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Calfeutrage Prospect — Firestop specialist Member of the FCIA, the Firestop Contractors International Association Hilti Accredited Firestop Specialty Contractor icon
Since 2006

Firestopping
specialistsand caulking contractor in Montréal and across Québec

Passive fire compartmentation since 2010, architectural caulking and control joints. Safe buildings, one joint at a time.

Request a quote Our firestop method
CHUM – Phase 2 construction site, a Calfeutrage Prospect project
CHUM – Phase 2 · Passive fire compartmentation
2006
Company founded
2010
Firestopping specialization
RBQ
Licence RBQ : 5731-9162-01

FCIA member since 2020

The international association of firestop specialty contractors.

Installers trained in the Hilti and 3M manufacturer programs

A Hilti Accredited Firestop Specialty Contractor

Calfeutrage Prospect – A Hilti Accredited Firestop Specialty Contractor, since 2025.

Certified Mixité en chantier 2025

Recognition awarded by the ACQ, ACRGTQ, APCHQ, CMEQ and CMMTQ to employers who integrate women on their job sites.

Proud BOMA Québec member since 2026

The Québec association of commercial and institutional building owners and managers.

I am a General contractor Bids from drawings and specifications, listed systems matched to each configuration. Send my drawings → I am a Trade contractor Firestopping and caulking subcontracting for masons, mechanical, electrical and other trades. Request a price → I am a Manager or owner Deficiency surveys, firestop code compliance, caulking restoration. Schedule a visit →
Services

Three specialties, one standard.

Commercial, institutional, industrial and residential, in Montréal, Laval, the North Shore, the South Shore and across Québec.

Specialty

Firestop systems

Passive fire compartmentation (Section 07 84 00): sealing of penetrations and joints in fire separations with UL/ULC listed systems.

Learn more →
Firestop method

A rigorous firestop method, from survey to report.

Firestop sealing of an opening crossed by plumbing pipes Firestop wrap around a ventilation duct Firestop joint at the base of a bank of electrical conduits Firestop sealant around cables and electrical conduits
  1. 01

    Survey

    Survey of penetrations and joints.

  2. 02

    Analysis

    Analysis of issues on the drawings, from the design stage.

  3. 03

    Selection

    Selection of listed systems and engineering judgments.

  4. 04

    Installation

    By our installers, accredited by the manufacturers.

  5. 05

    Report

    When required, a photo report with labelling of penetrations.

Projects

Our projects

CHUM – Phase 2, a Calfeutrage Prospect project
Firestopping · Healthcare

CHUM – Phase 2In collaboration with Pomerleau

Hôpital de Vaudreuil‑Soulanges, a Calfeutrage Prospect project
Firestopping · Healthcare

Hôpital de Vaudreuil‑Soulanges

Place Banque Nationale, Montréal, a Calfeutrage Prospect project
Firestopping · Commercial

Place Banque Nationale, Montréal

Complexe des sciences, Montréal, a Calfeutrage Prospect project
Firestopping · Education

Complexe des sciences, Montréal

SDA – Quartier Maritime, Rimouski, a Calfeutrage Prospect project
Architectural caulking

SDA – Quartier Maritime, Rimouski

Le Sherbrooke, Montréal, a Calfeutrage Prospect project
Architectural caulking · Residential

Le Sherbrooke, Montréal

Jean‑R.‑Marcotte wastewater treatment plant, a Calfeutrage Prospect project
Firestopping · Infrastructure

Jean‑R.‑Marcotte wastewater treatment plant

Réseau express métropolitain (REM), a Calfeutrage Prospect project
16stations
Firestopping · Architectural caulking · Transportation

Réseau express métropolitain (REM)

Oratoire Saint-Joseph, Montréal, a Calfeutrage Prospect project
Architectural caulking · Heritage

Oratoire Saint-Joseph, Montréal

See more projects →
Our team

Firestop specialists, from the office to the job site.

A stable, experienced team, from bid to inspection. On site, our superintendent and foremen average more than 8 years in firestopping, and our installers are trained in the Hilti and 3M manufacturer programs. Clean, compliant work, ready for inspection.

Jonathan Dufresne

Jonathan Dufresne

President

Jonathan brings innovative solutions that move the company forward and change how your projects are delivered. An experienced manager on large-scale projects, he focuses on human capital performance: well-trained, engaged and efficient teams. He holds a B.B.A. and an M.Sc. in business intelligence from Université de Sherbrooke.

Mickael Morin, ing.

Mickael Morin, ing.

Vice-President

Mickael follows your projects from start-up to delivery: crew planning, site coordination, progress and documentation. A civil engineering graduate of Polytechnique Montréal, he leads the company’s projects and brings solid construction project management experience to every mandate.

Sébastien Julien

Sébastien Julien

Director, Business Development

Attentive to your needs, Sébastien understands your drawings and constraints from the first call. With 15 years in building envelope, sealants and waterproofing as a regional sales director and technical specialist with manufacturers, he proposes the right solution for every project.

Looking for a job

We are hiring.

Caulkers and firestop installers: send your résumé to info@calfeutrageprospect.com.