Argyll and Bute · Scotland
External & façade joints in Ardchattan, Argyll and Bute
External mastic across Ardchattan and nearby, with old sealant always removed completely and a 12-month guarantee.
- Movement joints with cracked, split or missing sealant
- Movement joints filled with mortar instead of sealant
- Sealant that has lost its bond to the brick or render
What happens if it’s left?
Sealing over the top of old mastic does not hold for long. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
What you get with us
- Rated 4.9 stars on Google
- Full insurance on every job
- Homes, businesses and hotels
- Neat joints and a tidy finish
Read what affects the cost or what customers say.
How we handle external mastic in Ardchattan
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. If you’re dealing with failed seals between different materials and movement joints with cracked, split or missing sealant, we can help, whatever the surface.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
The work is covered for a year after we finish. If anything is not right with it, drop us a line at info@mrmastic.co.uk.
- Place
- Ardchattan (PA37)
- Wider area
- Argyll and Bute
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What external mastic looks like in Ardchattan
Ardchattan is close to 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. The west of Scotland is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out.
Rented homes near Connel Ferry station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Ardchattan is about 40 miles north-west of Helensburgh, in Argyll and Bute. For external mastic in and around Ardchattan, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We’re based in Crawley and cover Argyll and Bute, Ardchattan included. Ardchattan is one of 118 towns and villages in Argyll and Bute we cover for external mastic. Our Glasgow page covers work nearby, about 60 miles away.
Work in PA37 is quoted and booked the same way as anywhere else. Local streets include Dunlora and Achnacree Bay View, all of which we cover. If you’re just outside Ardchattan, we cover Black Crofts (1 mile south-west), North Connel (2 miles south-west), Connel (2 miles south-west), Benderloch (2 miles north-west) and Dunbeg (4 miles south-west). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Around Ardchattan
For rail, the closest station is Connel Ferry station, roughly 1.6 miles south-west. Nearby you will also find Dunstaffnage Castle (3.1 miles south-west). Not far away are Lochan Dubh.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Keep movement joints as flexible joints, not mortar
- Act on the first splits you see
- Show decorators and builders where the movement joints are
- Look over the joints every year, ideally after winter
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
Once a joint can’t move, the wall finds another way, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Places near Ardchattan
More services for Ardchattan
Landlords, agents and businesses in Ardchattan
Landlords and letting agents in Ardchattan can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
How we quote for external mastic
You will get a clear quote before work begins. It takes into account:
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- The number and length of the joints
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
What to tell us for a quote
When you contact us, these details help:
- The rough size of the job
- A few photos by email, if you can
- How we’d reach the joints
- Any previous sealing or DIY work
To get a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. We will send you a clear quote before any work starts.
Signs you need external mastic in Ardchattan
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
The problems people usually mention when they call include:
- Brick movement joints where the sealant has split
- Weathered mastic that no longer stretches
- Sealant pulling away from one side of the joint
- Rigid filler in a joint that should flex
In the older streets around Ardchattan Parish Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
What your quote should include
- What happens if the job turns out different
- What product goes in the joint
- How long the guarantee is
- Whether all the old sealant comes out first
Questions from Ardchattan
Can you help a landlord with a rental near Connel Ferry station?
Yes, rental work is part of what we do. You can drop us a line at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before any work starts.
Does the coastal weather in Ardchattan affect outside sealant?
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.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away, and reseal at that point.
Is the work guaranteed?
Yes. Each job is guaranteed for twelve months, wherever you are.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you when we finish.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
The process
On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before we start. The work normally takes a few hours to a few days, depending on the length of joint and the access. For a place like Ardchattan, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- 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.
Preparing for the visit
- On commercial sites, let us know about site rules
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
How to get a quote
Want a quote for external mastic? Please email us at info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Read more
Should I try it myself first?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
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, and the work is guaranteed for a year.