Hvac Oshawa
Your #1 Choice For
We've got prestigious awards for our work
Turning up the chill factor in your home or office
Our company, ONCALL Heating & Cooling, believes that comfort is an essential requirement rather than an optional luxury. Your space’s indoor climate remains perfectly positioned whenever you need it to be – safe, comfortable, energy-efficient, no matter which season is happening outside.
- Ventilation System Maintenance
- Indoor Air Quality Testing
- Cool Craft Custom Solutions
Your Trusted Residential & Commercial HVAC Partner – Serving All of Oshawa
ONCALL Heating & Cooling is a licensed, bonded, and insured HVAC company that has been in business since 2005. Heating, cooling, and gas services for homes and businesses are our area of expertise. Whether you’re battling a frigid winter or a scorching summer, our HVAC Oshawa service has the perfect solution.
Complete Residential and Commercial HVAC Services in Oshawa
At On Call Heating & Cooling, we provide a full spectrum of heating, cooling, ventilation, and gas services to residential homes, businesses, offices, and commercial properties across Oshawa. Whether you need a simple furnace repair, full AC installation, or a custom HVAC setup for your commercial facility, our experts are here to serve.
We approach every project with precision, safety, and attention to detail, ensuring that our work meets local building codes, energy standards, and your expectations. Our furnace repair Oshawa team is experienced in handling both small-scale and large-scale projects and can manage everything from equipment upgrades to new HVAC system designs.
Licensed & Insured
All kinds of heating and cooling systems, including multi-zone setups, rooftop units, and contemporary energy-efficient models, can be serviced by our certified gas fitters and HVAC technicians. Every member of our staff is professionally certified and up to date on HVAC Oshawa compliance standards, and we adhere to stringent safety regulations.
All our services are performed by fully licensed, bonded, and insured technicians. Whether you’re replacing an old furnace, installing a ductless air conditioner, or setting up HVAC systems for a new commercial site, ONCALL Heating and Cooling Oshawa delivers excellence with full regulatory compliance and safety-first practices.
Reliable, On-Time HVAC Project Management
We at ONCALL Heating & Cooling take deadlines and your comfort very seriously. We offer frequent progress reports, open communication, and professional advice at every stage of your HVAC project, guaranteeing a smooth experience for both businesses and homeowners. We’re dedicated to using the newest equipment, procedures, and energy-saving technologies to meet your heating and cooling needs on schedule and within your budget. Our heating and air conditioning Oshawa focuses on providing comfortable and trustworthy service.
Our Residential HVAC Services in Oshawa Include:
- Heating Services: Furnace repairs, installations, seasonal tune-ups, and efficient heating solutions
- Cooling Services: Air conditioner installations, repairs, and central cooling systems
- Water Heater Services: Tank and tankless systems installed, maintained, and repaired
- Boiler Services: Full boiler diagnostics, maintenance, and replacement
- Heat Pump Services: Energy-saving hybrid systems for year-round comfort
- Ductwork Services: Custom duct design, sealing, cleaning, and airflow optimization.
Our Commercial HVAC Services in Oshawa Include:
- Commercial Maintenance Plans
- Commercial HVAC Installations
- Gas Furnace Repairs & Installations
- Humidifier Installations
- Gas Stove Hook-Ups
- Gas Dryer Hook-Ups
- Gas Fireplace Installations
- Central Air Conditioning Systems
- Rooftop Unit Installations and Repairs
Our Services Cover a Wide Range of Commercial Properties:
- Office Buildings
- Clinics & Medical Offices
- Warehouses
- Retail Stores & Shopping Units
- Factories & Workshops
- Apartment Buildings
- Condominiums
- Hair & Nail Salons
- Commercial Garages & Underground Parking
- Restaurants, Cafes & Commercial Kitchens
Other Services
All Service Locations in Canada
The On Call Heating & Cooling Difference
- We respond quickly to your calls and service requests
- We respect your schedule and provide flexible service hours
- We respect your property and workspace—leaving it clean and safe
- We work within your budget and offer competitive, transparent pricing
- We seek opportunities for cost-savings and energy efficiency throughout the project
We’ve earned the trust of hundreds of customers across Oshawa through our dedication to doing the job right the first time—with comfort, safety, and performance at the core of everything we do.
Need Heating or Cooling Service in Oshawa? We’re On Call.
Whether it’s time for an upgrade, emergency repair, or new installation, ONCALL Heating & Cooling’s air conditioner repair Oshawa team is ready to help. We’re proud to serve all of Oshawa and nearby areas with HVAC solutions that last.
Call us today to schedule a free consultation.
Experience Oshawa’s trusted HVAC service—ONCALL, always on time.
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