Established in 1961, on the job 24/7 O'Donnell Heating & Air Conditioning, Inc. continues to thrive by always rising to the occasion. We thrive on the challenges that defeat other contractors in the area. When you call on us for HVAC service in Williamsville, we never waver in our determination to achieve a successful and satisfying outcome. Combining a depth of resources, wealth of experience and extensive training, our fully licensed and insured team of professionals always impress.

O'Donnell Heating & Air Conditioning, Inc. meets the strenuous criteria of a Lennox Premier Dealer, qualifying our technicians in a versatile selection of high-efficiency, ever-popular and industry leading heating, cooling and indoor air quality options. Sub zero winters, muggy summers, overly dry air, excess humidity, airborne contaminants and energy waste are no problem. We answer with modern technology that saves you time, money and responsibility while elevating the comfort and health of the home.

Outselling our competition simply for being honest, O'Donnell Heating & Air Conditioning, Inc. is happy to explain options. We encourage you to browse our services, ask questions and get in touch at (716) 836-8000. Oil to gas conversion, sheet metal fabrication, furnaces, air conditioners, ductless mini splits and everything from new installation to upkeep and repairs for all makes and models is our speciality. We cover our repairs with a 2 year guarantee and remain on-call for emergencies whenever you need us across Eggertsville, Amherst, Snyder, Williamsville, Buffalo, Tonawanda, Cheektowaga, Depew, and Lancaster, NY.

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