Shetland Islands · Scotland
New-build mastic & snagging in Kalliness, Shetland Islands
Our applicators work in Kalliness on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Beads laid onto grit and dust from the build
- Internal frame sealant that has split
- Smeared, uneven beads picked up at snagging
Signs you need new build mastic in Kalliness
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak and it shows once the home is in use.
These are the problems we are asked about most:
- Leaking shower tray seals in a new home
- Joints pulling apart as timber shrinks
- Smeared, uneven beads picked up at snagging
- Second-fix sealing on new plots
Whether the job is in Kalliness itself or nearby, the right material for each joint matters as much as a neat finish.
What to look for in a quote
- How the surfaces are prepared before sealing
- The length of the guarantee
- How long to leave it before use
- Whether all the old sealant comes out first
New build mastic in Kalliness
A new build should have a neat, sound bead at every joint. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water gets into the floor or walls. We work on windows & doors, plot handovers and show homes, and people most often call us about leaking shower tray seals in a new home and kitchen sealant that has pulled off the wall.
Timber frame is common in newer Scottish homes, and it settles over the first years, so skirting and floor joints can open up. Older stone-built homes, meanwhile, often have timber floors that move with the seasons.
A 12-month guarantee comes as standard, so you’re covered after we’ve gone.

- Place
- Kalliness (ZE2)
- Wider area
- Shetland Islands
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Aftercare tips
Looking after new joints is easy:
- Keep photos and emails about snagging items
- Do not wait for the house to settle if water is getting through
- Use the extractor fan every time you shower
- Avoid running a DIY bead over the old one
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers to help keep mould away.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in keeps the job straightforward.
What the job involves on each surface
Skirting and floors
Floors and skirting move as the house dries and the heating runs. Caulk cracks; a flexible sealant moves with it in a colour to suit.
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. Resealing properly keeps water where it belongs.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
Kalliness: your questions answered
Do you cover smaller places like Kalliness?
Yes, we do. We work across all of Scotland, islands included, from towns to the smallest places. Longer journeys are simply planned in advance.
Is there a guarantee on new build mastic in Kalliness?
All our work, in Kalliness and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Will you just run a new bead over the existing one?
No. Fresh silicone doesn’t stick to the old layer, so it soon lifts and traps water. We cut the old bead out completely.
Do you work for developers?
Yes. We work through plots to your schedule, room by room. Tell us the plots and the joints involved for a clear quote.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. Then drop us a line at info@mrmastic.co.uk.
Is it worth resealing while the house is still settling?
If the seal has failed and water is getting in, do it now. Hairline cosmetic gaps can wait until the house has settled.
How long should I leave it?
It depends on the product and the temperature. Before we leave, we will tell you the cure time.
Also near Kalliness
Other services in Kalliness
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Leaking fittings rather than failed sealant
- Broken tiles or a split tray
- Cracking that points to a structural problem
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
Where we work in Kalliness
- Show homes
- Bathrooms & en suites
- Windows & doors
- Skirting & floors
- Kitchens
- Plot handovers
New build mastic in Kalliness: local notes
Kalliness is within about 1 mile of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. Island jobs need planning around ferries and the weather, so give us as much notice as you can.
Around Kalliness, as everywhere, new build mastic is only as good as the preparation behind it.
Kalliness is in the Shetland Islands. We provide new build mastic to homes and businesses in Kalliness and nearby, as part of our work across the Shetland Islands. Our the Shetland Islands coverage runs to 63 places, Kalliness among them.
Jobs for new build mastic in ZE2 is quoted and booked the same way as anywhere else. Nearby, we also carry out new build mastic in Gott (4 miles south-east), Veensgarth (4 miles south-east), Aith (4 miles north-west), Vassa (5 miles north-east) and Easter Skeld (6 miles south-west). Within a short drive, we also cover Lerwick (7 miles south-east), Sound (7 miles south-east), Scalloway (6 miles south) and Brae (12 miles north). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
What’s near Kalliness
Well-known places in the area include Castle Holm (1.5 miles south). Not far away are Loch of Hellister and Russaness Hill.
How it works
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes anything from a few hours to several days, depending on the number of plots, depending on the amount of work. In smaller Scottish places, parking is generally 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 go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- We clean off dust from the build and prime the surfaces where the product needs it.
- A sealant chosen for each area goes in and is tooled smooth.
- Each area is checked and left with its cure time.
Preparing for the visit
- Tell us about any water getting in
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
How to get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
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For landlords and businesses
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.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
