A strategic HVAC installation that transformed this commercial building’s energy consumption
At AirGreen, our expertise in commercial HVAC is built on a personalized approach and cutting-edge solutions tailored to the energy realities of today’s businesses. The striking example we’re sharing today involves an office building located on Montréal’s South Shore, where we carried out a complete overhaul of the heating, ventilation, and air conditioning system. The result: the client was able to cut their annual energy bill by 50% — a real, measurable, and sustainable savings.
Understanding the specific needs of an office building
When the property manager in Longueuil first contacted us, the goal was crystal clear: upgrade the aging and energy-intensive central system while ensuring optimal comfort for all tenants. After conducting a complete energy audit, we identified several critical issues:
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An outdated electric boiler over 20 years old
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A complete lack of efficient zoning
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Obsolete rooftop units with no heat recovery
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Manual, decentralized temperature controls
The challenge was to install a high-efficiency HVAC system, smart enough to adapt to fluctuating schedules and multiple occupancy zones, all while remaining fully compliant with commercial building codes.
Our solution: A centralized HVAC system with high energy efficiency
We chose to install a Bosch BOVA 2.0 Inverter central heat pump system with multi-zone configuration, combined with Goodman R-32 air handlers and a commercial-grade HRV (heat recovery ventilation) system tailored to commercial environments.
Components installed:
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2 Bosch BOVA 2.0 Inverter units (60,000 BTU each) with variable-speed compressors
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3 Goodman R-32 air handlers (36,000, 48,000, and 60,000 BTU respectively)
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Venmar AVS commercial ventilation system with integrated HRV and MERV 13 filters
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Smart thermostats connected to a centralized building management platform
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Custom zoning by floor with automatic temperature control
Thanks to this hybrid system, energy is consumed only when and where it’s needed, maintaining high efficiency even during deep freezes — a crucial advantage during Québec winters.
Installation process: coordination, precision, and flexibility
Key stages:
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Planning and energy analysis: Airflow measurement and thermal simulations by zone
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Jobsite preparation without business disruption: Installations were done during off-hours and weekends to avoid disturbing tenants
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Mechanical installation: Rooftop mounting using a crane, connection to existing ducts, fine-tuned calibration of each zone
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Commissioning and smart system setup: Integration into an online platform allowing real-time monitoring for the property manager
Challenges faced:
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Limited rooftop access due to an older building structure
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Poor insulation in certain ductwork areas, which we resolved to improve thermal efficiency
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Reconfiguration of the building’s electrical setup to accommodate the new variable-speed compressors
Results: Substantial savings and optimal comfort
Less than a year after installation, our client reported:
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A 52% reduction in heating and cooling costs, compared to the previous year
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Improved thermal comfort in all office spaces, thanks to intelligent zoning
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Noticeable noise reduction, with the new units being significantly quieter
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Fewer service calls, thanks to predictive maintenance made easy through the smart platform
Additionally, the project qualified for Hydro-Québec’s LogisVert grants, with over $8,000 in financial incentives for upgrading to energy-efficient equipment and replacing legacy CFC-based systems.
Why are these results so impressive?
Because this transformation wasn’t just about replacing machines. It was based on a deep understanding of thermal flows, occupancy patterns, and the technology best suited for a commercial environment.
Many property managers hesitate to invest in major HVAC upgrades due to upfront costs. But in this case, the return on investment was achieved in under three years, not to mention increased tenant satisfaction and property value.
The AirGreen approach: expertise, precision, and support
This project perfectly illustrates our working method at AirGreen:
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Thorough technical audits
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Objective, data-backed recommendations
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Installation by certified technicians with experience in complex commercial environments
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Post-installation support, including a personalized preventive maintenance schedule
We don’t just install machines. We optimize comfort, performance, and long-term energy efficiency in your buildings.
What you can do right now
If you manage an office building in Montréal, Laval, Longueuil, on the North Shore or South Shore, and your energy bills are out of control—or your tenants are complaining about poor comfort—then now is the time to act.
We offer free HVAC audits for commercial property owners looking to improve energy performance. Like our client on the South Shore, you could cut your energy costs in half in under 12 months.
In conclusion
Upgrading your commercial HVAC system isn’t a luxury — it’s a strategic investment. At AirGreen, we’re with you every step of the way to transform your workspace into a healthy, comfortable, and energy-efficient environment.
Book an appointment with our HVAC specialists today and join the growing number of companies investing in sustainable performance.