Orkney Islands · Scotland
External & façade joints in Finstown, Orkney Islands
External mastic for Finstown, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Failed sealant between panels on a façade
- Water getting into walls through failed joints
- Joints where the bead has come unstuck
External mastic in Finstown, done properly
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. We work on concrete & block, render & cladding joints and brickwork movement joints, and the jobs we see most are hard, crazed mastic that has stopped moving and sealant that has lost its bond to the brick or render.
In and around a place like Finstown, many buildings face open ground and take the full weather. Outside joints on exposed walls work hard.
The work is covered for a year after we finish. If there’s a problem with it, please send an email to info@mrmastic.co.uk.
- Place
- Finstown (KW17)
- Wider area
- Orkney Islands
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Landlords, agents and businesses in Finstown
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
FAQs for Finstown
Is external mastic in a coastal place like Finstown 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.
Do you cover Finstown for external mastic?
Yes, Finstown is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and tell us what needs doing, and we will send you a clear quote.
When is the sealant fully cured?
It depends on the product and the conditions. We tell you how long to leave it before we go.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
I rent my home. Can I book you?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Do you seal joints where cladding meets other materials?
Yes. Materials like render, brick, metal and uPVC all move differently, so the joint between them must be flexible. We choose one that suits both surfaces.
Do you need external mastic in Finstown?
If plants are growing out of a joint, the sealant has generally failed or was never there. Roots and dirt hold water against the wall and speed up the damage.
Signs it’s time to call us include:
- Damp patches traced to an open external joint
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
- Plants rooting in failed movement joints
For jobs in and around Finstown, choosing the right material for each joint is as important as a tidy finish.
Before you book anyone
- What happens if they find a problem under the old sealant
- Whether you can choose the colour
- Who does the work, and how experienced they are
- What product goes in the joint
Nearby places to Finstown
What else we do in Finstown
The process
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Finstown may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
- Try not to wet indoor joints just before the visit
Ask for a quote
Need a quote? Please email us at info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Advice
External mastic in Finstown: local notes
Finstown 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. Island jobs need planning around ferries and the weather, so the more notice, the better.
Around Finstown, as everywhere, external mastic is only as good as the preparation behind it.
Finstown is about 6 miles west of Kirkwall, in the Orkney Islands. For external mastic in and around Finstown, please drop us a line at info@mrmastic.co.uk for a quick quote. We cover the Orkney Islands from our Crawley base, Finstown included. Finstown is one of 51 places in the Orkney Islands where we work.
All of KW17 is covered for external mastic, from the main roads to the quietest streets. We cover properties on Grimond Square, Fletts Corner and Seafield. Main roads around Finstown include the A965. Other places close to Finstown include Heddle (1 mile south-west), Grimbister (1 mile south-east), Germiston (2 miles south-west), Bimbister (3 miles north-west) and Grimeston (3 miles west). Finstown is one of the larger places we cover in the Orkney Islands. Island and remote addresses take a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
Local landmarks in Finstown
Nearby you’ll also find Balfour Hospital (5.7 miles east). The countryside around Finstown includes Loch of Wasdale and Hill of Heddle.
Leave it or put it right?
Pointing a movement joint with mortar might seem a neat fix, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Around Finstown, water from a failed joint in an older stone home can soak into timber and plaster.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why Finstown customers choose us
- Colour agreed with you before we start
- Colour picked to suit the job
- Full insurance on every job
- Anti-fungal silicone where joints get wet
Take a look at our cost guide and customer reviews.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Movement that is more than a sealant joint can take
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Adding movement joints to masonry that has none
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
Joints and surfaces we work on
- Concrete & block
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Keep movement joints as flexible joints, not mortar
- Keep water from gutters off the wall
- Get split or bare joints resealed while the damage is small
- Look over the joints every year, ideally after winter
Have a quick look at the joints each spring. Splits, gaps at the edges or plants in the joint are early warning signs.
Small splits are the time to act. At that stage it’s a simple cut out and reseal before water has had years to get in.