Shetland Islands · Scotland
External & façade joints in Boddam, Shetland Islands
Sealing brickwork movement joints, render, cladding and façade joints in Boddam, with a one-year guarantee on every job. Ask us for a quote.
- Failed seals between different materials
- Movement joints with cracked, split or missing sealant
- Rain getting behind render or cladding at a joint
External mastic in Boddam, done properly
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it and we use one wherever it does. We work on render & cladding joints, façade panels and concrete & block, and the jobs we see most are sealant that has lost its bond to the brick or render and movement joints filled with mortar instead of sealant.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Outside joints on exposed walls work hard, so they need a sealant that moves with the building.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Boddam (ZE2)
- Region
- Shetland Islands
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How the visit works
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes anything from a few hours to several days, depending on the building. Outdoor work around Boddam depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- 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.
Before we arrive
- Mention any leaks or damp you’ve noticed
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
Need a quote? Please send an email to info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
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How the job changes by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. Both surfaces are cleaned and primed as the product requires.
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Why act early in Boddam
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The movement then cracks the brickwork or render nearby. A flexible sealant over backing rod is what the joint needs. In a place like Boddam, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, send an email to info@mrmastic.co.uk and we’ll give you an honest view and a quote.
What you get with us
- Old sealant always removed completely
- Over 20 years’ experience
- One-year guarantee on every job
- Experience in homes, commercial sites and hotels
Take a look at our cost guide and what customers say.
Your questions about external mastic in Boddam
Will you come out to Boddam?
Yes, Boddam is covered. We work across all of Scotland, islands included, from towns to the smallest places. Longer journeys are simply planned in advance.
Does living near the coast affect external mastic in Boddam?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
How often do external joints need resealing?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How much does external mastic cost in Boddam?
Every job is different, so each one gets its own quote. For a quick quote, drop us a line at info@mrmastic.co.uk with a short description of the job.
Can I add another job to the visit?
Yes. Just list everything you need.
Will the new joint stand out?
We aim for a joint that suits the wall rather than one that jumps out. Colour is agreed with you before we begin, matched as closely as the range allows.
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.
When something else is needed
Before booking, it’s worth knowing the limits too:
- Movement that’s more than a sealant joint can take
- Rising or penetrating damp from elsewhere in the wall
- Cutting new joints into brickwork, which is building work rather than sealant work
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
Joints and surfaces we work on
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Brickwork movement joints
- Façade panels
- Concrete & block
What affects the quote in Boddam
Jobs vary more than people expect. What affects the quote:
- The product the joint needs
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
- The number and length of the joints
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
Asking for a quote
Photos help, but a description is a good start. Try to tell us:
- What’s wrong with the joints now
- The rough size of the job
- The type of property
- Where the property is
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Do you need external mastic in Boddam?
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
Signs it’s time to call us include:
- Gaps where render, brick and frames meet
- Movement joints with cracked, split or missing sealant
- Sealant pulling away from one side of the joint
- Water getting into walls through failed joints
Homes close to Dunrossness Parish Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
What to look for in a quote
- Whether all the old sealant comes out first
- Whether they’re fully insured
- How the joint is cleaned and prepared
- How much experience the applicator has
Outside joints around Boddam
Boddam 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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
In and around Boddam, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Boddam is in the Shetland Islands. Every kind of property in Boddam is covered for external mastic, old or new, large or small. Every job comes with our one-year guarantee. Our area takes in 63 places across the Shetland Islands, large and small.
Here we cover the ZE2 postcode area for external mastic. We cover properties on Millpund, Turniebrae and Hillock. We also cover the places around Boddam: South Scousburgh (1 mile north-west), Hestingott (2 miles south), Exnaboe (2 miles south), Toab (2 miles south) and Scatness (3 miles south). As one of the bigger places in the Shetland Islands, Boddam has homes, rented property and businesses of every kind. Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Near you in Boddam
Other landmarks nearby include Shetland Crofthouse Museum (0.6 miles south-east). For a walk, there’s Sumburgh Head RSPB reserve and Loch of Millpund.