Argyll and Bute · Scotland
External & façade joints in Ardchonnell, Argyll and Bute
Our applicators work in Ardchonnell on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Gaps where render, brick and frames meet
- Joints where the bead has come unstuck
- Joints pointed up with cement by mistake
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Cracked brickwork or render that needs a builder or plasterer
- Rising or penetrating damp from elsewhere in the wall
- Failed render or damaged cladding panels
If in doubt, email us at info@mrmastic.co.uk and we will say what we think before you book.
What we seal
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Façade panels
- Render & cladding joints
- Concrete & block
About our external mastic in Ardchonnell
On houses, flats and commercial buildings across Ardchonnell, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. If you have damp patches traced to an open external joint and joints where the bead has come unstuck, we can help.
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.
Whatever the size of the job, you get the same one-year guarantee in Ardchonnell and across Argyll and Bute.
- Location
- Ardchonnell (PA35)
- Region
- Argyll and Bute
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Ardchonnell questions
Is Ardchonnell within the area you cover?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Ardchonnell in your area for external mastic?
Yes, Ardchonnell is within the area we cover. We work across all of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing, and we will give you a clear quote.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Are you fully insured?
Yes. We’re fully insured for domestic and commercial work.
How long will you be here?
A typical job takes a few hours for a handful of joints, longer for a whole elevation. Your quote will say how long we expect yours to take.
I’m a tenant. Can you help?
Yes. Check with your landlord; we can send the quote to them too.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep movement joints as flexible joints, not mortar
- Avoid pressure-washing directly into sealant joints
- Tell anyone working on the walls about the movement joints
- Keep soil, plants and ivy away from 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.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
Different surfaces, different methods
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod.
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Also near Ardchonnell
Also in Ardchonnell
Ardchonnell buildings and the weather
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Harled (roughcast) walls are common in Scotland, and joints where harling meets other materials need a sealant that can grip and flex.
For an older house near a landmark such as Dalavich Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Around Ardchonnell, as everywhere, external mastic is only as good as the preparation behind it.
Ardchonnell is about 27 miles north-west of Helensburgh, in Argyll and Bute. Every kind of property in Ardchonnell is covered for external mastic, old or new, large or small. The work is guaranteed for a year. 118 places in Argyll and Bute are on our list, large and small. You can also see our page for Glasgow, roughly 47 miles from Ardchonnell.
We work across the PA35 postcode area for external mastic. Ardchonnell is on the B840, so it’s easy for us to get to. If you are just outside Ardchonnell, we cover Inverinan (4 miles north), Inbhir Aora (8 miles east), Inveraray (8 miles east), Kilmelford (8 miles west) and Ardbrecknish (8 miles north-east). Within a short drive, we also cover Oban (13 miles north-west), Dunollie (14 miles north-west) and Dunbeg (15 miles north-west). Island and remote addresses take a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Around Ardchonnell
Other landmarks nearby include Innes Chonnel Castle (less than half a mile north). The countryside around Ardchonnell includes Loch Avich.
What we do, step by step
We bring everything the job needs with us. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours to a few days, depending on the length of joint and the access. Outside jobs in Ardchonnell need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Mention if the joints have been sealed before
- Tell us if parking is tricky
- Clear items away from the joints we’re working on
Get a quote
For a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Related advice
Why deal with it now?
Water gets in through a failed movement joint, behind render and cladding. Resealing early keeps the job to the joint itself, rather than the wall around it. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why us?
- Over 20 years’ experience
- A sealant colour to suit the surroundings
- Any old sealant cut out fully, not covered over
- Tidy, careful work
See our cost guide or our reviews.
What affects the cost of external mastic
Call for a quick quote. What matters most is:
- How many areas need sealing
- Whether the work is at height
- Working hours on commercial sites
- The type of sealant required
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Asking for a quote
When you contact us, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
- The address or postcode of the job
- Whether it has been sealed before
If you are in Ardchonnell and need external mastic, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.