Why choose MD DENNA?

Ohio State HVAC License # 46133


You need your problem solved. At MD DENNA we pride ourselves in being there when are customers need us.


No one wants to have to call a second and third time. At MD DENNA we get the job done right, the first time.


Without our customers, we wouldn't be here. We want you satisfied with our work. We want you to recommend us to your family and friends.


We are a relatively small family owned business which means our overhead is low enabling us to give our customers the best price on their service and installation of HVAC equipment. We service all makes and models of HVAC equipment as well as sales and installation of HVAC equipment.  We also offer a full line of HVAC accessories such as air filtration products and humidifiers.

At MD DENNA your safety and satisfaction are our priority. Meet the men who help make MD DENNA your choice for HVAC needs.
Mike Denna

Mike Denna

Sue Denna

Sue Denna

Denis Davis

Denis Davis

Lead Service Tech
Alan Foley

Alan Foley

Lead Installer

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Find us at the office

3566 State Rt 5, Unit B
Cortland, OH 44410


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Mike Denna
Monday - Friday 8a-5p
Emergency service: Available after hours and on weekends.

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