Argyll and Bute · Scotland
Kentallen External Mastic
Our applicators work in Kentallen on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly.
- Weeds or debris growing in open joints
- Damp patches traced to an open external joint
- Old sealant gone brittle and cracked
Leave it or put it right?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. 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.
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Kentallen
- A choice of colours where the product allows
- 20+ years of sealant experience
- Anti-fungal silicone where joints get wet
- Neat joints and a tidy finish
Take a look at our cost guide and our reviews.
External mastic in Kentallen, 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, so it bonds to the two sides only and can stretch. We work on façade panels, brickwork movement joints and render & cladding joints, and the jobs we see most are water getting into walls through failed joints and weeds or debris growing in open joints.
Outside joints can only be sealed when they’re dry, so work in Kentallen depends on the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
There’s a 12-month guarantee on every job.
- Where
- Kentallen (PA38)
- Region
- Argyll and Bute
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Places near Kentallen
More services for Kentallen
Signs you need external mastic in Kentallen
If plants are growing out of a joint, the sealant has usually failed or was never there. Dirt and roots then trap moisture in the joint and make things worse.
Signs it’s time to call us include:
- Failed seals between different materials
- Leaking joints around cladding and façade panels
- Moss and dirt in joints with no sealant left
- Damp patches traced to an open external joint
Whether the job is in Kentallen itself or nearby, the right material for each joint matters as much as a neat finish.
Comparing quotes
- How much experience the applicator has
- Is VAT in the price?
- Are they insured?
- What preparation is included
Outside joints around Kentallen
Kentallen 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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
In and around Kentallen, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Kentallen is in Argyll and Bute. Jobs in Kentallen get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Argyll and Bute coverage runs to 118 places, Kentallen among them. There’s also a page for Glasgow, about 68 miles away.
Jobs for external mastic in PA38 works the same way as everywhere else we cover. We also cover the places around Kentallen: Duror (2 miles south-west), Clo Mhuillin (3 miles north), Inchree (3 miles north), Corran (3 miles north) and Ballachulish (4 miles east). Island and remote addresses take a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Landmarks near Kentallen
For a walk, there’s Ardsheal Hill and Lochan na Luireach.
The process
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints.
- Each joint is checked and the colour of the new sealant agreed.
- 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.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, send an email to info@mrmastic.co.uk.
Advice
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you are set on DIY, put the effort into 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.
How we quote for external mastic
For a quick quote, just ask. What matters most is:
- Mould in or behind the old joints
- How much there is to do
- The number of rooms or windows
- Any working-time requirements on site
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- Whether it’s a home or a business
- What’s wrong with the joints now
- Photos by email, if that’s easy
- The rough size of the job
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will talk you through the work and send you a clear quote.
Work for landlords, hotels and businesses
For anyone letting property in or around Kentallen, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
FAQs for Kentallen
Is Kentallen in your area for external mastic?
Yes, Kentallen is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Does living near the coast affect external mastic in Kentallen?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Is the work guaranteed?
Yes, for a year. If anything isn’t right with the work within the year, let us know and we will sort it.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
How much does external mastic cost in Kentallen?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
How the job changes by surface
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. We size the backing rod to the gap so the sealant is not too deep.