A concrete example of optimizing indoor comfort in a professional space in Longueuil thanks to a custom AirGreen installation
In a professional environment, thermal comfort is far more than a luxury—it becomes a matter of productivity, employee well-being, and brand image for visiting clients. With that in mind, our AirGreen team was recently contacted by a legal services firm based in Longueuil facing a classic but critical challenge: poorly controlled climate across the office, with some areas too hot or too cold, excessive energy use, and an old, inefficient HVAC system.
To address these issues, we recommended and installed a high-performance multi-zone heat pump system, perfectly adapted to the building’s architecture and the needs of its occupants.
Needs analysis: a professional building with complex constraints
The building, located on Roland-Therrien Boulevard in Longueuil, spans two floors and includes seven private offices, a conference room, a reception area, a kitchen, and several walkways. The main issue: an outdated electric heating system combined with a few standalone wall-mounted AC units. The result was constant thermal imbalance, frequent employee complaints, and rising electricity bills.
The energy audit conducted by our team revealed that rooms facing south overheated in the summer, while north-facing areas lacked sufficient heat during winter. Installing a multi-zone heat pump system quickly emerged as the ideal solution.
Equipment selection: a Fujitsu multi-zone heat pump to meet high expectations
To meet both comfort and energy efficiency needs, we recommended a Fujitsu multi-zone system with a 36,000 BTU outdoor unit connected to four 9,000 BTU indoor wall units and two 12,000 BTU units for larger spaces.
Why Fujitsu? Because the brand is known for:
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Outstanding energy efficiency (SEER over 20 and HSPF over 10),
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Compliance with the latest environmental standards, including the use of R-32 refrigerant,
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Proven reliability in Quebec’s climate,
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And most importantly, the flexibility offered by multi-zone systems.
This model, in particular, allows for independent control of each room via individual wall-mounted remotes, with the added convenience of mobile app control.
Installation process: precision, discretion, and efficiency
The installation took place over three days without disrupting the firm’s operations. Our AirGreen team scheduled the work outside peak business hours and used discreet technical pathways to minimize the visual impact of the refrigerant piping and electrical connections.
One specific challenge was routing the pipes to the second floor without affecting the aesthetics of the recently renovated walls. To solve this, our lead technician designed a vertical route hidden behind an existing partition, complete with professional-grade finishing. These kinds of customized solutions make all the difference in a commercial setting.
Immediate results: stable thermal comfort, reduced consumption, happy employees
Just days after commissioning, employee feedback was unanimous. Thermal comfort had stabilized across the entire building, in both summer and winter. North-facing offices were no longer freezing in January, and south-facing ones stayed cool even during July heatwaves.
The office owner told us that electricity bills dropped by more than 30% compared to the same period the previous year. Moreover, the sleek aesthetics of the Fujitsu wall units received praise from clients, who appreciated the unobtrusive design.
Grant eligibility: a LogisVert-eligible installation
A major advantage for our client was eligibility for Hydro-Québec’s LogisVert program, which offers grants of up to $2,500 for the installation of energy-efficient multi-zone heat pumps. Thanks to our administrative support, the client was able to benefit from this financial aid quickly and without hassle.
Why choose AirGreen for your HVAC project in Longueuil?
At AirGreen, we don’t just sell and install systems. We design smart, customized solutions, perfectly aligned with the architectural, financial, and human realities of every client. Our experience in HVAC projects throughout Longueuil, Montreal, Laval, the South Shore, and the North Shore allows us to deliver services with full mastery of local standards, climate needs, and available government incentives.
Each project is an opportunity to demonstrate our precision, technical know-how, and active listening. That’s how we transformed this once-uncomfortable office into a professional space that’s pleasant, energy-efficient, and more valuable.
Practical advice for businesses considering a multi-zone heat pump
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Evaluate room-by-room needs to correctly size the units.
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Choose a system with independent controls to maximize personal comfort.
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Go for a brand proven in Quebec’s climate, like Fujitsu, Gree, or Mitsubishi.
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Ensure installation is carried out by a certified contractor like AirGreen to comply with standards and maintain warranties.
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Check eligibility for provincial and municipal grants, which can significantly lower installation costs.
Conclusion: a sustainable and profitable investment
This Longueuil project perfectly illustrates how a well-planned HVAC installation, with a quality multi-zone heat pump, can revolutionize daily professional life. Whether for office buildings, clinics, or other commercial spaces, AirGreen supports you at every stage—from planning to commissioning.
Your comfort is our mission, and your satisfaction is our priority.