Commercial HVAC Services

Summers and Smith Cooling & Heating Limited provides reliable and trusted commercial HVAC solutions across York Region.

Summers and Smith Cooling & Heating has been providing commercial services and installations to companies in the Greater Toronto Area for 50 years. With our commercially trained technicians, installation crews, and project managers, you can depend on our team to provide effective heating, air conditioning, and ventilation solutions for your business.

Our commercial team will diagnose, repair, maintain, and install a comprehensive list of HVAC equipment. Our crews have been both field and manufacture trained, and are continuously learning and applying their education to provide prompt, accurate, and specialized services.

Equipment Replacement

Looking to upgrade or add additional HVAC equipment, or increase your indoor air quality? Summers and Smith Cooling & Heating provides complementary replacement and supplementary estimates for:

  • Rooftop Units
  • Boiler and hydronic systems 
  • Ductless split heat pumps and cooling only units
  • Overhead heating (unit, tube, and radiant heaters) 
  • Exhaust Fans
  • Makeup air units 
  • Domestic hot water heaters 
  • Air purification HEPA or UV systems 
  • Humidification and dehumidification equipment 
Contact our commercial installation department for your complementary assessment and estimate today.
commercial hvac units

New Construction and Building Renovations

Specializing in hydronic systems, duct design, commercial equipment, and controls, Summers and Smith’s commercial applications department works one-on-one with project managers, engineers, and contractors, to ensure your new building and renovation developments are fully met. Using and considering; time management skills, budgetary constraints, quality control, and professionalism, our management strategies and technical abilities provide a seamless approach in advancing your HVAC project objectives.

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Service and Maintenance

Our technicians are fully-licensed, and trained in; diagnosing, repairing, and maintaining all styles and applications of HVAC equipment. Repairs are completed timely, and effectively, while guaranteeing overall customer satisfaction.

We understand the importance of limiting downtime, Summers and Smith provides emergency and priority services for all of our commercial clients. Contact us today to ensure your business stays operating efficiently and comfortably.

Our preventative maintenance programs ensure your commercial equipment and systems are functioning at optimal performance year-round. Providing full detailed inspection reports, along with filters changes, photos, and equipment details, our custom designed maintenance programs ensure your company and building are ready for the change in seasons.

Contact our team today for your complementary preventative maintenance proposal:

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Commercial Products

Lennox Packaged Rooftops

The new Model L™ rooftops feature the revolutionary Lennox® CORE Unit Controller and advanced variable-speed technology to maximize energy savings. But that’s just the beginning.
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Daikin Packaged Rooftops

The DBG Packaged Rooftop Units are built to perform, with features and options that provide lower installation and operating costs, superior indoor air quality, quiet operation and longevity.

6 Tons
15 – 25 Tons

Lennox LF24

The LF24 Lennox® unit heater is ideal for a wide range of commercial applications. Several heating capacities are available make it easy to keep both small and large spaces comformtable.
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GASMAC Tube Heater (GM & GMU)

If you need to provide an efficient, comfortable heat to a shipping area, a retail space, an entry way, or an entertainment facility, the Gasmac radiant tube heater is the answer.
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Mitsubishi P-Series

Designed to meet the needs of light commercial and residential applications, these single-zone systems are perfectly suited for mechanical/electrical areas where critical cooling is needed.
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Daikin – LV / NV Series

Designed to meet the needs of light commercial and residential applications, these single-zone systems are perfectly suited for mechanical/electrical areas where critical cooling is needed.


LV Series
NV Series
Rinnai Demand Duo H-Series

Rinnai Demand Duo H-Series

When maximum performance and high efficiency are critical, the Rinnai Demand Duo H-Series condensing commercial hybrid water heating system delivers. Customers never miss a beat with hot water, whether it’s brief, high-spike draws or continuous, heavy use.
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Lennox HEPA Series

A Healthy Climate® HEPA system is capable of removing nearly all allergy-aggravating contaminants, including some of the smallest particles and bacteria.
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Daikin – DAP

The Daikin Air Purifier is designed to improve indoor air quality (IAQ) and help reduce the risk of airborne contaminants within indoor spaces including classrooms, dental offices, clinics and more.
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