LICENSED & INSURED

Commercial Heating & Cooling Toronto

Banquet halls, retail stores, offices and warehouses hold a steady temperature year-round when heating and cooling are sized together, and Cold Fuel installs, replaces and maintains both across Toronto and the GTA. One company also looks after your refrigeration, so every system has one point of contact.

  • One Contractor for HVAC and Refrigeration
  • Seasonal Tune-Ups Before Winter and Summer
  • 24/7 Line for No-Heat and No-Cooling Calls

Commercial HVAC

Professional Commercial HVAC Installation for GTA Businesses

Heating and cooling equipment in a commercial building works as one system. The heat source, the cooling equipment, the ventilation and the controls have to be sized together, or the building ends up too warm in one zone and too cold in another. Cold Fuel installs and maintains commercial HVAC systems for businesses across Toronto and the GTA, from a single unit heater in a loading bay to rooftop units, make-up air units, heat pumps and split and packaged systems that serve a whole building.

  • One system design: heating, cooling and ventilation sized together from your building’s heat loss and heat gain.
  • Equipment matched to fuel and use: gas, electric and heat pump options compared for your operating hours.
  • ODP/ODS-certified technicians: refrigerant recovered and charged to specification on every cooling installation and replacement.
  • Manufacturer’s warranty: every new unit carries the manufacturer’s coverage, set out in writing with the quote.

Ontario Incentives That Can Cover Part of an HVAC Upgrade

Two Ontario programs offer incentives for commercial heating and cooling upgrades in 2026. The IESO’s Save on Energy Retrofit program lists unitary air conditioners, unitary air-source heat pumps, advanced rooftop unit controls and demand control ventilation among its eligible measures.

Enbridge Gas offers incentives from January 1 to December 31, 2026, for equipment such as hybrid rooftop units, condensing make-up air units, heat and energy recovery ventilators and air curtains. Program rules change, so we check the current lists when we compare equipment for your building, and you decide whether an incentive is worth applying for.

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Since 2010 Top Rated Mechanical Services
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Trusted by 500+ businesses across Ontario

Same-Day HVAC Service Licensed & Insured EPA-608 • NATE-Certified Residential & Commercial

services

Systems We Install, Repair and Maintain in Toronto

Heating and cooling are two of the six systems we look after for Toronto businesses, and one company covers each of them from installation to maintenance.

Walk-In Freezer

Freezer rooms built and started up alongside the HVAC in your building.
Walk-In Freezer
Repair Installation Maintenance

Commercial Fridge

Prep tables and reach-in coolers installed and kept at their set temperatures.
Commercial Fridge
Repair Installation Maintenance

Commercial Heating

Unit heaters, make-up air and rooftop heating installed for Toronto winters.
Commercial Heating
Repair Installation Maintenance

Commercial Cooling

Split and packaged air conditioning sized to the cooling load of each zone.
Commercial Cooling
Repair Installation Maintenance

Rooftop AC Unit

Rooftop units replaced on the existing curb to minimize downtime.
Rooftop AC Unit
Repair Installation Maintenance

Commercial Freezer

Upright and chest freezers set up for overflow and back-of-house storage.
Commercial Freezer
Repair Installation Maintenance

Brands we work with

True Refrigeration, Atosa, Silver King, Randell, QBD, Omcan, Nella, Master-Bilt, Manitowoc, Kelvinator, Ice-O-Matic, Hoshizaki, Habco, Beverage-Air, Arctic Air, KeepRite, Copeland and Trenton. Our technicians also service the rooftop and cooling equipment in the same buildings, so one company handles both the refrigeration and the HVAC on your site.

Heating and Cooling Options

Heating, Air Conditioning and Ventilation Equipment We Install Most

Most commercial buildings in the GTA run a mix of the equipment below. We recommend the combination that suits your floor plan, fuel supply and operating hours.

Packaged Systems

Packaged units hold the whole system in one cabinet and can sit on the roof or on a pad at grade. With everything in one place, service and replacement are simpler than on a split system.

Get a Quote for This Unit

Why Us

Why GTA Facility Managers Choose One Contractor for HVAC and Refrigeration

Cold Fuel has handled commercial refrigeration and HVAC for Toronto businesses for more than 15 years, so heating, cooling and refrigeration faults are diagnosed by technicians who know how the systems affect each other.

Expertise & Experience

Technicians trained on heating, cooling and refrigeration equipment.

Tailored Solutions

Equipment chosen for your fuel supply, floor plan and business hours.

Rapid Response Support

24/7 HVAC service for no-heat and no-cooling calls across the GTA.

Ventilation and Controls

Electrical, Drainage and Airflow Problems We Repair

Ontario’s Building Code requires buildings to be supplied with outdoor air, with the amount set by ASHRAE Standard 62.1 procedures. That outdoor air has to be heated in winter and cooled in summer, so it belongs in the heating and cooling calculation from the start.

Our technicians set up thermostats and control panels, check the outdoor air dampers and confirm that each zone heats and cools as designed. Where a building has several units, we coordinate their set points so they don’t heat and cool the same space at the same time.

01
Control Panels and Thermostats

Control Panels and Thermostats

Schedules and set points that run equipment only when the space is occupied.

02
Outdoor Air

Outdoor Air

Dampers and economizers set to bring in the air the space needs.

03
Electrical Supply

Electrical Supply

Disconnects and wiring sized to the heating and cooling equipment.

These are the heating and cooling problems we see most often:

  • Uneven temperatures: zones too hot or too cold because equipment or airflow was never balanced.
  • No heat on the first cold day: igniters, flame sensors or gas valves that fail after a summer off.
  • Weak cooling: a low refrigerant charge, dirty coils or a worn compressor that cuts capacity in July.
  • Short-cycling: oversized equipment that turns on and off constantly and wears out early.
  • Rising energy bills: clogged filters, failed economizers and old thermostats that run equipment longer than needed.
  • Noisy equipment: worn bearings, loose belts and failing fan motors.

Brands we work with include KeepRite, Copeland and Trenton. Our clients include property managers and facility teams at banquet halls, retail stores, offices, supermarkets and warehouses.

How We Price a Commercial Heating and Cooling Project

Each building has a different load, layout and fuel supply, so we price heating and cooling work after a site visit rather than over the phone. The estimate is free and carries no obligation. The written quote lists the equipment, the installation and any electrical or ductwork changes, and nothing starts until you approve it.

What affects the cost:

  • Equipment type, capacity and efficiency
  • Number of zones and how they are controlled
  • Electrical, ductwork and venting changes
  • Roof access, lifts and work outside business hours

The City of Toronto issues a stand-alone mechanical (HVAC) building permit for heating, ventilation and air conditioning work in commercial buildings, and the application asks for heat loss and heat gain calculations. Where your project needs one, build the permit into your timeline.

Repair or Upgrade

Replace the Part, Not the System, Until the Numbers Say Otherwise

A single failed component, such as a fan motor, igniter or contactor, is usually worth replacing on commercial heating and cooling equipment under 10 years old. Once a system reaches 10 to 15 years and major parts keep failing, a replacement usually costs less over the next few seasons than repeated emergency calls. A new system also lets you move to an energy-efficient heat pump or hybrid setup and add better controls. We give you the repair and replacement figures side by side, including estimated energy costs, and you make the call.

Stainless steel commercial refrigerators in a kitchen

Looking for Parts?

Reach out for expert support, fast sourcing, and competitive pricing.

(647) 689-5944

Commercial Heating and Cooling Toronto and the GTA

Technicians based at our Concord, Etobicoke, Mississauga and Toronto offices reach sites across downtown Toronto, North York, Scarborough, Vaughan, Markham, Richmond Hill, Mississauga and other communities across the Greater Toronto Area.

  • Banquet halls and hospitality: heating and cooling that keep up with full rooms and kitchen exhaust.
  • Retail stores and plazas: rooftop units and thermostats set to opening hours.
  • Offices and medical clinics: quiet, balanced comfort in occupied spaces.
  • Warehouses and industrial facilities: unit heaters and make-up air for open floor areas and loading docks.

Schedule Your Pre-Season HVAC Check

Tell us which areas run too hot or too cold, how old your equipment is and what fuel it uses, and we’ll send a technician to prepare a free, no-obligation estimate.

Structured. Precise. Reliable.

How a Heating and Cooling Installation Runs

From the first call to the final temperature check, every repair follows the same four steps.

Load and site review

We measure the space, review the existing HVAC equipment and calculate heat loss and heat gain for each zone. Occupancy, operating hours, outdoor air and the building’s fuel supply all go into the calculation before any equipment is chosen.

System proposal

You get equipment options for your building, such as rooftop units, split systems or heat pumps, with the pros and cons of each, estimated operating costs and any incentive that applies. Nothing is ordered until you approve the written quote.

Installation

Our technicians set the equipment, run refrigerant lines for the air conditioning and heat pump systems that need them, and wire power, thermostats and control panels. Ductwork connections are sealed, and work in occupied spaces is scheduled around your business hours.

Commissioning

We run the system in heating and cooling modes, check temperatures and airflow in each zone, and check that the outdoor air dampers and safety controls work. Before handover we set the schedules and set points and go through the routine maintenance plan with you.

Technician wearing safety glasses servicing equipment
TSSA Level-1 certified technicians Code-compliant refrigeration connections
Trusted by Businesses Across Industries
Restaurants Bars Bakery Catering Supermarkets Grocery Stores Warehouses Hotels

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faqs

Frequently Asked Questions

It can be, as long as it is sized for Toronto’s winter design temperature. Where a heat pump’s output drops in the coldest weeks, a hybrid setup with gas backup or supplementary heat keeps the building warm.

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Our Service Areas