HVAC TRADE · COMMERCIAL VENTILATION
Commercial ventilation built for healthy air and optimum performance
Tailor-made commercial, industrial, and mission-critical ventilation — custom ductwork, heat recovery from exhaust air, and demand-control ventilation. Fast, efficient intervention for maintenance, repairs, and adjustments to your existing systems. Quebec and the GTA.
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- Certified specialistsEngineers, technologists, and technicians — LEED, CEM, CMVP, RCx — installing and balancing ventilation across Quebec and the GTA.
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- Projects deliveredMechanical scopes — including ventilation systems — across Canadian commercial, industrial, and institutional buildings.
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- Years of HVAC expertiseCombined expertise of Kolostat and its Energy division designing and building commercial ventilation since 1927.
What we do for commercial ventilation
Sub-services under one roof
From new-construction ductwork and heat recovery from exhaust air to demand-control ventilation, balancing, and IAQ upgrades — designed in-house and installed by our experienced teams.
Heat recovery from exhaust air
Heat recovery from exhaust air — a proven measure on energy-efficiency retrofits, captured in the ÉcoPerformance eligible-measures list. Routes through our heat-recovery service line on commercial, multi-residential, and institutional projects.
Custom ductwork — designed in-house, installed by our teams
Our in-house designers create tailor-made ventilation ducts, designed specifically to meet the complex requirements of your installation. Each system is installed by our experienced teams, guaranteeing impeccable quality and optimal operation right from the start.
Demand-control ventilation (CO₂, occupancy)
Demand-dependent modulation of ventilation rates — CO₂ sensors and occupancy signals trim airflow when zones are empty or lightly occupied. A standard measure in our re-engineering scope, eligible under ÉcoPerformance.
Balancing, testing, and adjustments
Fast, efficient intervention for maintenance, repairs, and adjustments to your ventilation systems. Air balancing, flow verification, and pressure-relationship testing — on new installations and on existing systems that have drifted off design.
Indoor air quality (IAQ) upgrades
Solutions that guarantee a comfortable and healthy indoor environment. Our ventilation systems are designed to ensure optimum air quality while minimizing energy consumption — filtration upgrades, CO₂ control, and outdoor-air strategies tuned to occupancy.
Connected services
Where ventilation links up into the rest of the mechanical scope
Ventilation rarely ships alone. Most projects connect to the broader design-build, maintenance, heat-recovery, and controls scopes — same delivery team, one contract envelope.
Design-build — new-construction ventilation systems
When ventilation is part of a complete new mechanical scope, it ships under our commercial design-build contract — engineering, ductwork, fans, controls, and commissioning under one umbrella.
Preventive maintenance — filter and cleaning programs
Air handlers, rooftop units, and dampers on contract — filter and component replacement, belt and motor checks, and balancing on each visit. Cadence tailored to your asset mix.
Heat recovery — ERV/HRV ties into the energy plant
When the ventilation scope includes meaningful heat recovery, the work routes through our heat-recovery service line — exhaust-to-fresh-air energy recovery, efficiencies up to 90% on the Épicentre culturel de Laval mandate.
Controls optimization — demand-control ventilation
Demand-control ventilation only delivers if the BMS sequences let it. Our controls optimization service writes and tunes the sequences — Automated Logic / WebCTRL® — that turn CO₂ and occupancy signals into actual energy savings.
How we work
Four steps from existing-system walk to ongoing performance
Assess existing
Site walk to inventory existing fans, ducts, hoods, dampers, and controls — and to identify air-quality, pressure, or code gaps against current design intent.
Engineering proposal
In-house designers produce ductwork, equipment selection, and a written proposal with cost, schedule, and — where eligible — grant capture under ÉcoPerformance and Énergir.
Install and balance
Installation by our experienced teams, with air balancing and pressure-relationship testing — guaranteeing impeccable quality and optimal operation right from the start.
Commission + ongoing
Commissioning with documented airflow numbers, plus ongoing maintenance and BMS monitoring so the system stays at design conditions instead of drifting after handover.
Commercial ventilation FAQ
What facility directors ask before they buy ventilation work
What ventilation standards do you design to?
Our in-house designers tailor every system to the complex requirements of the installation — designed against applicable building codes and project specifications, not catalog defaults. On the Épicentre culturel de Laval project, the fresh-air heat-recovery system reached efficiencies of up to 90%.
When does an ERV or HRV make sense on a commercial project?
Whenever you have continuous outdoor-air loads and a coincident heating or cooling demand on the building — which is most commercial, multi-residential, and institutional buildings in Quebec. Energy- and heat-recovery ventilators pre-condition fresh air with the reject energy from exhaust, hitting efficiencies up to 90% on the systems we have delivered. The grant math (ÉcoPerformance) typically makes the capital case before the energy bill does.
How do you handle indoor air quality (IAQ) on retrofits?
Our ventilation systems are designed to ensure optimum air quality while minimizing energy consumption. Proven measures from our energy-efficiency scope are available where they fit the building — including heat recovery from exhaust air and demand-dependent modulation of ventilation rates (CO₂, occupancy).
Are commercial ventilation upgrades eligible for ÉcoPerformance grants?
Yes — heat recovery from exhaust air and demand-dependent modulation of ventilation rates (CO₂, occupancy) are both named in the ÉcoPerformance eligible-measures list. The program pays $125/tonne of CO₂eq saved for small/medium consumers, capped at 75% of eligible cost. Kolostat's Energy division handles the eligibility analysis, application, and post-implementation reporting alongside the mechanical work.
Request a quote
Tell us about your project
Submit right here — a Kolostat engineer will follow up to scope the work. Email or phone is required.
Get started
Have a commercial ventilation scope?
Send a quote request and a senior engineer will walk the site, scope the work, and put a number on the table — with grant capture priced in where the measure qualifies. Emergency right now? Call 24/7 dispatch.