North Ayrshire · Scotland
External & façade joints in Gateside, North Ayrshire
Professional external mastic in and around Gateside, with every bit of old sealant taken out first and a 12-month guarantee.
- Sealant pulling away from one side of the joint
- Failed seals between different materials
- Rigid filler in a joint that should flex
About our external mastic in Gateside
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing. We’re often asked to deal with movement joints with cracked, split or missing sealant and old sealant gone brittle and cracked, on façade panels, joints between brick and frames and render & cladding joints.
Outside joints can only be sealed when they’re dry, so work in Gateside depends on the weather. Tell us how to reach each wall, gutter and roofline.
Every job comes with our 12-month guarantee.
- Location
- Gateside (KA15)
- Region
- North Ayrshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Wash walls gently around the sealant
- Fix overflowing gutters above sealed joints
- Keep movement joints as flexible joints, not mortar
- Check external joints each spring
Do not let soil, plants or ivy build up against the new joints. Anything that holds water against the joint wears it out sooner.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.
How the visit works
You do not need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes a few hours to a few days, depending on the length of joint and the access for a typical job. Outdoor work around Gateside depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- 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.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Related advice
When to call us in Gateside
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
If you can see any of these, it’s time to have the joints looked at:
- Sealant that has lost its bond to the brick or render
- Failed seals between different materials
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
If you let a flat or house near Glengarnock station, split movement joints are easy to miss on a rental until damp shows inside.
What to look for in a quote
- Is VAT in the price?
- What happens if the job turns out different
- What preparation is included
- What insurance they hold
What happens if it’s left?
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together, and access only has to be arranged once. In an older home around Gateside, damp from a failed joint can get into timber and plaster.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
Why choose Mr Mastic in Gateside
- Colour agreed with you before any work starts
- We leave the area clean and tidy
- Any old sealant cut out fully, not covered over
- Over 20 years’ experience
Take a look at how sealant jobs are priced and what customers say.
Landlord and commercial work in Gateside
We work for landlords and letting agents as well as householders. Resealing between tenancies keeps a property looking cared for.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Gateside questions
Will you come out to Gateside?
Yes, Gateside is covered. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Gateside in your area for external mastic?
Yes. Our work covers the whole of Scotland, and Gateside is part of that. Just email us at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Do you work at height?
Each building is different. Tell us the height, the number of joints and what’s below them, and we’ll confirm what access is needed.
I’m a tenant. Can you help?
Yes. Check with your landlord; we can send the quote to them too.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then send an email to info@mrmastic.co.uk.
Can a movement joint be filled with mortar?
No. Rigid materials cannot move with the wall and the joint fails. Where a joint has been mortared, it can often be raked out and sealed properly.
What the job involves on each surface
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
Joints between dissimilar materials
Different materials may need different primers. We prepare both faces so the sealant bonds properly.
Quotes for external mastic in Gateside
You’ll get a clear quote before work begins. It takes into account:
- The old material and how stubborn it is
- The number and length of the joints
- Working hours on commercial sites
- The product the joint needs
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- Roughly how big the job is
- The address or postcode of the job
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. We will give you a clear price before any work starts.
External mastic in Gateside: local notes
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. 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.
Around Gateside, as everywhere, external mastic is only as good as the preparation behind it.
Gateside is about 7 miles south-west of Johnstone, in North Ayrshire. If you need external mastic in Gateside, please drop us a line at info@mrmastic.co.uk for a quick quote. We’re based in Crawley and cover North Ayrshire, Gateside included. Across North Ayrshire, we cover 53 places, and Gateside is one of them. You can also see our page for Glasgow, about 15 miles away.
All of KA15 is covered for external mastic, from the main roads to the quietest streets. External mastic is available to properties on Main Road and Reek Street. With the B777 close by, Gateside is easy for our applicators to reach for external mastic. If you’re just outside Gateside, we cover Beith (1 mile west), Barrmill (1 mile south), Longbar (2 miles west), Meikle Auchengree (3 miles west) and Glengarnock (3 miles west). Larger places within reach include Irvine (9 miles south), Kilwinning (7 miles south-west), Saltcoats (10 miles south-west), Largs (10 miles west), Ardrossan (10 miles south-west) and Stevenston (9 miles south-west).
Landmarks near Gateside
In Gateside, that means homes and buildings near The Smugglers Tavern, Orr's Trust Public Park and Beith Library, among other places. For rail, the closest station is Glengarnock station, about 2.6 miles west. Other landmarks nearby include Lochwinnoch Community Museum (3.4 miles north) and Broadstone Castle and Barony (within half a mile south). Green spaces nearby include Dunlop Hill and Lowes Loch.