Highland · Scotland
Fire Rated Sealant in Canisbay
Intumescent and fire-rated sealant around gaps, frames and service penetrations for Canisbay, backed by a one-year guarantee. Ask us for a quote.
- Gaps where walls meet ceilings or slabs
- Fire stopping disturbed by later work
- Gaps around pipes and cables through fire-resisting walls
Honest limits
It helps to know what we cannot do:
- Certifying a building or signing off its fire safety
- Problems with the door itself rather than the gap around the frame
- A wall that isn’t a fire-resisting element to begin with
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
What we seal
- Service penetrations
- Flats & HMOs
- Door frames
- Linear gaps
- Pipe & cable gaps
- Plasterboard & masonry
About our fire rated sealant in Canisbay
In flats, HMOs, offices and schools, fire stopping is often disturbed by later work. A new cable run or a replaced pipe can leave an open hole behind. We seal them with a product tested for that kind of gap. If you have ordinary sealant used where a fire-rated product was needed and damaged fire sealant left by other trades, we can put it right, on flats & HMOs, pipe & cable gaps and door frames alike.
Commercial work around smaller Scottish places tends to mean hotels, guest houses, schools and halls rather than offices. All of them have washrooms, kitchens and fire-rated joints that need looking after.
A one-year guarantee comes as standard, so you are covered after we’ve gone.

- Location
- Canisbay (KW1)
- Region
- Highland
- Cover
- One year on every job
- Quote
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Surface by surface
Service penetrations
Service penetrations are where new gaps often appear. We clean out what’s there and reseal to the right depth with backing where the detail needs it.
Door frames
The gap between a door frame and the wall around it needs sealing as well as the door itself. We fill it with a fire-rated product suited to the materials either side.
Workplaces and buildings in Canisbay
If you run a hotel, guest house or holiday let in a coastal place like Canisbay, busy months put washrooms and kitchens under pressure, so it’s worth checking the sealant before the busiest weeks. Scotland has its own building regulations, the Building (Scotland) Regulations, with technical handbooks. Fire-rated sealant is installed to the manufacturer’s tested details; we don’t certify buildings or carry out fire risk assessments.
Community buildings like Canisbay Parish Church are part of the picture too: older buildings that have had new heating or wiring often have service gaps worth checking.
Canisbay is about 15 miles east of Thurso, in Highland. Canisbay gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our Highland coverage runs to 253 places, Canisbay among them.
Work in KW1 works the same way as everywhere else we cover. Other places close to Canisbay include Rattar (5 miles west), Scarfskerry (6 miles west), Keiss (7 miles south), Dunnet (8 miles west) and Brough (9 miles west). We also work in nearby towns such as Thurso (15 miles west), Wick (13 miles south) and Castletown (10 miles west). If you’re somewhere remote, the job takes a little more planning, so mention it when you ask for a quote.
Near you in Canisbay
Well-known places in the area include Castle of Mey (3.8 miles west) and The Last House Museum & Gift Shop (1.9 miles east). For a walk, there’s Loch of Mey and Cairn Hill.
Common problems we fix in Canisbay
Much fire stopping is hidden: above ceilings, inside risers and behind panels. Because nobody sees it, gaps go unnoticed until an assessor or surveyor looks.
The most common problems we see are:
- New service routes left unsealed after building work
- Joints picked up in a fire-stopping survey
- Standard silicone or caulk in a fire-stopping gap
- Unsealed gaps where pipes and cables go through a wall
Around Canisbay, as everywhere, fire rated sealant is only as good as the preparation behind it.
What your quote should include
- What happens if they find a problem under the old sealant
- How the surfaces are prepared before sealing
- What product goes in the joint
- Which colour the sealant will be
Your questions about fire rated sealant in Canisbay
Is Canisbay in your area for fire rated sealant?
Yes, Canisbay is within the area we cover. We work across all of Scotland. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear quote.
Do Scottish building rules affect fire-rated sealant work in Canisbay?
Scotland has its own building regulations, the Building (Scotland) Regulations, with their own technical handbooks. Whatever the rules, fire-rated sealant has to be installed to the manufacturer’s tested details, and that’s how we fit it. We do not certify buildings or carry out fire risk assessments, so your fire risk assessor or building control will advise on what’s needed.
Can you tell me how many minutes the seal will last?
Ratings and certificates are not something we issue. What’s required is set by your assessor or designer, and the product’s tested details show what it achieves, and we install to them.
Do you seal gaps around fire door frames?
Yes. We often seal open gaps hidden behind the architrave. Doors, seals and closers need a door specialist.
Can you match the sealant colour?
Usually, yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before any work starts.
Can ordinary silicone be used in a fire-stopping gap?
No. A gap that needs fire stopping needs a tested fire-rated product.
Is there any odour?
Possibly a little. It fades as the sealant cures.
How long does the job take?
That depends on how much there is to do, but as a guide it takes a few hours for a handful of gaps, and longer for a whole building. We will tell you when we quote.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Flag any open gap you spot round a pipe or cable
- Check whether a sealant can be painted before decorating over it
- Tell trades working in the building that fire seals must be put back
- Store the list of sealed gaps with your building paperwork
Tell other trades that the gaps have been sealed, and ask them to reseal anything they cut through. Later work is a common cause of damaged fire stopping.
Small gaps around services are simple to deal with while there are only a few. Over time, more work adds more holes and the list grows.
Quotes for fire rated sealant in Canisbay
Your quote is based on your job. We look at:
- How much there is to do
- Whether there’s mould to deal with
- The old material and how stubborn it is
- The product the joint needs
What it costs depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
Photos help, but a description is a good start. Try to tell us:
- The problem you’ve noticed
- Pictures of the joints, sent by email
- The rough size of the job
- Whether it’s a home or a business
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we will take it from there.
What happens on the day
There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes from a few hours to a few days, depending on the number of gaps and the access for a typical job. Outdoor work around Canisbay depends on the weather, as sealant needs a dry surface, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- We start with the survey or action list, checking the size and surfaces of every gap.
- Old or unsuitable sealant is cut out and the gap cleaned.
- We put in whatever backing or fill the product detail specifies.
- Fire-rated or intumescent sealant is applied to the right depth and tooled.
- Finally, we list where we worked and what we used, for your records.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
