When Installing an HVAC System Seems Impossible in a Condo, AirGreen Delivers Custom Solutions
In the often complex world of HVAC installations in condos, certain constraints can quickly discourage homeowners—or even less experienced contractors. Low ceiling clearance, limited mechanical space, strict condo bylaws, mandatory soundproofing, and tightly controlled aesthetics: these are all realities in many modern condos in Longueuil, and across the South Shore.
And yet, at AirGreen, we’ve proven time and again that what seems impossible becomes achievable when expertise, technical precision, and creativity come together. Here's a look back at a challenging ducted system installation in a Longueuil condo, which perfectly illustrates our commitment to performance, adaptability, and respect for the built environment.
A Modern Condo in Longueuil with Multiple Constraints
Our client wanted to install a centralized HVAC system, invisible and silent, to both cool and heat their condo unit located in a recent residential building in downtown Longueuil. Their goal was clear: replace the old electric baseboards with a solution that’s efficient, discreet, and energy-saving.
The challenge? The mechanical space was extremely limited. There were only 9 inches of clearance between the ceiling and the concrete slab. On top of that, the condo bylaws prohibited any visible modification to the building’s exterior. So we had tight space, high performance expectations, and strict architectural restrictions. Let’s just say most HVAC companies would’ve walked away from the job.
Strategic System Selection: High-Efficiency Ducted Unit
After a full assessment of the building’s structure and the unit’s thermal needs, we recommended the installation of a ducted system from Fujitsu, model AIRSTAGE V-II, paired with a smart wall-mounted thermostat and discreet ceiling diffusers.
This unit is known for its exceptional energy efficiency, ultra-quiet operation, and most importantly, its slim-profile indoor unit, which makes it ideal for tight spaces.
Key Technical Features:
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Capacity: 18,000 BTU
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Type: slim-profile ducted indoor unit
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Refrigerant: R-32 (low environmental impact)
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SEER: 20+
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HSPF: over 10
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Sound Level: under 23 dB(A)
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Eligible Grant: up to $2,000 through Hydro-Québec’s LogisVert program
Custom Installation: AirGreen Expertise in Action
To integrate the system into the limited space, we completely redesigned the condo’s mechanical layout. Here’s how our team pulled it off:
Step 1: 3D Modeling and Condo Board Coordination
Before picking up a single tool, we created a complete 3D model of the condo and the duct routing. This allowed us to visualize every inch of available space and optimize the duct path within the false ceilings.
At the same time, we submitted a complete technical file to the condo board, including product data sheets, installation plans, and a letter of commitment confirming we would meet all soundproofing and aesthetic requirements.
Step 2: Custom-Fabricated Ductwork
Given the limited height, we custom-fabricated all ductwork with an ultra-slim profile and reinforced insulation. We used a compact plenum system to ensure even airflow to all rooms without generating noise.
Step 3: Drilling, Insulation, and Hookups
Each opening was carefully drilled to minimize vibration and maximize performance. All ductwork was fully insulated using multi-layer thermal and acoustic materials to prevent any sound transfer between rooms.
Step 4: Commissioning and Airflow Calibration
Once the outdoor unit was installed on the rear balcony—with discreet anti-vibration support in line with building codes—we performed a full system startup, including a precise airflow calibration for each room.
The Result: Invisible Comfort, Measurable Performance
The result of this installation? A completely invisible central cooling and heating system, extremely quiet, and highly efficient. The client now enjoys consistent comfort in every room, with no compromise on aesthetics or energy use.
The unit handles Longueuil’s seasonal climate perfectly: cool air during the hottest August heatwaves, and even heat throughout the coldest January nights. All of this with energy consumption reduced by over 30% compared to the previous electric baseboards.
Why Trust AirGreen for an HVAC Project in a Condo?
We know every building has its own set of challenges. That’s why we never offer cookie-cutter solutions. At AirGreen:
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We perform a precise thermal analysis before quoting.
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We understand condo board regulations and know how to navigate them.
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We deliver discreet, silent, and aesthetically integrated solutions.
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We stick to timelines and budgets, while guaranteeing technical compliance.
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We guide our clients through the grant application process (like Hydro-Québec’s LogisVert).
Client Testimonial: “I Thought It Was Impossible”
“I couldn’t find a company willing to install a central system in my condo without drilling everywhere or ruining the aesthetics. Several companies had turned me down. Then I contacted AirGreen. They proposed a real solution, did a 3D model, got the condo board’s approval, and installed everything cleanly. Perfect result.”
Bottom Line: AirGreen Ingenuity, Even in the Most Complex Spaces
A ducted system in a condo? Yes, it’s possible. With AirGreen’s expertise, it’s not only possible—it’s perfectly executed.
Whether you’re in Longueuil, Montréal, Laval, the North Shore, or the South Shore, if you’re looking for a custom HVAC solution for your condo, we’re here to help.