Welcome to Oncall Heating & Cooling Company.
Expert HVAC Technicians Delivering Quality Heating Ventilation and Air Conditioning Solutions
Heating & CoolingMaintenanceYour #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
Residential Services
Commercial Services
Trusted Brands We Work With
Our company selects brands with strong reputations for high performance and durability among customers. These include:
Get in touch with us
Get in touch with us
Recent Blogs
Top Signs Your Furnace Needs Repair Before the First Snow
Top Signs Your Furnace Needs Repair Before the First Snow…
5 Furnace Maintenance Tips Every Ontario Homeowner Should Know Before Winter
5 Furnace Maintenance Tips Every Ontario Homeowner Should Know Before…
ONCALL Heating & Cooling: Residential & Commercial HVAC Services in GTA
ONCALL Heating & Cooling: Residential & Commercial HVAC Services in…
- Why Choose Us
Relax we ve got your air climate covered
24/7 Online Support
Always available to answer your questions and handle service requests.
Expert HVAC Team
Our certified technicians deliver professional, efficient, and safe service every time.
Affordable Pricing
We offer competitive rates without compromising on quality or reliability.
Licensed & Insured
Peace of mind guaranteed—our work meets all local codes and safety standards.
- FAQ
Frequently Asked Questions
Air conditioning system is best for your home Our FrostFree Consultation air a service provides expert guidance tailored to your specific needs.
Difference Between Central AC, High Velocity AC and Split Ductless AC?
Central AC cools your whole home through ducts; High Velocity AC uses small, flexible tubing for older homes; Split-Ductless AC cools individual rooms without ducts using wall-mounted units.
Is a split-ductless AC better than a window unit?
Yes, split-ductless ACs are quieter, more energy-efficient, and provide better cooling without blocking windows like traditional window units.
What is a heat pump?
A heat pump is an efficient device that provides both heating and cooling. It moves heat rather than generating; it transfers heat from outside to inside and vice versa, depending on the season.
ONCALL Heating & Cooling delivers quick, dependable heating solutions at cost-effective prices to all properties.
Heating Service