Original Donnelly

Original Donnelly – where customers have sent their friends since 1898. The only family of the ORIGINAL Donnellys in the heating and cooling business still operating today. Our forefathers brought an honest work ethic that is often overlooked in today’s workplace. We recognize this and instill these values and ethics into our employees today. This is a large part of why we have been in business for so long. There are very few companies that say that they are still family owned and family operated for more than 115 years.

One thing that has not changed is our commitment to you, the customer.

Our employees don’t work for us, they work for you.

  • Today, we are proud to continue our grandfather’s legacy.
  • We are a Carrier Factory Authorized Dealer and a Mitsubishi Diamond Dealer.
  • We answer the phone 24 hours a day, 7 days a week.
  • We are fully insured and licensed – State License #21505 and #21508.NATE (North American Technician Excellence) Certified Service Technicians.
  • Installation and Service Technicians attend weekly training.
  • All of our service vehicles are identified with the Original Donnelly name.
  • All of our Service Technicians wear company uniforms.
  • One year Buy Back Guarantee on new Carrier installations.
  • 24-hour Emergency Service, seven days a week.

Stay Connected


Email: service@originaldonnelly.com
Local (216) 961-6800
Toll-Free: 1-800-369-8999
Fax: (216) 961-8702
5197 West 137th Street
Cleveland, OH 44142