Scottish Borders · Scotland
External Mastic in Caddonfoot
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Caddonfoot and across the Scottish Borders. Fully insured, ARBOMaster approved and guaranteed for a year.
- Damp patches traced to an open external joint
- Rigid filler in a joint that should flex
- Sealant pulling away from one side of the joint
External mastic in Caddonfoot, done properly
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the joint does not stand out. Typical jobs include failed seals between different materials and sealant pulling away from one side of the joint, on façade panels, render & cladding joints and joints between brick and frames.
In and around a place like Caddonfoot, many buildings face open ground and take the full weather. Outside joints on exposed walls work hard, so they need a sealant that moves with the building.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Caddonfoot (TD1)
- Region
- Scottish Borders
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Surface by surface
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 coloured to suit the wall.
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. We size the backing rod to the gap and keep the sealant to the right depth.
Your questions about external mastic in Caddonfoot
Can you do external mastic in Caddonfoot?
Yes, Caddonfoot is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Do you cover smaller places like Caddonfoot?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
How long does external mastic last?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly.
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.
Is it OK to seal over old sealant?
No, it will not last. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
When to call us in Caddonfoot
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. All of that ends up in the joint sealant.
People normally contact us after spotting something like this:
- Leaking joints around cladding and façade panels
- Weathered mastic that no longer stretches
- Joints where the bead has come unstuck
- Gaps where render, brick and frames meet
Historic houses such as Peel House, about 1 mile west, show how far back building around Caddonfoot goes, and older homes nearby need a sealant that suits their walls.
Comparing quotes
- Which sealant they’ll use, and why
- How the colour is chosen
- Who turns up on the day
- How the surfaces are prepared before sealing
What affects the cost of external mastic
You will get a clear quote before any work starts. It takes into account:
- When we can work, for business premises
- The type of sealant required
- Whether there’s mould to deal with
- The number and length of the joints
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will go through it with you.
What we need to know
You do not need to know the technical terms. It helps if you can tell us:
- A few pictures by email, if you can
- Where the property is
- How we’d reach the joints
- What’s wrong with the joints now
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Why deal with it now?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. Around Caddonfoot, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
Why book with us
- Over 20 years’ experience
- Approved under the ARBOMaster scheme
- We leave the area clean and tidy
- Any old sealant cut out fully, not covered over
Take a look at how sealant jobs are priced or our reviews.
Places near Caddonfoot
Other services in Caddonfoot
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Wash walls gently around the sealant
- Tell anyone working on the walls about the movement joints
- Get split or bare joints resealed while the damage is small
- Check external joints each spring
Keep the joints clear of soil, plants and climbing growth. Anything that holds water against the joint wears it out sooner.
Once a joint can’t move, the wall finds another way, often as cracks near the joint. Catch it early and you reduce the risk.
External mastic in Caddonfoot: local notes
Plenty of Scottish homes have harled walls, 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 sound outside sealant is part of that.
For landlords with property near Galashiels station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Caddonfoot is about 3 miles west of Galashiels, in the Scottish Borders. Caddonfoot gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Caddonfoot is one of 89 towns and villages in the Scottish Borders we cover. You can also see our page for Edinburgh, roughly 27 miles from Caddonfoot.
All of TD1 is covered for external mastic, from the main roads to the quietest streets. Other places close to Caddonfoot include Peel (1 mile west), Clovenfords (1 mile north), Ashiestiel (1 mile west), Galashiels (3 miles east) and Boleside (3 miles east). We also work in nearby towns such as Hawick (13 miles south), Peebles (13 miles west), Selkirk (4 miles south), Jedburgh (15 miles south-east), Wilton (13 miles south) and Innerleithen (7 miles west).
Local landmarks in Caddonfoot
Locally, jobs take us to homes and businesses close to Clovenfords Hotel. For rail, the closest station is Galashiels station, about 2.9 miles east of the centre. Other landmarks nearby include Old Gala House (2.7 miles east) and Peel Hill (4.5 miles south). The countryside around Caddonfoot includes Haining Loch and Ashiesteel Hill.
The process
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the work takes a few hours to a few days, depending on the length of joint and the access in most cases. In smaller Scottish places, parking is usually 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 walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- 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
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
Getting a quote
Want a quote for external mastic? Please send an email to info@mrmastic.co.uk with a few details. We’ll explain what we’d do and give you a clear quote before any work starts.