Shetland Islands · Scotland
External & façade joints in Scalloway, Shetland Islands
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Scalloway. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Movement joints with cracked, split or missing sealant
- Moss and dirt in joints with no sealant left
- Leaking joints around cladding and façade panels
External mastic in Scalloway
For buildings in Scalloway, we reseal external joints of all kinds, from brick movement joints to cladding panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. If you have rigid filler in a joint that should flex and panel joints letting water in, we can help, whatever the surface.
Outside joints can only be sealed when they’re dry, so work in Scalloway depends on the weather. Let us know about access to every wall and roofline.
Your job is guaranteed for a year, as with all our work.
- Location
- Scalloway (ZE1)
- Wider area
- Shetland Islands
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What the job involves on each surface
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. We reseal them with a sealant suited to the panel material.
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Also near Scalloway
More services for Scalloway
How to look after the new joints
A little care helps the new joints last. We recommend:
- Act on the first splits you see
- Fix overflowing gutters above sealed joints
- Avoid pressure-washing directly into sealant joints
- Make sure movement joints aren’t pointed over
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Once a joint cannot move, the wall finds another way, normally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
Outside joints around Scalloway
Scalloway 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. Plenty of Scottish homes have harled walls, and joints where harling meets other materials need a sealant that can grip and flex.
In the older streets around Methodist Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Scalloway is in the Shetland Islands. Homes, rented property, offices and hotels in Scalloway can book us for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Scalloway is one of 63 towns and villages in the Shetland Islands we cover.
Jobs for external mastic in ZE1 is quoted and booked the same way as anywhere else. That includes homes and businesses on Main Street, Craigpark Road and Meadowfield Road and the roads around them. Scalloway is on the B9074, so it’s easy for us to get to. We also cover the places around Scalloway: Gulberwick (2 miles east), Hamnavoe (3 miles south-west), Veensgarth (3 miles north-east), Sound (4 miles east) and Toogs (4 miles south-west). Scalloway is one of the larger places we cover in the Shetland Islands. Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
What’s near Scalloway
In Scalloway, that means homes and buildings near Fisherman's Arms, among other places. Other landmarks nearby include Castle Holm (4.9 miles north) and Gilbert Bain Hospital (4.3 miles east). For a walk, there’s Hill of Berry and Loch of Burwick.
The process
You don’t need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes a few hours for a handful of joints, longer for a whole elevation for a typical job. For a place like Scalloway, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
Getting a quote
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To get started, email us at info@mrmastic.co.uk.
Read more
Your questions about external mastic in Scalloway
Can you do external mastic in Scalloway?
Yes. We work across all of Scotland, and Scalloway is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Will you come out to Scalloway?
Yes. Scalloway 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. Just mention lanes, gates or anything else about the route when you book.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render so the joint blends in. Exterior sealants come in a good range of colours.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Where are you based?
We work from Crawley. Our applicators cover Scalloway, along with the rest of our area.
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
We work for landlords and agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Leave it or put it right?
Resealing a run of joints in one go is usually better than patching one at a time. Joints of the same age tend to fail together and it means sorting access once. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why Scalloway customers choose us
- Trusted Arbo and Everbuild sealants
- Anti-fungal sanitary silicone in wet areas
- Old sealant always removed completely
- Fully insured
Common problems we fix in Scalloway
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
People normally contact us after spotting one of these:
- Movement joints with cracked, split or missing sealant
- Plants rooting in failed movement joints
- Failed seals between different materials
- Hard, crazed mastic that has stopped moving
In and around Scalloway, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- What product goes in the joint
- How much experience the applicator has
- Which colour the sealant will be
- How long the guarantee is