Shetland Islands · Scotland
Glazing Silicone in Lerwick
Glazing silicone for conservatories, rooflights, glass panels and shower screens for Lerwick, backed by a 12-month guarantee. Call for a quick quote.
- Stained, discoloured glazing silicone
- New silicone smeared over old sealant
- Leaking glazing joints on a rooflight
Glazing silicone in Lerwick, done properly
Across Lerwick, we reseal glazing joints in homes, offices and hotels. Conservatories, rooflights, glass panels and shower screens are all part of the job. If you have new silicone smeared over old sealant and water running down inside the glass, we can help.
Outdoor sealant needs a dry surface, so window work around Lerwick is planned around the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
There’s a 12-month guarantee on every job, large or small.
- Place
- Lerwick (ZE1)
- Wider area
- Shetland Islands
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What glazing silicone looks like in Lerwick
Lerwick is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on glazing joints and frame seals, which can dry out and crack sooner where a building faces the weather. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
Schools such as Anderson High School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Lerwick is in the Shetland Islands. Whether you are in the middle of Lerwick or further out, we cover glazing silicone for every kind of property. Lerwick is one of 63 places in the Shetland Islands where we work for glazing silicone.
Work in ZE1 works the same way as everywhere else we cover. Glazing silicone is available to properties on High Street, Market Street and Church Road and the roads around them. Being close to the A969 and A970, Lerwick is simple for us to get to. Neighbouring places we cover for glazing silicone include Sound (1 mile south-west), Gremista (1 mile north), Heogan (1 mile north-east), Grindiscol (2 miles south-east) and Gunnista (2 miles north-east). As one of the bigger places in the Shetland Islands, Lerwick has every kind of property, from flats to offices. Island and remote addresses take a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
What’s near Lerwick
We work in homes and buildings around Gilbertson Park and Grand Hotel, among other places. A little further out are Gilbert Bain Hospital (under half a mile south) and Shetland Museum (under half a mile north-east). Not far away are Setter Hill and Clickimin Loch.
Nearby places to Lerwick
Also in Lerwick
Why act early in Lerwick
Replacing a conservatory roof is major work. If the leak is a failed sealant joint renewing the joint is the simpler fix. If it’s the roof itself, we will tell you. Around Lerwick, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
What you pay reflects the work, not guesswork. That is why we ask about the job first and agree the price before starting.
Why Lerwick customers choose us
- Domestic, commercial and hotel work
- We agree the colour with you first
- Anti-fungal silicone where joints get wet
- Arbo and Everbuild products
See our cost guide and customer reviews.
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Frames that have decayed or split
- A roof that has moved or dropped
- Leaks from the roof covering or flashing (a roofer’s job)
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before booking.
Where we work in Lerwick
- Glass-to-frame joints
- Shower screens
- Glass-to-glass joints
- Conservatory frames
- Rooflights
- Glass balustrade bases
How we quote for glazing silicone
Jobs vary more than people expect. What affects the quote:
- Any working-time requirements on site
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- The type of property
- Where the property is
- Whether it has been sealed before
- Pictures of the joints, sent by email
Need a quote? Please drop us a line at info@mrmastic.co.uk and tell us about the job. We’ll explain what we’d do and send you a clear quote before we start.
Lerwick questions
Do you cover smaller places like Lerwick?
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.
Can you do glazing silicone in Lerwick?
Yes. We work across all of Scotland, and Lerwick is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Can you do several jobs on one visit?
Yes, we can. More than one area can be quoted together.
Can you replace a misted double-glazed unit?
Glass replacement is not our trade. We look after the sealant joints, and we will tell you if a unit looks like it has failed.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take anything from an hour or two to most of a day, depending on the size of the job. Somewhere like Lerwick may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We trace the leak and confirm it’s a sealant joint.
- We remove the old sealant carefully.
- The joint is cleaned and degreased.
- A neutral-cure glazing silicone is applied and tooled.
- We check the finished joints and test with water where it’s safe.
Before we arrive
- Mention any sign-in or site rules at work premises
- Mention if the joints have been sealed before
- Let us know if you’ve seen damp or leaks
Ask for a quote
Getting a quote is simple: let us know the job and the location. A few photos by email make the job easier to understand.
Advice
Surface by surface
Conservatory frames
Leaks often start where the frame meets the wall. We remove the failed sealant and renew it.
Rooflights
A rooflight faces rain and sun from above. The sealant around the glass and frame wears faster than most.
Common problems we fix in Lerwick
Sealant laid over old sealant does not last. Plenty of leaks come from a quick top-up over the old bead, and water gets between the layers.
Most people get in touch after spotting one of these:
- Cracked silicone between glass panels
- Shower screens leaking along the wall or tray
- Water running down inside the glass
- A quick top-up bead that didn’t last
If you live in an older home near St Margaret's Roman Catholic Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Which sealant they’ll use, and why
- What happens if the job turns out different
- How much experience the applicator has
- Whether VAT is included