Air Conditioning: These South Shore Homeowners Regret Their Choice — Here’s Why

When a Bad Air Conditioning Decision Leads to Lasting Discomfort on the South Shore

In Longueuil, on Montréal’s South Shore, a recently relocated family in a century-old home hired a third-party contractor to install a wall-mounted air conditioner, lured by an enticing price found in a flyer. Unfortunately, just a few weeks after the installation was completed, the first signs of malfunction started to appear. At AirGreen, we were called in urgently to diagnose the issues — and what we uncovered highlights exactly why it’s crucial to choose a reliable HVAC expert from the start.

A Poorly Planned Installation, an Uncomfortable Home

The installed unit was a generic 12,000 BTU wall-mounted air conditioner, lacking Inverter technology and Energy Star certification. Despite advice from several local installers, the previous owners opted for a cheap unit without considering key elements like the building’s insulation, room layout, or sun exposure.

Problems encountered:

• An oversized unit for a small room, resulting in short cycling and excessive energy consumption.

• Improper outdoor placement of the compressor, fully exposed to the elements without protection.

• An installation that failed to meet Québec’s Building Code standards, especially regarding drainage.

AirGreen’s Role: Correcting the Mistake with Professionalism

After a full evaluation, we recommended removing the defective unit and installing a higher-quality system tailored to the specific needs of the home. We selected a MIDEA25 Wall-Mounted Air Conditioner | 12,000 BTU Inverter R32, a model renowned for its reliability, energy efficiency, and quiet operation. This upgrade not only reduces electricity consumption but also qualifies for Hydro-Québec’s LogisVert program, with a grant of up to $1,365.

Technical Details of the Installation Completed by AirGreen

• Installed model: Wall-mounted air conditioner MIDEA25 R32 | 12,000 BTU

• Technology: High-efficiency Inverter compressor

• Refrigerant: R-32, more eco-friendly and efficient than R-410A

• Indoor noise level: as low as 23 dB(A)

• Subsidy eligibility: LogisVert program – Hydro-Québec

• Coverage area: Living room and dining room, open space totaling 40 m²

• Project duration: Less than 5 hours, including the removal of the old unit

The Result: Optimal Performance and Restored Comfort

Thanks to a complete thermal analysis, precise sizing, and an installation fully compliant with Québec HVAC standards, the new unit now delivers:

• Even cooling across the home’s main area

• Virtually silent operation during the night

• An estimated 30% energy savings compared to the previous system

• Peace of mind, backed by a 10-year full warranty on parts and compressor

Mistakes to Avoid According to AirGreen

At AirGreen, our experience allows us to quickly spot the common mistakes that lead to situations like this one:

• Basing your decision solely on the lowest price

• Ignoring technical specifications of the equipment

• Hiring an installer without verifying RBQ licensing or references

• Overlooking available energy-efficiency grant programs

We always recommend a custom HVAC assessment, tailored to the occupants’ lifestyle, home insulation, and energy-saving goals.

AirGreen: Your HVAC Expert on the South Shore

For years, we’ve completed hundreds of wall-mounted air conditioner and heat pump installations in Brossard, Longueuil, Saint-Lambert, Boucherville, and Saint-Hubert, with an outstanding customer satisfaction rate. Every project is handled with the same level of precision — whether it’s for a private residence, a business, or a multi-unit building.

We also provide:

• Transparent, no-surprise estimates

• Full support with grant applications

• Fast and professional after-sales service

• A trusted selection of top brands: Fujitsu, Gree, Lennox, Midea, Bosch, Sharp, Zephyr

Client Testimonial

“We thought we were getting a great deal, but in the end we lost time and money. Thankfully, AirGreen clearly explained where we went wrong — and now, our only regret is not calling them first!”

Why Trust AirGreen from the Beginning?

We understand that investing in an air conditioning system is a major decision. That’s why we commit to:

• Offering you the right unit, in the right place, for the right purpose

• Guaranteeing careful, code-compliant, and safe workmanship

• Supporting you long-term with maintenance and repair services available throughout the South Shore

One Last Tip Before Installing a Wall-Mounted Air Conditioner

If you’re planning a new installation or replacing an old system, don’t fall into the low-cost trap. Choose recognized local expertise, a selection of reliable, high-performance systems, and professional HVAC installation.

At AirGreen, we don’t just sell units — we provide long-lasting solutions, tailored to your needs, your home, and your budget.

Call us today for a free estimate, or send us a photo of the space you want to cool — we’ll recommend the right system and the ideal placement for optimal year-round comfort.