Highland · Scotland
Scarfskerry External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Scarfskerry, with a one-year guarantee on every job. Call for a quick quote.
- Damp patches traced to an open external joint
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
External mastic in Scarfskerry
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement where mortar or filler would crack. Common call-outs are for rain getting behind render or cladding at a joint and sealant that has lost its bond to the brick or render, on façade panels, copings & trims and brickwork movement joints.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Gutter joints and wall joints take a battering.
Big or small, you get the same one-year guarantee.
- Where
- Scarfskerry (KW14)
- Wider area
- Highland
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What external mastic looks like in Scarfskerry
Scarfskerry is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Harled (roughcast) walls are common in Scotland, and where harling meets frames, pipes and other materials, the joint needs a flexible sealant that grips a rough surface.
In and around Scarfskerry, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Scarfskerry is about 10 miles east of Thurso, in Highland. Homes, rented property, offices and hotels in Scarfskerry is covered for external mastic. Every job comes with our one-year guarantee. Scarfskerry is one of 253 places in Highland we cover.
Work in KW14 is quoted and booked the same way as anywhere else. We also cover Rattar (1 mile south-east), Dunnet (3 miles south-west), Brough (3 miles west), Castletown (5 miles south-west) and Canisbay (6 miles east). Island and remote addresses take a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Landmarks near Scarfskerry
A little further out are Castle of Mey (1.9 miles east) and Westside Croft (3.1 miles south-west). For a walk, there’s Loch of Mey.
More services for Scarfskerry
What we are called out for in Scarfskerry
UV, rain and frost all age exterior sealant. Over the years it hardens, cracks on the surface and loses its give, so the next time the wall moves, it splits or pulls away.
Signs it’s time to call us include:
- Sealant pulling away from one side of the joint
- Hard, crazed mastic that has stopped moving
- Movement joints filled with mortar instead of sealant
- Water getting into walls through failed joints
Historic houses such as Castle of Mey, about 1.9 miles east, show how far back building around Scarfskerry goes.
Comparing quotes
- Which sealant they’ll use, and why
- The length of the guarantee
- How long to leave it before use
- How the joint is cleaned and prepared
Can I do it myself?
A DIY attempt does not rule out a professional job. We cut it out and start again.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Landlords, agents and businesses in Scarfskerry
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
We also work for property managers and facilities teams in Scarfskerry and across Highland. Several sites can be quoted together, and we’re fully insured for the work.
What affects the cost of external mastic
The quote reflects the job in front of us. We look at:
- Any working-time requirements on site
- How many areas need sealing
- The product the joint needs
- The size of the job
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Roughly how big the job is
- A few photos by email, if you can
- If someone has resealed it before
- How we’d reach the joints
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, drop us a line at info@mrmastic.co.uk.
What we do, step by step
We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours to a few days, depending on the length of joint and the access. Somewhere like Scarfskerry may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved.
Advice
Scarfskerry questions
Is Scarfskerry within the area you cover?
Yes. Scarfskerry is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Does the coastal weather in Scarfskerry affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are usually the first to need attention.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we’re using and why.
What is backing rod for?
That is backing rod, a closed-cell foam. It stops the sealant going in too deep and bonding to three sides, which would stop it stretching.
Where do you work from?
We work from Crawley. Our applicators cover Scarfskerry, along with the rest of our area.
Are you fully insured?
Yes. Mr Mastic is fully insured.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. We’ll talk through colour options before any work starts from the range available.
What the job involves on each surface
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
Cladding and façade panels
If the façade has a specified sealant, that’s what we use, or one the system allows. Tell us what the building has when you get in touch.
When it is not the sealant
We will not take on work that won’t last, so these are the limits:
- Cracks in the bricks or render themselves, away from the joints
- Failed render or damaged cladding panels
- 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 you book.
Joints and surfaces we work on
- Brickwork movement joints
- Copings & trims
- Façade panels
- Render & cladding joints
- Concrete & block
- Joints between brick and frames