Enjoy Year-Round Comfort in Westland, MI

Trust our local HVAC company with your HVAC repairs

Are you tired of shivering at the dinner table? Sick of waking up covered in sweat? Bring your home's temperature back under control with an HVAC repair service from Onnit Heating and Cooling LLC in Westland, MI.

Our HVAC contractor can get to the bottom of your HVAC troubles. On top of our excellent repair services, we also provide heater and air conditioner replacement services. Our local HVAC company makes it easy to swap out your old equipment for something much more modern and efficient.

Contact our HVAC contractor today to learn more about our services.

Why work with Onnit Heating and Cooling?

At our local HVAC company, we work hard to figure out exactly what's wrong with your HVAC system. This extra dedication to solving your problems means you get the best results possible every time.

You can count on us to service your HVAC unit because we:

  • Have over four years of experience
  • Are fully licensed and family-owned
  • Provide top-notch customer service
  • Pride ourselves on honesty and accuracy

Pick an HVAC company that goes the extra mile to fix your HVAC troubles. Get in touch with us now to get started.



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Keep your unit running for longer

In addition to our HVAC repairs and replacements, we can make sure your unit stays working with regular HVAC maintenance. We'll come and inspect your unit for any potential issues.

During our maintenance checks, we'll also replace your filters for you. With a service contract, you can be confident that you'll get reliable maintenance at a fair price without any hidden fees.