When winter comfort depends on choosing the right professional
In Longueuil, where winters are long, biting, and often unpredictable, a reliable heating system is far more than a luxury—it’s a necessity. Yet, far too many homeowners and property managers discover too late the consequences of entrusting their HVAC system to an unqualified installer. At AirGreen, we’ve been called in on several occasions where a poor initial choice led to major expenses, energy waste, and even health risks.
In this article, we’ll share real-life testimonials, costly mistakes to avoid, and most importantly, the professional solutions we provided to bring every system back into compliance—restoring comfort and efficiency.
A central heat pump installation gone wrong: the Normandie Street case
A retired couple contacted us after spending an entire winter with unusually high electricity bills, despite having recently installed a 3-ton central heat pump using R-410A refrigerant, handled by a contractor with no RBQ license.
Our inspection uncovered several serious issues:
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Incorrect unit sizing for the home’s heated surface area.
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No duct insulation in the attic, leading to significant heat loss.
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An outdated electric furnace left untouched and incompatible with the new unit.
The result: we had to perform a complete reinstallation, using a properly sized Bosch IDS Premium R-454B 3 Ton unit. After our work, their Hydro-Québec bill dropped by over 40%.
The hidden consequences of neglected ventilation: a Longueuil daycare under alert
In another case, a daycare was experiencing persistent allergy symptoms among children. The previous contractor had chosen to supplement baseboard heaters with an undersized air exchanger, lacking a HEPA filter and never serviced.
Our assessment revealed:
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An obsolete air exchanger not meeting current health standards.
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No cleaning in over 5 years since installation.
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High humidity levels in several enclosed rooms.
We replaced the setup with a Venmar EVO5 HRV with intelligent humidity control, and added a Fujitsu KZAH R-32 wall-mounted heat pump to ensure evenly distributed, energy-efficient, and healthier heating. Since then, respiratory symptoms have dropped by 90%.
Why do these mistakes still happen so often?
Here are the main reasons we continue to see these costly issues in the Longueuil area:
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Failure to verify the contractor’s RBQ license or TEQ/CMMTQ certifications.
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Offers that seem too good to be true, often at the expense of installation quality.
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No thermal assessment or tailored evaluation before choosing the system.
What a qualified heating contractor like AirGreen brings to the table
At AirGreen, we’ve developed a rigorous, transparent work method:
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Custom thermal evaluations of your home or commercial building.
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Recommendations for HVAC systems that truly fit, featuring trusted brands like Goodman, Bosch, Fujitsu, Gree, and Lennox.
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Certified and guaranteed installations, with follow-up service.
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Simplified support for grants and rebates, such as the LogisVert program from Hydro-Québec.
Testimonials: the AirGreen difference in our customers’ own words
“After a disastrous experience with another company from the South Shore, we contacted AirGreen. They reinstalled our 18,000 BTU Gree heat pump, and the difference is incredible. Quieter, more efficient, and finally, we’re warm at night.” – Jean and Lucie, Longueuil.
“AirGreen started from scratch, explaining every step and technical choice. We had a 2.5-ton MIDEA EVOX G3 central heat pump installed, and the team even optimized airflow across our triplex. True professional service.” – Thierry M., property manager in Longueuil.
How to avoid the pitfalls of an unqualified heating contractor in Longueuil
Here are some practical tips to help you make the right choice:
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Always ask for the RBQ license number, and verify it.
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Ask about TEQ and CMMTQ certifications.
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Require a detailed thermal evaluation before accepting any quote.
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Trust verified reviews, ideally with project photos like those on AirGreen’s website.
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Never accept a quote without a site visit.
In Longueuil, better safe than frozen
Choosing the right heating contractor is about more than buying a high-performance unit. It’s an investment in comfort, energy savings, and long-term system durability. Installation mistakes, even if invisible at first, often come back at a high cost, whether through breakdowns, repairs, or excessive energy consumption.
AirGreen, your trusted HVAC partner in Longueuil and across the South Shore
We operate with precision, transparency, and expertise in Longueuil, Boucherville, Saint-Hubert, Saint-Lambert, and all across the South Shore for both residential and commercial projects. Whether it’s replacing a furnace, installing a new heat pump, or correcting a poor previous installation, we’re here to put your comfort back in expert hands.
Still unsure? Talk to an AirGreen advisor today.
Our experts will guide you with zero pressure, offering a free evaluation and real, lasting, energy-smart solutions tailored to your situation.