North Ayrshire · Scotland
New-build mastic & snagging in Lochranza, North Ayrshire
New build mastic for Lochranza, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps opening as the house dries out and settles
- Frame joints opening as the plaster dries
- Gaps behind new kitchen upstands
Why deal with it now?
A hairline gap at a skirting can wait, but water getting through can’t. If you’re unsure which you have, send an email to info@mrmastic.co.uk with pictures. In an older home around Lochranza, damp from a failed joint can get into timber and plaster, which is a far bigger job than the sealant.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Why us?
- 20+ years of sealant experience
- Every job guaranteed for a year
- Trusted Arbo and Everbuild sealants
- Old sealant always removed completely
See our cost guide or what customers say.
About our new build mastic in Lochranza
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover. We work on skirting & floors, bathrooms & en suites and windows & doors, and the jobs we see most are gaps behind new kitchen upstands and gaps opening as the house dries out and settles.
Work in a place like Lochranza is planned ahead, journey included. Outdoor plot mastic needs dry weather, but indoor floor and skirting joints can be sealed whatever the forecast.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.

- Where
- Lochranza (KA27)
- Region
- North Ayrshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
When to call us in Lochranza
The first winter with the heating on dries a new home quickly. Gaps open along skirting, frames and worktops and cracks appear in the sealant.
Common reasons people contact us include:
- Leaking shower tray seals in a new home
- Cracked caulk along new skirting
- Smeared, uneven beads picked up at snagging
- Cracks appearing as a new home settles
Whether the job is in Lochranza itself or nearby, the right material for each joint matters as much as a neat finish.
Questions to ask before you book
- How long the guarantee is
- What the quote includes, VAT included or not
- What insurance they hold
- Who turns up on the day
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
A careful DIYer can reseal a simple joint, 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.
What new build mastic looks like in Lochranza
Lochranza is within about 1 mile of the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Lochranza is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for plot mastic and the sealant in new homes to keep out.
Around Lochranza, as everywhere, new build mastic is only as good as the preparation behind it.
Lochranza is about 20 miles west of Saltcoats, in North Ayrshire. If you need new build mastic in Lochranza, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We are based in Crawley and cover North Ayrshire, Lochranza included. Our North Ayrshire coverage runs to 53 places, Lochranza among them. For nearby work, see our Glasgow page (41 miles or so).
Postcode districts we cover here for new build mastic: KA27. That includes homes and businesses on Bearlach Dearg and Newton Road and the roads around them. Other places close to Lochranza include Pirnmill (6 miles south-west), Corrie (8 miles south-east), Whitehouse (10 miles north-west), Kingarth (11 miles east) and An Tairbeart (12 miles north-west). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Local landmarks in Lochranza
A little further out are Lochranza Castle (less than half a mile south). The countryside around Lochranza includes Torr Meadhonach and Loch na Davie.
What affects the quote in Lochranza
The quote reflects the job in front of us. We look at:
- Which sealant suits the joint
- The old material and how stubborn it is
- Whether the work is at height
- Whether there’s mould to deal with
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- How we’d reach the joints
- The problem you’ve noticed
- Whether it has been sealed before
- Roughly how big the job is
Want a quote for new build mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
FAQs for Lochranza
Will you come out to Lochranza?
Yes. Lochranza is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Is there a guarantee on new build mastic in Lochranza?
All our work, in Lochranza and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.
Can tenants book the work?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Should I wait before resealing?
For failed seals that let water through, the best time is now. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
Are you insured?
Yes, we are fully insured.
What does new build mastic cost?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before any work starts.
The process
Before we leave, we go over the finished joints with you. The visit itself normally takes anything from a few hours to several days, depending on the number of plots, depending on the size of the job. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First we work through your snagging list or plot schedule with you.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- New sealant suited to each joint is applied and tooled neatly.
- Finally, each room is checked and you’re given the cure time.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Keep children and pets away from the work area
- Let us know if you’ve seen damp or leaks
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Read more
Towns and villages near Lochranza
More services for Lochranza
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Report sealant problems to your builder during the snagging period
- Record problems with dated pictures
- Act quickly if a seal starts to leak
- Do not seal over failed sealant yourself
Clean the sealant with a mild detergent and a soft cloth. Keep scourers and harsh chemicals off it.
Do not let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you so report it promptly.
