O'Donnell Heating & Air Conditioning Inc - Buffalo

I had my furnace & AC unit replaced and I was extremely happy with the workmanship and professionalism of this company. This was my first time using O’Donnell heating & Cooling and I was very pleased. The office manager is very nice to communicate with - great attitude - the installation team is very good, they showed up on time and did quality work & cleaned up like pros. Jim the owner is a super nice person to deal with. 5 stars — Thanks to the O’Donnell team.

I had a new lennox furnace/ac installed, replacing my 32 year old model. ( I got my money's worth out of that one) Jim came out and gave me a good value for the price of the unit I selected. The unit was professionally installed when promised and right now I am sitting in comfort on a 85* day .

Tim, Nick and Phil were excellent. The installation was quicker than expected. We are very pleased. Too bad when two years ago our AC compressor died in June and we called your company, we were told the first appointment available was mid August! That was testimony to your client base and quality of O’Donnell services. Musso Heating & Cooling gave us a contractor grade Goodman compressor that is very low efficiency and was over priced. Pity! Thank you again for the quality service provided!

We had a new furnace and ac unit installed by O’Donnell Heating and Cooling. Jim O’Donnell was great to work with, very fast to respond and get the old unit up and running. Fair and honest, would highly recommend

I purchased a new furnace through O'Donnell. First I called for service on my old one because the thermostat kept saying it was running but nothing was coming out of the vents. The owner came out within a day and checked himself and informed me it was clogged and on it's last legs (20+ yrs old) so he recommended a new unit. I scheduled that with him and they were available within a couple of days. The team showed up when they said they would and had everything installed within a couple hours. One of the guys stayed behind and went through everything with me, including the National Fuel rebate process. Super friendly, clean, professional, and extremely responsive when making appointments. I'd recommend them to anyone!

Jim & the entire team at O'Donnell Heating & Air Conditioning are professionals! They truly care about customer service and treat you like family! The installation team was awesome! They were very respectful of our house and worked quickly to install the AC system. Once installed they made sure we were completely satisfied with their work. I would highly recommend O'Donnell Heating & Air conditioning to family and friends! Thank you for a job well done!

Our furnace acted up during the coldest week of the year and O'Donnell was there within a day. They gave us a quick repair to get us through until we chose the new furnace we wanted. They showed up on time and were incredibly professional in the installation. We wouldn't' go anywhere else for our HVAC needs.

O’Donnell’s Heating and Cooling is an amazing company. During the blizzard my furnace kept going out. I called them after to do a tune up. My furnace was leaking carbon monoxide and they had a new one installed in less than 48 hours. Keeping my family safe. Great and reliable company!

I could not be happier with my O'Donnell experience. I was able to schedule an estimate and installation very quickly and got AC and a new furnace installed for a surprisingly reasonable price. The installation techs showed up at the time they were scheduled and got all of the work done in less than a day. They were professional and the work was flawless. If you are looking for an HVAC contractor, I highly recommend O'Donnell.

Installed new HVAC unit. Very satisfied with service and installation. Price was very competitive compared to other HVAC companies. Also did my daughter Amanda's system in Tonawanda. I would highly recommend them. John Cesari Orchard Park NY