Shetland Islands · Scotland
External & façade joints in Urafirth, Shetland Islands
External mastic across Urafirth and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Failed seals between different materials
- Leaking joints around cladding and façade panels
- Movement joints with cracked, split or missing sealant
How it works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours to a few days, depending on the length of joint and the access. Around Urafirth, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Where the joints are inside, avoid wetting them before we arrive
- Keep children and pets away from the work area
Ask for a quote
Want a quote for external mastic? Please send an email to info@mrmastic.co.uk with a few details. We will explain what we’d do and give you a clear quote before work begins.
Related advice
External mastic in Urafirth
Short cuts in external joints show up within a season or two. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We take the old material out and do it properly. If you have joints where the bead has come unstuck and plants rooting in failed movement joints, we can help, on concrete & block, brickwork movement joints and joints between brick and frames alike.
Stone walls need a stone-friendly sealant, as acetoxy products can attack some stone. Newer houses need their movement joints and roofline trims kept sound.
Every job is covered by our 12-month guarantee, wherever you are in the Shetland Islands.
- Where
- Urafirth (ZE2)
- Wider area
- Shetland Islands
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What external mastic looks like in Urafirth
Urafirth is close to 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. Plenty of Scottish homes have harled walls, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
Whether the job is in Urafirth itself or nearby, the right material for each joint matters as much as a neat finish. Around Urafirth, as everywhere, external mastic is only as good as the preparation behind it.
Urafirth is in the Shetland Islands. Whether you’re in the middle of Urafirth or further out, external mastic is available for homes and businesses alike. 63 places in the Shetland Islands are on our list.
We work across the ZE2 postcode area for external mastic and the streets around it. Other places close to Urafirth include Hillswick (1 mile south-west), Hogaland (3 miles east), Braehoulland (4 miles west), Ollaberry (4 miles east) and Sullom (5 miles south-east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Urafirth
The countryside around Urafirth includes The Wadill.
Landlord and commercial work in Urafirth
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Common questions in Urafirth
Can you do external mastic in Urafirth?
Yes, Urafirth is within the area we cover. We work across all of Scotland. You can email us at info@mrmastic.co.uk and tell us what needs doing.
Is external mastic in a coastal place like Urafirth any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Where is Mr Mastic based?
We work from Crawley. We cover Urafirth and the rest of the Shetland Islands, along with the rest of our area.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Are you fully insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Can you seal joints between render and window frames?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. The sealant is matched to both sides.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.
What does external mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Should I try it myself first?
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.
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Movement that is more than a sealant joint can take
- Walls that need new movement joints cut into them
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly before booking.
What we seal
- Render & cladding joints
- Façade panels
- Concrete & block
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
Looking after it afterwards
To keep the joints looking good and working properly:
- Look over the joints every year, ideally after winter
- Keep movement joints as flexible joints, not mortar
- Keep high-pressure jets off the joints
- Deal with leaking gutters that soak the joints below
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Small splits are the time to act. At that stage it’s a simple cut out and reseal.
What affects the cost of external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Any mould that needs treating
- Whether the work is at height
- The size of the job
- How many rooms, windows or areas are involved
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and give you a clear price before work begins.
Helping us quote
When you call or email, it’s useful to know:
- If someone has resealed it before
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
- The rough size of the job
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
How the job changes by surface
Render joints
Render has movement joints and stop beads that need sealing. We reseal them with a flexible exterior sealant that suits the render colour.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.