Argyll and Bute · Scotland
External & façade joints in Portincaple, Argyll and Bute
Problem with your movement joints in Portincaple? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Joints where the bead has come unstuck
- Plants rooting in failed movement joints
- Rain getting behind render or cladding at a joint
About our external mastic in Portincaple
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We take the old material out and do it properly. Typical jobs include gaps where render, brick and frames meet and moss and dirt in joints with no sealant left, across façade panels, brickwork movement joints and render & cladding joints.
Outside joints can only be sealed when they’re dry, so work in Portincaple depends on the weather. Let us know about access to every wall and roofline.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Portincaple (G84)
- Region
- Argyll and Bute
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Common problems we fix in Portincaple
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
The problems people usually mention when they call include:
- Leaking joints around cladding and façade panels
- Gaps where render, brick and frames meet
- Brick movement joints where the sealant has split
- Rigid filler in a joint that should flex
For landlords with property near Garelochhead station, outside joints that have cracked can let damp into a rental, so check them between lets.
Comparing quotes
- How much experience the applicator has
- Whether they seal over old material or remove it
- How long the guarantee is
- What product goes in the joint
Quotes for external mastic in Portincaple
Some jobs are bigger than they look, and some smaller. The main factors:
- Which sealant suits the joint
- The amount of work
- How many areas need sealing
- The old material and how stubborn it is
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Asking for a quote
What to tell us when you ask for a quote:
- Any access issues, like height or stairs
- Photos by email, if that is easy
- Any previous sealing or DIY work
- If it’s domestic, commercial or a hotel
Getting a quote is simple: let us know what needs doing and where. Photos by email help us understand the job, and we’ll come back to you with a quote.
What the job involves on each surface
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so its sealant has to stay flexible.
Render joints
Render is weaker at the surface than brick, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
Outside joints around Portincaple
Portincaple 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. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Portincaple 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.
Around Portincaple, as everywhere, external mastic is only as good as the preparation behind it.
Portincaple is about 8 miles north-west of Helensburgh, in Argyll and Bute. We provide external mastic to householders, landlords and businesses in Portincaple. Across Argyll and Bute, we cover 118 places, and Portincaple is one of them. Glasgow is on our list too, about 28 miles from Portincaple.
Every address in G84 is within our area for external mastic, from the main roads to the quietest streets. Other places close to Portincaple include Garelochhead (1 mile south), Mambeg (2 miles south), Rahane (4 miles south), Coulport (4 miles south) and Ardpeaton (5 miles south). Within a short drive, we also cover Helensburgh (8 miles south-east), Dunoon (11 miles south), Rhu (6 miles south-east), Sandbank (9 miles south-west), Inbhir Aora (13 miles north-west) and Innellan (15 miles south).
What’s near Portincaple
For rail, the closest station is Garelochhead station, roughly 1.4 miles south. A little further out are Faslane Castle (2.1 miles south-east). For a walk, there’s Corran Lochan and Clach Bheinn.
Your questions about external mastic in Portincaple
Does living near the coast affect external mastic in Portincaple?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. Walls facing the sea are generally the first to need attention.
Do you work for landlords with property near Garelochhead station?
Yes, rental work is part of what we do. You can email us at info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before work begins.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
Do you seal joints where cladding meets other materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
When will the joints need doing again?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Every job carries our 12-month guarantee.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Do the sealants smell?
There can be a smell while the sealant cures. Opening a window helps.
What is a movement joint?
Brickwork, render and cladding all move a little, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Leave it or put it right?
Low-modulus sealants stretch easily, so they put less strain on the joint edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. In an older home around Portincaple, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we’ll go through it with you.
Why choose Mr Mastic in Portincaple
- Rated 4.9 stars on Google
- Full insurance on every job
- Domestic, commercial and hotel work
- Sanitary silicone with an anti-fungal additive in wet areas
How the visit works
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes a few hours to a few days, depending on the length of joint and the access. For a place like Portincaple, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
- Clear items away from the joints we are working on
Ask for a quote
For external mastic in Portincaple, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Advice
Nearby places to Portincaple
What else we do in Portincaple
Landlord and commercial work in Portincaple
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
Failed sealant is one of the commonest items on a check-out report. Several properties can go on one quote.