Creating a comfortable work environment isn’t just about well-being — it’s a direct lever for performance. In Montréal, where summers can be just as sweltering as winters are harsh, installing an efficient wall-mounted air conditioner becomes a strategic decision for office managers who care about their team’s comfort. In this article, we share an exclusive case study carried out by AirGreen, a company specialized in HVAC installation in Montréal, illustrating how a well-chosen and properly installed wall-mounted air conditioner can transform the dynamics of a workspace.
A Montréal company in search of performance and comfort
In the heart of the Plateau-Mont-Royal district, a graphic design firm with a dozen employees contacted AirGreen to improve the thermal comfort of their premises. The main issue: frequent heat spikes in the afternoons during summer, leading to a noticeable drop in employee focus and productivity.
Old portable systems were no longer sufficient. The client was looking for an effective, quiet, energy-efficient, and most importantly, visually discreet solution to preserve the modern interior design of the office.
The strategic choice: a FUJITSU KGL 18,000 BTU wall-mounted air conditioner
After an on-site visit and a comprehensive thermal evaluation, our team recommended installing a FUJITSU KGL 18,000 BTU wall-mounted air conditioner, perfectly suited for the size of the main office (around 90 m²). This model stands out for:
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High energy efficiency (SEER of 26.5)
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Ultra-quiet operation (under 23 dB in low-speed mode)
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Eligibility for Hydro-Québec’s LogisVert subsidies
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A compact, sleek design that fits well in a professional setting
The office was located on the second floor of a century-old building, with no mechanical room or the ability to install a central system. Choosing a wall-mounted air conditioner was therefore the best HVAC option in terms of performance, flexibility, and installation speed.
Technical challenges encountered during installation
Even though installing a wall-mounted air conditioner might seem simple at first glance, several specific challenges arose:
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Limited access to the exterior façade for mounting the outdoor unit
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Compliance with architectural constraints imposed by the Plateau-Mont-Royal borough
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Managing wiring through thick load-bearing walls, typical of older Montréal buildings
Our technicians implemented a custom solution, using discreet ducts painted to match and installing the outdoor unit on a wall-mount anti-vibration bracket specially designed to preserve the building’s structure and neighborhood peace.
Results observed after installation
Three months after installation, the client reached out to share detailed feedback. The results speak for themselves:
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Productivity improved by an estimated 18% during summer afternoons, thanks to better focus and enhanced comfort
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Reduced breaks due to thermal discomfort (fewer complaints, less fatigue)
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Creativity boosted, according to HR managers, directly linked to a more stable indoor climate
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Energy bill savings of about 25%, compared to the previous portable system and electric fans
The FUJITSU KGL wall-mounted air conditioner not only helped increase work efficiency, but also enhanced the overall office environment for employees, boosting satisfaction and engagement.
Why wall-mounted air conditioners are ideal for Montréal offices
Adaptability to older buildings
Many office spaces in Montréal, Laval, Longueuil, the North Shore and South Shore are housed in existing buildings with no central HVAC infrastructure. Wall-mounted air conditioners are a perfect solution due to their compact size and flexible installation.
Quiet performance
In a work context, silence is golden. Models like the FUJITSU KGL offer nearly silent operation — essential for environments that require concentration.
Subsidy eligibility
AirGreen supports its clients in obtaining LogisVert subsidies, which can significantly reduce the net installation cost. In this project, the client received a $1,704 subsidy, greatly improving their return on investment.
Practical tips for office managers
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Have your space’s thermal load properly evaluated before choosing a unit
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Prioritize reputable brands like Fujitsu, Gree, Daikin or Sharp, known for reliability in cold climates
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Choose professional installation: system performance depends as much on the product as on how it's installed
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Think about regular maintenance: a poorly maintained wall-mounted air conditioner can lose up to 20% of its annual efficiency
AirGreen: your HVAC partner for professional spaces
At AirGreen, we understand that every space is unique. That’s why we offer custom HVAC solutions, taking into account the architectural, technical, and human aspects of each project. Our certified technicians install every system with precision, discretion, and efficiency, throughout Montréal, the North Shore, the South Shore, Laval, and Longueuil.
Our service doesn’t stop at installation: we also provide preventive maintenance, emergency repairs, and full management of available subsidies so you can focus on what matters most — growing your business.
Conclusion
The experience of this Montréal office clearly shows the real, measurable impact of a well-chosen, professionally installed wall-mounted air conditioner. Thanks to AirGreen’s expertise, this workspace has become more pleasant, more productive, and more energy-efficient.
Thinking of improving your professional workspace comfort? Contact us today for a free evaluation. At AirGreen, we have one mission: to offer you the very best in HVAC, with professionalism and commitment.