Shetland Islands · Scotland
Mail Glazing Silicone
Glazing silicone across Mail and nearby, with old sealant always removed completely and a 12-month guarantee.
- Drips on the inside of a conservatory window
- New silicone smeared over old sealant
- Split or lifting silicone on glass
Glazing silicone in Mail, done properly
We don’t replace glass, and misting between panes means a failed sealed unit. Our work is the sealant joints, which is where many leaks start. If you have failed sealant around rooflight glass and cracked silicone between glass panels, we can help, on glass-to-frame joints, glass-to-glass joints and shower screens alike.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
All of our work is guaranteed for twelve months, in Mail and everywhere else we cover.

- Where
- Mail (ZE2)
- Region
- Shetland Islands
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
More services for Mail
What glazing silicone looks like in Mail
Mail is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on glazing joints and frame seals, which can dry out and crack sooner where a building faces the weather. Work on the islands has to be planned around ferry crossings and the weather, so give us as much notice as you can.
In and around Mail, as anywhere, good glazing silicone starts with a clean, dry, properly prepared joint. If you live in an older home near Mail Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Mail is about 9 miles south of Lerwick, in the Shetland Islands. Every kind of property in Mail is covered for glazing silicone, old or new, large or small. Every job comes with our 12-month guarantee. Mail is one of 63 towns and villages in the Shetland Islands we cover.
We work across ZE2 for glazing silicone. Close by, we work in Bremirehoull (1 mile north), Cunningsburgh (1 mile north), Aithsetter (2 miles north-east), Sandwick (2 miles south) and Hoswick (3 miles south). We also work in nearby towns such as Lerwick (9 miles north), Sound (8 miles north) and Scalloway (7 miles north). If you’re somewhere remote, the job takes a little more planning, so mention it when you ask for a quote.
Landmarks near Mail
The countryside around Mail includes Loch of Fladdabister.
Mail: your questions answered
Will you come out to Mail?
Yes. Mail is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Can you do glazing silicone in Mail?
Yes, Mail 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.
Do the sealants smell?
Possibly a little. Any smell clears as the sealant cures.
Are you insured?
Yes. Full insurance covers our work.
What sealant do you use on glazing?
We use a neutral-cure glazing silicone suited to glass and the frame. Shower screens get anti-fungal silicone.
What does glazing silicone cost?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Do you fit new glass or sealed units?
That is not something we do. Misting between panes means the sealed unit has failed and needs replacing by a glazier.
What happens if it’s left?
If the problem is a misted unit or a broken panel, sealant won’t help. We say so plainly and point you to a glazier or roofer. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why book with us
- A 12-month guarantee on all work
- Sanitary silicone with an anti-fungal additive in wet areas
- Neat joints and a tidy finish
- Homes, businesses and hotels
Take a look at our cost guide and what customers say.
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Failed flashing around a conservatory
- Frames that have decayed or split
- Condensation trapped between two panes
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before booking.
Where we work in Mail
- Glass-to-glass joints
- Rooflights
- Shower screens
- Glass balustrade bases
- Conservatory frames
- Glass-to-frame joints
What happens on the day
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for most jobs, and the area is left clean. Around Mail, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- We find where water is getting in and check whether it’s a sealant joint.
- The old sealant is removed from the glass and frame without scratching them.
- Surfaces are cleaned with a solvent suited to glass and the frame.
- New glazing silicone goes in and is tooled to a neat finish.
- We look over every joint and, where we can, test it with water.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
Get a quote
Getting a quote is simple: let us know what needs doing and where. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Advice
Surface by surface
Conservatory frames
Conservatory frame joints are a common source of leaks. We remove the failed sealant and renew it.
Glass-to-glass joints
You see these joints clearly, so we take care to leave a neat bead.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep conservatory gutters clear of leaves
- Inspect the sealant on glazing annually
- Do not leave a drip for the next storm
- Use a gentle glass cleaner and a soft cloth
Gentle products are best near the sealant. Harsh solvents may damage the bead.
If silicone on glass has cracked, water is already getting in. Renewing it early keeps it simple, compared with repairing damaged frames or plaster.
Quotes for glazing silicone in Mail
For a quick quote, just ask. The main things that affect it are:
- How easy the joints are to reach
- Any mould that needs treating
- Any working-time requirements on site
- The number of rooms or windows
Combining jobs into one visit is generally more efficient than separate visits. You will get one clear quote for the whole job.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- Where the job is, and your postcode
- How we’d reach the joints
Every job is quoted individually, so the first step is telling us about yours. Simply drop us a line at info@mrmastic.co.uk and describe the job, and photos are welcome.
