Quand remplacer votre cassette de plafond ? Les signaux d’alerte selon AirGreen à Laval
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When Should You Replace Your Ceiling Cassette? Warning Signs According to AirGreen in Laval

The Telltale Signs It’s Time to Replace Your Ceiling Cassette in Laval

At AirGreen, we understand how essential a ceiling cassette indoor unit is for thermal comfort in commercial spaces, offices, or residential properties across Laval. These ceiling-mounted systems are highly valued for their efficiency and discretion. However, like all HVAC equipment, they don’t last forever. Regular maintenance can extend their optimal functioning, but eventually, cassette replacement becomes necessary. Here are the main warning signs to look out for.

Why Can Your Ceiling Cassette Become Inefficient Over Time?

Ceiling cassette units often operate continuously—especially in commercial or professional environments where they provide constant heating and cooling. In Laval, where the climate varies significantly, these units can be put under even more stress. Here are the main reasons why a replacement may be necessary:

  • Natural wear of internal components: compressor, fan motor, heat exchanger.

  • Build-up of dust or debris clogging the ducts and reducing output.

  • Refrigerant leaks, which can be expensive to repair.

  • Technological obsolescence: newer models are quieter and far more energy-efficient.

Clear Signs That It’s Time to Replace Your Cassette

1. Noticeable Drop in Airflow

One of the first signs to monitor is a decrease in airflow from the unit. If the air is weak, unevenly distributed, or just lukewarm while cooling, this may signal a major malfunction or irreversible blockage of the system.

2. Unusual Noises During Operation

A properly installed ceiling cassette runs quietly. If you hear grinding, humming, or persistent tapping, this may be a sign of:

  • An unbalanced fan

  • Worn bearings

  • Electrical failure

In some cases, repair is possible. But if the noises return regularly, replacement should be considered.

3. Frequent Breakdowns or Electrical Issues

If your unit requires multiple repairs within a single year, it’s typically no longer cost-effective. These recurring issues impact commercial productivity, reduce comfort at home, and increase expenses. At AirGreen, we recommend proactive replacement in such situations.

4. Poor Temperature Control

If the room never reaches the desired temperature—or if the unit takes an unusually long time to stabilize—it may be due to:

  • An internal thermostat malfunction

  • A loss of energy efficiency

  • Advanced wear on the compressor

In a region like Laval, where winters are harsh and summers can be sweltering, this can significantly compromise your indoor comfort.

5. Rising Electricity Bills

An aged cassette consumes more energy while delivering less output. Upgrading to a newer model certified Energy Star or high efficiency can reduce annual energy costs by up to 30%.

What We’ve Seen Firsthand in Laval

Recently, our team responded to a medical center in Laval where a 15-year-old Mitsubishi cassette showed clear signs of fatigue: noisy fan, weak cooling performance, frequent malfunctions. After a thorough technical inspection, we recommended replacement with a Fujitsu R-32 18,000 BTU cassette, featuring high energy efficiency and eligible for over $1,500 in LogisVert rebates. The installation was completed in just one day, with no disruption to the center’s operations, thanks to our expert coordination and team trained to the highest standards.

Benefits of Replacing Your Cassette at the Right Time

Choosing to replace early rather than waiting for a full breakdown offers:

  • Optimized energy performance

  • Improved indoor air quality

  • Reduced noise pollution

  • Fewer repeated maintenance costs

  • Access to available government rebates

How to Choose the Right Replacement Cassette?

1. Proper Sizing

The new unit must be accurately matched to the room’s volume. An undersized cassette will overwork, while an oversized one causes short and inefficient cycles. At AirGreen, we always perform a complete thermal analysis before making any recommendations.

2. Brand and Reliability

We work exclusively with trusted manufacturers like Fujitsu, Gree, Haxxair, Zephyr, and Daikin, ensuring each unit offers great value and long-term support.

3. Noise Levels

Modern units can run at sound levels as low as 25 dB, making them virtually silent, ideal for offices or healthcare settings in Laval.

4. Compatibility with Existing Systems

Our team checks compatibility with your existing HVAC systems to ensure a smooth replacement without costly structural modifications.

Available Rebates in Laval for Cassette Replacement

Many programs support the modernization of HVAC systems:

  • Hydro-Québec’s LogisVert Grant

  • Rénoclimat (high-performance heating)

  • Tax credits for energy transition Our team handles all the paperwork to maximize your reimbursements and simplify the process.

Why Trust AirGreen in Laval?

At AirGreen, we bring over 15 years of experience in HVAC installation, replacement, and maintenance across Laval, the North Shore, the South Shore, Montréal, and Longueuil. We stand out through:

  • Our transparent, fast, and respectful service

  • Certified technicians trained on an ongoing basis

  • Free personalized evaluations

  • A turnkey process, from product selection to final installation—including full grant application support

Final Word: Don’t Let Your Cassette Compromise Your Comfort

Replacing your ceiling cassette at the right time ensures years of comfort, energy savings, and added value to your property. If you're in Laval and suspect your unit is underperforming, contact our AirGreen team today for a professional, no-obligation inspection.