A fast, efficient, and customized intervention for optimal comfort in a professional space in the heart of Montreal
In the field of commercial HVAC, speed of execution without compromising quality is often the key to a successful project. At AirGreen, we once again demonstrated this by completing the full installation of a wall-mounted air conditioning system in a downtown Montreal office building in just 72 hours. This high-stakes challenge, accomplished under a tight deadline, is a testament to our know-how, meticulous planning, and unwavering commitment to customer satisfaction.
A major challenge: air conditioning an entire office building in record time
The project background
Our client, a growing digital services firm, had recently taken possession of new offices spread across two floors in a heritage building located in downtown Montreal. Unfortunately, there was no air conditioning system in place, and with summer fast approaching, ensuring the thermal comfort of their employees became an urgent priority.
From our very first technical site visit, we assessed the structural constraints, energy needs, open workspaces, as well as enclosed offices, server rooms, and meeting areas—each requiring precise levels of cooling.
Objective: full installation in under 3 days
The client gave us a maximum deadline of 72 hours, which included the delivery of the units, electrical work, installation of conduits, mounting of wall-mounted air conditioners, remote setup, and start-up testing.
Equipment selection: a reliable and high-performance solution
To meet the technical requirements and tight schedule, we recommended installing GREE LOMO 18,000 BTU and 24,000 BTU wall-mounted air conditioners with high energy efficiency ratings.
Why GREE?
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Inverter technology for quiet and energy-efficient operation.
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R-32 refrigerant with low environmental impact.
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Wireless remote controls with programmable features.
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Top performance, even on the hottest days.
The system we selected allowed for a quick installation, with no need for heavy ductwork, while offering the flexibility to adapt each unit to the specific needs of different building zones.
Key phases of the installation
Day 1: planning and logistics
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Express delivery of GREE units directly to our Montreal-North warehouse.
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Two technical teams mobilized in parallel.
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Electrical circuits prepped by our certified electricians.
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External wall drilling using specialized diamond core drilling equipment to minimize vibrations and preserve the building’s structural integrity.
Day 2: installation of indoor units and outdoor compressors
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Mounting of 11 indoor units, including 9,000 BTU, 12,000 BTU, and 24,000 BTU models based on room sizes.
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Refrigerant lines covered with aesthetic white conduit casing.
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Installation of four outdoor units on an elevated steel structure in the rear courtyard, designed to maximize airflow and ease of maintenance.
Day 3: calibration, testing, and staff training
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Refrigerant lines pressurized with nitrogen gas to check for leaks.
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Full system performance testing and operational measurements.
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Staff training on how to use the remotes and basic maintenance.
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Delivery of a customized user guide including serial numbers, zone configurations, and seasonal maintenance recommendations.
Results: immediate comfort and customer satisfaction
In less than three days, the building went from being stifling hot to a perfectly climate-controlled professional space. Management expressed their appreciation for our responsiveness and efficiency, highlighting our technicians’ clean, fast, and discreet work, as well as the flawless quality of the installation.
We even received a formal letter of recommendation praising our professionalism and our ability to work under pressure without sacrificing attention to detail.
Technical challenges and concrete solutions
Challenge: heritage building with thick load-bearing walls
AirGreen solution: we used a vacuum drilling system to penetrate the masonry without damaging it, reinforced with anchor points.
Challenge: restricted on-site work hours (7 a.m. to 5 p.m. only)
AirGreen solution: our teams worked in rotation to maintain constant site presence while respecting the building owner’s access hours.
Challenge: protect servers from overheating during installation
AirGreen solution: we installed a temporary portable air conditioner in the server room on Day 1 to ensure uninterrupted operation.
Why trust AirGreen for your HVAC projects in Montreal?
At AirGreen, we don’t just install air conditioners. We provide tailor-made technical solutions, adapted to the specific realities of each building, whether it’s a private residence, commercial space, or office building. Our team is trained to work quickly, efficiently, and always in compliance with the highest HVAC industry standards.
We serve the entire Greater Montreal Area, including Laval, Longueuil, the North Shore, and the South Shore, offering competitive timelines and energy-efficient solutions that are often eligible for LogisVert or Chauffez Vert grants.
Practical tips for Montreal-based businesses
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Plan your air conditioning installation before peak summer heat.
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Request a free on-site assessment from an AirGreen expert.
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Think ahead with preventative maintenance to extend the life of your systems.
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Choose Inverter units with R-32 refrigerant to maximize your energy savings.
Proven expertise, a promise delivered
This 72-hour installation in Montreal is a prime example of our ability to meet the tightest deadlines, without compromising the quality of our work. We take pride in helping local businesses achieve comfortable work environments and proving, project after project, that performance, reliability, and speed can go hand in hand.
Are you a property manager, business owner, or contractor looking for a fast and dependable HVAC solution in Montreal or surrounding areas? Contact us today.