Na h-Eileanan Siar · Scotland
External & façade joints in Marybank, Na h-Eileanan Siar
Sealing brickwork movement joints, render, cladding and façade joints in Marybank, with a 12-month guarantee on every job. Ask us for a quote.
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Panel joints letting water in
External mastic in Marybank
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. Common call-outs are for moss and dirt in joints with no sealant left and cracked joints where brick meets render or frames, across concrete & block, joints between brick and frames and brickwork movement joints.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Outside joints on exposed walls work hard.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Marybank (HS2, HS1)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How we quote for external mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- The amount of work
- Working hours on commercial sites
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
When you call or email, it’s useful to know:
- Whether it’s a home or a business
- Roughly how big the job is
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
What we are called out for in Marybank
Weeds, moss and debris in a joint are a sign the sealant has gone. Dirt and roots then trap moisture in the joint and speed up the damage.
The most common problems we see are:
- Joints where the bead has come unstuck
- Brick movement joints where the sealant has split
- Damp patches traced to an open external joint
- Weeds or debris growing in open joints
Around Marybank, as everywhere, external mastic is only as good as the preparation behind it.
What to look for in a quote
- Who does the work, and how experienced they are
- What happens if the job turns out different
- When the joint can take water or movement
- What the quote includes, VAT included or not
What sealant work cannot fix
In fairness, some problems need a different trade:
- Movement that is more than a sealant joint can take
- Cracking across the wall rather than at a joint
- Damp that isn’t coming from the joint
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think.
Where we work in Marybank
- Brickwork movement joints
- Copings & trims
- Render & cladding joints
- Façade panels
- Joints between brick and frames
- Concrete & block
Should I try it myself first?
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.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Marybank: your questions answered
Will you come out to Marybank?
Yes. Marybank is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Can you do external mastic in Marybank?
Yes, Marybank is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear price.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
What does external mastic cost?
We don’t publish prices, because the cost 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.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used before we leave.
Do you work at height?
That depends on how high the joints are and the ground below. Ground-floor joints are simple; for higher ones, send details and we will confirm the access.
When will the joints need doing again?
It varies from wall to wall: joints on exposed walls or with a lot of movement age sooner. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and you will get one quote.
How it works
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a handful of joints, longer for a whole elevation, including the tidy-up. Outdoor work around Marybank depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- 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.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Move anything stored near the joints
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved and send you a clear quote.
Read more
Leave it or put it right?
The longer a joint stays open, the more water the wall takes in. In cold weather, frost can damage wet brick and render, so the problem grows beyond the joint itself. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
What it costs depends on how much there is to do, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
Why Marybank clients choose us
- Sealant colour chosen to suit
- Trusted Arbo and Everbuild sealants
- One-year guarantee on every job
- Fully insured
See our cost guide and what customers say.
What else we do in Marybank
For landlords and businesses
Letting agents and landlords in Marybank can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured.
What external mastic looks like in Marybank
Marybank 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. Work on the islands has to be planned around ferry crossings and the weather, so give us as much notice as you can.
For jobs in and around Marybank, choosing the right material for each joint is as important as a tidy finish.
Marybank is about 1 mile west of Stornoway, in Na h-Eileanan Siar. Our applicators cover external mastic for homes and businesses in Marybank and the surrounding area. Marybank is one of 87 towns and villages in Na h-Eileanan Siar we cover for external mastic.
We cover every part of HS2 and HS1 for external mastic. Whether your property is on Bennadrove Road, Airidhean Ur and Macgregor Park or anywhere close by, our applicators can take on the job. Neighbouring places we cover for external mastic include Laxdale (1 mile north-east), Stornoway (1 mile east), Newmarket (1 mile north-east), Plasterfield (2 miles east) and Sandwick (2 miles east). Island and remote addresses take a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Local landmarks in Marybank
A little further out are Museum Nan Eilean (1 mile south-east) and Western Isles Hospital (1.3 miles east). For a walk, there’s Loch Àirigh na Lic and Ben Barvas.