Outselling our competition simply for being honest, O'Donnell Heating & Air Conditioning, Inc. represents 63 years of integrity. Our professional vehicles are a familiar sight on the streets of Tonawanda. We provide affordable, effective and long-term solutions to sub zero winter temps, sky-high summer conditions and issues with excessive and insufficient humidity. From heating and cooling components to the ductwork and thermostat, we focus on the products and strategies that make worthwhile improvements.

Fully licensed and insured, O'Donnell Heating & Air Conditioning, Inc. upholds recognition as a Lennox Premier Dealer. Our team brings a depth of knowledge to the job. Trained in technological advances as they emerge, we are your source for cutting-edge innovation in temperature control and indoor air quality. The result is automated system management, unprecedented energy efficiency, year round comfort and healthy living space at less expense.

Give O'Donnell Heating & Air Conditioning, Inc. a call for service of all makes and models, two-year repair guarantee, cost-effective seasonal maintenance, oil to gas conversion, UV lights, air purifiers, sheet metal fabrication, duct repairs, zoned heating, garage heating, furnaces, air conditioners and so much more. We optimize the equipment performance through exacting standards of workmanship. We take better care of our customers across Eggertsville, Amherst, Snyder, Williamsville, Buffalo, Tonawanda, Cheektowaga, Depew, and Lancaster, NY. With 24/7 emergency availability, we’re always up to the challenge.