North Ayrshire · Scotland
External & façade joints in Greenhills, North Ayrshire
Sealing brickwork movement joints, render, cladding and façade joints in Greenhills, with a 12-month guarantee on every job. Call for a quick quote.
- Cracked joints where brick meets render or frames
- Weathered mastic that no longer stretches
- Rain getting behind render or cladding at a joint
What we do, step by step
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. Somewhere like Greenhills 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 start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- We cut out the failed sealant and rake out any dirt or growth.
- Both sides are cleaned back to sound material and primed if needed.
- 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.
How to prepare
- Mention any parking rules near the property
- Where the joints are inside, avoid wetting them before we arrive
- Let us know if you’ve seen damp or leaks
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
Advice
External mastic for homes and businesses in Greenhills
A movement joint is a deliberate break that lets a wall expand and contract. The sealant in it has to stretch and squeeze for years, so once it splits or hardens, the joint stops working and water gets in. If you are dealing with weathered mastic that no longer stretches and joints pointed up with cement by mistake, we can put it right, whatever the surface.
Outside joints can only be sealed when they’re dry, so work in Greenhills depends on the weather, and longer journeys are planned in advance. Tell us how to reach each wall, gutter and roofline.
Each job carries a 12-month guarantee.
- Location
- Greenhills (KA15)
- Wider area
- North Ayrshire
- Cover
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Clear growth from the base of walls and joints
- Point out the joints to other trades
- Check external joints each spring
- Act on the first splits you see
Avoid pressure-washing straight into the joints. A strong jet can damage the edges of the bead.
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.
Landlords, agents and businesses in Greenhills
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Why it’s worth doing now in Greenhills
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner so it’s worth doing right. 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.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and send you a clear quote before any work starts.
Why us?
- 4.9 on Google from 180+ five-star reviews
- ARBOMaster approved applicator
- Domestic, commercial and hotel work
- Tidy, careful work
Read how sealant jobs are priced and customer reviews.
Greenhills buildings and the weather
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Greenhills is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for movement joints and outside wall joints to keep out.
Rented homes near Dunlop station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Greenhills is about 4 miles north-west of Stewarton, in North Ayrshire. Jobs in Greenhills get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across North Ayrshire, we cover 53 places, and Greenhills is one of them. For nearby work, see our Glasgow page, about 15 miles away.
All of KA15 is within our area for external mastic. That includes homes and businesses on Dunlop Road and Barrmill Road and the roads around them. Close by, we work in Barrmill (1 mile north-west), Burnhouse (1 mile south-east), Gateside (2 miles north-west), Dunlop (2 miles east) and Beith (3 miles north-west). Within a short drive, we also cover Irvine (8 miles south), Kilwinning (6 miles south-west), Saltcoats (9 miles south-west), Largs (12 miles north-west), Ardrossan (10 miles south-west) and Stevenston (8 miles south-west).
Landmarks near Greenhills
Greenhills’s nearest station is Dunlop station, about 2.4 miles east. A little further out are Barony and Castle of Giffen (under half a mile east). Green spaces nearby include Dunlop Hill and Blae Loch.
What else we do in Greenhills
When something else is needed
In fairness, there are a few things sealant won’t fix:
- Loose or hollow render, which needs re-rendering
- Cracks in the bricks or render themselves, away from the joints
- Subsidence or other structural problems
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think before booking.
Joints and surfaces we work on
- Façade panels
- Copings & trims
- Joints between brick and frames
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
Common questions in Greenhills
Will you come out to Greenhills?
Yes. Greenhills is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Can you do external mastic in Greenhills?
Yes, Greenhills is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear quote.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It’s sealed with a flexible sealant, not mortar.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
What colours does the sealant come in?
Exterior sealants are made in a range of colours, from greys and browns to whites and stone shades. We choose the closest to your brick or render.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses, and we are fully insured.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.
When to call us in Greenhills
A lot of failed joints come down to preparation: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
Common reasons people contact us are:
- Joints with sealant missing in places
- Plants rooting in failed movement joints
- Joints pointed up with cement by mistake
- Failed sealant between panels on a façade
Historic houses such as Montgreenan, about 4.4 miles south-west, show how far back building around Greenhills goes.
Before you book anyone
- Whether they seal over old material or remove it
- Whether you can choose the colour
- Who turns up on the day
- When the joint can take water or movement
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. 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.