Orkney Islands · Scotland
External Mastic in Kirbister
Professional external mastic in and around Kirbister, with old sealant always removed completely and a 12-month guarantee.
- Weeds or debris growing in open joints
- Cracked joints where brick meets render or frames
- Brick movement joints where the sealant has split
Kirbister questions
Can you do external mastic in Kirbister?
Yes. Our work covers the whole of Scotland, and Kirbister is part of that. You can drop us a line at info@mrmastic.co.uk and tell us what needs doing.
Do you cover smaller places like Kirbister?
Yes, Kirbister is covered. We work across all of Scotland, islands included, and smaller places are part of that. Longer journeys are simply planned in advance.
Which products do you use?
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.
Are you fully insured?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.
How do I get a quote for external mastic in Kirbister?
It depends on the job, so we quote each one individually. To get one, drop us a line at info@mrmastic.co.uk with a short description of the job.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints.
External mastic for homes and businesses in Kirbister
On houses, flats and commercial buildings across Kirbister, we reseal joints in brickwork, render, cladding and façade panels. The preparation is the same whatever the wall: clean, sound faces and a controlled depth. We work on façade panels, joints between brick and frames and concrete & block, and common reasons people get in touch are joints where the bead has come unstuck and failed seals between different materials.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. On newer homes, the movement joints and roofline trims are what need watching.
You get a 12-month guarantee, the same in Kirbister as everywhere else we work.
- Place
- Kirbister (KW17)
- Region
- Orkney Islands
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why act early in Kirbister
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. Too stiff a sealant can pull at the edges and break them. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
Why choose Mr Mastic in Kirbister
- A choice of colours where the product allows
- 20+ years of sealant experience
- An ARBOMaster approved applicator
- Full insurance on every job
Take a look at what affects the cost and what customers say.
Also in Kirbister
For landlords and businesses
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we are fully insured.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
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 have agreed what’s being done, we protect the area and start. It normally takes a few hours to a few days, depending on the length of joint and the access. In smaller Scottish places, parking is normally less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about parking restrictions
- Clear items away from the joints we’re working on
Get a quote
Asking for a quote is easy: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand.
Related advice
External mastic in Kirbister: local notes
Kirbister 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. Both are hard on movement joints and outside wall joints, which can dry out and crack sooner where a building faces the weather. On the islands, wind and salt spray are hard on outside sealant.
For jobs in and around Kirbister, choosing the right material for each joint is as important as a tidy finish.
Kirbister is about 6 miles south-west of Kirkwall, in the Orkney Islands. Homes, rented property, offices and hotels in Kirbister can book us for external mastic, old or new, large or small. The work is guaranteed for a year. Across the Orkney Islands, we cover 51 places, Kirbister among them.
Postcode districts we cover here for external mastic: KW17. Kirbister is on the A964, which makes it straightforward to reach with everything needed for external mastic. We also cover Orphir (2 miles south-west), Midland (3 miles south-west), Germiston (3 miles north-west), Greenigoe (3 miles east) and Clestrain (3 miles west). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Local landmarks in Kirbister
Well-known places in the area include Balfour Hospital (5.4 miles east). Not far away are Ward Hill and Loch of Kirbister.
Different surfaces, different methods
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. They’re resealed over backing rod with a low-modulus sealant.
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Act on the first splits you see
- Keep movement joints as flexible joints, not mortar
- Walk round the building once a year and look at the joints
- Check the sealant is paintable before painting near it
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.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
What affects the cost of external mastic
We quote each job individually. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- Which sealant suits the joint
- How much there is to do
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What we need to know
To help us quote quickly, please include:
- A few pictures by email, if you can
- Where the job is, and your postcode
- If someone has resealed it before
- Any access issues, like height or stairs
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Signs you need external mastic in Kirbister
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
These are the problems we’re asked about most:
- Movement joints with cracked, split or missing sealant
- Panel joints letting water in
- Rain getting behind render or cladding at a joint
- Old sealant gone brittle and cracked
Around Kirbister, as everywhere, external mastic is only as good as the preparation behind it.
What to look for in a quote
- Whether they’re fully insured
- Who turns up on the day
- The length of the guarantee
- Whether you can choose the colour