Na h-Eileanan Siar · Scotland
Back Glazing Silicone
Professional glazing silicone in and around Back, with old sealant always removed completely.
- Leaks where conservatory glass meets the frame
- Leaks from the base of a shower screen
- Silicone pulling away from the glass
How to look after the new joints
So the new joints stay in good condition:
- Clear the conservatory gutters regularly
- Avoid scraping close to the bead
- Check the silicone on glass every year or so
- Get a new leak looked at quickly
Keep conservatory gutters clear, so water drains away from the joints. Blocked gutters can push water where it shouldn’t go.
Don’t leave lifting or mouldy silicone on glazing. Peeling silicone lets water in behind and the leak gets worse.
Glazing silicone for homes and businesses in Back
Glazing silicone that has yellowed, blackened or come away spoils the look and lets water in. We remove it without scratching the glass or frame and reseal the joint. Common call-outs are for glazing silicone that has cracked or come away and conservatory leaks at frame and glazing joints, across glass-to-glass joints, glass-to-frame joints and rooflights.
Mastic can only go onto a dry joint, so outside work in Back depends on the weather. Let us know about access to every frame, including any upstairs.
Whatever the size of the job, you get the same 12-month guarantee in Back and across Na h-Eileanan Siar.
- Where
- Back (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Signs you need glazing silicone in Back
Some conservatory leaks are not sealant at all: broken panels, roof problems and blocked gutters can all let water in. We find the cause before we seal anything.
The most common problems we see are:
- Mouldy sealant around glass panels
- Rooflight joints letting water in
- Failed joints on frameless glass
- A quick top-up bead that didn’t last
Whether the job is in Back itself or nearby, the right material for each joint matters as much as a neat finish.
What your quote should include
- Who does the work, and how experienced they are
- Whether they seal over old material or remove it
- What preparation is included
- What insurance they hold
Glazing silicone in Back: local notes
Back 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. On the islands, wind and salt spray are hard on outside sealant.
Around Back, as everywhere, glazing silicone is only as good as the preparation behind it.
Back is about 6 miles north-east of Stornoway, in Na h-Eileanan Siar. We provide glazing silicone to householders, landlords and businesses in Back and nearby. Back is one of 87 towns and villages in Na h-Eileanan Siar where we work for glazing silicone.
Here we cover the HS2 postcode area for glazing silicone. You’ll find streets such as Broadbay View, Rathad na Sgoile and Sraid na H-Eaglaise, and we cover them all. If you’re just outside Back, we cover Sulaisiadar (5 miles south-east), Garrabost (5 miles south-east), Na h-Eileanan an Iar (5 miles south), Knock (5 miles south) and Aiginis (5 miles south). Remote and island addresses need a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
What’s near Back
Nearby you will also find Western Isles Hospital (5.4 miles south-west). Open spaces near Back include Loch Langavat.
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Why act early in Back
Silicone around glazing needs the right product. General-purpose sealant from a DIY shop may not suit glass or the frame, so we use neutral-cure glazing silicone. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, send an email to info@mrmastic.co.uk for an honest opinion and a quote.
Why choose Mr Mastic in Back
- We leave the area clean and tidy
- White, clear, grey or another colour, product permitting
- Full insurance on every job
- ARBOMaster approved applicator
See what affects the cost and our reviews.
Your questions about glazing silicone in Back
Is Back within the area you cover?
Yes, smaller places are covered as well as towns. We work across all 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 Back?
Yes, Back is within the area we cover. Our work covers the whole of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job.
Do you work for landlords and businesses?
Yes. As well as householders, we work for landlords, agents, businesses and hotels in Back.
Can you just put new silicone over the old?
New silicone will not bond to old silicone, so a top-up soon lets water through. We cut out the old sealant first.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Which silicone is used for glass joints?
A glazing silicone chosen for the joint. Neutral-cure silicone is the usual choice, as some acetoxy types can attack certain metals.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can you reseal a frameless shower screen?
Yes. We remove the old sealant and reseal the wall and tray joints.
Also in Back
What we do, step by step
All our tools and materials come with us in the van. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours, depending on how many joints need doing. Outdoor work around Back depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- First, we trace the leak and check it’s coming through 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.
- We apply a neutral-cure glazing silicone and tool it smooth.
- We check the joints and, where safe, run water over them.
Before we arrive
- Mention if the joints have been sealed before
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
To get a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Advice
How the job changes by surface
Glass-to-glass joints
You see these joints clearly, so we take care to leave a neat bead.
Glass-to-frame joints
Where glass sits in a frame, silicone keeps water out. A failed bead lets water in.
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
For anyone letting property in or around Back, jobs at different addresses can go on one quote. Send us the addresses and the work at each.