Highland · Scotland
External Mastic in Banbhaidh
External mastic in Banbhaidh from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Hard, crazed mastic that has stopped moving
- Rain getting behind render or cladding at a joint
- Leaking joints around cladding and façade panels
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Failed render or damaged cladding panels
- Walls that need new movement joints cut into them
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Where we work in Banbhaidh
- Brickwork movement joints
- Façade panels
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
External mastic for homes and businesses in Banbhaidh
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the line blends in. We work on concrete & block, brickwork movement joints and façade panels, and people most often call us about old sealant gone brittle and cracked and movement joints with cracked, split or missing sealant.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. Newer houses need their movement joints and roofline trims kept sound.
You are covered for a year from the day we finish. If anything is not right with it, send an email to info@mrmastic.co.uk.
- Where
- Banbhaidh (PH33)
- Wider area
- Highland
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Surface by surface
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
Walls and rooflines in Banbhaidh
Banbhaidh is within about 3 miles 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 movement joints and outside wall joints, especially on the side facing the sea. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Around Banbhaidh, as everywhere, external mastic is only as good as the preparation behind it.
Banbhaidh (Gaelic: Banavie) is in Highland. Across the PH33 area, we cover external mastic for homes and businesses. Our area takes in 253 places across Highland, from the larger towns to small villages. For nearby work, see our Glasgow page.
All of PH33 is within our area for external mastic, from the main roads to the quietest streets. We cover properties on Old Banavie Road, Locheil Crescent and Campbell Road and the roads around them. We also cover Caol (1 mile south), Taobh Lochaidh (1 mile south-east), Corpach (1 mile west), Inverlochy (1 mile south) and Fort William (2 miles south). Remote and island addresses need a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Local landmarks in Banbhaidh
Locally, jobs take us to homes and businesses close to Black Parks and Lochaber High School, among other places. There’s a railway station in Banbhaidh itself: Banavie station. A little further out are Belford Hospital (1.8 miles south) and Treasures Of The Earth (0.9 miles west).
When to call us in Banbhaidh
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.
These are the problems we are asked about most:
- Weathered mastic that no longer stretches
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
Letting a property close to Banavie station? Then split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- How the colour is chosen
- What preparation is included
- Whether the sealant suits the joint
- Whether all the old sealant comes out first
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What we do, step by step
The work is kept neat and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours to a few days, depending on the length of joint and the access, and we explain the cure time before we leave. In smaller Scottish places, parking is usually less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
How to prepare
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
- Mention any parking rules near the property
Get a quote
Want a quote for external mastic? Please send an email to info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
Landlords, agents and businesses in Banbhaidh
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
Banbhaidh questions
Will you come out to Banbhaidh?
Yes. Banbhaidh is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Does the coastal weather in Banbhaidh 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.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Is there a guarantee?
Yes, always. There’s a 12-month guarantee on every job, large or small.
Will the new joint stand out?
We choose a sealant colour to suit the brick, stone or render. Exterior sealants come in a good range of colours.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Do you remove the old sealant?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
Do I need to be at home?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Places near Banbhaidh
What else we do in Banbhaidh
Leave it or put it right?
Resealing a run of joints in one go is usually better than patching one at a time. Joints of the same age tend to fail together. In an older home around Banbhaidh, damp from a failed joint can get into timber and plaster.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Why Banbhaidh clients choose us
- More than 20 years in sealant work
- ARBOMaster approved applicator
- 4.9 on Google from 180+ five-star reviews
- You choose the colour before work begins
Take a look at how sealant jobs are priced or our reviews.