Renovating a historical building in the heart of Montréal without compromising its aesthetics while integrating a modern and efficient air conditioning solution is no easy task. At AirGreen, we rose to the challenge with precision, expertise, and deep respect for architectural heritage. This case study highlights our recent wall-mounted air conditioner installation in a heritage building in Plateau-Mont-Royal, showcasing our ability to deliver HVAC solutions tailored to even the most complex constraints.
A Delicate Project: Preserving History While Modernizing Comfort
The building in question, a triplex dating back to the late 19th century, is classified as a heritage property by the City of Montréal. Its original moldings, red brick façade, and arched wooden windows were features to be preserved at all costs.
But behind this historical charm was a real need for modern thermal comfort. The owner wanted to provide tenants with a cool, comfortable indoor environment in the summer, without relying on noisy or visually intrusive systems, and while complying with the city's heritage preservation rules.
Strategic Choice of Equipment: Fujitsu KZAH R-32
For this project, we chose the Fujitsu KZAH R-32 wall-mounted heat pump – 12,000 BTU. This model was selected for several key reasons:
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Compact, discreet design, ideal for installations in design-sensitive environments.
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Inverter technology, ensuring quiet operation and optimal energy efficiency.
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R-32 refrigerant, more environmentally friendly and compliant with new ecological standards.
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Eligible for a $1,327 LogisVert grant from Hydro-Québec, helping the property owner reduce upfront costs.
On-Site Technical Challenges
Limited Access for the Outdoor Unit
Access to the building’s backyard was limited due to a narrow alley. We used a manual lift cart to transport the outdoor unit without damaging the ground or disturbing the neighbors. This method respected both safety standards and neighborhood tranquility.
Indoor Installation Without Visual Impact
The interior of the main apartment featured original plaster walls. We performed precise drilling with direct dust suction, avoiding any damage to the historic wall surfaces. The PVC drainpipe was carefully hidden behind a wood panel matched to the wall’s tone, thus preserving the interior’s visual integrity.
Customer Approach: Listening, Transparency, and Support
Even before proposing a solution, our team took the time to evaluate the client's expectations, conduct a detailed site inspection, and review municipal regulations regarding heritage building renovations. We also prepared a complete grant application file to simplify the owner’s administrative process.
The installation was completed in under one day, minimizing disruption for tenants and avoiding any interruption of services.
A Result That Exceeded Expectations
The owner confirmed that tenants immediately noticed a significant improvement in thermal comfort, without any visible presence of the unit. Outdoor noise was measured at less than 48 dB, comparable to a soft conversation – an important factor in a residential alley.
All this was achieved without any visible structural modifications from the street, allowing the building’s architectural integrity and heritage classification to remain fully intact.
Why Trust AirGreen for Your Sensitive Projects?
Expertise in Heritage-Constrained Buildings
At AirGreen, we’ve developed unique expertise in sensitive HVAC installations, especially in contexts where aesthetics and compliance are paramount.
Concrete Field Experience in Montréal, Laval, Longueuil, South Shore and North Shore
This project is not an isolated case. We’ve already completed similar installations in Outremont, Vieux-Longueuil, Laval-sur-le-Lac, and Saint-Lambert, where discretion, performance, and regulatory compliance were essential.
Custom Solutions for Every Configuration
No two installations are the same. We always adapt our approach based on the building type, budget, and specific technical requirements. Whether for a modern condo or a century-old home, we provide the ideal HVAC solution.
Practical Advice for Owners of Heritage Buildings
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Avoid window units: noisy, inefficient, and often banned in heritage areas.
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Choose a sleek wall-mounted model, like the Fujitsu KZAH, which blends seamlessly into older décors.
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Work with a certified installer familiar with local heritage preservation regulations.
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Take advantage of available grants like LogisVert to reduce installation costs.
Client Testimonial
"We wanted to modernize the comfort of our tenants while respecting the building’s history. AirGreen understood our vision, proposed the right solution, and delivered an impeccable result. We recommend them without hesitation." – Owner, Plateau-Mont-Royal
Conclusion
This project to modernize air conditioning in a heritage building in Montréal perfectly illustrates our know-how at AirGreen. Thanks to our advanced expertise, personalized approach, and high-performance products, we turn constraints into opportunities, delivering long-lasting, discreet comfort that respects the value of heritage.
For all your HVAC projects, even the most delicate ones, trust AirGreen – your local partner in Montréal, Laval, Longueuil, the North Shore and the South Shore.