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Amherst-based O'Donnell Heating & Cooling Inc has become a trusted cooling & heating company for service in the Buffalo, NY, region. If you are looking to have a new furnace installed in your home or perhaps your air conditioner needs a repair this season, we are the company to call.
William —
I thought that everyone at O'Donnell was very professional, from the owner Jim to the installers. I am very pleased with
John Lock Air Conditioning and Heating Service Inc. is a third generation company. We have been serving customers for 50 years! Keeping your heating a cooling system efficiently functioning is easier than you think when you choose John Lock Air Conditioning & Heating Service Inc.
Paul Runfola —
My entire experience with John Lock Heating and A/C was fantastic from start to finish. The estimate process from Mike was
