Summer is in full swing, the sun is heating up the patios, and air conditioners are running non-stop in homes across Greater Montréal. And yet, one common — and often overlooked — mistake can have serious consequences on your winter comfort: neglecting your heating system during the summer. At AirGreen, every year we meet clients in Montréal, Laval, Longueuil, on the North Shore and the South Shore who are caught off guard in the fall with a malfunctioning heating system, simply because they didn’t schedule maintenance or check-ups during the warm season. Here’s everything you need to know to avoid this costly mistake.
Summer: A Strategic Time to Take Care of Your Heating System
Contrary to popular belief, summer is the ideal season to make sure your heating system is working perfectly. Why? Because the demand for heating services is low, HVAC technicians are more available, and response times are much faster. This allows you to act proactively, without stress or urgency.
Less Waiting, More Peace of Mind
In winter, emergency calls skyrocket. A simple heating breakdown then becomes a logistical nightmare. By scheduling a visit in summer, you benefit from a thorough system inspection, often at a better price, and with greater flexibility to pick a time that suits you.
Avoiding Unpleasant Surprises in the Fall
Restarting your heating system in the fall can reveal problems that developed during its idle period: clogged filters, worn-out components, strange noises, loss of efficiency. These issues could have been detected and corrected much earlier if they had been taken care of during the summer.
Preventive Maintenance: A Smart Move to Extend the Life of Your System
A professional HVAC maintenance check-up in summer not only extends the lifespan of your equipment, it also improves its efficiency. At AirGreen, we carry out a complete inspection that includes:
-
Burner inspection
-
Thermostat check-up
-
Duct cleaning
-
Heat exchanger evaluation
-
Ventilation and airflow testing
-
Filter check and replacement if needed
This type of service guarantees a safe, high-performance, and energy-efficient heating system for the cold months ahead.
Real-Life Example: A Home in Longueuil
Last July, we were contacted by a homeowner in Longueuil who wanted to have her gas furnace inspected — it had been installed 10 years ago. She thought it would be just "a quick check." During our visit, we detected the beginning of a crack in the heat exchanger, which could have caused a carbon monoxide leak. Thanks to our proactive intervention, the client was able to replace the defective part in time, avoiding serious danger to her family.
The Mistake to Avoid: Shutting the System Off Completely
Many people believe they’re doing the right thing by turning their heating system off completely during the summer. In reality, this practice can lead to:
-
Moisture buildup in the ducts
-
Premature degradation of electronic components
-
Difficult or unstable restarts in the fall
It is strongly recommended to leave your system in standby mode, or at the very least, to run the fan from time to time to keep air circulating.
Heat Pumps: Watch Out for How You Use Them in Summer
Heat pumps are becoming more and more popular in Montréal, Laval, and on the South Shore, since they can both heat in the winter and cool in the summer. However, improper use in summer can affect their performance in winter. For instance:
-
Setting the AC too low (e.g., 64°F) overworks the compressor unnecessarily
-
Neglecting to clean the filters or outdoor unit reduces airflow and system performance
-
Some users forget to reprogram the thermostat or switch the system to heating mode before fall arrives
The Value of an Annual Maintenance Plan
At AirGreen, we strongly recommend signing up for an annual maintenance plan. This includes a visit in spring or summer to:
-
Optimize your system’s performance
-
Detect hidden issues
-
Maintain manufacturer warranties
-
Prepare your home for Québec’s extreme winter weather
Our technicians provide fast, professional service throughout Montréal, Laval, Longueuil, the North Shore, and the South Shore, with flexible scheduling and courteous support.
The AirGreen Reflex
Don’t fall into the trap of “pausing your heating system” during summer. In reality, it’s the key moment to take care of it. Whether you own a wall-mounted heat pump, a central gas system, or a dual-energy unit, our experts ensure your system stays in top shape year-round.
By acting now, you:
-
Avoid winter breakdowns
-
Lower your electricity bills
-
Extend the life of your system
-
Improve your thermal comfort, both in summer and winter
Why Trust AirGreen?
With hundreds of installations and service calls completed across Greater Montréal, we know the specific climate and technical challenges unique to each area: high humidity in Laval, major temperature swings on the North Shore, older homes in Longueuil, etc.
Our services include:
-
Tailored HVAC installations
-
Regular HVAC maintenance
-
Heating and heat pump repairs
-
Energy performance optimization
-
Grant assistance with LogisVert and provincial programs
In Summary
Summer is far from a “break” for your heating system. It’s actually the most strategic time to ensure its reliability, safety, and performance when you’ll need it most. At AirGreen, we take pride in offering complete heating and cooling solutions, with a personalized, human approach that’s fully committed to client satisfaction across Montréal, Laval, Longueuil, the South Shore, and the North Shore.
Contact us today to schedule a smart, stress-free summer maintenance appointment!