Wall-Mounted Heat Pumps: Why a Price That’s Too Low Should Always Raise Red Flags (Real Testimonials)

Behind a deal that seems too good to be true often lie costly HVAC mistakes

At AirGreen, we’re often called in to fix or replace HVAC installations that were chosen solely based on a low price. In Greater Montréal, Laval, Longueuil, on the North Shore and the South Shore, many clients have reached out to us after dealing with the consequences of a poorly installed wall-mounted heat pump—often done hastily, by an uncertified contractor, or using substandard components. This is more common than you might think, and the repercussions go far beyond minor inconveniences.

Testimonial from Montréal: A “bargain” heat pump that turned out to be very costly

A client in the Hochelaga-Maisonneuve neighbourhood called us urgently. A few months earlier, they had a 12,000 BTU wall-mounted heat pump from an unknown brand installed at an incredibly low price. The result?

• The indoor unit made excessive noise

• The outdoor compressor seized after the first winter

• There was no after-sales support

Upon inspection, we found the unit used an outdated refrigerant, the electrical connections were not CSA-compliant, and the installation had been done without proper slope for the condensate drain.

Our solution: we installed a Gree Lomo R32 heat pump, following proper technical standards. The result: stable comfort, real energy efficiency, and eligibility for the Hydro-Québec LogisVert grant program.

The hidden risks behind cheap prices

Poor quality or unauthorized imported equipment

Cut-rate units often come from unknown manufacturers with no valid warranty in Quebec. These systems sometimes use non-compliant components or even banned refrigerants (R22). Over time, this can make maintenance impossible or lead to irreparable breakdowns.

Installations that don’t meet HVAC standards

A low price often means no certified technician was involved. A bad installation can cause:

• Refrigerant leaks

• Ineffective drainage leading to moisture in the walls

• Poor unit placement, which reduces overall performance

Testimonial from the South Shore: A damp and uncomfortable home

A family in Brossard went with a company offering wall-mounted heat pump installation at 40% less than the competition. Just weeks later, condensation was forming around the indoor unit, and mold appeared on adjacent walls. The system was undersized and couldn’t dehumidify properly.

Our intervention: we replaced it with a Fujitsu KZAH 15,000 BTU unit, perfectly suited to the space. Our technicians repositioned the unit, adjusted the drain slope, and calibrated the airflow. Three months later, the humidity was stabilized, and air quality was significantly improved.

Warning signs to watch for when comparing quotes

Here’s what to be wary of when reviewing estimates:

• No mention of the brand or specific model being proposed

• No details about the type of refrigerant used

• No RBQ license or liability insurance from the contractor

• No mention of any available grant programs (LogisVert or others)

• Installation offered too quickly, sometimes same-day

At AirGreen, our quotes always include:

• The exact heat pump model

• Full technical specifications: BTU, SEER, HSPF, sound level

• The brand and origin of components (certified for Quebec climate)

• A clear timeline and post-installation follow-up

Why cheap heat pumps are almost never eligible for government grants

Government programs like Hydro-Québec’s LogisVert or Rénoclimat require strict performance and energy efficiency standards. Budget wall-mounted heat pumps usually don’t meet:

• The minimum energy efficiency required (SEER > 16, HSPF > 9)

• Installation and safety standards

• Requirements for durability in northern climates

Testimonial from Laval: A rejected grant due to a poor initial choice

A homeowner in Chomedey had a budget wall-mounted heat pump installed, thinking he could later apply for a grant. Unfortunately, the model wasn’t on the eligibility list, and the application was denied. He then had to call AirGreen to redo the installation with a Midea22 12,000 BTU 115V, which was eligible. The result: $1,520 in grants received, and a reliable, quiet, high-performing unit.

Our advice to avoid costly mistakes

1. Always check certifications for both the manufacturer and installer (RBQ, TEQ, CSA)

2. Ask for the exact performance specs: SEER, HSPF, sound level

3. Ensure the installation follows Quebec HVAC standards

4. Choose a company that offers full support: product selection, installation, maintenance, and grants

Why choosing AirGreen is always a smart investment

At AirGreen, we’re called every week in Montréal, Laval, Longueuil, on the North Shore and the South Shore to fix poorly planned or poorly executed installations. Our promise is clear: quality, compliance, transparency, and long-lasting service.

Our certified technicians install only top-tier wall-mounted heat pumps (Fujitsu, Gree, Midea, Sharp), compliant with energy efficiency standards and always eligible for grants.

Every project is customized, documented, and supported long-term, with accessible and local after-sales service.