A sustainable and efficient heating solution for businesses in Greater Montreal
In a context where businesses are looking for sustainable ways to heat their buildings, geothermal energy is increasingly becoming a serious alternative. At AirGreen, we’ve helped many commercial clients in Montréal, Laval, Longueuil, on the North Shore and the South Shore, make the transition to a geothermal heating system. But is this technology truly a promise of a greener and more cost-effective future—or is it a long-term gamble?
What is geothermal heating in a commercial context?
Geothermal heating works by using the natural heat stored underground to warm a building. With a geothermal heat pump connected to an underground loop system (horizontal or vertical), we can extract this heat and use it to power an air-based or water-based heating system.
For commercial buildings, this technology allows for consistent heating of large spaces while drastically reducing energy consumption compared to traditional systems (natural gas, oil, direct electricity).
Why businesses choose geothermal: real-life benefits
Here are the key advantages we highlight during our commercial geothermal heating projects:
Major energy cost reduction
Geothermal systems can slash annual heating costs by 50 to 70%. This performance is thanks to a high COP (coefficient of performance), often above 4, meaning that for every kWh of electricity consumed, the system generates 4 kWh of heat.
Available grants and incentives
In Québec, several government and municipal programs offer financial assistance for sustainable commercial HVAC projects, especially in cities like Montréal and on the South Shore. We assist our clients through the grant application process, including with Transition Énergétique Québec and ÉcoPerformance.
Long lifespan and low maintenance
A well-designed and installed system can last over 25 to 30 years for the heat pump, and up to 50 years for the underground loop. Also, unlike boilers or furnaces, these systems have fewer mechanical parts and require minimal maintenance.
Smaller carbon footprint
As more companies seek to reduce their environmental impact, choosing geothermal heating contributes directly to decarbonizing the commercial sector.
Real examples of AirGreen installations
Case #1: Architecture firm headquarters in Longueuil
We completed the installation of a vertical geothermal system with six 150-meter wells, connected to a 10-ton central heat pump. The building, which previously used gas heating, saw its annual energy bill drop by 66%. The project was completed in 6 weeks, respecting the client’s operational needs.
Case #2: Logistics warehouse in Laval
A 20,000-square-foot warehouse on the North Shore requiring constant winter heating. Using a horizontal loop system paired with a WaterFurnace geothermal heat pump, the client achieved a return on investment estimated at under 8 years, including grants.
The challenges: is geothermal always the best option?
High upfront costs
One of the main barriers is the initial investment cost, which can be 2 to 3 times higher than a conventional system. However, with the available grants, this cost can be significantly reduced—especially in areas like Montréal or Longueuil where local governments strongly support energy transition projects.
Need for suitable land
Installing a loop system—especially horizontal—requires sufficient surface area. In dense urban areas like downtown Montréal, vertical drilling is often necessary, which increases costs and project complexity.
Technical studies and customized design
Before launching a project, a full feasibility study is essential. This includes soil analysis, thermal load assessment, and projected energy savings. At AirGreen, our commercial HVAC team works closely with energy engineers to design custom systems tailored to each building.
What clients should know before investing
1. Work with a qualified contractor
Installing commercial geothermal systems requires specific certifications. AirGreen holds all the required accreditations to design, install, and maintain commercial geothermal systems.
2. Integration with existing HVAC infrastructure
In many cases, it’s possible to retain parts of the existing HVAC infrastructure (duct network, radiant floors), which lowers costs and speeds up installation.
3. Periodic maintenance is essential
While geothermal systems require little maintenance, an annual check-up ensures the system runs optimally, maintains peak efficiency, and extends its lifespan. Our HVAC maintenance plans are built to deliver that peace of mind.
Commercial geothermal: a long-term strategic investment
Despite a higher upfront cost, geothermal is a smart investment for businesses seeking to cut operating costs, secure energy supply, and reduce their carbon footprint.
At AirGreen, we support our clients every step of the way: technical analysis, securing grants, installation, commissioning, and maintenance. With experience across Montréal, Laval, Longueuil, the North Shore and South Shore, we know how to tailor each project to the local realities.
Why choose AirGreen for your commercial geothermal heating project?
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Certified expertise in commercial HVAC and geothermal systems
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Proven field experience in complex projects across Montréal, Laval, Longueuil, and surrounding areas
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Full-service support from feasibility to maintenance
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Highly skilled technical team
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Tailored design to maximize energy savings
We believe commercial geothermal heating is not a trend—it’s a concrete solution to tomorrow’s energy challenges. Trust us with your project, and together we’ll build a more sustainable future.