Shetland Islands · Scotland
External & façade joints in Cunningsburgh, Shetland Islands
We cover Cunningsburgh for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Joints where the bead has come unstuck
- Hard, crazed mastic that has stopped moving
- Failed sealant between panels on a façade
How we handle external mastic in Cunningsburgh
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. We work on joints between brick and frames, concrete & block and façade panels, and the jobs we see most are sealant pulling away from one side of the joint and movement joints with cracked, split or missing sealant.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. On newer homes, the movement joints and roofline trims are what need watching.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Cunningsburgh (ZE2)
- Wider area
- Shetland Islands
- Cover
- One year on every job
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What the job involves on each surface
Cladding and façade panels
Panels heat up and cool down quickly, so the joint sealant has to cope with frequent movement. The sealant is chosen with that in mind.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind.
Looking after it afterwards
After the cure time, these simple habits help:
- Look over the joints every year, ideally after winter
- Ask before painting over external sealant
- Have failed joints looked at early
- Keep high-pressure jets off the joints
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal.
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
The process
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take anything from a few hours to several days, depending on the building. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints.
- 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.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Clear items away from the joints we are working on
- Tell us about any water getting in
- Let us know about parking restrictions
Get a quote
For external mastic in Cunningsburgh, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and you will get a clear quote before work begins.
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Questions from Cunningsburgh
Will you come out to Cunningsburgh?
Yes, we do. We work across all of Scotland, islands included, and smaller places are part of that. Longer journeys are simply planned in advance.
Is external mastic in a coastal place like Cunningsburgh any different?
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.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
How much does external mastic cost in Cunningsburgh?
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.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Can you seal over the old sealant?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Leave it or put it right?
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. A stiffer product can damage the joint edge as it fails. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why book with us
- Approved under the ARBOMaster scheme
- 4.9 on Google from 180+ five-star reviews
- Old sealant always removed completely
- You choose the colour before work begins
Take a look at our cost guide or what customers say.
Quotes for external mastic in Cunningsburgh
Call for a quick quote. What matters most is:
- How many areas need sealing
- Whether the work is at height
- The product the joint needs
- The size of the job
Leaving a failed joint usually makes the job bigger, not smaller. If you’re not sure whether it needs doing, email us at info@mrmastic.co.uk and we will give you an honest view and a quote.
Helping us quote
To make quoting easier, please include:
- Photos by email, if that’s easy
- What’s wrong with the joints now
- Where the job is, and your postcode
- If someone has resealed it before
For a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before we start.
Nearby places to Cunningsburgh
More services for Cunningsburgh
Common problems we fix in Cunningsburgh
Joints sealed without backing rod, or far too deep, rarely last. Sealant bonded to three sides has nowhere to go and tears as soon as the joint widens.
The most common problems we see are:
- Gaps where render, brick and frames meet
- Water getting into walls through failed joints
- Brick movement joints where the sealant has split
- Rigid filler in a joint that should flex
Whether the job is in Cunningsburgh itself or nearby, the right material for each joint matters as much as a neat finish.
Questions to ask before you book
- How much experience the applicator has
- When the joint can take water or movement
- Whether the sealant suits the joint
- What preparation is included
Walls and rooflines in Cunningsburgh
Cunningsburgh 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. Island jobs need planning around ferries and the weather, so give us as much notice as you can.
Around Cunningsburgh, as everywhere, external mastic is only as good as the preparation behind it.
Cunningsburgh is in the Shetland Islands. Jobs in Cunningsburgh get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 63 places in the Shetland Islands are on our list.
Every address in ZE2 is within our area for external mastic, from the main roads to the quietest streets. If you need external mastic at a property on St Clair Road, Laxdale Road and Pundsta Place or anywhere close by, our applicators can take on the job. Other places close to Cunningsburgh include Bremirehoull (1 mile south), Aithsetter (1 mile east), Mail (1 mile south), Sandwick (4 miles south) and Hoswick (4 miles south). We also work in nearby towns such as Lerwick (7 miles north), Sound (7 miles north) and Scalloway (6 miles north). Cunningsburgh is among the bigger towns we cover in the Shetland Islands. Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Landmarks near Cunningsburgh
Green spaces nearby include Loch of Fladdabister.