A powerful and quiet HVAC solution expertly installed on a residential roof in LaSalle
At AirGreen, we know that every installation is unique, especially when it comes to integrating a wall-mounted heat pump on a residential flat roof , as was the case for this project in LaSalle . Our client was looking for a reliable and energy-efficient solution to ensure optimal thermal comfort all year round, even in Montreal's winter. We recommended the SHARP ZU1 – 18,000 BTU , a model that combines performance, silence and energy efficiency, perfectly suited to Quebec's harsh winters.
Why the SHARP ZU1 was the perfect choice
The SHARP ZU1 heat pump is one of the most advanced models in its class. It stands out for its:
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Heating capacity down to -27°C , ideal for the climate of Montreal, Laval, Longueuil, the North Shore and the South Shore .
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Exceptional energy class with a SEER2 of 24.0 and HSPF2 of 10.0.
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R-32 technology , an eco-responsible refrigerant with low GHG emissions.
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ENERGY STAR Cold Climate certification , guaranteeing substantial energy savings.
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Built-in Wi-Fi , for smart remote control.
Key Steps to Rooftop Installation in LaSalle
Site preparation and analysis
The installation took place on a typical LaSalle residential building with a flat roof. Our team began with a structural analysis to determine the permissible load and optimal duct layout.
Securing the outdoor unit on the roof
The outdoor unit (model AE-X18ZU1) was mounted on a raised metal structure , secured with treated wood support blocks and rigid insulation (R-25) to ensure stability and avoid direct contact with the roof membrane. This type of mounting also prevents infiltration and optimizes ventilation around the compressor.
Management of pipes and connections
We carefully positioned the refrigerant (1/4 – 3/8) and electrical lines for a clean and professional finish, while respecting RBQ and CSA standards. Everything was connected to the indoor unit (model AY-XP18ZU1), installed in a spacious living room benefiting from the system's excellent airflow.
Aesthetic details and safety
The rooftop cable routing was carried out with UV-protected conduits and a securely anchored metal tripod stand for maximum durability against the elements. All visible components were organized to maintain a clean aesthetic , even at height.
Challenges encountered and solutions provided
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Roof space constraint : We used an adjustable base to maximize stability despite the restricted space between two ventilation vents.
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Duct Passage : To avoid damaging the roof membrane, our technicians used existing passage points, sealed with urethane, to ensure watertightness.
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Limited Access : Transporting the unit required the use of a portable winch to safely hoist the equipment without damaging the gutters.
An installation subsidized by LogisVert
Thanks to our administrative support, this client was able to benefit from the LogisVert grant of $2,640 , applicable to this SHARP model. We take care of everything: documentation, photo evidence, AHRI, invoice and form for a quick and validated submission.
Customer reviews and satisfaction
“Fast installation, super quiet and very efficient, even at -20°C. Thanks to AirGreen for the impeccable service!” — Aurélie R., LaSalle
Results obtained after installation
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Immediate reduction in heating costs thanks to stable performance even at -25°C.
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Significant improvement in indoor air quality , notably thanks to SHARP Plasmacluster technology.
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No noise : The unit operates at only 52 dB outdoors and 25 dB indoors.
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Seamless remote control , allowing the customer to adjust the temperature via their phone.
Why trust AirGreen in LaSalle and throughout Quebec?
At AirGreen, we don't just install. We transform living spaces , thanks to:
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Our RBQ certified expertise with over 15 years of experience in residential and commercial HVAC.
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Technicians specifically trained on SHARP, Gree, Fujitsu, Bosch models, and more.
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Responsive and transparent after-sales service , with zero deposit required, payment only once the customer is 100% satisfied.
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In-depth knowledge of provincial and federal grants available in Montreal, Laval, Longueuil, North Shore, and South Shore.
Tips for Homeowners with Flat Roofs in LaSalle
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Choose a Cold Climate certified wall-mounted heat pump for consistent performance even below -25°C.
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Install the raised unit with insulation to protect your roof membrane.
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Work with local HVAC specialists who understand the architectural constraints of buildings in LaSalle and the metropolitan area.
To remember
This installation of a SHARP ZU1 – 18,000 BTU wall-mounted heat pump in LaSalle perfectly illustrates AirGreen's expertise in the world of residential HVAC in Quebec . Whether for similar projects on flat roofs or in condominiums, we have the technical, aesthetic and regulatory solutions to make your energy saving and thermal comfort project a success.
Need a free quote in LaSalle, Montreal, or on the South Shore? Contact AirGreen today at (514) 316-2973 or by email at sales@airgreen.ca