Air Conditioning

We Know Air Conditioning Inside and Out

Air Conditioning Repair, Service & Installation in

Illinois & Indiana


Tech One Heating and AC has been providing reliable air conditioning services to the Northwest Indiana and the South Suburbs of Chicago for over 20 years. When it comes to keeping your home or business running smoothly in the summer, we know what it takes to assess and upgrade your ac units when necessary.

Quality AC Installation

When it comes to installing AC units there is certainly a difference between average and great installers. When an AC unit is poorly installed it can become a nightmare for both businesses and homeowners. Your bills could go up as energy can be wasted and your costs go up. Our team of AC experts can help.

Quality AC Installation — Saint John, IN — Tech One Heating and AC

Trusted AC Repairs

When your ac unit seems to be experiencing some problems, we quickly perform a clean & check for you to assess what the issues may be and how we can proceed from there. Our mission is to make your life easier when things go wrong with your HVAC units.

We Can Cover It All

We provide service and accommodate our customers. We can work with your rebates, warranties, and financing to get you a properly running highly efficient ac unit that does the job it needs to do consistently.

If you are looking for HVAC contractor to complete your AC inspection, repair, or installation give us a call at 708-979-9598 to get your free estimate today.

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