A central HVAC installation designed for your comfort and energy efficiency
Installing a central heat pump is not just a technical project – it’s a long-term investment in indoor comfort, air quality, and energy efficiency. At AirGreen, we guide our clients across Montreal, Laval, Longueuil, the North Shore, and the South Shore through every stage of this complex process. Thanks to our structured approach, our expertise in HVAC, and our careful selection of equipment (notably Fujitsu, Gree, Goodman, Bosch, Arcoaire, Comfortmaker, among others), we ensure a reliable, high-performance installation that meets the highest standards.
In this guide, we break down exactly step-by-step how a complete central heat pump installation takes place – from the initial evaluation to the system startup. We include real-world examples, practical advice, and key differences that make our service stand out.
Initial evaluation: thermal analysis and on-site inspection
It all begins with an on-site evaluation carried out by our certified experts. The goal? To determine the exact heating and cooling needs of the building, assess the configuration of the existing ductwork (if any), identify architectural constraints, and discuss the client’s objectives: comfort, lower energy bills, eligibility for subsidies, or replacing an outdated system.
We use thermal load calculation tools to recommend the ideal BTU capacity. For example, in a 2,000 sq. ft. home in Laval, we recently recommended a Bosch BOVA 36,000 BTU central heat pump with Inverter technology for its ability to maintain stable temperatures even at -25°C.
Choosing the unit: brands, models, and technical criteria
At AirGreen, we prioritize units known for their durability, energy efficiency ratings (SEER, HSPF), compliance with Quebec standards, and eligibility for government grants like Hydro-Québec’s LogisVert program.
We help the client choose the right central heat pump model based on:
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Required capacity (e.g.: 24,000 to 60,000 BTU)
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Compressor type (single-stage, two-stage, or Inverter)
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Noise level (especially for outdoor units near bedrooms)
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Certifications: Energy Star, AHRI, NEEP
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Cooling/heating needs for single or multiple zones
Example: in Longueuil, we installed a Lennox EL18XPV central heat pump, 36,000 BTU, with a Lennox electric furnace – perfectly suited for a renovated duplex with upgraded insulation.
Planning and coordinating the work
Once the unit has been selected, our team plans the installation work, factoring in the customer’s availability, weather conditions, and delivery timelines. We also obtain the required municipal permits for the HVAC installation (mandatory in many Montreal boroughs).
Dismantling or replacing the old HVAC system
If this is a replacement, we begin with the safe removal of the existing system: heat pump, furnace, outdated ductwork, or existing air conditioner. Recyclable materials are sorted on site.
In Saint-Eustache, for example, we recently replaced an oil heating system with a Fujitsu AIRSTAGE J-II central heat pump paired with an ACD electric furnace – a choice that allowed the client to cut their annual energy bill by 45%.
Installation work: the most critical stage
Our certified technicians carry out the full installation of the system:
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Placing the outdoor unit on a concrete slab or wall-mounted bracket with vibration dampeners
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Installing the indoor unit (air handler) in the mechanical room
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Connecting to the ductwork: we adapt or optimize the duct network as needed (sometimes partially replacing it)
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Electrical connection by a certified master electrician, with a dedicated disconnect
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Refrigerant line connection between the two units, with nitrogen pressure test and leak detection
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Pipe insulation to prevent performance loss
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Drainage: carefully sloped to the sanitary sewer
Real-life example: in a multigenerational home in Brossard, the finished basement made duct routing more complex, requiring a custom bypass solution without cutting into the ceilings. Thanks to our tailored approach, we integrated the central unit without compromising the home’s aesthetics.
System startup and configuration
Before delivering the system, we carry out:
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Final checks (pressure, airflow, temperature)
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Setup of the smart thermostat (Nest, Ecobee, or manufacturer-provided)
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Performance test at full capacity
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Client orientation on how the system works, recommended settings, and periodic maintenance
Each installation includes a signed technical report, useful for subsidy applications or municipal inspections.
Subsidies and administrative support
We help our clients prepare all documents for HVAC grants: detailed quotes, AHRI certification, proof of installation by an accredited contractor, and photographic evidence. For example, a Bosch IDS Premium 18,000 BTU heat pump installed in Repentigny qualified our client for a $5,000 LogisVert grant, thanks to our full administrative support.
Follow-up, warranty, and after-sales service
AirGreen provides personalized follow-up after installation. In case of a question or issue, our technical support team is available 7 days a week. We also offer:
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Annual HVAC maintenance contracts
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Extended labor warranties, in addition to manufacturer warranties
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Seasonal inspection visits
In Anjou, a residential customer recently benefited from a free spring maintenance visit included in their contract, where we cleaned the evaporator, checked airflow, and tested compressor performance.
Common mistakes to avoid when installing a central heat pump
Here’s what we always advise our clients to avoid:
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Underestimating the building’s true thermal load
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Choosing an oversized or poorly calibrated system
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Overlooking the condition of existing ductwork
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Hiring a non-certified contractor
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Failing to confirm eligibility for HVAC grants
Why choose AirGreen for your central heat pump installation?
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In-depth expertise with central HVAC systems
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Full mastery of the most reliable brands: Fujitsu, Gree, Lennox, Bosch, Goodman, etc.
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Dozens of successful installations across Montreal, Laval, Longueuil, the North Shore, and the South Shore
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Clear, thorough, and accessible after-sales service
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Complete support for Hydro-Québec, LogisVert, and other subsidy programs
Final word: a successful installation, long-term comfort
Installing a central heat pump is a game-changing project for any residential or commercial property. By trusting AirGreen with this installation, you’re choosing a professional HVAC installation, built to last, optimized for Quebec’s climate, and backed by outstanding customer service. Every installation is a technical and human success – and that’s what we do best.