Shetland Islands · Scotland
Heogan External Mastic
Problem with your movement joints in Heogan? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Hard, crazed mastic that has stopped moving
- Failed seals between different materials
- Rain getting behind render or cladding at a joint
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
External mastic in Heogan, done properly
On houses, flats and commercial buildings across Heogan, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean joint faces and the right depth. We work on concrete & block, render & cladding joints and façade panels, and the jobs we see most are sealant that has lost its bond to the brick or render and panel joints letting water in.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.
You are covered for a year from the day we finish. If anything is not right with it, drop us a line at info@mrmastic.co.uk.
- Place
- Heogan (ZE2)
- Region
- Shetland Islands
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Heogan buildings and the weather
Heogan is close to 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. Work on the islands has to be planned around ferry crossings and the weather, so the more notice, the better.
If you look after a building such as Anderson High School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Heogan is in the Shetland Islands. If you need external mastic in Heogan, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We cover the Shetland Islands from our Crawley base, Heogan included. We cover 63 towns and villages across the Shetland Islands, from the larger towns to small villages.
Here we cover the ZE2 postcode area for external mastic. Other places close to Heogan include Gremista (1 mile west), Gunnista (1 mile east), Lerwick (1 mile south-west), Sound (2 miles south-west) and Grindiscol (2 miles south-east). If you are somewhere remote, the job takes a little more planning, so let us know when you get in touch.
Landmarks near Heogan
Locally, jobs take us to homes and businesses close to Gilbertson Park, among other places. Other landmarks nearby include Shetland Textile Museum (0.9 miles west) and Montfield Hospital (1.3 miles south). For a walk, there’s Loch of White Ayre and Setter Hill.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Fix overflowing gutters above sealed joints
- Have failed joints looked at early
- Tell anyone working on the walls about the movement joints
- Ask before painting over external sealant
Make sure anyone working on the wall later knows where the movement joints are. They must stay as flexible joints, never rendered or pointed over.
Small splits are the time to act. At that stage it’s a simple cut out and reseal before water has had years to get in.
When it isn’t the sealant
Sealant is not the answer to every problem, and we will tell you before any work starts. Sealant won’t put right:
- Damp that isn’t coming from the joint
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before you book.
Joints and surfaces we work on
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Render & cladding joints
FAQs for Heogan
Does the coastal weather in Heogan affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do you cover smaller places like Heogan?
Yes, Heogan is covered. Our work covers the whole of Scotland, islands included, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
How often do external joints need resealing?
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. Every job carries our 12-month guarantee.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
What’s an expansion joint in brickwork?
Walls move with heat, cold and moisture, and planned joints take up that movement. It’s closed with backing rod and a flexible sealant.
Do you guarantee your work?
Yes. Each job is guaranteed for twelve months, large or small.
How long does external mastic take?
Typically it takes a few hours to a few days, depending on the length of joint and the access. Bigger jobs take longer, and we will say how long yours will take.
Also in Heogan
Signs you need external mastic in Heogan
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, so it pulls away from the edges.
Most people get in touch after spotting something like this:
- Failed seals between different materials
- Rigid filler in a joint that should flex
- Failed sealant between panels on a façade
- Plants rooting in failed movement joints
If you live in an older home near St Margaret's Roman Catholic Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before you book
- What happens if they find a problem under the old sealant
- How the surfaces are prepared before sealing
- What guarantee comes with the work
- How long to leave it before use
Landlords, agents and businesses in Heogan
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Landlords and letting agents in Heogan can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
What affects the quote in Heogan
We quote each job individually. This is what makes a difference:
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
- The number of rooms or windows
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
- Any previous sealing or DIY work
- Where the property is
If you are in Heogan and need external mastic, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before any work starts.
The process
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
How to get a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.