Highland · Scotland
External & façade joints in Arisaig, Highland
We cover Arisaig for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Sealant pulling away from one side of the joint
- Rigid filler in a joint that should flex
- Plants rooting in failed movement joints
How we handle external mastic in Arisaig
We cut out failed sealant, set the joint depth with closed-cell backing rod and reseal with a low-modulus exterior sealant. The colour is chosen to suit the brick or render. We work on render & cladding joints, joints between brick and frames and façade panels, and people most often call us about water getting into walls through failed joints and movement joints filled with mortar instead of sealant.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. On newer homes, the movement joints and roofline trims are what need watching.
Every job comes with a 12-month guarantee, wherever you are in Highland.
- Where
- Arisaig (PH39)
- Region
- Highland
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
More services for Arisaig
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Don’t let climbing plants root in the sealant
- Check external joints each spring
- Point out the joints to other trades
- Keep high-pressure jets off the joints
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
Surface by surface
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it.
Outside joints around Arisaig
Arisaig 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 movement joints and outside wall joints, especially on the side facing the sea. Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
If you let a flat or house near Arisaig station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Arisaig (Gaelic: Àrasaig) is in Highland. Wherever you are in the PH39 postcode area, our applicators can take on external mastic. Our Highland coverage runs to 253 places, and Arisaig is one of them.
Every address in PH39 is covered for external mastic, from the main roads to the quietest streets. You will find streets such as Station Road, Creag Mhor Gardens and Canon Gillies. Other places close to Arisaig include Glenancross (3 miles north), Morar (4 miles north), Mallaig (7 miles north), Ardvasar (10 miles north) and Armadale (11 miles north). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Around Arisaig
Arisaig has its own railway station: Arisaig station. Well-known places in the area include Land (under half a mile south). Not far away are Loch nan Eala.
Landlord and commercial work in Arisaig
We also work for property managers and facilities teams in Arisaig and across Highland. We can quote a run of properties together.
Landlords and letting agents in Arisaig can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.
Common problems we fix in Arisaig
Every building moves. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
Look out for any of the following:
- Weathered mastic that no longer stretches
- Sealant that has lost its bond to the brick or render
- Cracked joints where brick meets render or frames
- Movement joints filled with mortar instead of sealant
If you live in an older home near Roman Catholic Chapel, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What your quote should include
- What happens if they find a problem under the old sealant
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
- What the cure time is
Your questions about external mastic in Arisaig
Does the coastal weather in Arisaig affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Do you work for landlords with property near Arisaig station?
Yes, rental work is part of what we do. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear price.
How do I get a quote for external mastic in Arisaig?
Every job is different, so each one gets its own quote. For a quick quote, email us at info@mrmastic.co.uk and tell us what needs doing and where.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Will the new joint stand out?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We pick the one that suits your wall best.
What’s an expansion joint in brickwork?
Brickwork, render and cladding all move a little, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
What happens on the day
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the work takes a few hours to a few days, depending on the length of joint and the access in most cases. For a place like Arisaig, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Clear the area around the work
- Mention any sign-in or site rules at work premises
- Mention any tricky access
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work.
Related advice
What sealant work can’t fix
In fairness, there are a few things sealant will not fix:
- Cracked brickwork or render that needs a builder or plasterer
- Cutting new joints into brickwork, which is building work rather than sealant work
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
Where we work in Arisaig
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
- Joints between brick and frames
- Brickwork movement joints