Shetland Islands · Scotland
Bigton External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for Bigton, backed by a one-year guarantee. Ask us for a quote.
- Rain getting behind render or cladding at a joint
- Sealant pulling away from one side of the joint
- Weathered mastic that no longer stretches
Signs you need external mastic in Bigton
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
These are the problems we’re asked about most:
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
- Weeds or debris growing in open joints
- Hard, crazed mastic that has stopped moving
If you live in an older home near St Ninian's Church And Gatepiers, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Before booking anyone
- Whether they’re fully insured
- Whether you can choose the colour
- What the quote includes, VAT included or not
- When the joint can take water or movement
How we handle external mastic in Bigton
Low-level joints can generally be done from the ground. For joints higher up, give us some details of the building and we will confirm what’s needed to reach them safely. If you have panel joints letting water in and brick movement joints where the sealant has split, we can help.
External sealant needs dry surfaces, so outdoor work around Bigton is planned around the weather. Tell us how to reach each wall, gutter and roofline.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Where
- Bigton (ZE2)
- Wider area
- Shetland Islands
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
External mastic in Bigton: local notes
Bigton is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Around Bigton, as everywhere, external mastic is only as good as the preparation behind it.
Bigton is in the Shetland Islands. Across the ZE2 area, we cover external mastic for homes and businesses. Across the Shetland Islands, we cover 63 places, and Bigton is one of them.
Every address in ZE2 is covered for external mastic, from the main roads to the quietest streets. Neighbouring places we cover for external mastic include Levenwick (2 miles east), Hoswick (3 miles north-east), South Scousburgh (3 miles south), Sandwick (3 miles north-east) and Boddam (4 miles south). Larger places within reach include Lerwick (13 miles north-east), Sound (13 miles north-east) and Scalloway (11 miles north). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
What’s near Bigton
The countryside around Bigton includes Loch of Vatsetter.
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
The biggest DIY mistake is sealing over old sealant. 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.
Surface by surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. We cut out the old sealant and reseal with a product suited to both surfaces.
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
Looking after it afterwards
How long the joints last depends on use and care. We suggest:
- Show decorators and builders where the movement joints are
- Keep high-pressure jets off the joints
- Fix overflowing gutters above sealed joints
- Make sure movement joints aren’t pointed over
Follow the cure time we give you before the joint is knocked or disturbed. Most exterior sealants skin fast but take longer to cure right through.
Once a joint cannot move, the wall finds another way, usually as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
FAQs for Bigton
Is external mastic in a coastal place like Bigton any different?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are normally the first to need attention.
Do you cover smaller places like Bigton?
Yes. Bigton 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.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
How much does external mastic cost in Bigton?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Can you match the colour of my brickwork?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin from the range available.
When will the joints need doing again?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away, and reseal at that point.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Why act early in Bigton
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. Too stiff a sealant can pull at the edges and break them. Around Bigton, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Fully insured
- Rated 4.9 stars on Google
- Quality sealants from Arbo and Everbuild
- You choose the colour before work begins
Take a look at our cost guide or our reviews.
What affects the cost of external mastic
Your quote is based on your job. We look at:
- Which sealant suits the joint
- The number of rooms or windows
- The number and length of the joints
- The old material and how stubborn it is
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please email us at info@mrmastic.co.uk and we will talk you through it.
Asking for a quote
To make quoting easier, please include:
- If someone has resealed it before
- The rough size of the job
- The type of property
- Any access issues, like height or stairs
Want a quote for external mastic? Please drop us a line at info@mrmastic.co.uk with a few details. We will explain what we’d do and give you a clear price before any work starts.
What else we do in Bigton
What we do, step by step
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take anything from a few hours to several days, depending on the building. Around Bigton, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Clear items away from the joints we’re working on
- Where the joints are inside, avoid wetting them before we arrive
- Mention any parking rules near the property
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, drop us a line at info@mrmastic.co.uk.