Shetland Islands · Scotland
New-build mastic & snagging in Sandwick, Shetland Islands
Problem with your new-build sealant joints in Sandwick? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Gaps between new skirting and floors
- Shower seals failing in the first year or two
- Plot mastic for developers ahead of handover
About our new build mastic in Sandwick
We never seal over a failed new-build bead. Fresh silicone can’t bond to the old layer, so the joint is cut out, cleaned, dried and resealed. We work on kitchens, bathrooms & en suites and show homes, and people most often call us about sealant that never bonded to the surface and cracked sealant around new window and door frames.
Work in a place like Sandwick is planned ahead, journey included. Inside work goes ahead in any weather; outside mastic needs a dry day.
We stand behind the work with a 12-month guarantee.
- Location
- Sandwick (ZE2)
- Region
- Shetland Islands
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
For landlords and businesses
Letting agents and landlords in Sandwick can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
Other services in Sandwick
What happens on the day
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for most snagging lists, longer for a run of plots. For a place like Sandwick, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- First we work through your snagging list or plot schedule with you.
- Failed or untidy sealant is cut out completely.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Each area is checked and left with its cure time.
Before we arrive
- Try not to wet indoor joints just before the visit
- Clear items away from the joints we are working on
- Tell us about any previous sealing or DIY attempts
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Read more
When to call us in Sandwick
Sealant is often one of the last jobs before handover. Dusty, unprimed joints are common, so the bead never bonds properly.
Most people get in touch when they notice one of these:
- Smeared, uneven beads picked up at snagging
- Skirting joints opening in the first winter
- Joints pulling apart as timber shrinks
- Leaking shower tray seals in a new home
Around Sandwick, as everywhere, new build mastic is only as good as the preparation behind it.
What your quote should include
- Is the old sealant removed completely?
- What insurance they hold
- What happens if they find a problem under the old sealant
- How long to leave it before use
What affects the cost of new build mastic
Call for a quick quote. What matters most is:
- The amount of work
- Which sealant suits the joint
- How easy the joints are to reach
- When we can work, for business premises
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Asking for a quote
To help us quote quickly, please include:
- What’s wrong with the joints now
- How we’d reach the joints
- Roughly how big the job is
- Whether it’s a home or a business
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, email us at info@mrmastic.co.uk.
Aftercare tips
A little care helps the new joints last. We recommend:
- Avoid scourers and strong chemicals on sealant
- Use the extractor fan every time you shower
- Record problems with dated photos
- Get a leaking seal dealt with right away
Leave the sealant for the cure time we give you before showering or bathing. Silicone is usually left for about a day to cure enough for use.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in keeps the job straightforward.
When it isn’t the sealant
We will always be straight with you, so here’s what new sealant won’t do:
- Disputes or warranty claims with your builder
- Cracking that points to a structural problem
- Baths and trays that move too much for sealant to cope with
If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think before you book.
What we seal
- Skirting & floors
- Plot handovers
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
New build mastic in Sandwick: local notes
Sandwick is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. Work on the islands has to be planned around ferry crossings and the weather, so the more notice, the better.
For jobs in and around Sandwick, choosing the right material for each joint is as important as a tidy finish.
Sandwick is about 14 miles north of Lerwick, in the Shetland Islands. From the centre of Sandwick to the outskirts, new build mastic is available for homes and businesses alike. Sandwick is one of 63 places in the Shetland Islands we cover.
Here we cover the ZE2 postcode area for new build mastic. You’ll find streets such as Rocky Road, Saeter and Harlsdale. Neighbouring places we cover for new build mastic include Clate (1 mile south), Symbister (1 mile north-east), Hamister (1 mile north), Huxter (1 mile east) and Tripwell (2 miles north-east). Within a short drive, we also cover Lerwick (14 miles south), Sound (14 miles south) and Brae (12 miles west). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Landmarks near Sandwick
For a walk, there’s Ward of Clett and Loch of Sandwick.
Questions from Sandwick
Is Sandwick within the area you cover?
Yes, we do. Our work covers the whole of Scotland, islands included, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you cover Sandwick for new build mastic?
Yes, Sandwick 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 will send you a clear quote.
Can new sealant go on top of the old bead?
No. The old sealant is cut out fully, then clean and prime the joint, before resealing.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Is there a guarantee?
Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
What the job involves on each surface
Bathrooms and en suites
Baths, showers, basins and trays in new bathrooms are the most common new-build reseal. The old sealant comes out and anti-fungal sanitary silicone goes in after cleaning and priming.
Kitchens
Sink joints are wet all the time. A kitchen sealant goes in there, food-safe where it’s needed.