North Ayrshire · Scotland
West Kilbride External Mastic
External mastic in West Kilbride from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Leaking joints around cladding and façade panels
- Cracked joints where brick meets render or frames
- Movement joints with cracked, split or missing sealant
About our external mastic in West Kilbride
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two. We work on joints between brick and frames, copings & trims and concrete & block, and common reasons people get in touch are failed seals between different materials and brick movement joints where the sealant has split.
Outside joints can only be sealed when they’re dry, so work in West Kilbride depends on the weather. Tell us how to reach each wall, gutter and roofline.
Each job carries a 12-month guarantee.
- Where
- West Kilbride (KA23)
- Wider area
- North Ayrshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Different surfaces, different methods
Copings and trims
A failed coping joint lets water into the top of the wall. Sealing them early saves the wall below.
Brickwork movement joints
Vertical joints in long brick walls let the brickwork expand without cracking. They’re resealed over backing rod with a low-modulus sealant in a colour to suit the brick.
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
For anyone letting property in or around West Kilbride, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
What external mastic looks like in West Kilbride
West Kilbride is within about 2 miles of 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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
For an older house near a landmark such as Barony Parish Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
West Kilbride is about 4 miles north-west of Saltcoats, in North Ayrshire. Every kind of property in West Kilbride can book us for external mastic. The work is guaranteed for a year. West Kilbride is one of 53 places in North Ayrshire we cover. Glasgow is on our list too, around 25 miles away.
All of KA23 is within our area for external mastic. External mastic is available to properties on Main Street, Alton Street and Headrigg Road. Nearby, we also carry out external mastic in Seamill (1 mile south-west), Ardrossan (3 miles south-east), Fairlie (4 miles north), Saltcoats (4 miles south-east) and Millport (5 miles north-west). We also work in nearby towns such as Irvine (9 miles south-east), Kilwinning (7 miles south-east), Largs (7 miles north), Stevenston (5 miles south-east), Kilbirnie (8 miles north-east) and Girdle Toll (9 miles south-east). As one of the bigger places in North Ayrshire, West Kilbride has homes, rented property and businesses of every kind.
Local landmarks in West Kilbride
West Kilbride has its own railway station: West Kilbride station. A little further out are West Kilbride Museum (less than half a mile north-west) and Portencross Castle (1.9 miles west). Green spaces nearby include Stevenston Loch and Law Hill.
Why act early in West Kilbride
Sealing over the top of old mastic does not hold for long. New sealant doesn’t bond well to old, weathered sealant, so we always take the old sealant out. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Colour agreed with you before any work starts
- Sanitary silicone with an anti-fungal additive in wet areas
- 20+ years of sealant experience
- We are fully insured
See what affects the cost or our reviews.
What we do, step by step
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take a few hours to a few days, depending on the length of joint and the access. Around West Kilbride, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- 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.
How to prepare
- Try not to wet indoor joints just before the visit
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
Get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, drop us a line at info@mrmastic.co.uk.
Related advice
Signs you need external mastic in West Kilbride
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the joint eventually tears or comes away from one side.
Common reasons people contact us include:
- Joints where the bead has come unstuck
- Failed seals between different materials
- Failed sealant between panels on a façade
- Moss and dirt in joints with no sealant left
Letting a property close to West Kilbride station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Before booking anyone
- What happens if the job turns out different
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
- Are they insured?
Questions from West Kilbride
Does living near the coast affect external mastic in West Kilbride?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Is West Kilbride within the area you cover?
Yes, we do. Our work covers the whole of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
How do I get a quote for external mastic in West Kilbride?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Is the work guaranteed?
Yes. All our work carries our 12-month guarantee.
When will the joints need doing again?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Check the sealant is paintable before painting near it
- Wash walls gently around the sealant
- Don’t let climbing plants root in the sealant
- Have failed joints looked at early
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Small splits are the time to act. At that stage it’s a simple cut out and reseal before water has had years to get in.
Other services in West Kilbride
What sealant work can’t fix
It helps to know what we can’t do:
- Damp that isn’t coming from the joint
- Cracked brickwork or render that needs a builder or plasterer
- Walls that need new movement joints cut into them
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before you book.
Where we work in West Kilbride
- Façade panels
- Copings & trims
- Concrete & block
- Render & cladding joints
- Brickwork movement joints
- Joints between brick and frames