Shetland Islands · Scotland
Glazing Silicone in Gunnista
Glazing silicone for conservatories, rooflights, glass panels and shower screens for homes and businesses in Gunnista and across the Shetland Islands. Fully insured, ARBOMaster approved and guaranteed for a year.
- Glass-to-glass joints that have split
- Black or yellowed silicone on glass joints
- New silicone smeared over old sealant
Why act early in Gunnista
Dealing with a leaking shower screen early protects the floor and ceiling. A small leak can reach the floor below before it shows. In a place like Gunnista, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please email us at info@mrmastic.co.uk and we will talk you through it.
Why choose Mr Mastic in Gunnista
- Old sealant always removed completely
- 12-month guarantee on every job
- 180+ five-star Google reviews
- Experience in homes, commercial sites and hotels
See our cost guide and customer reviews.
How we handle glazing silicone in Gunnista
Our work covers conservatory joints, rooflights and glass panels plus shower screens and the bases of glass balustrades. Each joint is cut out, cleaned and resealed. If you have conservatory leaks at frame and glazing joints and shower screens leaking along the wall or tray, we can put it right, on shower screens, glass balustrade bases and glass-to-glass joints alike.
Mastic can only go onto a dry joint, so outside work in Gunnista depends on the weather. Let us know about access to every frame, including any upstairs.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Gunnista (ZE2)
- Region
- Shetland Islands
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What sealant work can’t fix
It helps to know what we can’t do:
- Failed flashing around a conservatory
- A frame that needs repairing or replacing
- A roof that has moved or dropped
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.
Joints and surfaces we work on
- Glass-to-frame joints
- Shower screens
- Glass balustrade bases
- Rooflights
- Glass-to-glass joints
- Conservatory frames
The process
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours, depending on how many joints need doing. For a place like Gunnista, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First we agree the joints to be done.
- Old sealant is removed from the glass and frame.
- The surfaces are cleaned with a suitable solvent.
- We apply and tool the new silicone.
- We inspect the work and test it where we can.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
Ask for a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Related advice
Signs you need glazing silicone in Gunnista
Some conservatory leaks aren’t sealant at all: failed roof panels, slipped glazing bars and blocked gutters cause them too. That is why we trace the leak first.
Keep an eye out for any of the following:
- Conservatory leaks at frame and glazing joints
- Leaking glazing joints on a rooflight
- Water running down inside the glass
- Stained, discoloured glazing silicone
For an older house near a landmark such as St Ola's Church and burial-ground, the joint between an old wall and a newer frame is normally the first place rain gets in.
Comparing quotes
- The length of the guarantee
- What happens if they find a problem under the old sealant
- Is VAT in the price?
- How long to leave it before use
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Clear the conservatory gutters regularly
- Clean glass with a mild cleaner and a soft cloth
- Squeegee the shower screen after each use
- Open vents or windows to let moisture out
On shower screens, wipe or squeegee after use and keep the room ventilated. It helps stop mould getting into the silicone.
Drips or damp near a glazing joint shouldn’t be ignored. It may be sealant, or something else and we’ll find out which.
More services for Gunnista
Gunnista homes and the weather
Gunnista is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on glazing joints and frame seals, 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.
Schools such as Anderson High School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Gunnista is in the Shetland Islands. Jobs in Gunnista get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Gunnista is one of 63 towns and villages in the Shetland Islands we cover for glazing silicone.
Jobs for glazing silicone in ZE2 works the same way as everywhere else we cover. We also cover the places around Gunnista: Heogan (1 mile west), Gremista (2 miles west), Grindiscol (2 miles south), Lerwick (2 miles south-west) and Sound (3 miles south-west). If you’re somewhere remote, the job takes a little more planning, so let us know when you get in touch.
Local landmarks in Gunnista
Well-known places in the area include Shetland Museum (2 miles south-west) and Montfield Hospital (2.2 miles south-west). Open spaces near Gunnista include Loch of Aith.
What affects the cost of glazing silicone
Your quote is based on your job. We take into account:
- The size of the job
- Any mould that needs treating
- The product the joint needs
- Access and height
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
What we need to know
What to tell us when you ask for a quote:
- A few photos by email, if you can
- Whether it’s a home or a business
- The problem you’ve noticed
- Access, such as stairs, a lift or height
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, email us at info@mrmastic.co.uk.
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Your questions about glazing silicone in Gunnista
Is Gunnista within the area you cover?
Yes, Gunnista is covered. Our work covers the whole of Scotland, islands included, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is glazing silicone in a coastal place like Gunnista any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint before we leave.
How long will you be here?
As a guide, most jobs take a few hours, depending on how many joints need doing. Larger jobs naturally take longer.
How much does glazing silicone cost in Gunnista?
We don’t 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 we start.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Is balustrade sealant something you do?
Yes. The sealant joint at the base can be renewed. Fitting glass is a separate trade.