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Investigation: What’s the Real Cost of a “Cheap” Wall-Mounted Air Conditioner?

A cheap wall-mounted air conditioner: short-term savings or long-term trap?

At AirGreen, we often get calls from clients who, after purchasing a cheap wall-mounted air conditioner, find themselves facing early breakdowns, poor performance, or unexpected installation-related costs. At first glance, these “budget-friendly” models seem appealing: attractive price, quick availability, and the promise of immediate cooling. But what’s the real total cost in the long run? This article dives into the hidden costs of these units and explains why a quality installation performed by certified experts like us is a much smarter investment for families across Montréal, Laval, Longueuil, the North Shore and South Shore.

The myth of the “cheap wall-mounted AC”: when savings turn into expenses

Purchase price vs. cost of ownership

An entry-level wall-mounted air conditioner can cost as little as $900 to $1,300, not including installation. On the other hand, a high-quality model—like a Gree Lomo, Fujitsu KZAH, or Sharp ZU1—sells for around $2,000 to $3,500, including professional certified installation. But the difference doesn’t stop there.

You also need to consider:

  • Energy efficiency: cheap models often have a lower SEER, increasing your electricity bills by up to 30%.

  • Lifespan: a low-end wall unit rarely lasts beyond 6 to 8 years, compared to 12 to 15 years for models installed by AirGreen.

  • Frequency of breakdowns: cheaper units are more likely to suffer from refrigerant leaks, strange noises, or sudden shutdowns.

AirGreen Case Study: A false economy in Laval

We were recently called in to replace a “cheap” wall-mounted AC that had been installed just 4 years ago in a home in Chomedey, Laval. The customer had paid about $1,200 for the unit and $500 for a non-certified installation. The result: excessive noise by year two, poor cooling during hot days, and eventually a compressor failure not covered by the warranty due to the improper installation.

We offered a lasting solution: the installation of a Fujitsu KZAH 12,000 BTU unit with a SEER of 25 and a full 12-year warranty, eligible for a $1,070 LogisVert rebate. Total cost: $3,750, including a careful, calibrated, and guaranteed installation by our certified experts.

Installation: the hidden cost people overlook

Common mistakes with cheap installations:

  • Improper sizing: a unit that’s too small will never cool properly, while an oversized unit will wear out quickly.

  • Missing electrical upgrades: some cheap units require adapters or non-compliant power supplies, posing safety risks.

  • Poorly sealed wall penetrations: this can lead to air leaks, humidity problems, and mold growth.

An AirGreen installation always includes:

  • A complete thermal assessment,

  • Reinforced, model-appropriate wall brackets,

  • A pressure and refrigerant leak test,

  • An official start-up fully compliant with CSA and RBQ standards.

Warranty, service, and follow-up: things you can’t put a price on

With a “cheap” wall-mounted AC, the warranty is often limited to just 1 or 2 years… and usually voided if the installation wasn’t done by a certified professional. At AirGreen, we provide a comprehensive 10- to 12-year parts and labor warranty on our recommended units, as well as fast, reliable, and personalized after-sales service across Greater Montréal.

The rebates that change everything

One thing many people overlook when buying a cheap wall-mounted AC is their ineligibility for rebate programs. To qualify for Hydro-Québec’s LogisVert rebate, you need to:

  • Choose an eligible unit (SEER ≥ 18),

  • Use a contractor certified by RBQ,

  • Meet the required installation standards.

We’ve helped dozens of clients in Longueuil, Saint-Jérôme, Brossard, and Laval secure rebates of up to $2,200, making a high-end wall-mounted AC more affordable than a low-end model without rebates.

Why choose AirGreen: true CVAC expertise

At AirGreen, we don’t just sell machines—we deliver lasting solutions. Our team is fully versed in CVAC technologies, local regulations, and the unique constraints of each building. Our installations follow the highest standards, with attention to detail and complete transparency about costs.

Our tips to avoid unpleasant surprises

Do:

  • Ask for a full evaluation before purchase.

  • Check that the unit is rebate-eligible.

  • Demand a certified installation by an RBQ contractor.

  • Make sure you understand the real warranty and its conditions.

Don’t:

  • Buy a wall-mounted AC from a website with no local support.

  • Let a friend or general contractor handle the installation.

  • Forget to calculate the 10-year usage cost (electricity, repairs, early replacement).

Conclusion: cheap ends up costing more

A “cheap” wall-mounted air conditioner might seem like a good idea at first, but often proves to be the wrong choice in the long run. Weak performance, poor comfort, and unforeseen extra costs… the downsides far outweigh the initial savings. At AirGreen, we help you make the right choice from the start, offering reliable, efficient, and long-lasting units, professionally installed using the best CVAC practices in Montréal and surrounding areas.

Trust AirGreen for a wall-mounted AC installed the right way, with comfort guaranteed for years to come. Contact us now for a fast, personalized quote anywhere in Montréal, Laval, Longueuil, the North Shore, or the South Shore.