Argyll and Bute · Scotland
External & façade joints in Bun Othan, Argyll and Bute
Specialist external mastic for Bun Othan: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Moss and dirt in joints with no sealant left
- Joints with sealant missing in places
- Joints where the bead has come unstuck
Surface by surface
Concrete and blockwork
The face of concrete or block is often dusty, so preparation is key. A primer goes on where the product requires one before sealing.
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
How we handle external mastic in Bun Othan
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product. Typical jobs include joints where the bead has come unstuck and panel joints letting water in, across render & cladding joints, copings & trims and joints between brick and frames.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Outside joints on exposed walls work hard.
You get a one-year guarantee, the same in Bun Othan as everywhere else we work.
- Place
- Bun Othan (PA47)
- Region
- Argyll and Bute
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When it is not the sealant
We will always be straight with you, so here’s what new sealant won’t do:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Surfaces we seal
- Façade panels
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Concrete & block
- Joints between brick and frames
Quotes for external mastic in Bun Othan
Your quote is based on your job. We look at:
- How much there is to do
- Which sealant suits the joint
- Access and height
- Whether old sealant or filler has to be cut out
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it has been sealed before
- Where the property is
- Roughly how big the job is
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. We’ll send you a clear quote before any work starts.
Also near Bun Othan
What else we do in Bun Othan
The process
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It generally takes a few hours to a few days, depending on the length of joint and the access. Outdoor work around Bun Othan depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- 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.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Clear items away from the joints we are working on
- On commercial sites, let us know about site rules
Ask for a quote
Want a quote for external mastic? Please send an email to info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
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Questions from Bun Othan
Is Bun Othan within the area you cover?
Yes, Bun Othan is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do external mastic in Bun Othan?
Yes, Bun Othan is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing.
Why do you put foam in the joint first?
The foam is closed-cell backing rod. It keeps the sealant at the right depth and bonded to the sides only, which would stop it stretching.
How long does external mastic take?
A typical job takes a few hours for a handful of joints, longer for a whole elevation, including preparation and clearing up. Your quote will say how long we expect yours to take.
Do you work at height?
Each building is different. Send us photos and a rough idea of the height, and we will confirm what access is needed.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. Then send an email to info@mrmastic.co.uk.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.
Do you guarantee your work?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Deal with leaking gutters that soak the joints below
- Check external joints each spring
- Avoid pressure-washing directly into sealant joints
- Have failed joints looked at early
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
What we are called out for in Bun Othan
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
If you can see any of these, it’s time to have the joints looked at:
- Hard, crazed mastic that has stopped moving
- Brick movement joints where the sealant has split
- Damp patches traced to an open external joint
- Leaking joints around cladding and façade panels
Around Bun Othan, as everywhere, external mastic is only as good as the preparation behind it.
What your quote should include
- What insurance they hold
- Whether the sealant suits the joint
- How the colour is chosen
- What happens if they find a problem under the old sealant
Landlords, agents and businesses in Bun Othan
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Outside joints around Bun Othan
Bun Othan 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 is hard on movement joints and outside wall joints, especially on the side facing the sea. Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
If you live in an older home near St Oran’s Chapel (Orsay), an extension built onto an older house moves differently, and the joint between them takes the strain.
Bun Othan (Gaelic: Port Wemyss) is in Argyll and Bute. We provide external mastic to householders, landlords and businesses in Bun Othan and the surrounding area. Our Argyll and Bute coverage runs to 118 places, Bun Othan among them.
Our applicators cover all of PA47 for external mastic and the streets around it. External mastic is available to properties on Main Street, Shore Street and An Cnoc and the roads around them. We also cover Portnahaven (1 mile north), Port Charlotte (7 miles north-east), Bowmore (10 miles north-east), Imeraval (12 miles east) and Port Ellen (13 miles east). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Local landmarks in Bun Othan
Not far away are Beinn Tart a' Mhill.