Investing in a high-performance commercial heating system is not just about comfort — it’s a strategic necessity to reduce your operating costs and maintain a pleasant environment for your employees and customers. Yet many commercial buildings in Montréal, Laval, Longueuil, the North Shore and South Shore operate with inefficient heating systems, silently responsible for massive energy losses.
At AirGreen, we help businesses every day diagnose, repair, or upgrade their commercial heating systems. Here are 10 subtle but critical signs that your system could be seriously driving up your energy bills this winter — and what you can do to fix it.
Your commercial heating system runs continuously
A heating system that never stops, even in mild weather, is often a sign of improper sizing, a faulty thermostat, or loss of efficiency. This can lead to energy overconsumption and premature wear on the equipment.
At AirGreen, we recently noticed this issue at a retail business in Brossard, where a miscalibrated system was running 24/7. After a precise diagnosis, we adjusted the configuration, which led to a 28% drop in heating costs within just a few weeks.
Your energy bills are increasing without explanation
Sudden hikes in your heating costs, without any notable change in usage or heated surface area, often indicate a drop in system performance. Dirt buildup, leaks, or aging internal components can lead to this type of inefficiency.
Our HVAC maintenance technicians, called in at an office building in Laval, discovered that clogged filters and heat exchangers were causing an annual energy consumption increase of $1,300 above the expected average.
Cold spots remain despite heating
A high-performance commercial heating system should distribute heat evenly throughout the building. Cold spots often indicate poorly insulated ducts, faulty vents, or a poorly designed system layout.
At a warehouse in Longueuil, we solved this problem by installing smart sensors and rebalancing airflow. The result: improved comfort and optimized energy usage.
The heating system is over 15 years old
Even with regular maintenance, a commercial heating system more than 15 years old often becomes obsolete compared to modern energy standards. It costs more to operate and maintain, while delivering poor efficiency.
We recently replaced a 1999 commercial furnace at a medical clinic in Montréal with a Bosch BOVA R-454B central heat pump, more eco-friendly and eligible for the LogisVert grant. The company now saves $3,100 annually.
Unusual noises are coming from the system
Whistling, grinding, or clicking sounds are red flags not to be ignored. They often signal worn-out parts or anomalies in pressure or the motor.
At a business in Blainville, clicking noises came from a cracked burner, posing a risk of major breakdown. A swift intervention avoided a complete system failure in the heart of winter.
The system is poorly or irregularly maintained
Lack of maintenance is one of the main causes of overconsumption and breakdowns. A professional annual HVAC maintenance, including cleaning, filter checks, calibration, and connection inspections, helps maintain peak performance.
At AirGreen, we offer customized maintenance contracts for businesses of all sizes across the South Shore and North Shore, including automatic reminders and detailed efficiency reports.
Indoor air is dry, dusty, or poorly ventilated
Poor air quality is often linked to an outdated or unsuitable heating system. This can negatively affect occupant comfort and force the system to work harder to maintain the desired temperature.
At a private school in Ville Saint-Laurent, we solved these symptoms by installing an integrated humidifier and cleaning the ventilation network, restoring a healthy indoor climate and cutting energy usage by 18%.
The system requires frequent repairs
A system that often breaks down or needs frequent servicing becomes a financial sinkhole. Beyond the cost of repairs, the downtime it causes is especially harmful in a commercial context.
At a restaurant in Repentigny, a failing gas heating system was causing temporary closures. We proposed a hybrid solution including a Gree Versati IV central heat pump, eligible for grants, ensuring reliability and performance.
The system doesn’t respond well to temperature changes
An unresponsive system to outdoor temperature variations is often outdated technologically. New systems with inverter technology or variable speed, such as the FUJITSU KZAH central heat pumps, allow real-time adjustments and substantial energy savings.
A garage in Terrebonne cut its heating costs in half after switching to this type of system, replacing an old oil-fired boiler.
You haven’t had your system evaluated in over 3 years
Without an energy audit or professional evaluation, it’s hard to pinpoint weaknesses in a system. At AirGreen, we offer in-depth technical assessments with thermographic diagnostics, performance tests, and concrete recommendations to optimize your commercial heating system.
Our recommendations for economical commercial heating this winter
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Schedule a full preventive maintenance before the cold season hits.
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Request a free technical evaluation of your HVAC system if it's more than 10 years old.
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Consider replacing your system with a high-efficiency central heat pump to benefit from grants and reduce long-term costs.
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Optimize your building’s insulation and ventilation.
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Work with a trusted HVAC partner like AirGreen for guaranteed results.
Why trust AirGreen for your commercial heating needs?
Thanks to our technical expertise, deep understanding of the real needs of businesses in Montréal, Laval, Longueuil, the North Shore and South Shore, and our innovative commercial heating solutions, we help clients save every winter, while improving comfort and equipment durability.
Whether you own a warehouse, an office building, a retail store or an institution, we provide tailor-made HVAC solutions that meet your expectations and budget.
Recognize any of these signs in your commercial building?
Don’t let a failing system drain your budget this winter. Contact AirGreen today for a professional evaluation, personalized recommendations, and concrete solutions to regain control over your heating costs.