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September 2026
Top 5 passive fire protection companies in Canada
Of the 27 passive fire protection companies in Canada listed in the OpenFire directory in September 2026, these profiles were viewed most by people and AI assistants.
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#1
Accredited Firestop
Ottawa firestop specialist with STI- and Hilti-accredited installers.
Contractor 6–20 people 1 officeFirestopping PFP survey & inspectionOttawa, Ontario View firm -
Joint #2
Adler Construction Services
ULC Qualified Firestop Contractor across Western Canada.
Contractor 21–100 people 3 officesFirestopping Structural fire protectionCalgary, Alberta · HQ View firm -
Joint #2
Beyond Foam Insulation
Calgary-area UL Solutions Qualified Firestop Contractor.
Contractor 21–100 people 1 officeFirestopping Structural fire protectionRocky View, Alberta View firm -
Joint #4
Adler Insulation
Alberta fireproofing and firestopping contractor since 1984.
Contractor 21–100 people Est. 1984 2 officesFirestopping Structural fire protectionSherwood Park, Alberta · HQ View firm -
Joint #4
Nor-West Firestop
Dedicated British Columbia firestop contractor.
Contractor 6–20 people Est. 2020 2 officesFirestoppingLangley, British Columbia · HQ View firm -
Joint #4
REDSEAL Firestop
Okanagan firestop contractor that also builds the rated separations.
Contractor 6–20 people 1 officeCompartment walls & cavity barriers FirestoppingKelowna, British Columbia View firm
Firms are ranked by how often their OpenFire directory profile was viewed during the calendar month, by people and by AI assistants. Search-engine crawlers, other automated traffic and link previews are not counted. Firms with equal views share a rank.
A firm with offices in several countries, or working across several categories, is ranked in each of them on the same monthly total. A ranking is only published where enough firms are listed and viewed for it to be meaningful.
A ranking reflects interest in a firm's listing. It is not an endorsement, and it is not a check of a firm's competence, certification or accreditation.