Commercial & Residential – When your comfort can’t wait, we’re on the way. 24/7 service for Central Illinois

Heating

Stay warm all winter with us.

Cooling

We keep you cool when it’s hot.

Maintenance

We keep your systems running smoothly.

Refrigeration

We specialize in commercial refrigeration services for walk-in coolers and freezers for your business.

Ice Machines

We offer expert repair, cleaning, and new installation for all types of ice machines.

Ventilation

We provide professional installation of new furnaces, air conditioners, and complete HVAC systems. We pride ourselves on quality and customer satisfaction.

WE ARE HIRING!

Looking to join the team? Please contact brayden@greghahnhvac.com for inquiries or call the office at 217-428-4545.

Contact us today for all of your
home and commercial needs!

Contact Us Now

WHAT OUR CLIENTS SAY

They are wonderful! Prompt, courteous, and they know what they are doing! Will sure call them back.
Star ,   Google
We had issues with our compressor unit not keeping up. The service we received was excellent, prompt, and friendly. I have always used Hahn Heating and Air for these reasons.
John ,   Google
Great company. Easy to work with. They take care of their customers.
Robert ,   Google

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