Reviews for On The Mark Heating and Air

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  • January 2026

    I’m a huge fan!! Mark, Kelsey, Chris, Omar and the entire On the Mark team are AMAZING! I’m a new homeowner and quickly discovered the HVAC system was in terrible shape. Faulty fuses caused my air conditioning to fail in the summer and my heat to go out in the winter! It was a nightmare! When I contacted On the Mark Heating and Air, everything changed. From the moment I met Mark, the owner, and his team, I knew I was in great hands. After several emergency repairs, we decided it was time to replace the entire system. Mark sat down with my wife and I to have an honest, straightforward conversation about my options and recommended the perfect high-efficiency system... read full review

  • June 2026

    Chris with In the Mark Heating and Air has been servicing our home for the past 6 years and is very thorough, professional and knowledgeable. It’s a reassuring feeling to know we are in great hands!

  • June 2026

    Ryan came out to my house and did an excellent job at getting my ac back up and running. He followed up with me afterwards to make sure it was still running smooth. I recommend On The Mark to anyone needing HVAC repairs.

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    On The Mark Heating and Air

    2200 Stonington Ave Suite 110, Hoffman Estates

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