Scottish Borders · Scotland
Glazing & conservatory sealant in Nisbet, Scottish Borders
Glazing silicone for conservatories, rooflights, glass panels and shower screens in Nisbet, with a one-year guarantee on every job. Call for a quick quote.
- Glazing silicone that has cracked or come away
- Leaking glazing joints on a rooflight
- Mouldy sealant around glass panels
What the job involves on each surface
Shower screens
A screen’s wall joint and tray joint are where leaks start. We reseal both with anti-fungal silicone.
Glass balustrade bases
The base of a glass balustrade is usually sealed. When it fails, water can sit in the channel.
About our glazing silicone in Nisbet
We renew glazing silicone on conservatories, rooflights and glass panels plus shower screens and the bases of glass balustrades. Each joint is cut out, cleaned and resealed. We work on glass-to-frame joints, shower screens and glass balustrade bases, and people most often call us about a quick top-up bead that didn’t last and failed joints on frameless glass.
In and around a place like Nisbet, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
Each job carries a 12-month guarantee, large or small.
- Place
- Nisbet (TD8)
- Region
- Scottish Borders
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026

Why deal with it now?
Topping up old silicone can look like a fix, but silicone does not stick to silicone and water soon finds its way back. Cutting out and resealing properly lasts. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Why book with us
- Fully insured
- Approved under the ARBOMaster scheme
- White, clear, grey or coloured to suit, where the product allows
- A 12-month guarantee on all work
Take a look at what affects the cost and what customers say.
Other services in Nisbet
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
What happens on the day
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours, depending on how many joints need doing. For a place like Nisbet, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First, we check where the water gets in.
- We remove the old sealant carefully.
- We clean the glass and frame so the new silicone bonds.
- A neutral-cure glazing silicone is applied and tooled.
- We check the finished joints and test with water where it’s safe.
Before we arrive
- Mention any leaks or damp you’ve noticed
- Tell us if parking is tricky
- Move anything stored near the joints
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work and give you a clear quote.
Related advice
Questions from Nisbet
Can you do glazing silicone in Nisbet?
Yes, Nisbet 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 send you a clear quote.
Will you come out to Nisbet?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Are you fully insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
Can you reseal a frameless shower screen?
Yes, we do these often. The screen is resealed with anti-fungal silicone suited to bathrooms.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us, and we’re fully insured.
Is it worth trying it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Common problems we fix in Nisbet
New silicone over old silicone will not bond. Many failed joints we see have been topped up rather than cut out, and water gets between the layers.
Common reasons people contact us are:
- Water escaping where a screen meets the wall
- Glass-to-glass joints that have split
- Failed sealant around rooflight glass
- Leaks where conservatory glass meets the frame
If you live in an older home near Crailing Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- Which colour the sealant will be
- How long to leave it before use
- Whether they’re fully insured
- Who turns up on the day
What we can’t put right
We won’t take on work that won’t last, so these are the limits:
- A frame that needs repairing or replacing
- Leaks from the roof covering or flashing (a roofer’s job)
- A sagging or failing conservatory roof
Not sure which it is? You can email us at info@mrmastic.co.uk and we’ll tell you honestly before booking.
What we seal
- Glass balustrade bases
- Rooflights
- Glass-to-frame joints
- Shower screens
- Conservatory frames
- Glass-to-glass joints
What glazing silicone looks like in Nisbet
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. 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 Nisbet, as everywhere, glazing silicone is only as good as the preparation behind it.
Nisbet is about 13 miles north-east of Hawick, in the Scottish Borders. Homes, rented property, offices and hotels in Nisbet is covered for glazing silicone, old or new, large or small. Every job comes with our 12-month guarantee. Nisbet is one of 89 places in the Scottish Borders where we work. You can also see our page for Edinburgh, roughly 39 miles from Nisbet.
Here we cover the TD8 postcode area for glazing silicone. Other places close to Nisbet include Ancrum (3 miles west), Jedburgh (3 miles south), Roxburgh (4 miles north-east), Heiton (4 miles north-east) and Maxton (5 miles north-west). We also work in nearby towns such as Galashiels (13 miles north-west), Hawick (13 miles south-west), Kelso (6 miles north-east), Selkirk (13 miles west), Wilton (13 miles south-west) and Melrose (10 miles north-west).
Landmarks near Nisbet
Nearby you’ll also find Queen Mary's House (3.4 miles south-west) and Timpendean Tower (3 miles south-west). For a walk, there’s Peniel Heugh and Wooden Loch.
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Avoid scraping close to the bead
- Don’t leave a drip for the next storm
- Inspect the sealant on glazing annually
- Run a squeegee over the glass when you’re done
Check the joints once a year. Spotting a crack early means a simpler fix.
Conservatory leaks rarely stay small. Water runs along frames and down walls, so get it looked at when you first see it.
