Scottish Borders · Scotland
External & façade joints in Ayton, Scottish Borders
External mastic for Ayton, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Sealant that has lost its bond to the brick or render
- Joints with sealant missing in places
- Joints pointed up with cement by mistake
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
How we handle external mastic in Ayton
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, so it bonds to the two sides only and can stretch. Common call-outs are for plants rooting in failed movement joints and cracked joints where brick meets render or frames, across concrete & block, façade panels and copings & trims.
Across smaller places in Scotland, stone and harled cottages, farm buildings and newer houses often stand exposed to wind and rain. Outside joints on exposed walls work hard.
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.

- Where
- Ayton (TD14)
- Region
- Scottish Borders
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Common problems we fix in Ayton
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.
People usually contact us when they notice one of these:
- Plants rooting in failed movement joints
- Sealant that has lost its bond to the brick or render
- Failed seals between different materials
- Water getting into walls through failed joints
Homes close to Ayton Parish Church include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
What to look for in a quote
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
- Whether VAT is included
- Which colour the sealant will be
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Fix overflowing gutters above sealed joints
- Leave the joints unpainted unless we have said otherwise
- Get split or bare joints resealed while the damage is small
- Walk round the building once a year and look at the joints
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Act while the splits are small. At that stage it’s a simple cut out and reseal with no damage behind it to deal with.
Also near Ayton
Also in Ayton
What happens if it’s left?
An open joint keeps letting water into the wall with every downpour. In cold weather, frost can damage wet brick and render near the open joint, so the damage spreads beyond the joint. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Why Ayton clients choose us
- A choice of colours where the product allows
- More than 20 years in sealant work
- You choose the colour before work begins
- Domestic, commercial and hotel work
Take a look at how sealant jobs are priced or customer reviews.
Ayton questions
I let a flat near Reston station. Can you help?
Yes, we work for landlords and letting agents. You can send an email to info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before any work starts.
Is Ayton within the area you cover?
Yes, Ayton is covered. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
How do you reach high-level joints?
It depends on the building. Tell us the height, the number of joints and what’s below them, and we will confirm what access is needed.
When is the sealant fully cured?
Different products cure at different speeds, so please follow the time we give you.
How much does external mastic cost in Ayton?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
How long does external mastic take?
A typical job takes a few hours for a handful of joints, longer for a whole elevation, including preparation and clearing up. Your quote will say how long we expect yours to take.
Where are you based?
We work from Crawley. Our applicators cover Ayton, along with the rest of our area.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Signs to watch for are cracking, hardening and gaps at the edges and have them redone then.
Surface by surface
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it, or one the system allows. Tell us what the building has when you get in touch.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible in all weathers.
Ayton buildings and the weather
Ayton is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. 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 landlords with property near Reston station, outside joints that have cracked can let damp into a rental, so check them between lets.
Ayton is in the Scottish Borders. Wherever you are in the TD14 postcode area, we cover external mastic for homes and businesses. Our area takes in 89 places across the Scottish Borders, large and small. We also work in Edinburgh, around 42 miles away.
Here we cover the TD14 postcode area for external mastic. Whether your property is on High Street, Shearlaw Road and Lawfield Drive or a nearby road, our applicators can take on the job. Other places close to Ayton include Burnmouth (2 miles east), Eyemouth (2 miles north-east), Reston (3 miles west), Coldingham (3 miles north) and Scottish Borders (3 miles north).
Landmarks near Ayton
The closest station to Ayton is Reston station, roughly 2.6 miles west. Nearby you will also find Eyemouth Museum (2.5 miles north-east) and Ferney Castle (2.6 miles west). Not far away are Ayton Hill and Mire Loch.
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In smaller Scottish places, parking is normally less of an issue than access and distance. Tell us how to find the property and how to reach the work, 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
- Keep children and pets away from the work area
- Mention any tricky access
- Tell us about any previous sealing or DIY attempts
Get 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. When it suits you, email us at info@mrmastic.co.uk.
Related advice
When something else is needed
Before booking, it’s worth knowing the limits too:
- Rising or penetrating damp from elsewhere in the wall
- Loose or hollow render, which needs re-rendering
- Movement that’s more than a sealant joint can take
If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think.
Joints and surfaces we work on
- Façade panels
- Joints between brick and frames
- Copings & trims
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
