Argyll and Bute · Scotland
External & façade joints in Lochgilphead, Argyll and Bute
External mastic for Lochgilphead, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Movement joints with cracked, split or missing sealant
- Failed seals between different materials
- Weeds or debris growing in open joints
External mastic for homes and businesses in Lochgilphead
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where mortar or filler would crack. We are often asked to deal with movement joints with cracked, split or missing sealant and joints where the bead has come unstuck, on brickwork movement joints, copings & trims and render & cladding joints.
External sealant needs dry surfaces, so outdoor work around Lochgilphead is planned around the weather, and longer journeys are planned in advance. Tell us how to reach each wall, gutter and roofline.
Your job is guaranteed for a year, as with all our work.
- Where
- Lochgilphead (PA31)
- Wider area
- Argyll and Bute
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What the job involves on each surface
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind and protects the render itself.
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.
Lochgilphead questions
Is Lochgilphead within the area you cover?
Yes, Lochgilphead is covered. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Does the coastal weather in Lochgilphead 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. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you work for letting agents?
Yes, often. We can quote for several properties at once.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
What does external mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we are using and why.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
Aftercare tips
A little care helps the new joints last. Our advice:
- Clear growth from the base of walls and joints
- Check the sealant is paintable before painting near it
- Wash walls gently around the sealant
- Check external joints each spring
Don’t paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants are not designed to be painted and spoil the finish.
Once a joint can’t move, the wall finds another way, usually as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Common problems we fix in Lochgilphead
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
Any of these means the joints need attention:
- Plants rooting in failed movement joints
- Cracked joints where brick meets render or frames
- Weathered mastic that no longer stretches
- Joints where the bead has come unstuck
Managing a site like Lochgilphead High School? Then movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before you book
- Which sealant they’ll use, and why
- What preparation is included
- Is the old sealant removed completely?
- What guarantee comes with the work
Landlord and commercial work in Lochgilphead
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.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access and we leave things clean and tidy. Somewhere like Lochgilphead may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- 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.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
- Let us know about parking restrictions
Get a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, send an email to info@mrmastic.co.uk.
Advice
When it isn’t the sealant
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- Cracking across the wall rather than at a joint
- Rising or penetrating damp from elsewhere in the wall
- Adding movement joints to masonry that has none
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before booking.
Where we work in Lochgilphead
- Concrete & block
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
Lochgilphead buildings and the weather
Lochgilphead 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 is hard on movement joints and outside wall joints, especially on the side facing the sea. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
For an older house near a landmark such as Christ Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Lochgilphead is about 27 miles west of Greenock, in Argyll and Bute. Across the PA31 area, we cover external mastic for homes and businesses. We cover 118 towns and villages across Argyll and Bute, large and small. There’s also a page for Glasgow, about 47 miles away.
Jobs for external mastic in PA31 works the same way as everywhere else we cover. If you need external mastic at a property on Oban Road, Wilson Road and Smithy Lane or anywhere close by, our applicators can take on the job. Lochgilphead is on the A83 and A816, which makes it straightforward to reach. We also cover the places around Lochgilphead: Ceann Loch Gilb (1 mile south-east), Ardrishaig (2 miles south), Cairnbaan (2 miles north-west), Bridgend (3 miles north) and Kilmichael Glassary (3 miles north). Lochgilphead is one of the larger places we cover in Argyll and Bute. For island and remote addresses, the job takes a little more planning, so mention it when you ask for a quote.
Near you in Lochgilphead
Typical jobs here are in homes near The Comm Public House, among other places. Well-known places in the area include Mid Argyll Community Hospital (0.7 miles east). The countryside around Lochgilphead includes Cam Loch.