Orkney Islands · Scotland
Glazing & conservatory sealant in St Mary's, Orkney Islands
Glazing silicone for St Mary's, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Water escaping where a screen meets the wall
- Conservatory leaks at frame and glazing joints
- Rooflight joints letting water in
How it works
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours, depending on how many joints need doing. Outside jobs in St Mary's need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- We start by finding the leak and making sure sealant is the cause.
- Old silicone is cut away from the glass and frame without scratching either.
- We clean the joint with a solvent that suits the glass and frame.
- Glazing silicone suited to the joint is applied and tooled.
- The finished joints are checked and, where it’s safe, tested with water.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
- Keep children and pets away from the work area
How to get a quote
Every job is quoted individually, so the first step is telling us about yours. Just drop us a line at info@mrmastic.co.uk with the details.
Read more
Glazing silicone for homes and businesses in St Mary's
Cracked, stained or lifting silicone on glass spoils the look and lets water in. It comes off cleanly, without marking the glass and reseal the joint. If you are dealing with leaking glazing joints on a rooflight and water escaping where a screen meets the wall, we can help.
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.
Whatever the size of the job, you get the same 12-month guarantee.
- Where
- St Mary's (KW17)
- Wider area
- Orkney Islands
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026

Looking after it afterwards
So the new joints stay in good condition:
- Ventilate the conservatory to cut condensation
- Inspect the sealant on glazing annually
- Squeegee the shower screen after each use
- Act on drips or damp patches early
Gentle products are best near the sealant. Harsh solvents may damage the bead.
Conservatory leaks rarely stay small. Water travels along the frame and into the wall, so get it looked at when you first see it.
What we cannot put right
Before you book, it’s worth knowing the limits:
- Condensation trapped between two panes
- Cracked or broken glass
- A sagging or failing conservatory roof
If you’re not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
What we seal
- Glass-to-frame joints
- Shower screens
- Conservatory frames
- Glass-to-glass joints
- Rooflights
- Glass balustrade bases
Why act early in St Mary's
Replacing a conservatory roof is major work. If the leak is a failed sealant joint, resealing is far simpler. If it’s the roof itself, we will tell you. In a place like St Mary's, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
What you get with us
- Rated 4.9 stars on Google
- Sealant colour chosen to suit
- White, clear, grey or coloured to suit, where the product allows
- Neat joints and a tidy finish
Read our cost guide and customer reviews.
St Mary's homes and the weather
St Mary's is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on glazing joints and frame seals, especially on the side facing the sea. Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Around St Mary's, as everywhere, glazing silicone is only as good as the preparation behind it.
St Mary's is about 6 miles south of Kirkwall, in the Orkney Islands. Our applicators cover glazing silicone for homes and businesses in St Mary's and nearby, as part of our work across the Orkney Islands. 51 places in the Orkney Islands are on our list, large and small.
We work across KW17 for glazing silicone. We cover properties on Station Square, St Mary's Road and Storehouse Place and the roads around them. Neighbouring places we cover for glazing silicone include Upper Sanday (3 miles east), Burray Village (4 miles south), Toab (4 miles north-east), Grimness (5 miles south) and St Margaret's Hope (5 miles south). St Mary's is among the bigger towns we cover in the Orkney Islands. For island and remote addresses, the job takes a little more planning, so let us know when you get in touch.
Near you in St Mary's
Well-known places in the area include Balfour Hospital (5.8 miles north) and Graemeshall Museum (0.5 miles north-east). For a walk, there’s Gaitnip Hill and Loch of Ayre.
What the job involves on each surface
Conservatory frames
Leaks often start where the frame meets the wall. We cut out the old sealant and reseal.
Glass-to-frame joints
Glass-to-frame joints need a sealant that bonds to both. We choose a product that suits both.
Questions from St Mary's
Do you cover St Mary's for glazing silicone?
Yes, St Mary's is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job, and we will give you a clear price.
Is St Mary's within the area you cover?
Yes. St Mary's is within the area we cover, which takes in towns, villages and rural addresses. 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.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels across the Orkney Islands.
Do you guarantee glazing sealant work?
There’s a 12-month guarantee on every job, glazing sealant included.
Do you fit new glass or sealed units?
No. Misting between panes means the sealed unit has failed, and a glazier needs to replace it.
Will resealing stop my conservatory leaking?
Often, if the leak is at a sealant joint. We trace the leak first before any sealing.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
What we are called out for in St Mary's
Sealant laid over old sealant does not last. Plenty of leaks come from a quick top-up over the old bead, and water gets between the layers.
Signs it’s time to call us include:
- Silicone pulling away from the glass
- Glass-to-glass joints that have split
- Rooflight joints letting water in
- A quick top-up bead that didn’t last
For jobs in and around St Mary's, choosing the right material for each joint is as important as a tidy finish.
What your quote should include
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
- Which colour the sealant will be
- Who does the work, and how experienced they are
How we quote for glazing silicone
Call for a quick quote. What matters most is:
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- The product the joint needs
- The old material and how stubborn it is
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
To make quoting easier, please include:
- How we’d reach the joints
- What’s wrong with the joints now
- Photos by email, if that’s easy
- The rough size of the job
If you are in St Mary's and need glazing silicone, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
