When a strategic ventilation adjustment becomes a profitability booster
At AirGreen, we often prove that optimizing a commercial HVAC system isn’t just about comfort or code compliance. In many cases, it becomes a powerful economic lever. That’s exactly what we saw during a project for a manufacturing company based in Laval, which managed to increase its margins by 10% in less than a year—all thanks to a simple ventilation system optimization.
Here are the technical, operational, and human details of an intervention that perfectly illustrates the added value of targeted, intelligent HVAC maintenance.
An industrial company dealing with invisible costs
The initial situation
This company operates in the food processing sector, with over 60 employees working in a facility larger than 4,000 m². For years, the director had observed:
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unusually high energy consumption with no clear cause;
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employees complaining of headaches and fatigue;
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an outdated, noisy ventilation system;
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filters constantly clogged, despite monthly maintenance.
All signs pointed to a deep imbalance in the HVAC system, affecting both productivity and operating costs.
Our on-site technical diagnosis
AirGreen’s expertise dedicated to performance
We deployed our specialized commercial ventilation team to carry out a complete diagnosis. Here’s what we found:
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Insufficient airflow in the production zones, leading to moisture and heat buildup;
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no automated air quality controls (no CO2 sensors or intelligent adjustment systems);
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a poorly balanced ductwork network, causing significant pressure loss;
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a central air handling unit running constantly, even when areas were unoccupied.
The solution implemented by AirGreen
A targeted, quick, and sustainable optimization
Without replacing the entire infrastructure, we proposed a series of precise, measurable actions:
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Installed smart CO2 and humidity sensors, linked to an automated regulation system;
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fully rebalanced the ductwork, calibrating diffusers to ensure even airflow distribution;
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replaced fan motors with variable speed drive models (VFDs) to adjust ventilation in real time;
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deep-cleaned the air handling unit and replaced filters with high-efficiency models.
The results after 6 months
Tangible gains across the board
Thanks to this focused intervention, the results were clear and measurable:
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18% reduction in electricity consumption related to HVAC;
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noticeable improvement in thermal comfort and air quality in the production area;
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12% drop in health-related absences compared to the previous year;
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7% increase in productivity on the packaging line;
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10% increase in profit margin, mainly due to energy savings and improved production flow.
A well-leveraged grant
AirGreen’s support to maximize financial assistance
This project was also partially funded through the ÉcoPerformance program from Transition énergétique Québec. We handled:
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preparation of the technical file;
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administrative procedures;
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post-project performance validation.
Result: the company received a $11,000 subsidy, covering nearly 40% of the total costs.
What this story teaches us
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Optimizing an HVAC system doesn’t always mean a full replacement. Sometimes, it just takes a smart rethink of the existing setup.
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HVAC maintenance isn’t just about cleaning filters. It’s about driving consistent performance tailored to the building’s actual usage.
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Grants are accessible, provided you have the right support. At AirGreen, we include this in all our project proposals.
Why call AirGreen to optimize your commercial HVAC?
We’ve been serving businesses in Montréal, Laval, Longueuil, the North Shore, and South Shore for over 15 years, with an approach rooted in:
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rigorous technical diagnostics, tailored to each sector (manufacturing, food, offices, gyms, healthcare);
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concrete, measurable, and lasting solutions;
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recognized expertise in ventilation, fresh air, automation, and energy recovery;
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comprehensive grant support, with a success rate above 90%.
Your HVAC system could be a source of savings, performance, and wellbeing.
At AirGreen, we unlock that potential through an approach focused on technical analysis, energy optimization, and operational efficiency.
Contact us now for a no-obligation evaluation of your current system.