High Efficiency provides expert heating, cooling, and indoor air quality services for commercial business owners in the Toronto & Great Toronto Area. 

We’ve been the trusted choice for GTA commercial owners since 2005. We provide 24/7 support, same-day service, and upfront pricing and 100% satisfaction guarantee. Our dedicated customer service team will respond to any service request within 4 working hours. We service all types of commercial equipment from any brand, including boilers, rooftop units, and air handlers, etc.


Commercial HVAC Services

Preventive Maintenance

Regular preventive maintenance services for commercial heating and cooling systems can reduce operating expenses and prevent unexpected breakdowns. It can also prevent costly water leaks and flooding damage, particularly for ductless air conditioners in commercial buildings.


We believe that we can only succeed when we put the customer’s interests first. This is why we don’t recommend unnecessary repairs or unit replacements. Instead, we offer our honest and professional opinions.


The experts at High Efficiency have the appropriate experience, certification, and training to recommend the best equipment and solution and install it correctly.


Projects & Case Studies

Roof Top Units Installation for Toronto Chinese Methodist Church

In March 2024, we took great pride in helping Toronto Chinese Methodist Church in replacing six 25-year-old Carrier Roof Top Units (RUTs) and installed six energy-efficient Carrier RTUs. Since 1983, Toronto Chinese Methodist Church has dedicated itself to fostering peace and abundance through its ministries in Cantonese, Mandarin, and English in the Greater Toronto Area. With increasing repair and maintenance costs, installing new RUTs just makes sense. New RTUs reduced utility costs and improved indoor air quality. As your HVAC solutions provider, we are committed to excellence in delivering quality services.


HVAC Maintenance and Emergency Repair for Medieval Times Dinner & Tournament
Medieval Times, a restaurant that provides a family-friendly experience inspired by an 11th-century feast and tournament, has been our valued customer for many years. They entrusted us with managing their heating and cooling systems. Our professional team effectively handled their cooling and heating maintenance and addressed their HVAC emergencies to keep the indoor environment comfortable and pleasant in all seasons. This has helped them create an enjoyable dining experience for their valued customers. At High Efficiency, we are honoured to offer high-quality services to our esteemed clients, ensuring their indoor comfort is always maintained.

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