Argyll and Bute · Scotland
External Mastic in Keills
We cover Keills for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Cracked joints where brick meets render or frames
- Joints with sealant missing in places
- Weathered mastic that no longer stretches
Outside joints around Keills
Keills 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 is hard on movement joints and outside wall joints, especially on the side facing the sea. Keills 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 Keills, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Keills is in Argyll and Bute. Across the PA46 area, our applicators can take on external mastic. Across Argyll and Bute, we cover 118 places, Keills among them. There’s also a page for Glasgow, roughly 72 miles from Keills.
Work in PA46 is quoted and booked the same way as anywhere else. We also cover the places around Keills: Port Askaig (1 mile north-east), Bunnahabhain (3 miles north), Craighouse (7 miles east), Bowmore (8 miles south-west) and Port Charlotte (12 miles south-west). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Around Keills
Nearby you’ll also find Finlaggan Castle (1.8 miles west). Open spaces near Keills include Loch Ballygrant and Beinn Dubh.
How we handle external mastic in Keills
Movement joints let brickwork, render and cladding expand and shrink without cracking. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. We work on façade panels, copings & trims and render & cladding joints, and the jobs we see most are movement joints filled with mortar instead of sealant and damp patches traced to an open external joint.
Outside joints can only be sealed when they’re dry, so work in Keills depends on the weather, and longer journeys are planned in advance. Tell us how to reach each wall, gutter and roofline.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Keills (PA46)
- 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
Common questions in Keills
Is Keills within the area you cover?
Yes, Keills is covered. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Keills in your area for external mastic?
Yes. We work across all of Scotland, and Keills is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
How the job changes by surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Why act early in Keills
Done well, a resealed joint is a neat, straight line that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner, so it pays to do it properly once. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Doing several joints on one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why choose Mr Mastic in Keills
- We agree the colour with you first
- 4.9 on Google from 180+ five-star reviews
- An ARBOMaster approved applicator
- A sealant colour to suit the surroundings
See our cost guide and our reviews.
When to call us in Keills
Using the wrong sealant is another common reason. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, and it tears off the sides.
Common reasons people contact us include:
- Leaking joints around cladding and façade panels
- Sealant pulling away from one side of the joint
- Weeds or debris growing in open joints
- Joints with sealant missing in places
Whether the job is in Keills itself or nearby, the right material for each joint matters as much as a neat finish.
Questions to ask before booking
- What guarantee comes with the work
- How hidden problems are handled
- Whether the sealant suits the joint
- How much experience the applicator has
For landlords and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for.
How it works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours to a few days, depending on the length of joint and the access. For a place like Keills, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- For indoor joints, keep the area dry beforehand if you can
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
For external mastic in Keills, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before we start.
Advice
What affects the quote in Keills
Your quote is based on your job. We take into account:
- The amount of work
- Whether old sealant or filler has to be cut out
- Access and height
- Which sealant suits the joint
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- Access, such as stairs, a lift or height
- The type of property
- The address or postcode of the job
- How many joints, rooms or windows are involved
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, send an email to info@mrmastic.co.uk.
Places near Keills
More services for Keills
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.