Argyll and Bute · Scotland
Port Askaig External Mastic
External mastic for Port Askaig and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Failed sealant between panels on a façade
- Cracked joints where brick meets render or frames
- Weathered mastic that no longer stretches
Looking after it afterwards
After the cure time, these simple habits help:
- Make sure movement joints aren’t pointed over
- Deal with leaking gutters that soak the joints below
- Ask before painting over external sealant
- Tell anyone working on the walls about the movement joints
Keep pressure washers away from the sealant. High-pressure water can lift the edges over time.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
How we handle external mastic in Port Askaig
On houses, flats and commercial buildings across Port Askaig, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. If you have joints where the bead has come unstuck and panel joints letting water in, we can help, whatever the surface.
Outside joints can only be sealed when they’re dry, so work in Port Askaig depends on the weather. Tell us how to reach each wall, gutter and roofline.
A 12-month guarantee comes as standard.
- Where
- Port Askaig (PA46)
- Region
- Argyll and Bute
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Nearby places to Port Askaig
Other services in Port Askaig
Landlords, agents and businesses in Port Askaig
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Your questions about external mastic in Port Askaig
Does living near the coast affect external mastic in Port Askaig?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. Walls facing the sea are generally the first to need attention.
Can you do external mastic in Port Askaig?
Yes. We work across all of Scotland, and Port Askaig is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will send you a clear quote.
Can landlords and businesses book you?
Yes, regularly. We can quote for several properties at once.
Can you seal joints between two different materials?
Yes. Different materials move at different rates, so a flexible sealant is needed where they meet. The sealant is matched to both sides.
How long does external mastic last?
That varies with the weather the wall faces, how much it moves and the sealant used. Treat it as a maintenance item and look at it yearly.
Why is there a gap in my brick wall?
A vertical gap in a long brick wall is usually a movement joint. It gives the wall room to move, and it should be sealed with a flexible sealant.
How long before the joint can be used?
It depends on the product and the conditions. Before we leave, we will tell you the cure time.
Can you do several jobs on one visit?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Why act early in Port Askaig
A failed movement joint lets water into the wall and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. In a place like Port Askaig, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
Why choose Mr Mastic in Port Askaig
- Fully insured
- Rated 4.9 stars on Google
- White, clear, grey or coloured to suit, where the product allows
- We leave the area clean and tidy
See what affects the cost and customer reviews.
The process
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. Somewhere like Port Askaig may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Let us know about parking restrictions
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
Ask for a quote
We quote each job on its own. Simply drop us a line at info@mrmastic.co.uk and describe the job.
Advice
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What sealant work can’t fix
New sealant cannot fix everything, and we’ll tell you before work begins. Sealant won’t put right:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Subsidence or other structural problems
- Rising or penetrating damp from elsewhere in the wall
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before booking.
Joints and surfaces we work on
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Façade panels
- Render & cladding joints
- Joints between brick and frames
What the job involves on each surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
External mastic in Port Askaig: local notes
Port Askaig is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. 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 Port Askaig, as anywhere, good external mastic starts with a clean, dry, properly prepared joint. Whether the job is in Port Askaig itself or nearby, the right material for each joint matters as much as a neat finish.
Port Askaig (Gaelic: Port Asgaig) is in Argyll and Bute. Anywhere in PA46, our applicators can take on external mastic. Our area takes in 118 places across Argyll and Bute, large and small. For nearby work, see our Glasgow page, about 71 miles away.
Jobs for external mastic in PA46 is quoted and booked the same way as anywhere else. If you’re just outside Port Askaig, we cover Keills (1 mile south-west), Bunnahabhain (2 miles north), Craighouse (6 miles east), Bowmore (9 miles south-west) and Port Charlotte (13 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.
What’s near Port Askaig
Well-known places in the area include Finlaggan Castle (2.6 miles west). Not far away are Beinn Dubh and Ardnahoe Loch.