
Fire stopping in Caol
Planning work on a service penetration in Caol? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Open linear gaps along the top of fire-resisting walls
- Service penetrations left open after M&E works
- Fire stopping installed outside its tested range
Fire stopping across Caol
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Quoting for work in Caol
There’s no standard rate for sealant work, because every site is different. What we take into account:
- The product specified
- How accessible the joints are
- The size and state of each joint
- Induction, permit and paperwork requirements
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.
Details that help us quote
Diagnosis starts before we arrive. Let us know:
- Any dates the work must fit around
- A wide shot and a close-up of the area
- Whether the building will be occupied during the work
- Specification clauses that apply
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call 01277 525 020 or email us with what you know.
About our fire stopping in Caol
Penetration seals are fire tested to BS EN 1366-3 and linear joint seals to BS EN 1366-4 and the results are classified to BS EN 13501-2. That classification, such as EI 60 or EI 120, belongs to the product in its tested arrangement. So our job is to reproduce that arrangement faithfully. The enquiries we see most involve expanding foam used as fire stopping and damaged fire seals in risers and voids, on linear gaps at wall heads, joints between fire-resisting walls and floors and service gaps in risers. Searching for sealant specialists in Caol? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Travel to smaller places like Caol is planned so every penetration is sealed on one trip. Send the specification and photos of the openings, with sizes if you have them.
We stand behind the joints we seal: 12 months, guaranteed. It covers how we prepared and applied the sealant.

- Where
- Caol (PH33)
- Wider area
- Highland
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
How the job changes by surface
Linear joints
Head-of-wall gaps, slab edges and wall junctions are linear joints. BS EN 1366-4 testing sets the joint widths, depths, backing and movement a seal covers.
Metal pipes
Copper and steel pipes are a common service penetration for fire-rated sealant. The tested detail sets the pipe size range, gap, depth and whether insulation can stay on.
After the work
For the best life from the joints:
- Keep general-purpose fillers away from compartment walls
- Have penetrations checked while they can still be seen
- File the specified details where the next contractor can find them
- Agree the fire-stopping specification before services go in
Store the specified product details somewhere the next contractor can find them. It makes later repairs much easier to match.
The simplest way to keep compartment walls intact is to plan fire stopping into every job that crosses them. That way the opening is sealed while the trade and access are still there, not months later.
What sealant work can’t fix
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Signing off or certifying a building’s fire stopping
- Fire doors, dampers or other fire safety equipment
- Deciding what a wall or floor needs, which belongs to the designer
If in doubt, call 01277 525 020 or email the details over and we will say what we think before you book.
Joints and surfaces we work on
- Linear gaps at wall heads
- Pipe penetrations
- Cable penetrations
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Service gaps in risers
Why deal with it now?
Open penetrations multiply: every new cable or pipe adds another. Keeping on top of it after each round of works keeps the job small, rather than turning into a full building survey and reseal. Around smaller places like Caol, halls, stores and seasonal buildings may not be checked often, so a failed joint has time to cause damage. Early resealing prevents it.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why clients in Caol choose us
- One contact handling all your sites
- Fully insured
- Products installed to the manufacturer’s instructions
- A Constructionline member, so easy to vet
See our cost guide and how we’re accredited.
From enquiry to sign-off
Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself typically takes longer where risers, ceiling voids or occupied floors have to be worked through in sequence, and we clear our waste as we work. For a building near Caol, directions, keys and a contact on the day are worth sorting early. That goes into the plan alongside the quote.
- First we confirm the product and tested details named in the specification.
- We sort the openings by the detail each one needs.
- Old or wrong materials are cut out.
- Where the detail needs backing, it goes in at the stated depth.
- We gun the sealant in to the specified depth around each service and tool it.
- Completed areas are checked with you, with the records agreed when we quoted.
What we need from you
- Move anything stored against the joints
- Explain the parking and delivery arrangements
- Tell staff and tenants when we will be in
Get a fixed quote
The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or give us a call on 01277 525 020 or email the details over to discuss it first.
Read more
Fire-rated sealing for Caol buildings
Scotland has its own building standards: the non-domestic Technical Handbook (clause 2.1.14) says service penetrations should be fire stopped to at least the fire resistance duration of the wall or floor, with products tested for that end use. We install fire-rated sealant to that tested detail where it is specified. A 2-mile radius around Caol takes in plenty of hotels. Bedroom-to-corridor walls in hotels are normally fire-resisting, so new cabling or pipework through them has to be sealed to the tested detail.
In a hotel such as Ben Nevis Hotel and Leisure Club, 0.9 miles south-east of Caol, new pipework or cabling through bedroom and corridor walls needs sealing with the specified product. Where a unit on an estate such as Blar Mhor Industrial Estate, which lies east of Caol, has fire-resisting walls between offices and warehouse, any new service through them should be sealed to the tested detail. At a healthcare site like Belford Hospital, 1.3 miles south of Caol, new services through compartment walls are a constant, and each needs the specified seal.
Caol is in Highland. We cover Caol and the rest of Highland, with the same fixed quotes and 12-month guarantee as everywhere else. 256 places across Highland fall within our area, including Caol. Sites around Glasgow have their own page, about 75 miles away.
We cover the PH33 postcode districts for service penetrations. We cover commercial and managed buildings on Glen Nevis Road, Camesky Road and Macquarrie Court. Nearby places we also cover include Taobh Lochaidh (1 mile east), Banbhaidh (1 mile north), Inverlochy (1 mile south), Corpach (1 mile north-west) and Fort William (2 miles south). For island and remote sites, travel and materials need planning ahead, so the full address helps from the start.
Local landmarks in Caol
In Caol, that means premises near Black Parks and Lochaber High School. Caol has its own railway station: Banavie station. A little further out are Treasures Of The Earth (1.1 miles west) and Belford Hospital (1.3 miles south).
Places near Caol
More services for Caol
Your questions answered
Is Caol too far out for you?
Not at all: smaller places are covered as well as towns. Our area covers all of Scotland, cities, towns and islands alike. Good photos up front let us bring everything on the first visit.
Is a hospital such as Belford Hospital somewhere you can work?
Yes, provided the work is planned with the site’s estates team. We follow the site’s permits, sign-in and infection-control procedures in every area.
Is your workmanship covered by a guarantee?
Yes, for 12 months. If our installation fails in that time, we return and fix it.
Can you fire stop behind the services contractors?
Yes, where there is a specification for those walls and floors. Openings left by new services are among the most common jobs we see, and we reseal them to the specified detail.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
Can you send site paperwork?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.