Scottish Borders · Scotland
External & façade joints in St Abbs, Scottish Borders
Problem with your movement joints in St Abbs? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Cracked joints where brick meets render or frames
- Movement joints filled with mortar instead of sealant
- Brick movement joints where the sealant has split
About our external mastic in St Abbs
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing, and we don’t skip that step. We work on concrete & block, brickwork movement joints and façade panels, and people most often call us about hard, crazed mastic that has stopped moving and cracked joints where brick meets render or frames.
Older stone buildings need a sealant that suits the stone, not an acetoxy product that can mark or attack it. Newer houses need their movement joints and roofline trims kept sound.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- St Abbs (TD14)
- Region
- Scottish Borders
- Cover
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What happens on the day
At the end, we look at the finished work together. The work normally takes anything from a few hours to several days, depending on the building, depending on the size of the job. Somewhere like St Abbs 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 look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
Ask for a quote
Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
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How the job changes by surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant coloured to suit the wall.
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Landlords, agents and businesses in St Abbs
If you manage several properties in or around St Abbs, several properties can go on one quote. Send us the addresses and the work at each.
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.
Leave it or put it right?
A failed movement joint lets water into the wall and can run behind render or cladding. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why us?
- Sanitary silicone with an anti-fungal additive in wet areas
- You choose the colour before work begins
- Colour picked to suit the job
- Quality sealants from Arbo and Everbuild
Take a look at our cost guide and our reviews.
Towns and villages near St Abbs
What else we do in St Abbs
Your questions about external mastic in St Abbs
I let a flat near Reston station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Is external mastic in a coastal place like St Abbs any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
How do I get a quote for external mastic in St Abbs?
Size, access and the old material all affect the cost. Ask us for a quote.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.
Can new sealant go over the old?
No, it won’t last. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Can you reach joints on upper floors?
It depends on the building. Send us photos and a rough idea of the height, and we’ll confirm what access is needed.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Do you have insurance?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
Keeping the joints in good condition
So the new joints stay in good condition:
- Never let anyone fill a movement joint with mortar
- Look over the joints every year, ideally after winter
- Wash walls gently around the sealant
- Do not let climbing plants root in the sealant
Keep pressure washers away from the sealant. High-pressure water can lift the edges.
Act while the splits are small. Then it’s a straightforward cut-out and reseal before water has had years to get in.
What external mastic looks like in St Abbs
St Abbs 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 the older streets around St Abbs Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
St Abbs is in the Scottish Borders. Across the TD14 area, we can carry out external mastic at your property. 89 places in the Scottish Borders are on our list, from the larger towns to small villages. Our Edinburgh page covers work nearby (42 miles or so).
We work across TD14 for external mastic. If you need external mastic at a property on Seaview Terrace, Murrayfield and Creel Road or anywhere close by, we can help. Other places close to St Abbs include Scottish Borders (1 mile south-west), Coldingham (1 mile south-west), Eyemouth (2 miles south-east), Ayton (4 miles south) and Reston (4 miles south-west).
What’s near St Abbs
St Abbs’s nearest station is Reston station, about 4.1 miles south-west of the centre. A little further out are Eyemouth Museum (2.4 miles south-east) and Press Castle (3.2 miles west). For a walk, there’s Ayton Hill and Mire Loch.
When to call us in St Abbs
Some movement joints have been pointed up with mortar. With the joint locked solid, the movement turns into cracks elsewhere in the wall.
People usually contact us when they notice one of these:
- Hard, crazed mastic that has stopped moving
- Joints with sealant missing in places
- Moss and dirt in joints with no sealant left
- Sealant pulling away from one side of the joint
Letting a property close to Reston station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
What to look for in a quote
- What happens if they find a problem under the old sealant
- How the joint is cleaned and prepared
- Are they insured?
- Is VAT in the price?