The Mastic Doctor team standing beside their branded vans outside an office building
Highland · Scotland

Fire stopping in Carbost

Our CSCS-carded applicators take on fire-rated and intumescent sealing of service penetrations and linear gaps in Carbost and the surrounding area. Send details for a fixed quote.

  • Seals disturbed by maintenance and left open
  • Non-fire-rated filler around services
  • Fire stopping installed outside its tested range
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Fire stopping in Carbost

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

About our fire stopping in Carbost

No fire sealant works on its own: the evidence covers a specific product, wall or floor type, service, gap, depth and backing. Before we seal anything, we check the opening against the detail it is meant to follow, and raise it with you if it falls outside. If you’re dealing with damaged fire seals in risers and voids and non-fire-rated filler around services, we can help, on small duct penetrations where the tested detail allows, pipe penetrations and service gaps in risers alike. For commercial sealant work in Carbost, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.

Around smaller places such as Carbost, compartment walls and floors tend to be in schools, hotels, care homes and community buildings. Those penetrations are closed with the product the specification names, built up as tested.

Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Carbost (IV47)
Region
Highland
Guarantee
12 months on every job
Price
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

Where services cross fire walls in Carbost

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, using products tested for the way they’re used. Where fire-rated sealant is specified, that’s what we install, to the tested detail.

Buildings near Carbost get the fire-rated product that’s specified, installed to its tested detail.

Carbost is in Highland. We cover commercial sites throughout Carbost, whether it’s a single job or part of a planned programme. Carbost is one of 256 places we cover in Highland for service penetrations.

Work on service penetrations is covered throughout IV47, whatever the building. If your site is on Pairc Uilleim and Steele Croft Road or close by, we can quote for service penetrations. Access to Carbost is via the B8009. Just outside Carbost, we also work in Coillore (4 miles north-west), An t-Ollach (9 miles north-east), Portree (10 miles north-east), Lonmore (11 miles north-west) and An t-Aodann Ban (12 miles north). Where a site is remote or on an island, we plan travel and materials carefully, so the full address helps from the start.

What’s near Carbost

Green spaces nearby include Beinn a' Bhràghad and Loch Fada.

Map of Carbost © OpenStreetMap contributors

Looking after the joints

Problems stay small when the joints are checked regularly. Specifically:

  • Report damaged or disturbed seals as soon as they’re spotted
  • Keep product data and details in the fire safety file
  • Leave fire sealant to cure fully before covering it
  • Brief every trade that openings they make must be sealed

Never top up a fire seal with foam, ordinary silicone or filler. Repairs need the same product and detail as the original unless the designer specifies otherwise.

A simple record of seal locations and products helps. It tells the next contractor exactly what to reinstate, and it helps at inspections.

Why it’s worth doing now in Carbost

An improvised seal can look finished while offering no tested performance. Correcting it means cutting it out and starting again with the specified product. Around smaller places like Carbost, halls, stores and seasonal buildings may not be checked often, so a failed joint has time to cause damage. Early resealing prevents it.

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.

What you get with us

  • Workmanship guaranteed for 12 months
  • Sealing commercial buildings since 2005
  • Constructionline member
  • One number for every site we cover

Take a look at what affects the cost and our accreditations and insurance.

For managing agents and facilities managers

Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Carbost. One quote can cover more than one site, which keeps the paperwork simple.

Questions we’re asked in Carbost

How do the Scottish rules apply to fire-rated sealing in Carbost?

Scotland’s non-domestic Technical Handbook covers it in clause 2.1.14: penetrations keep at least the element’s fire resistance duration, with products tested for their end use. We install what has been specified, to the manufacturer’s tested detail, while design and approval sit with the designer and the verifier.

Is Carbost too far out for you?

No. Places such as Carbost are covered as much as the big towns. Every Scottish council area is within our area. Good photographs up front let us bring everything on the first visit.

Do you hold CHAS accreditation?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.

What hours do you work?

Mention the site’s hours and access windows in your enquiry, and we’ll schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.

Is your workmanship covered by a guarantee?

Yes. Our workmanship is backed for 12 months on every job.

Who decides which product is used?

If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

What if there’s asbestos in the old mastic?

Asbestos is possible in some older mastics, particularly in buildings from before 2000. Before we disturb old sealant in an older building, we ask to see the asbestos register or survey, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.

Common problems we fix in Carbost

Most open service penetrations are left by later work. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser leaves an opening that nobody returns to. Across several fit-outs, the openings add up.

These are often picked up first by site or facilities staff:

  • Open linear gaps along the top of fire-resisting walls
  • Unsealed penetrations discovered above suspended ceilings
  • Seals disturbed by maintenance and left open
  • Non-fire-rated filler around services

Around Carbost, fire-stopping design belongs to the designer and building control; installation to the specification is our part.

What to look for in a quote

  • Do they follow the manufacturer’s priming guidance?
  • Will CSCS-carded applicators be on site?
  • How long is the guarantee, and what does it include?
  • How joint depth will be controlled

Questions to ask before you appoint anyone

What the job involves on each surface

Metal pipes

Copper and steel pipes are a common service penetration for fire-rated sealant. Pipe diameter, annular gap, sealant depth and any pipe insulation all have to match the detail, so we check each one.

Drylining partitions

Holes in board are often cut larger than needed. An oversized hole may be outside the sealant’s range, and the detail may call for board patching or another product.

How a job runs

Working in a building that stays open takes some planning. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. For a building near Carbost, directions, keys and a contact on the day are worth sorting early. We’ll confirm the plan with the fixed quote.

  1. We read the specification, drawings or penetration schedule you send.
  2. On site, each opening is checked against the tested detail it is meant to follow.
  3. Unsuitable fillers and loose debris are taken out of each opening.
  4. Mineral wool or other backing goes in wherever the detail asks.
  5. We apply the specified sealant to the depth and around the services as the detail shows.
  6. Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.

Preparing the site

  • Warn occupants and staff about the work
  • Move anything stored against the joints
  • Tell us what induction or permit system the site runs

Request a quote

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.

Ask for a quote

Advice

Accreditations

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