured?
Yes. We are fully insured.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
What sealant work cannot fix
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Cracked or broken glass
- Decisions on consent for listed homes
- Damaged stone surrounds
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
Surfaces we seal
- Period & listed homes
- Stone surrounds
- Timber door frames
- Brick reveals
- Tenement windows
- Sash and case windows
Landlord and commercial work in Craignure
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
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 that we can handle for you.