Commercial Heating & CoolingCOMMERCIAL HEATING & COOLING

For over 94 years, Wm. E. Donnelly Heating & Cooling has been serving the commercial heating, ventilation and cooling needs of customers throughout Northeast Ohio. We offer expertise with a wide-range of systems, whether you need service, regular maintenance or installation.

Comprehensive Heating and Cooling Solutions and Repairs

Fast, affordable, and professional commercial heating and cooling service, repairs, and installation.

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Wm. E. Donnelly Heating & Cooling can provide service on most brands of commercial HVAC equipment. We specialize in maintenance and repairs on:

  • Industrial Process Water Chillers
  • Industrial Process Cooling Towers
  • Industrial Comfort Control & Heating Equipment
  • Exhaust & Make-Up Air Systems
  • Domestic Water Heating Systems
  • Commercial Comfort Cooling & Heating Systems


We offer rooftop equipment maintenance and inspection of commercial gas heating systems and air conditioning units. We also offer annual inspections and maintenance plans that fit your company’s needs and budget.


Whether you need a unit replacement or an entire system upgrade, our experts can deliver. We will meet with you, evaluate your heating and cooling needs, and find a solution that is the prefect fit for your facility and your budget. Call us for a free consultation and estimate at (216) 521–7000.

Wm. E. Donnelly Heating & Cooling

Lakewood, OH 44107
(216) 521-7000
Rick and Steve were a pleasure to work with.
Susan Wendt
I like the benefits of your maintenance agreements and the technicians are friendly and knowledgeable.
Dean Presson
The furnace is perfect for this house! My front bedroom was never warm before and now it is!
Paul Muhlstadt
Response was terrific. Work began on time and within agreed timeframe. Thank you!
Ann Cummings