Argyll and Bute · Scotland
External & façade joints in Lochdon, Argyll and Bute
Sealing brickwork movement joints, render, cladding and façade joints in Lochdon, with a one-year guarantee on every job. Call for a quick quote.
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
- Gaps where render, brick and frames meet
External mastic in Lochdon, done properly
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. Common call-outs are for plants rooting in failed movement joints and failed seals between different materials, on concrete & block, brickwork movement joints and copings & trims.
In and around a place like Lochdon, many buildings face open ground and take the full weather. Outside joints on exposed walls work hard.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Where
- Lochdon (PA64)
- Wider area
- Argyll and Bute
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What the job involves on each surface
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two so neither cracks the other.
How it works
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours to a few days, depending on the length of joint and the access, and the area is left clean. Outdoor work around Lochdon depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Keep children and pets away from the work area
- Tell us if parking is tricky
How to get a quote
Want a quote for external mastic? Please send an email to info@mrmastic.co.uk with a few details. We will explain what we’d do and give you a clear quote before work begins.
Related advice
When it isn’t the sealant
To be straight with you, some problems need a different trade:
- Subsidence or other structural problems
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
If you are not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer.
Where we work in Lochdon
- Façade panels
- Concrete & block
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
Lochdon: your questions answered
Does the coastal weather in Lochdon affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Will you come out to Lochdon?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
How long does the job take?
Typically it takes anything from a few hours to several days, depending on the building. Larger jobs naturally take longer, and we’ll say how long yours will take.
How much does external mastic cost in Lochdon?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
What information do you need?
Let us know what needs doing and where. If we need more, we will ask.
Can a movement joint be filled with mortar?
No. Cement or mortar can’t stretch, so the joint stops doing its job. If it has already been filled, we can usually cut it out and reseal it.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
What else we do in Lochdon
Landlords, agents and businesses in Lochdon
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.
We work for letting agents and landlords as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Walls and rooflines in Lochdon
Lochdon 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’s hard on movement joints and outside wall joints, especially on the side facing the sea. Lochdon is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out.
Around Lochdon, as everywhere, external mastic is only as good as the preparation behind it.
Lochdon is in Argyll and Bute. We carry out external mastic for householders, landlords and businesses in Lochdon. Our Argyll and Bute coverage runs to 118 places, and Lochdon is one of them. Our Glasgow page covers work nearby, about 68 miles away.
Our applicators cover all of the PA64 postcode area for external mastic and the streets around it. Nearby, we also carry out external mastic in Craignure (3 miles north), Lochaline (8 miles north-west), Dunollie (8 miles east), Ganavan (8 miles east) and Oban (9 miles east). If you’re somewhere remote, the job takes a little more planning, so let us know when you get in touch.
What’s near Lochdon
A little further out are Duart Castle (1.9 miles north-east) and Mull and Iona Community Hospital (3.2 miles north).
When to call us in Lochdon
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
People generally contact us when they notice something like this:
- Sealant that has lost its bond to the brick or render
- Joints pointed up with cement by mistake
- Leaking joints around cladding and façade panels
- Moss and dirt in joints with no sealant left
For jobs in and around Lochdon, choosing the right material for each joint is as important as a tidy finish.
What your quote should include
- Who does the work, and how experienced they are
- What happens if the job turns out different
- Is VAT in the price?
- Which colour the sealant will be
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Point out the joints to other trades
- Do not let climbing plants root in the sealant
- Deal with leaking gutters that soak the joints below
- Never let anyone fill a movement joint with mortar
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.