Guide d'entretien : comment faire durer votre unité plancher-plafond jusqu’à 20 ans à Montréal ?
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Maintenance Guide: How to Make Your Floor-Ceiling Unit Last Up to 20 Years in Montreal

Maximize the Lifespan of Your Floor-Ceiling HVAC Unit in Montreal: Best Practices, Technical Tips, and AirGreen Expertise

In Montreal, where winters are harsh and summers increasingly hot, investing in a floor-ceiling unit for your HVAC system is a strategic decision for both homeowners and businesses. However, even a high-performance unit won’t reach its full potential without consistent and proper maintenance. At AirGreen, we support our clients throughout the entire lifespan of their unit, providing a smart, structured maintenance service tailored to the realities of Quebec’s climate.

Why Maintaining Your Floor-Ceiling Unit in Montreal Is Essential

Floor-ceiling units, whether they’re from Fujitsu, Gree, LG, Mitsubishi, or Daikin, offer outstanding thermal comfort thanks to their power, discreet design, and ability to be installed in complex configurations. However, their energy performance and longevity are directly linked to how regularly and thoroughly they are maintained.

Montreal, with its long stretches of cold and heat, puts constant pressure on HVAC systems. Without proper maintenance, filters get clogged, heat exchangers wear out prematurely, and energy consumption increases. Over time, this can compromise the overall efficiency of the system and lead to costly breakdowns.

Critical Components to Monitor for Maximum Longevity

Air Filters: First Line of Defense

Air filters are the first components that require maintenance. In a city like Montreal, where dust, pollen, and fine particles are common, a clogged filter can lead to excessive energy use, lower thermal efficiency, and even premature compressor failure.

Recommended frequency: clean or replace every 1 to 2 months, depending on usage.

Heat Exchanger: The System’s Core

A floor-ceiling unit relies on a high-performance heat exchanger for both heating and cooling. Keeping it free from dust, grease, or excess moisture not only ensures stable temperatures but also prevents corrosion.

Recommended frequency: a full inspection and cleaning at least twice a year (spring and fall).

Fan and Turbines: Ensuring Even Air Distribution

Dirty blades can cause strange noises, reduce airflow, and lead to mechanical imbalance. We frequently encounter this issue during maintenance visits in Montreal, Laval, and Longueuil.

Recommended frequency: annual inspection, with balancing and cleaning if needed.

Professional Maintenance: A Path to Savings and Safety

At AirGreen, we offer customized maintenance contracts tailored to your needs—whether you're a homeowner, building manager, or business owner. Our certified technicians intervene quickly, using precise protocols that include:

  • Checking refrigerant pressures

  • Deep cleaning of indoor coils

  • Drainage control and leak detection

  • Wall thermostat calibration

  • Inspection of the outdoor unit (if applicable)

These regular services help prevent breakdowns, ensure optimized energy consumption, and preserve manufacturer warranties, which are often contingent on documented annual maintenance.

Client Testimonial in Montreal: Extending the Life of a Fujitsu Floor-Ceiling Unit

One of our clients, the owner of a condo in downtown Montreal, contacted us in 2016 to install an 18,000 BTU Fujitsu floor-ceiling unit. The goal was to efficiently heat the open-concept living space and cool it during summer heatwaves.

Since installation, we’ve provided full annual maintenance. Thanks to this consistent care, the unit is still running at full capacity today, with zero breakdowns. In fact, energy consumption dropped by 12% between 2016 and 2024—clear proof that preventive maintenance is a smart investment.

Common Mistakes to Avoid

Delaying Seasonal Maintenance

The biggest mistake we see homeowners make is postponing maintenance because their system “still works.” But that’s exactly why it should be maintained before wear and tear take hold.

Using the Wrong Products

Some cleaning products sold in big-box stores can damage the internal surfaces of the units. At AirGreen, we only use products approved by HVAC manufacturers.

Ignoring the Outdoor Unit

Even if your floor-ceiling unit is indoors, it’s typically connected to an outdoor unit exposed to Montreal’s climate. Neglecting it means ignoring half the system.

Practical Recommendations for Homeowners in Montreal

  • Schedule two maintenance sessions per year: one in spring (before cooling season), one in fall (before heating).

  • Install an electrostatic or HEPA filter if you suffer from allergies or live in a polluted environment.

  • Always keep access to the unit clear to ensure optimal airflow.

  • Watch for unusual noises or drops in performance—they’re often early signs of an issue that should be addressed quickly.

Why Choose AirGreen to Maintain Your Floor-Ceiling Unit

AirGreen, a leader in HVAC services across Montreal, Laval, Longueuil, the North Shore, and the South Shore, offers tailored maintenance services adapted to every installation and environment. Our expertise is built on:

  • In-depth knowledge of brands (Fujitsu, Gree, Daikin, LG, Mitsubishi, etc.)

  • Documented, traceable interventions that meet warranty requirements

  • Certified technicians trained continuously

  • A proactive approach focused on preventing breakdowns

We’ve helped hundreds of clients extend the lifespan of their HVAC systems, whether in residential homes or commercial buildings.

Conclusion: Aim for 20 Years of Performance

A well-maintained floor-ceiling unit can easily reach 20 years of service in Montreal—even with heavy use. It all comes down to prevention, consistency, and technical expertise, the three pillars that we place at the heart of every AirGreen service call.

Don’t wait for a problem to appear. Trust a local, certified team that’s genuinely committed to your indoor air quality and the energy efficiency of your systems.