

HVAC Contractors Oshawa
ThermEnergy is proud to be Oshawa’s top choice for HVAC service and installation. We are dedicated to providing our customers with friendly and professional service and support for all HVAC products including furnaces, air conditioners, ductwork, and water heaters.
Our service technicians are fully licensed and certified. We offer 24/7 emergency service and a full warranty on all our work and products.
Heating and Cooling Service Oshawa
Keeping your heating and cooling system working right is our specialty. We offer complete diagnostic and repair services designed to maximize your HVAC systems performance and save you money. We offer customized HVAC system solutions to suit your home’s size and your energy usage.
WOur service technicians are qualified to repair and install all your HVAC system components including:
- Air Conditioner Installation and Repair
- Furnace Installation and Repair
- Duct and Ductless Systems
- Radiators and In-Floor Heating
- Interior and Exterior Heating
We also offer a complete line of system upgrades to maximize energy efficiency and lower your bills.


Furnace Services Oshawa
There are many things that can cause a furnace to malfunction. The most common signs there is an issue including cycling on and off, hot and cold spots in the home, or a fan blowing with no air coming through the vents. Our fully licensed team of technicians can quickly identify what is causing your system’s poor performance with advanced diagnostic tools that accurately pinpoint the problem. We can then offer professional and affordable solutions that can get your system operating properly again.
Air Conditioner Services Oshawa
When the summer hits Oshawa, it’s time to turn on the air conditioner. Hot and humid air off Lake Ontario can make the heat unbearable. ThermEnergy can keep your system running efficiently with professional service that keeps your home cool and improves your energy use.
As you get ready to switch on your air conditioner, ThermEnergy can run a multi-point diagnostic test to ensure your system is functioning the way it should.
- Checking Coolant Levels
- Identifying Electrical Issues
- Examining Hoses and Drainage for Leaks or Blockages
We will then provide you with a complete report on any adjustments that may be required and make immediate repairs so you can start enjoying your air conditioning system.


Water Heater and Hot Water Services Oshawa
Your water heater is one of the most important appliances in your home. ThermEnergy has been helping Oshawa residents make sure they are getting the best performance out of their water heater for more than 10 years.
We also offer enhanced technology designed to improve your water tank performance including anti-scale devices, lining to reduce corrosion, and digital display monitors.
We offer professional expert advice to help you make the right hot water tank choice for your home.
- Tankless Water Heaters
- Conventional Water Heaters
- Gas Water Heaters
- Electric Water Heaters
ThermEnergy can help you get the most out of your hot water heater with the technology designed to improve energy efficiency and save you money.
Why choose ThermEnergy?
Discover why Oshawa residents trust their HVAC system maintenance and repair to ThermEnergy.
Don’t forget to ask about our 10-year warranty and our 24/7 emergency service.

Service plan for Heating and Air conditioning

Furnace
$9.95
Monthly + Tax (12 Months Term)
Includes
Once a year in fall complete service
Carbon monoxide testing
Heat Exchange inspection
24/7 Customer Support
20% discount on repair
Service test report
$12.99
Monthly + Tax (No Contract)
Unlimited visit for repairs
24/7 support
Covers frequently failing parts
Majority of parts covered
30% Discount on new replacement.
Service test report
$19.99
Monthly + Tax (12Month Term)
Covers both Maintenance and protection plan.

Air Condition
$9.95
Monthly + Tax (12 Months Term)
Includes
Once a year in fall complete service
Also includes Condenser coil clean up
24/7 Customer Support
20% discount on repair
Service test report
Tune up for best performance
$12.99
Monthly + Tax (No Contract)
Unlimited visit for repairs
24/7 support
Covers frequently failing parts
Majority of parts covered
30% Discount on new replacement.
Service test report
$19.99
Monthly + Tax (12Month Term)
Covers both Maintenance and protection plan.

Furnace + Air Condition
$17.75
Monthly + Tax (12 Months Term)
Includes
Complete service on fall and spring
24/7 Customer Support
20% discount on repair
Service test report
$22.95
Monthly + Tax (No Contract)
Unlimited visit for repairs
24/7 support
Covers frequently failing parts
Majority of parts covered
30% Discount on new replacement.
Service test report
$19.99
Monthly + Tax (12Month Term)
Covers both Maintenance and protection plan.