Highland · Scotland
Glazing & conservatory sealant in Charlestown, Highland
Glazing silicone across Charlestown and nearby, with old sealant always removed completely and a 12-month guarantee.
- Glazing silicone that has cracked or come away
- Glass-to-glass joints that have split
- Mouldy sealant around glass panels
Windows and doors in Charlestown
Charlestown is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on glazing joints and frame seals, which can dry out and crack sooner where a building faces the weather. With historic houses such as Old Allangrange House (about 2.5 miles north-west) nearby, there’s older building stock in the area around Charlestown as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Inverness High School, the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Inverness station, a shower screen or conservatory joint that leaks is easier to reseal while the property is empty.
Charlestown is about 3 miles north-west of Inverness, in Highland. Wherever you are in the IV1 postcode area, we cover glazing silicone for homes and businesses. Our Highland coverage runs to 253 places, Charlestown among them.
Jobs for glazing silicone in IV1 is quoted and booked the same way as anywhere else. If you need glazing silicone at a property on Main Street, Oakleigh Road and Bellfield Road or anywhere close by, our applicators can take on the job. Close by, we work in North Kessock (1 mile north-west), Merkinch (1 mile south), Longman (2 miles south-east), Leachkin (2 miles south) and Millburn (2 miles south-east). We also work in nearby towns such as Inverness (3 miles south-east), Nairn (15 miles east), Cradlehall (5 miles east), Dingwall (9 miles north-west), Hilton (3 miles south-east) and Alness (13 miles north). If you’re somewhere remote, a little more planning is needed.
Near you in Charlestown
The nearest railway station is Inverness station, roughly 2 miles south-east. Well-known places in the area include Eastgate Shopping Centre (2.1 miles south-east) and Clan Maclennan Museum (1.3 miles north). Not far away are Ord Hill.
How we handle glazing silicone in Charlestown
We work across Charlestown on glazing joints for homes and businesses. From conservatories to shower screens, it’s the same careful method. If you have cracked silicone between glass panels and new silicone smeared over old sealant, we can help, on glass-to-frame joints, glass balustrade bases and glass-to-glass joints alike.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
You are covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.

- Place
- Charlestown (IV1)
- Region
- Highland
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
What else we do in Charlestown
FAQs for Charlestown
I let a flat near Inverness station. Can you help?
Yes, landlords and agents are among the people we work for. You can drop us a line at info@mrmastic.co.uk with the details for a clear quote.
Is glazing silicone in a coastal place like Charlestown any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme.
Which silicone is used for glass joints?
We pick a glazing silicone to suit the materials. Neutral-cure products suit most glass and frames.
Is it enough to run a bead over the old sealant?
Many leaks we see come from exactly that. We remove the old silicone, clean the joint and reseal.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages to suit the site.
Leave it or put it right?
Glazing joints need a sealant made for the job. A general-purpose tube may not bond well or may react with the frame so we choose a glazing silicone instead. 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.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
Why choose Mr Mastic in Charlestown
- Anti-fungal silicone where joints get wet
- We agree the colour with you first
- Sealant colour chosen to suit
- A choice of colours where the product allows
Read our cost guide and what customers say.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Ventilate the conservatory to cut condensation
- Clean glass with a mild cleaner and a soft cloth
- Squeegee the shower screen after each use
- Keep conservatory gutters clear of leaves
Squeegee a shower screen after each shower and keep the room ventilated. That slows mould growth on the bead.
Conservatory leaks rarely stay small. Water travels along the frame and into the wall so it’s best dealt with straight away.
When to call us in Charlestown
Glass and frames expand and contract with the temperature, and they don’t move by the same amount. In time, the sealant splits or pulls away.
Most people get in touch when they notice one of these:
- New silicone smeared over old sealant
- Leaking glazing joints on a rooflight
- Shower screens leaking along the wall or tray
- Water running down inside the glass
Historic houses such as Old Allangrange House, about 2.5 miles north-west, show how far back building around Charlestown goes.
What to look for in a quote
- What happens if they find a problem under the old sealant
- Whether you can choose the colour
- How long to leave it before use
- Is VAT in the price?
What affects the cost of glazing silicone
There’s no set price list. What we look at:
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- The number and length of the joints
- The number of rooms or windows
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- Roughly how big the job is
- Where the property is
- Whether it has been sealed before
- Photos by email, if that’s easy
For a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll send you a clear quote before any work starts.
The process
We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours, depending on how many joints need doing. For a place like Charlestown, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.
- We find where water is getting in and check whether it’s a sealant joint.
- Old silicone is cut away from the glass and frame without scratching either.
- The glass and frame are cleaned and degreased.
- We apply a neutral-cure glazing silicone and tool it smooth.
- The finished joints are checked and, where it’s safe, tested with water.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Mention any tricky access
- Mention if the joints have been sealed before
Get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
Read more
How the job changes by surface
Glass-to-glass joints
You see these joints clearly, so we take care to leave a neat bead.
Shower screens
Mouldy or lifting sealant on a screen leaks. Cutting it out and resealing fixes it.
