Scottish Borders · Scotland
External Mastic in Westruther
External mastic for Westruther and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
- Joints where the bead has come unstuck
How we handle external mastic in Westruther
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we will confirm what’s needed to reach them safely. We work on render & cladding joints, façade panels and joints between brick and frames, and common reasons people get in touch are plants rooting in failed movement joints and movement joints filled with mortar instead of sealant.
Outside joints can only be sealed when they’re dry, so work in Westruther depends on the weather. Tell us how to reach each wall, gutter and roofline.
There’s a 12-month guarantee on every job, large or small.
- Where
- Westruther (TD3)
- Wider area
- Scottish Borders
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What affects the cost of external mastic
Your quote is based on your job. We take into account:
- Any mould that needs treating
- The product the joint needs
- The number and length of the joints
- Whether the work is at height
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
What we need to know
Before you ask for a quote, have a think about:
- A few photos by email, if you can
- If it’s domestic, commercial or a hotel
- What’s wrong with the joints now
- Any access issues, like height or stairs
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, send an email to info@mrmastic.co.uk.
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. In an older home around Westruther, 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.
What you get with us
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
- A sealant colour to suit the surroundings
- ARBOMaster approved applicator
Take a look at what affects the cost and what customers say.
What external mastic looks like in Westruther
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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
For an older house near a landmark such as Old Parish Church and Churchyard, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Westruther is about 12 miles north-east of Galashiels, in the Scottish Borders. We carry out external mastic for householders, landlords and businesses in Westruther. Our the Scottish Borders coverage runs to 89 places, Westruther among them. You can also see our page for Edinburgh, about 28 miles away.
Every address in TD3 is covered for external mastic, from the main roads to the quietest streets. Other places close to Westruther include Gordon (4 miles south), Greenlaw (5 miles south-east), Longformacus (6 miles north-east), Lauder (7 miles west) and Nether Blainslie (7 miles south-west). Larger places within reach include Galashiels (12 miles south-west), Kelso (11 miles south-east), Duns (10 miles east), Melrose (11 miles south-west), Langlee (12 miles south-west) and St Boswells (12 miles south).
Local landmarks in Westruther
Other landmarks nearby include Old Thirlestane Castle (4.5 miles west). Green spaces nearby include Gordon Moss and Twin Law.
What happens on the day
We bring everything the job needs with us. After a quick look at the joints together, we protect the area and start. It normally takes a few hours for a handful of joints, longer for a whole elevation. Around Westruther, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- 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.
How to prepare
- Keep pets and children clear of the area while we work
- Mention any leaks or damp you’ve noticed
- Clear items away from the joints we’re working on
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, send an email to info@mrmastic.co.uk.
Advice
Towns and villages near Westruther
Other services in Westruther
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Keep high-pressure jets off the joints
- Tell anyone working on the walls about the movement joints
- Keep water from gutters off the wall
- Do not let climbing plants root in the sealant
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
Common problems we fix in Westruther
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
The most common problems we see are:
- Joints pointed up with cement by mistake
- Panel joints letting water in
- Sealant that has lost its bond to the brick or render
- Cracked joints where brick meets render or frames
Around Westruther, as everywhere, external mastic is only as good as the preparation behind it.
What to look for in a quote
- Which colour the sealant will be
- How long the guarantee is
- Which sealant they’ll use, and why
- Whether they seal over old material or remove it
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Cracking across the wall rather than at a joint
- Adding movement joints to masonry that has none
- Loose or hollow render, which needs re-rendering
If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think before booking.
What we seal
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Façade panels
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Your questions about external mastic in Westruther
Is Westruther within the area you cover?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Can you do external mastic in Westruther?
Yes, Westruther is within the area we cover. Our work covers the whole 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 price.
Where are you based?
We work from Crawley. We cover Westruther and the rest of the Scottish Borders.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose and can lead to cracking. A flexible sealant is the right fill.
Do you work at height?
It depends on the building. Where joints can be reached safely, we will do them. Tell us about the building and we’ll confirm what access is needed.
Will the new joint stand out?
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.
How often do external joints need resealing?
That varies with the weather the wall faces, how much it moves and the sealant used. Treat it as a maintenance item and look at it yearly.