Real Testimonials: The Telltale Signs of an Unreliable Wall-Mounted Heat Pump Installer
In the residential HVAC world, choosing the right installer for your wall-mounted heat pump can mean the difference between a high-performing, long-lasting system and one that causes constant frustration. At AirGreen, we’re often called in to fix botched installations done by careless or unqualified companies. Based on real customer testimonials from Montréal, Laval, Longueuil, the North Shore, and the South Shore, we’re sharing the most common red flags that indicate you’re dealing with an installer to avoid.
A vague or unclear quote: the first red flag
One of the most frequent issues brought up by dissatisfied clients is the lack of a clear quote. A trustworthy installer should always provide a detailed estimate outlining:
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The exact brand and model of the wall-mounted heat pump being proposed (e.g., Gree Lomo, Fujitsu KZAH, Midea25)
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The BTU capacity, matched to the size of the home
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The projected timeline and applicable warranties
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Eligibility for grants like Hydro-Québec’s LogisVert program
A client from Longueuil told us: “They proposed a heat pump but never explained the brand or whether it qualified for grants. A week later, the price changed.” The result: a rushed install, an ill-suited model, and zero grant support.
No permit or RBQ certification
Another major issue involves whether the installer is legally certified. In Québec, all HVAC contractors must hold a valid RBQ license. Still, several customers from the South Shore only found out after the fact that the company who did the work was not authorized to perform the electrical tasks required to install the heat pump.
At AirGreen, we’re not only certified by the RBQ, but we’re also recognized partners in several government programs. This guarantees our clients a safe, compliant installation that qualifies for key financial incentives.
A rushed, uncommunicative installer
Another recurring theme in the testimonials is the lack of communication from unreliable installers. Missed appointments, unexplained delays, and zero information on how to operate the installed system.
In Montréal, one client told us: “The techs showed up two hours late. They installed the unit in under two hours without testing it. I didn’t even get an explanation for how to use the remote.”
At AirGreen, we always take the time to explain how your system works, show you how to maintain the filters, and we conduct full system tests before leaving the premises.
A sloppy installation with no attention to aesthetics or performance
Loose, visible pipes, holes left unsealed, poorly placed indoor or outdoor units—these are all clear signs that the work was rushed and done without care.
One client on the North Shore discovered that the outdoor unit had been installed without a wall mount, simply placed on gravel next to his driveway. A few months later, moisture and frost had damaged the casing, leading to a major breakdown.
Our certified technicians at AirGreen always follow strict standards for aesthetics, safety, and energy efficiency, ensuring each installation is durable, quiet, and blends naturally into its environment.
Refusal to provide references or proof of experience
Another major red flag: an installer who cannot demonstrate their experience or provide references from past satisfied clients. At AirGreen, we frequently share real installation stories on our website, complete with photos, specific models (BTUs, brands), and customer feedback from across Montréal, Laval, and the South Shore.
Dubious technical suggestions or poorly matched units
Some shady installers push over- or underpowered systems based on what they have in stock, or simply to make a bigger profit.
Case in point from Sainte-Julie: a customer was advised to install a 24,000 BTU wall-mounted heat pump for a 750 sq. ft. home. The result? Short cycles, high energy bills, loud operation, and constant discomfort. We replaced it with a 12,000 BTU Fujitsu KZAH Inverter, perfectly calibrated to the space and eligible for a $1,704 LogisVert grant.
No written warranty or post-installation support
One of the biggest regrets shared by clients who went with unreliable installers is the lack of a written warranty. Multiple customers in Laval and Brossard found themselves out of options when their units broke down just weeks after installation.
At AirGreen, we provide clear, written warranties that include parts and labour, plus a fast and professional after-sales service. Our technicians can be on-site within 24 to 48 hours if anything goes wrong.
Customer testimonial: a bad installation transformed by AirGreen
Ms. Lavoie, in Saint-Lambert, had her heat pump installed by a company she found on a classifieds website. The unit was crooked, water was leaking into the wall, and the system was making strange noises.
She shared: “I couldn’t sleep at night. AirGreen responded quickly, reinstalled everything properly, suggested a quieter Fujitsu KZAH R-32 model, and I was able to get a LogisVert grant. Everything’s perfect now.”
Practical tips to avoid sketchy installers
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Always ask for a detailed quote listing the model, BTU capacity, grants, timelines, and warranties
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Verify their RBQ license and certifications
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Ask for references and check online reviews
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Pay attention to their attitude during the first visit: punctuality, clarity, listening
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Beware of prices that seem too low, which often come with low-quality service
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Choose a well-established local company like AirGreen with a proven, transparent track record
Why choose AirGreen for your wall-mounted heat pump installation?
At AirGreen, we combine transparency, technical expertise, and outstanding customer service. Every installation is performed by certified technicians following rigorous protocols, always on time. We serve Montréal, Laval, Longueuil, the North Shore and the South Shore, offering HVAC solutions that are precisely tailored to residential and commercial needs.
Our mission is to deliver installations that are reliable, long-lasting, and visually appealing, while maximizing your comfort and energy savings.