Real stories from 2025: what three HVAC projects truly taught us
At AirGreen, every central heat pump project is much more than just an installation. It’s a human encounter, a technical challenge, a story of trust. In 2025, several service calls left a strong impression on us — both for their complexity and for the lessons they taught us. Here are three stories from customers in Montreal, Laval, and the South Shore, illustrating our personalized approach and unwavering commitment to high-quality HVAC service.
An undersized system in Laval: rethinking an entire HVAC installation
During a service call in February in Laval, a client who had recently had a 2.5-ton Goodman central heat pump installed was still experiencing persistent discomfort. The unit was constantly running, yet some rooms remained cold.
Full diagnostic and project realignment
After reviewing the house plans and actual heating and cooling needs, we quickly realized:
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The initial system had been poorly sized by another installer.
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The ductwork had significant static pressure losses.
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No comprehensive thermal study had ever been done.
We recommended installing a 3.5-ton Bosch BOVA central heat pump with Inverter technology, along with a complete reconfiguration of the duct network.
Result
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Comfort restored in all areas of the home.
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Energy consumption dropped by 18% according to the first utility bills.
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A grateful client, finally equipped with a system that was custom-designed and qualified for $5,600 in LogisVert grants.
An unexpected moisture issue in a condo in Longueuil
In Longueuil, a condo owner contacted us in April after noticing excessive humidity and mild mold growth near a vent. Her system — a 4-ton Lennox EL18XPV central heat pump — had been installed two years earlier.
In-depth inspection and innovative solution
Our inspection revealed:
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The supply plenum had been poorly insulated, causing condensation.
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The unit itself was functioning properly, but the mechanical installation had been botched.
We:
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Insulated and sealed the plenum using high thermal resistance materials.
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Added a central dehumidifier compatible with the existing system.
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Adjusted fan speeds through the smart thermostat to reduce condensation buildup.
Result
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Humidity stabilized around 45%.
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No new signs of mold after 60 days.
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The condo board chose AirGreen for the annual maintenance of the entire building.
The challenge of a century-old bungalow in Montreal (Rosemont)
In Montreal’s Rosemont neighbourhood, a family living in a heritage bungalow built in 1923 wanted to install a high-performance heating system — but without compromising the character of their historic home. A real challenge for many contractors… but not for us.
A custom installation with no aesthetic compromise
After a thorough technical visit, we proposed:
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A 3-ton Fujitsu Airstage central heat pump compatible with low-profile flexible ductwork.
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Use of a horizontal plenum, discreetly concealed in accessible attic spaces.
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Installation of custom-painted round diffusers, perfectly integrated into the home’s original decorative ceiling.
Result
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No architectural features were lost.
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Even heating comfort, including on the poorly insulated ground floor.
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The homeowners praised the courtesy, cleanliness, and ingenuity of our team.
What we learned from these three projects
These stories confirm that every HVAC installation is a unique project, requiring:
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A customized, technical assessment, never a one-size-fits-all approach.
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Attentive listening to the client — their constraints, budget, and expectations.
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Constant attention to detail, aesthetics, and energy performance.
They also demonstrate that true HVAC expertise isn’t just about installing a heat pump — it’s about designing a complete system that’s durable, eligible for rebates, quiet, discreet, high-performance, and above all tailored to the realities of each Quebec home.
Why choose AirGreen?
Because beyond trusted brands like Lennox, Bosch, Goodman, and Fujitsu, we focus on:
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Precise thermal assessments
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Optimal sizing
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Maximized eligibility for government grants
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Clean, code-compliant installations by certified technicians
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Responsive after-sales service
And most of all, because we understand the specific characteristics of buildings in Montreal, Laval, Longueuil, the North Shore, and the South Shore — whether it’s a triplex in Villeray, a condo in Brossard, or a century-old bungalow.