Argyll and Bute · Scotland
Port Ellen External Mastic
Movement joints in Port Ellen need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Joints where the bead has come unstuck
- Plants rooting in failed movement joints
- Weathered mastic that no longer stretches
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Walk round the building once a year and look at the joints
- Leave the joints unpainted unless we’ve said otherwise
- Fix overflowing gutters above sealed joints
- Have failed joints looked at early
Keep pressure washers away from the sealant. High-pressure water can lift the edges over time.
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, all bigger jobs than a reseal.
External mastic in Port Ellen, done properly
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We are often asked to deal with gaps where render, brick and frames meet and damp patches traced to an open external joint, across render & cladding joints, brickwork movement joints and façade panels.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
All our work comes with our one-year guarantee, wherever you are in Argyll and Bute.
- Where
- Port Ellen (PA42)
- Region
- Argyll and Bute
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Why it’s worth doing now in Port Ellen
A failed movement joint lets water into the wall, behind render and cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why book with us
- A 12-month guarantee on all work
- Domestic, commercial and hotel work
- 4.9 on Google from 180+ five-star reviews
- Neat joints and a tidy finish
Take a look at how sealant jobs are priced or what customers say.
Towns and villages near Port Ellen
Other services in Port Ellen
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
How the visit works
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Port Ellen may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Preparing for the visit
- Move anything stored near the joints
- Let us know about parking restrictions
- Mention any tricky access
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work.
Read more
How we quote for external mastic
We quote each job individually. This is what makes a difference:
- Whether there’s mould to deal with
- Working hours on commercial sites
- Which sealant suits the joint
- The old material and how stubborn it is
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- The rough size of the job
- What’s wrong with the joints now
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we will take it from there.
FAQs for Port Ellen
Is Port Ellen within the area you cover?
Yes. Port Ellen is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Does living near the coast affect external mastic in Port Ellen?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
When will the joints need doing again?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Do you guarantee your work?
Yes. There’s a 12-month guarantee on every job.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Port Ellen buildings and the weather
Port Ellen is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. The west of Scotland is wetter than the east, which means movement joints and outside wall joints has to cope with a lot of rain.
In the older streets around St John's Church (Port Ellen), older walls, gutters and the joints where extensions meet them need a flexible sealant. Around Port Ellen, as everywhere, external mastic is only as good as the preparation behind it.
Port Ellen (Gaelic: Port Eilein) is in Argyll and Bute. Wherever you are in the PA42 postcode area, we can carry out external mastic at your property. Across Argyll and Bute, we cover 118 places, and Port Ellen is one of them. We also work in Glasgow, around 76 miles away.
Work in PA42 works the same way as everywhere else we cover. Whether your property is on Mansefield Road, Mansefield Place and Back Road or a nearby road, we can help. Close by, we work in Imeraval (1 mile west), Ardbeg (3 miles east), Bowmore (10 miles north-west), Port Charlotte (11 miles north-west) and Bun Othan (13 miles west). If you are somewhere remote, the job takes a little more planning, so mention it when you ask for a quote.
Near you in Port Ellen
A little further out are Dunyvaig Castle (2.4 miles east). The countryside around Port Ellen includes Loch nan Gabhar and The Oa.
Surface by surface
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. We reseal them with a low-modulus sealant over backing rod in a colour to suit the brick.