Home » Cleaning Service: Heating, Ventilation & Air Conditioning Greater Montreal » Do you know why your heat pump isn’t heating as well? (Hint: it’s lack of maintenance).
Savez-vous pourquoi votre thermopompe chauffe moins ? (Indice : entretien négligé).
Reading time: 5'

Do you know why your heat pump isn’t heating as well? (Hint: it’s lack of maintenance).

A poorly maintained heat pump loses performance – and your winter comfort pays the price.

In Greater Montréal, where winters are long and harsh, the proper operation of your HVAC heating system is essential. And yet, many people notice a drop in performance from their wall-mounted or central heat pump, without understanding the reason. At AirGreen, we’re often called in to diagnose a heat pump that "doesn’t heat like it used to." The answer is often simple but overlooked: a lack of regular maintenance.

Neglected maintenance: the number one enemy of your heat pump

The buildup of dust, grease, and pollutants in both indoor and outdoor units is one of the leading causes of decreased efficiency. This impacts:

  • Airflow, which gets blocked by clogged filters or dirty coils

  • Heat exchange, which is reduced due to buildup on the fins

  • Energy consumption, which increases as the machine works harder

  • Lifespan of the system, which drops due to component overload

Our technicians, during a comprehensive HVAC maintenance service, often find units operating at 30% to 50% less efficiency due to being left uncleaned for multiple seasons.

Case study: service call in Saint-Hubert on the South Shore

We were recently called in to Saint-Hubert to service an 18,000 BTU Gree Extreme wall-mounted heat pump installed 3 years prior. The client reported that the unit was barely heating and that indoor temperatures stayed too low despite correct settings. Our technician quickly diagnosed:

  • Completely saturated indoor filters

  • An outdoor unit clogged with plant debris

  • An indoor turbine full of grease, reducing airflow

After a deep high-pressure cleaning, the unit returned to optimal performance. Immediate results: better heating, quieter operation, and lower electricity use.

Recommended maintenance schedule for your heat pump

We recommend residents of Montréal, Laval, Longueuil, the North Shore and South Shore follow these best practices:

  • Professional annual maintenance, ideally in the fall

  • Monthly cleaning of filters by the homeowner

  • Seasonal visual checks of the outdoor unit

These simple steps help maintain thermal performance, extend equipment life, and avoid costly repairs.

Signs your heat pump needs servicing

Here are the most frequent symptoms reported by our clients throughout Greater Montréal:

  • The air being blown is lukewarm instead of hot

  • The machine runs constantly without reaching the set temperature

  • Unusual noises start to appear

  • Your electricity bill suddenly goes up

  • The outdoor unit is freezing up

If you notice any of these signs, don’t wait until the system fails completely.

Why choose AirGreen for your heat pump maintenance

At AirGreen, our reputation is built on rigorous standards, transparency, and top-quality HVAC service across Greater Montréal. Here’s what sets us apart:

  • Certified and experienced technicians for all heat pump types (Fujitsu, Gree, Tosot, Sharp, Bosch, Goodman, etc.)

  • Thorough cleaning methodology, including turbine disassembly and high-pressure washing

  • Detailed inspection reports after every visit, with before/after photos

  • Personalized service, adapted to your building type (condo, house, multiplex, commercial)

We’ve already performed hundreds of maintenance calls throughout the North Shore, South Shore, Laval, Longueuil and Montréal as part of ongoing contracts or one-time service calls.

Preventive or corrective maintenance: take action now

The cost of professional maintenance is far less than having to replace your system prematurely. It’s also a direct investment in your daily comfort, your health (thanks to better air quality), and your electricity bills.

We offer annual maintenance packages, with automatic reminders and discounts for loyal customers. Don’t wait until your wall-mounted or central heat pump breaks down in the middle of January.

A few practical tips while waiting for our technician

  1. Clean your filters at least once a month

  2. Make sure the outdoor unit is not obstructed (leaves, snow, ice)

  3. Check that the air flaps open properly when the unit starts

  4. If you see persistent frost on the outdoor unit, shut it down and call us

Client testimonials from Laval and Montréal

“I thought my heat pump was done for. After AirGreen’s visit, it works like brand new. Thank you for your professionalism.”
– Client in Laval (Sharp ZU1 heat pump, 24,000 BTU)

“Very satisfied with the cleaning of my Fujitsu wall-mounted heat pump. The technician was thorough and took the time to explain each step.”
– Client in Longueuil (KZAH heat pump, 12,000 BTU)

Our service area: fast and efficient response

We cover all of Greater Montréal, including:

  • Montréal and all boroughs

  • Laval, Longueuil, Brossard

  • South Shore: Saint-Hubert, Saint-Lambert, Boucherville

  • North Shore: Terrebonne, Blainville, Boisbriand, Mirabel

Our teams are mobile and available quickly, even during high-demand periods.

Conclusion: neglected maintenance can cost you

At AirGreen, we believe that HVAC maintenance is not an expense, but an essential investment to extend the life of your equipment, ensure your comfort, and avoid nasty surprises. Don’t let your heat pump underperform this winter: contact us for a complete, meticulous, and professional maintenance service.

Are you located in Montréal, Laval, Longueuil, on the North Shore or South Shore? AirGreen is your go-to expert for wall-mounted and central heat pump maintenance.

Leave a comment