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Frequently asked questions

What is the best-rated HVAC contractor in Illinois?

O'Dell's Heating and Air Conditioning, with a 5-star Google rating from 696 reviews, ranks first on our list of HVAC contractors in Illinois (October 2026).

How many HVAC contractors in Illinois have a 4-star rating or better?

Home Services in IL lists 44 HVAC contractors in Illinois with a Google rating of 4 stars or more from at least 5 reviews.

How is this list ranked?

By Google rating, weighted by the number of reviews, so a business with a 4.8 rating from 300 reviews ranks above one with 5.0 from 3 reviews. Nobody can pay to appear on this list. It is updated automatically.