Scottish Borders · Scotland
External & façade joints in Selkirk, Scottish Borders
Specialist external mastic for Selkirk: careful preparation, the right product and tidy work. Call for a quick quote.
- Rigid filler in a joint that should flex
- Damp patches traced to an open external joint
- Sealant pulling away from one side of the joint
External mastic for homes and businesses in Selkirk
A movement joint is only as good as its depth. Backing rod controls how deep the sealant goes and keeps it off the back of the joint, leaving it bonded to two faces so it can move with the wall. We are often asked to deal with water getting into walls through failed joints and movement joints filled with mortar instead of sealant, on façade panels, concrete & block and brickwork movement joints.
Outside joints can only be sealed when they’re dry, so work in Selkirk depends on the weather. Let us know about access to every wall and roofline.
You get a 12-month guarantee, the same in Selkirk as everywhere else we work.
- Location
- Selkirk (TD7)
- Region
- Scottish Borders
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
When something else is needed
To be straight with you, there are a few things sealant will not fix:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracks in the bricks or render themselves, away from the joints
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before you book.
What we seal
- Copings & trims
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
- Façade panels
- Render & cladding joints
External mastic in Selkirk: local notes
Historic houses like Bowhill House (about 2.9 miles west) are a reminder that the area around Selkirk has older buildings as well as new. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. 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.
Rented homes near Galashiels station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies. In the older streets around Church Of Our Lady And St Joseph, the joints between older walls, newer extensions and the roofline need a sealant that can move. Managing a site like Selkirk High School? Then its movement joints, gutters and trims need looking after like any other building’s.
Selkirk is about 5 miles south of Galashiels, in the Scottish Borders. Jobs in Selkirk get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Our the Scottish Borders coverage runs to 89 places, Selkirk among them. Edinburgh is on our list too, about 31 miles from Selkirk.
Postcode districts we cover here for external mastic: TD7. Local streets include High Street, Market Place and Station Road, and we cover them all. You’ll find Selkirk on the A7 and A707, which makes it straightforward to reach. Neighbouring places we cover for external mastic include Boleside (3 miles north-east), Midlem (4 miles east), Broadmeadows (4 miles west), Ashkirk (4 miles south) and Yarrowford (4 miles west). We also work in nearby towns such as Galashiels (5 miles north), Hawick (9 miles south), Peebles (15 miles north-west), Jedburgh (12 miles south-east), Wilton (9 miles south) and Innerleithen (10 miles north-west). Selkirk is among the bigger towns we cover in the Scottish Borders.
Landmarks near Selkirk
Locally, jobs take us to homes and businesses close to Town Arms Inn. Selkirk’s nearest station is Galashiels station, about 5 miles north of the centre. A little further out are Borders General Hospital (5 miles north-east) and Peel Hill (under half a mile south). Open spaces near Selkirk include Hare and Dunhog Mosses and Haining Loch.
Questions from Selkirk
Can you help a landlord with a rental near Galashiels station?
Yes, rental work is part of what we do. You can send an email to info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before any work starts.
Will you come out to Selkirk?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
How long will you be here?
Most jobs take anything from a few hours to several days, depending on the building. Your quote will say how long we expect yours to take.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you have insurance?
Yes. We are fully insured, and we can confirm the details when we quote.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Do the sealants smell?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
Why it’s worth doing now in Selkirk
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and does not last so it’s worth doing right. In an older home around Selkirk, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and give you a clear quote before we start.
What you get with us
- 4.9 on Google from 180+ five-star reviews
- ARBOMaster approved applicator
- Sanitary silicone with an anti-fungal additive in wet areas
- Every job guaranteed for a year
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Keep soil, plants and ivy away from the joints
- Act on the first splits you see
- Tell anyone working on the walls about the movement joints
- Make sure movement joints aren’t pointed over
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
A joint that has stopped moving pushes the movement elsewhere, normally as cracking in the brickwork or render nearby. Resealing it early helps prevent that.
How it works
On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. 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.
- 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.
- We clean both faces of the joint and prime them where the product calls for 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.
Getting ready for the visit
- Tell us about any water getting in
- Move anything stored near the joints
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For external mastic in Selkirk, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
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Quotes for external mastic in Selkirk
We quote each job individually. These are the things that affect it:
- The number of rooms or windows
- The old material and how stubborn it is
- The size of the job
- Whether the work is at height
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Access, such as stairs, a lift or height
- The address or postcode of the job
- Whether it has been sealed before
- Pictures of the joints, sent by email
To get a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before we start.
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
For landlords and businesses
We also work for property managers and facilities teams in Selkirk and across the Scottish Borders. We can quote a run of properties together, and we’re fully insured for the work.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.