Argyll and Bute · Scotland
Craobh Haven External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Craobh Haven, backed by a one-year guarantee. Ask us for a quote.
- Weeds or debris growing in open joints
- Panel joints letting water in
- Brick movement joints where the sealant has split
What external mastic looks like in Craobh Haven
Craobh Haven 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, so there’s plenty of rain for movement joints and outside wall joints to keep out.
For jobs in and around Craobh Haven, choosing the right material for each joint is as important as a tidy finish.
Craobh Haven is about 35 miles north-west of Helensburgh, in Argyll and Bute. Every kind of property in Craobh Haven is covered for external mastic. The work is guaranteed for a year. Across Argyll and Bute, we cover 118 places, and Craobh Haven is one of them. Our Glasgow page covers work nearby.
We work across the PA31 postcode area for external mastic. If you need external mastic at a property on King's Yard and The Green or anywhere close by, we can help. We also cover Barravullin (2 miles east), Ardfern (2 miles south), Kilmelford (4 miles north-east), Kilmartin (6 miles south-east) and Ellenabeich (6 miles north-west). We also work in nearby towns such as Oban (14 miles north), Ceann Loch Gilb (13 miles south), Lochgilphead (13 miles south), Dunollie (15 miles north) and Ardrishaig (14 miles south). For island and remote addresses, the job takes a little more planning, so let us know when you get in touch.
Near you in Craobh Haven
Nearby you will also find Craignish Castle (4 miles south). Open spaces near Craobh Haven include Druim an Achanarnich.
External mastic in Craobh Haven, done properly
Ground-floor and low-level joints are straightforward to reach. Where joints are higher up, tell us about the building when you get in touch and we’ll confirm what access is needed. If you’re dealing with movement joints filled with mortar instead of sealant and moss and dirt in joints with no sealant left, we can help.
Outside joints can only be sealed when they’re dry, so work in Craobh Haven depends on the weather, and longer journeys are planned in advance. Let us know about access to every wall and roofline.
Your job is guaranteed for a year, as with all our work.
- Place
- Craobh Haven (PA31)
- Region
- Argyll and Bute
- Cover
- One year on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
When to call us in Craobh Haven
If plants are growing out of a joint, the sealant has generally failed or was never there. Roots and dirt hold water against the wall.
The problems people usually mention when they call include:
- Plants rooting in failed movement joints
- Failed sealant between panels on a façade
- Weathered mastic that no longer stretches
- Movement joints with cracked, split or missing sealant
In and around Craobh Haven, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Before booking anyone
- What insurance they hold
- What the cure time is
- What product goes in the joint
- How the colour is chosen
Common questions in Craobh Haven
Can you do external mastic in Craobh Haven?
Yes. Our work covers the whole of Scotland, and Craobh Haven is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Does the coastal weather in Craobh Haven affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Will the new joint stand out?
We aim for a joint that suits the wall rather than one that jumps out. We’ll talk through colour options before we start.
Can you do several jobs on one visit?
Yes. Just list everything you need and you will get one quote.
How do I get a quote for external mastic in Craobh Haven?
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.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the wall cracks somewhere else instead. Use a flexible sealant with backing rod.
Nearby places to Craobh Haven
More services for Craobh Haven
How we quote for external mastic
For a quick quote, just ask. The main things that affect it are:
- The number and length of the joints
- The type of sealant required
- Whether there’s mould to deal with
- Whether the work is at height
What you pay reflects the work, not a rough estimate. That is why we ask about the job first.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Where the property is
- The rough size of the job
- How we’d reach the joints
- What the problem is, such as mould, gaps, leaks or cracking
We quote each job on its own. Just drop us a line at info@mrmastic.co.uk with the details, and pictures are welcome.
What we do, step by step
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. Most jobs take a few hours to a few days, depending on the length of joint and the access. Outdoor work around Craobh Haven depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- 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.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Before we arrive
- Move anything stored near the joints
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Read more
When it is not the sealant
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Damp that is not coming from the joint
- Walls that need new movement joints cut into them
- Structural movement, which needs a surveyor or engineer
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly before you book.
What we seal
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Concrete & block
- Copings & trims
- Brickwork movement joints
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Surface by surface
Cladding and façade panels
If the façade has a specified sealant, that is what we use, or one the system allows. Tell us what the building has when you get in touch.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Ask before painting over external sealant
- Fix overflowing gutters above sealed joints
- Don’t let climbing plants root in the sealant
- Show decorators and builders where the movement joints are
Avoid pressure-washing straight into the joints. High-pressure water can lift the edges and let water in behind.
Leave a failed movement joint and water keeps getting into the wall. Over time it can mean damp inside, stained render or frost-damaged brick.