Orkney Islands · Scotland
External & façade joints in Harray, Orkney Islands
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Harray. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Weathered mastic that no longer stretches
- Rigid filler in a joint that should flex
- Movement joints with cracked, split or missing sealant
What happens if it’s left?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. In an older home around Harray, damp from a failed joint can get into timber and plaster.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why Harray customers choose us
- You choose the colour before work begins
- White, clear, grey or another colour, product permitting
- ARBOMaster approved applicator
- Fully insured
Read our cost guide or our reviews.
How we handle external mastic in Harray
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, so once it splits or hardens, the joint stops working and water gets in. We work on joints between brick and frames, brickwork movement joints and copings & trims, and common reasons people get in touch are brick movement joints where the sealant has split and gaps where render, brick and frames meet.
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.
Each job carries a 12-month guarantee.
- Location
- Harray (KW17)
- Region
- Orkney Islands
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
External mastic in Harray: local notes
Harray is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. Work on the islands has to be planned around ferry crossings and the weather, so give us as much notice as you can.
Around Harray, as everywhere, external mastic is only as good as the preparation behind it.
Harray is about 9 miles north-west of Kirkwall, in the Orkney Islands. Wherever you are in the KW17 postcode area, our applicators can take on external mastic. Across the Orkney Islands, we cover 51 places, Harray among them.
Work in KW17 works the same way as everywhere else we cover. Other places close to Harray include Bimbister (1 mile south), Russland (1 mile west), Grimeston (2 miles south), Hourston (2 miles north-west) and Wasbister (3 miles south-west). 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 Harray
Other landmarks nearby include Corrigall Farm Museum (1.4 miles north). The countryside around Harray includes Kame of Corrigall and Brodgar RSPB Reserve.
How the visit works
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours to a few days, depending on the length of joint and the access from start to finish. In smaller Scottish places, parking is generally less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
- Keep pets and children clear of the area while we work
Getting a quote
Need a quote? Please email us at info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and give you a clear price before work begins.
Read more
What the job involves on each surface
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. A flexible sealant bridges the two.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
When it isn’t the sealant
We’ll always be straight with you, so here’s what new sealant won’t do:
- Cracks in the bricks or render themselves, away from the joints
- 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
If you’re not sure, just send an email to info@mrmastic.co.uk and we’ll give you a straight answer before you book.
Surfaces we seal
- Render & cladding joints
- Joints between brick and frames
- Concrete & block
- Copings & trims
- Brickwork movement joints
- Façade panels
What affects the quote in Harray
The price is agreed before any work begins. It takes into account:
- The type of sealant required
- The old material and how stubborn it is
- How many areas need sealing
- Whether there’s mould to deal with
We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
Before you ask for a quote, have a think about:
- A few pictures by email, if you can
- The type of property
- Where the property is
- Whether it has been sealed before
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved.
Questions from Harray
Do you cover smaller places like Harray?
Yes, Harray is covered. We work across all of Scotland, islands included, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you do external mastic in Harray?
Yes, Harray is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
Can you seal joints between two different materials?
Yes. Joints between dissimilar materials are a big part of external work. We use a flexible sealant suited to both surfaces, primed where needed.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Where are you based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done.
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
Also in Harray
Do you need external mastic in Harray?
Using the wrong sealant is another common reason. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, so it pulls away from the edges.
Any of these means the joints need attention:
- Brick movement joints where the sealant has split
- Failed seals between different materials
- Plants rooting in failed movement joints
- Weathered mastic that no longer stretches
If you live in an older home near Grimeston Congregational Chapel, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What to look for in a quote
- How the joint is cleaned and prepared
- Whether VAT is included
- Who turns up on the day
- Is the old sealant removed completely?