Na h-Eileanan Siar · Scotland
Glazing & conservatory sealant in Crosbost, Na h-Eileanan Siar
Glazing silicone across Crosbost and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Shower screens leaking along the wall or tray
- Drips on the inside of a conservatory window
- Leaking glazing joints on a rooflight
Why it’s worth doing now in Crosbost
Topping up old silicone can look like a fix, but silicone does not stick to silicone, and the leak usually returns. A proper reseal is the lasting answer. In a place like Crosbost, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Doing several joints on one visit normally makes better use of the time than several visits. You will get one clear quote for the whole job.
Why Crosbost customers choose us
- Colour picked to suit the job
- 20+ years of sealant experience
- We agree the colour with you first
- An ARBOMaster approved applicator
Read our cost guide and our reviews.
Glazing silicone in Crosbost, done properly
Glass and frames expand and contract differently, and the silicone between them takes the strain. Once it splits or comes away, water finds a way through. We replace it with a glazing silicone that suits the glass and frame. If you have split or lifting silicone on glass and mouldy sealant around glass panels, we can put it right.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
All our work is covered by our one-year guarantee, wherever you are in Na h-Eileanan Siar.
- Where
- Crosbost (HS2)
- Wider area
- Na h-Eileanan Siar
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

When something else is needed
New sealant cannot fix everything, and we’ll tell you before any work starts. It won’t solve:
- A sagging or failing conservatory roof
- Rotten or badly damaged frames
- A broken pane or roof panel
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.
Where we work in Crosbost
- Conservatory frames
- Shower screens
- Glass balustrade bases
- Rooflights
- Glass-to-glass joints
- Glass-to-frame joints
What we’re called out for in Crosbost
Heat and cold make glass and frames move at different rates. Over years, that movement tears the silicone.
It’s worth asking for a quote if you see:
- New silicone smeared over old sealant
- Mouldy sealant around glass panels
- Water escaping where a screen meets the wall
- Silicone pulling away from the glass
In and around Crosbost, as anywhere, good glazing silicone starts with a clean, dry, properly prepared joint.
What your quote should include
- What happens if they find a problem under the old sealant
- What guarantee comes with the work
- How much experience the applicator has
- What preparation is included
For landlords and businesses
For anyone letting property in or around Crosbost, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
What we do, step by step
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours, depending on how many joints need doing. Outside jobs in Crosbost need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- First we agree the joints to be done.
- We cut away the failed silicone.
- We clean and prepare the joint.
- We apply and tool the new silicone.
- The joints are checked before we leave.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Clear items away from the joints we’re working on
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, email us at info@mrmastic.co.uk.
Related advice
Crosbost questions
Can you do glazing silicone in Crosbost?
Yes. We work across all of Scotland, and Crosbost is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Does the coastal weather in Crosbost affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Are you fully insured?
Yes. We are fully insured for every job we do.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we are using and why.
Can you just put new silicone over the old?
New silicone won’t bond to old silicone, so a top-up soon lets water through. The old bead always comes out first.
Are you an approved applicator?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
How long does glazing silicone take?
Most jobs take a few hours, depending on how many joints need doing, including preparation and clearing up. Your quote will say how long we expect yours to take.
What affects the quote in Crosbost
The price is agreed before any work begins. It’s based on:
- How easy the joints are to reach
- The old material and how stubborn it is
- Which sealant suits the joint
- The number of rooms or windows
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- If someone has resealed it before
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- The problem you’ve noticed
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
DIY sealant or a professional job?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
Frames and glazing around Crosbost
Crosbost 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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
Whether the job is in Crosbost itself or nearby, the right material for each joint matters as much as a neat finish.
Crosbost is in Na h-Eileanan Siar. We carry out glazing silicone for homes and businesses in Crosbost and nearby. Crosbost is one of 87 towns and villages in Na h-Eileanan Siar where we work.
Work in HS2 is quoted and booked the same way as anywhere else. We also cover the places around Crosbost: North Lochs (1 mile west), Liurbost (1 mile west), Lacasaidh (4 miles south-west), Sandwick (5 miles north-east) and Stornoway (5 miles north). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
What’s near Crosbost
A little further out are Western Isles Hospital (5.9 miles north). Open spaces near Crosbost include Loch na Craoibhe and Nisreaval.
