Na h-Eileanan Siar · Scotland
Glazing Silicone in Upper Coll
Problem with your glazing joints in Upper Coll? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Water tracking down the inner face of the glass
- Black or yellowed silicone on glass joints
- Water getting into a conservatory at the joints
About our glazing silicone in Upper Coll
Frameless shower screens rely on sealant to keep water in. Leaks usually come from the wall joint or the tray joint, and we reseal both. We are often asked to deal with water tracking down the inner face of the glass and glazing silicone that has cracked or come away, on glass balustrade bases, shower screens and rooflights.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Location
- Upper Coll (HS2)
- Region
- Na h-Eileanan Siar
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What we do, step by step
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. The job generally takes anything from an hour or two to most of a day, depending on the size of the job, and we tell you how long to leave it before we go. For a place like Upper Coll, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We find where water is getting in and check whether it’s a sealant joint.
- We cut out the failed silicone, taking care of the glass and frame.
- We clean the joint with a solvent that suits the glass and frame.
- We apply a neutral-cure glazing silicone and tool it smooth.
- The finished joints are checked and, where it’s safe, tested with water.
Before we arrive
- Mention any parking rules near the property
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
How to get a quote
We quote each job on its own. Simply send an email to info@mrmastic.co.uk and describe the job, and pictures are welcome.
Related advice
How we quote for glazing silicone
You’ll get a clear quote before any work starts. It’s based on:
- The product the joint needs
- How easy the joints are to reach
- Any working-time requirements on site
- The number of rooms or windows
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- Photos by email, if that’s easy
- How many joints, rooms or windows are involved
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, drop us a line at info@mrmastic.co.uk.
Landlord and commercial work in Upper Coll
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Hotels need rooms back in use, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Other services in Upper Coll
Leave it or put it right?
A leaking joint won’t fix itself. Water can damage frames, walls, flooring and furniture so early action saves a bigger repair. In an older home around Upper Coll, damp from a failed joint can get into timber and plaster.
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 choose Mr Mastic in Upper Coll
- 180+ five-star Google reviews
- You choose the colour before work begins
- ARBOMaster approved applicator
- Every job guaranteed for a year
Read our cost guide or what customers say.
Signs you need glazing silicone in Upper Coll
New silicone over old silicone will not bond. 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:
- Glass-to-glass joints that have split
- Water escaping where a screen meets the wall
- Split or lifting silicone on glass
- Leaks where conservatory glass meets the frame
Whether the job is in Upper Coll itself or nearby, the right material for each joint matters as much as a neat finish.
What to look for in a quote
- What happens if they find a problem under the old sealant
- How long to leave it before use
- Whether they’re fully insured
- Who does the work, and how experienced they are
What sealant work can’t fix
To be straight with you, there are a few things sealant won’t fix:
- A roof that has moved or dropped
- Water coming through the roof rather than a sealant joint
- A sealed unit that has misted inside
If in doubt, send an email to info@mrmastic.co.uk and we will say what we think.
What we seal
- Glass balustrade bases
- Glass-to-frame joints
- Glass-to-glass joints
- Rooflights
- Conservatory frames
- Shower screens
Upper Coll homes and the weather
Upper Coll 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 Upper Coll, as anywhere, good glazing silicone starts with a clean, dry, properly prepared joint.
Upper Coll (Gaelic: Col Uarach) is in Na h-Eileanan Siar. Our applicators cover glazing silicone for homeowners, landlords and businesses in Upper Coll. Upper Coll is one of 87 places in Na h-Eileanan Siar we cover for glazing silicone.
Jobs for glazing silicone in HS2 is quoted and booked the same way as anywhere else. Other places close to Upper Coll include Aird Tong (1 mile south), Tong (1 mile south-west), Bac (2 miles north-east), Newmarket (3 miles south-west) and Steinis (3 miles south). Remote and island addresses need a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
Local landmarks in Upper Coll
Well-known places in the area include Lewis Loom Centre (3.6 miles south-west) and Western Isles Hospital (3 miles south-west). Green spaces nearby include Loch Àirigh na Lic.
Questions from Upper Coll
Do you cover smaller places like Upper Coll?
Yes, Upper Coll is covered. Our work covers the whole of Scotland, islands included, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do glazing silicone in Upper Coll?
Yes. We work across all of Scotland, and Upper Coll is part of that. You can email us at info@mrmastic.co.uk and let us know what needs doing.
What do you need from me for a quote?
Tell us what needs doing and where, plus photos if you have them. We’ll ask anything else we need to know.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Upper Coll and the rest of Na h-Eileanan Siar.
Can you reseal the base of a glass balustrade?
Yes, we reseal the joint at the base channel. We do not install or replace the glass.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.