Argyll and Bute · Scotland
External Mastic in Craighouse
External mastic for Craighouse and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Rain getting behind render or cladding at a joint
- Plants rooting in failed movement joints
- Gaps where render, brick and frames meet
The process
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In smaller Scottish places, parking is normally less of an issue than access and distance. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We look at every joint and agree a colour to suit the wall.
- 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.
Getting ready for the visit
- Mention if the joints have been sealed before
- Tell us if parking is tricky
- Clear the area around the work
Ask for a quote
We quote each job on its own. Just email us at info@mrmastic.co.uk with the details and send photos if you have them.
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External mastic in Craighouse
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it. If you’re dealing with weeds or debris growing in open joints and weathered mastic that no longer stretches, we can put it right, whatever the surface.
External sealant needs dry surfaces, so outdoor work around Craighouse is planned around the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
Big or small, it’s backed by our one-year guarantee.
- Location
- Craighouse (PA60)
- Region
- Argyll and Bute
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Subsidence or other structural problems
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer.
What we seal
- Brickwork movement joints
- Façade panels
- Render & cladding joints
- Joints between brick and frames
- Copings & trims
- Concrete & block
Surface by surface
Concrete and blockwork
The face of concrete or block is often dusty, so cleaning and priming matter. We prime where the sealant needs it before sealing.
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
What happens if it’s left?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. 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 guesswork. That’s why we ask about the job first and agree the price before starting.
What you get with us
- White, clear, grey or coloured to suit, where the product allows
- Fully insured
- Rated 4.9 stars on Google
- Sealant colour chosen to suit
For landlords and businesses
Landlords and agents in Craighouse 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.
For anyone letting property in or around Craighouse, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Craighouse buildings and the weather
Craighouse 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. 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.
In and around Craighouse, as anywhere, good external mastic starts with a clean, dry, properly prepared joint. In the older streets around Craighouse Parish Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Craighouse is in Argyll and Bute. From the centre of Craighouse to the outskirts, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Argyll and Bute coverage runs to 118 places, Craighouse among them. Glasgow is on our list too, around 65 miles away.
Here we cover the PA60 postcode area for external mastic. You will find streets such as Croft Park and Otter Brae, all of which we cover. We also cover the places around Craighouse: Port Askaig (6 miles west), Keills (7 miles west), Bunnahabhain (7 miles west), Ardminish (14 miles south-east) and Bowmore (14 miles south-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.
Landmarks near Craighouse
Not far away are Lochan Gleann Astaile and Glas Bheinn.
What affects the cost of external mastic
The price is agreed before any work begins. It takes into account:
- The size of the job
- Mould in or behind the old joints
- The old material and how stubborn it is
- Working hours on commercial sites
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Asking for a quote
When you call or email, these details help:
- How many joints, rooms or windows are involved
- Any access issues, like height or stairs
- Whether it’s a home or a business
- Photos by email, if that is easy
Want a quote for external mastic? Please email us at info@mrmastic.co.uk with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Places near Craighouse
What else we do in Craighouse
Common questions in Craighouse
Does the coastal weather in Craighouse 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. Walls facing the sea are normally the first to need attention.
Do you cover smaller places like Craighouse?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.
Are you insured?
Yes, we are fully insured for every job we do.
Can you reach joints on upper floors?
It depends on the building. Send us pictures and a rough idea of the height.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you seal joints where cladding meets other materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.