Argyll and Bute · Scotland
External Mastic in Bunnahabhain
We cover Bunnahabhain for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Hard, crazed mastic that has stopped moving
- Gaps where render, brick and frames meet
- Joints pointed up with cement by mistake
Surface by surface
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
About our external mastic in Bunnahabhain
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing. Common call-outs are for rain getting behind render or cladding at a joint and joints with sealant missing in places, across render & cladding joints, brickwork movement joints and façade panels.
External sealant needs dry surfaces, so outdoor work around Bunnahabhain is planned around the weather. Let us know about access to every wall and roofline.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Bunnahabhain (PA46)
- Wider area
- Argyll and Bute
- Cover
- One year on every job
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When to call us in Bunnahabhain
Sometimes a movement joint was filled with mortar or a rigid filler, often by someone who didn’t know what it was for. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
If you can see any of these, it’s time to have the joints looked at:
- Sealant that has lost its bond to the brick or render
- Rigid filler in a joint that should flex
- Cracked joints where brick meets render or frames
- Old sealant gone brittle and cracked
For jobs in and around Bunnahabhain, choosing the right material for each joint is as important as a tidy finish.
Before booking anyone
- Is the old sealant removed completely?
- How the colour is chosen
- When the joint can take water or movement
- How hidden problems are handled
The process
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. Outdoor work around Bunnahabhain depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Let us know about earlier repairs to the joints
- On commercial sites, let us know about site rules
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, email us at info@mrmastic.co.uk.
Related advice
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Ask before painting over external sealant
- Look over the joints every year, ideally after winter
- Keep soil, plants and ivy away from the joints
- Keep movement joints as flexible joints, not mortar
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.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
FAQs for Bunnahabhain
Do you cover Bunnahabhain for external mastic?
Yes. Our work covers the whole of Scotland, and Bunnahabhain is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Does the coastal weather in Bunnahabhain affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Can landlords and businesses book you?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
When will the joints need doing again?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away, and reseal at that point.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is generally more efficient.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that generally means someone at home.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we have been doing sealant work for more than 20 years.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Can I do it myself?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Quotes for external mastic in Bunnahabhain
We do not publish a price list. The quote depends on:
- The product the joint needs
- When we can work, for business premises
- The old material and how stubborn it is
- Access and height
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk and we will talk you through it.
Asking for a quote
To make quoting easier, please include:
- The address or postcode of the job
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
- A few pictures by email, if you can
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Outside joints around Bunnahabhain
Bunnahabhain 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. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Bunnahabhain 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.
In and around Bunnahabhain, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Bunnahabhain is in Argyll and Bute. From the centre of Bunnahabhain to the outskirts, we cover external mastic for every kind of property, from flats and houses to offices and hotels. Bunnahabhain is one of 118 towns and villages in Argyll and Bute where we work for external mastic. Our Glasgow page covers work nearby (72 miles or so).
We cover every part of the PA46 postcode area for external mastic. We also cover the places around Bunnahabhain: Port Askaig (2 miles south), Keills (3 miles south), Craighouse (7 miles east), Bowmore (11 miles south-west) and Scalasaig (13 miles north). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
What’s near Bunnahabhain
Other landmarks nearby include Finlaggan Castle (3.8 miles south-west). For a walk, there’s Giùr-bheinn and Ardnahoe Loch.