ONCALL Heating & Cooling: Residential & Commercial HVAC Services in GTA

Every space, whether it is residential or commercial, must have a sense of comfort, safety and focus on energy efficiency. With that mission, we at ONCALL Heating & Cooling ensure that heating Ventilation and air conditioning (HVAC) system works at its best condition in every season. Our HVAC Services include certified services and advanced tools across the Greater Toronto Area(GTA).

What Service We Provide

We are proud to provide a professional HVAC service for both residential and commercial use that includes everything from installation and repair to ongoing maintenance and emergency assistance.

Residential HVAC Services

Clean indoor air and year-round comfort are what your home deserves. Our residential HVAC services are made to guarantee long-lasting system performance, better air quality, and effective heating and cooling.

1. Heating Service

Use our professional furnace maintenance service to stay warm during Toronto’s severe winters. For all types of furnaces, we offer comprehensive maintenance, installation, and repair services. Our specialists make sure your heating systems operate economically, safely, and effectively, protecting you from unplanned malfunctions.

2. Cooling Service

Use ONCALL’s expert cooling services to beat the summer heat. We help keep your house cool and your energy costs down, whether you need air conditioning installation, HVAC system repair, or routine tune-ups. Our Richmond Hill HVAC maintenance service guarantees that your air conditioner runs as efficiently as possible and avoids performance problems.

3. Water Heater Service

For daily comfort, a dependable water heater is essential. We are experts in tank and tankless water heater installation, maintenance, and repair, ensuring constant hot water flow with low energy consumption. Our HVAC Oshawa and all of GTA ensure that your home achieves the comfort you want.

4. Boiler Service

We perform boiler services to guarantee that your system produces consistent, dependable heat. Our heating and cooling Mississauga and all of GTA service install, inspect, and repair boilers to increase energy efficiency and extend the life of your equipment. 

5. Heat Pump Service

Our heat pump service includes installation, repair, and routine maintenance for year-round heating and cooling in a single, effective system. In Toronto homes, heat pumps provide an economical and sustainable means of controlling the temperature.

6. Ductwork Service

To enhance indoor air quality and airflow, our heating and cooling Whitby and other regions offer expert ductwork installation, sealing, and cleaning services. Your entire heating, ventilation, and air conditioning system will operate more effectively if the ductwork is done correctly.

7. Fireplaces & Gas Hook-Ups

In order to maintain a balance between functionality and safety, our team also installs and maintains gas dryer hook-ups, gas stove hook-ups, and fireplaces. Every installation is finished in accordance with regional energy and building codes.

8. Humidifiers & Air Quality Systems

Comfort and productivity are significantly impacted by indoor air quality. To maintain a healthy indoor environment, we offer ventilation upgrades, air purification systems, and humidifier installation.

Commercial HVAC Services

ONCALL Heating & Cooling provides the consistent comfort and high-quality air that businesses require. Everything from new installations to emergency repairs and preventative maintenance is handled by our commercial HVAC specialists.

1. Commercial Maintenance

We provide all-inclusive HVAC maintenance service plans designed for workplaces, shops, dining establishments, and commercial buildings. Frequent tune-ups and inspections maximize system performance and avoid expensive malfunctions.

2. Commercial Installation

Do you require a new system? Gas furnaces, rooftop units, and central air conditioners are among the commercial heating and cooling systems in which we specialize. Our certified air conditioner installation Mississauga specialists make sure your system satisfies all requirements for efficiency and commercial safety.

3. Gas Furnaces & Rooftop Units

In large buildings, we install, repair, and maintain rooftop HVAC units and commercial gas furnaces to ensure reliable temperature control. Our solutions keep operations running smoothly while minimizing downtime.

4. Central Air Conditioner Services

To keep your workspaces cool, cozy, and energy-efficient, ONCALL Heating & Cooling provides professional commercial central air conditioning services. From furnace repair in Pickering to fast Ajax air conditioning repair, our certified technicians ensure smooth performance with minimal downtime. 

Where We Are Located

ONCALL Heating & Cooling proudly serves homes and businesses across the Greater Toronto Area (GTA). You will get: 

• Full-service residential and commercial HVAC repair and maintenance in Toronto.

• Reliable heating and cooling solutions for homes and businesses in Richmond Hill.

• Professional HVAC Pickering system repair and seasonal maintenance services.

• Comprehensive heating, ventilation and air conditioning services for all property types in Ajax.

• Emergency and scheduled HVAC maintenance service for efficient indoor comfort in Whitby.

• Expert residential HVAC repair and furnace maintenance service in Oshawa.

• Affordable HVAC Brampton services and quick-response HVAC emergency repair.

• Complete residential HVAC maintenance and commercial system support in Mississauga.

• Delivering reliable HVAC installation and maintenance for homes and businesses in Markham.

• Your trusted local experts for heating, cooling, and HVAC emergency repairs in Stouffville.

• Providing top-quality residential and commercial HVAC services across Aurora.

• Ensuring year-round comfort with expert HVAC system repair and maintenance in Newmarket.

• Offering complete heating, ventilation, and air conditioning solutions for Vaughan residents.

• Keeping Woodbridge homes and offices comfortable with efficient HVAC service and repair.

• Fast, professional HVAC maintenance and repair services for the Malton community.

Our local teams are available by phone for anything from HVAC emergency repair in Whitby to furnace installations in Mississauga. Experienced technicians work in each service area, offering timely, superior solutions that are customized to meet your unique climate requirements.

Stay Comfortable Year-Round with ONCALL

ONCALL Heating & Cooling guarantees consistent comfort with dependable HVAC services, whether you’re in a busy office in Brampton or a comfortable home in Toronto. We provide dependable comfort throughout the Greater Toronto Area, from boiler and heat pump services to furnace maintenance and cooling repairs.