O'Donnell Heating & Air Conditioning Inc - Buffalo

We recently purchased a new AC unit and an air purifier from O'Donnell Heating and Cooling. We had wonderful service from the moment we got our quote. The install was great and the workers doing the install were very professional and polite. I dusted my home soon after everything was installed and thanks to the air purifier the dust in my home has greatly decreased. We are HIGHLY satisfied with our products and service from O'Donnell Heating and cooling and will be forever customers!

The two Technicians arrived on time and went right to work. I needed both a new furnace and AC; and each took on his/her removal of the old unit and installation of the new one. They even took their shoes off when installing the new thermostat! Dawn had the paperwork and manuals all together at the end.
Super pleased with the professional workmanship and interaction of the technicians. I would recommend O’Donnell to anyone who demands expert and reliable units and installation!

When our air conditioning decided not to work just the first hot spell of the season hit, we had to act fast. After calling a few different companies, O'Donnell was able to come out to our house the earliest. Plus they had a lower service call charge. Jim. the owner came out and tried a few things to get it working but it ended up being a bad compressor in a 15 yr old condenser unit. Not only that, but our furnace, still working ok, was 21 yrs old. So we decided to go with a complete Furnace-A/C package and Jim gave us a very fair price. When it came time for installation, the crew was on time, very professional and did a clean, neat install. Throughout the whole process we were impressed with everyone at O'Donnell. From the office staff, to the owner, to the install crew. Very pleased we chose O'Donnell and would highly recommend them.

Chose O'Donnell to update/replace my furnace and A/C after getting quotes from multiple companies. They arrived as scheduled and did a fantastic job - including moving the outside A/C unit to a new location. All went well and 6 months later I'm still a very satisfied customer. Highly recommend!

We are truly happy with our decision to have O’Donnell install our new furnace and central air unit. From the moment the estimate took place we new that they were the company for us. We heard from several people how great they were and that just sealed the deal. Everyone has been professional and extremely nice and seem to go out of their way to go above and beyond. There was no mess left behind, arrived on time, the team who did the installation was great, and the office staff is amazing. Thanks so much!

I'm actually writing about an experience that I had with this company over a year ago. The reason I'm writing it now is because of the bill board advertisement for this company that I saw that was the exact opposite of my experience. The bill board basically states that we fix the other guys repairs. Well in my case, I had an incident where carbon monoxide had gotten in the house from the boiler vent that was next to my side door, setting off the carbon monoxide detector. I called the fire department, The fire department discovered a high CO level in my house and a high level of unburned gas coming out of my outside vent because of my son leaving the side door open, the unburned gas was getting back into the house. I called O'Donnell HVAC and very quickly Mr. O'Donnell arrived at my house. I explained to Mr. O'Donnell what the fire department had told me to which Mr. O'Donnell told me that the problem was that the burn chamber had been damaged and the boiler should be replaced. I told Mr. O'Donnell that my furnace was only 2 and half years old. Mr. O'Donnell replied that the high efficiency boilers are not very reliable and a less efficient furnace would be very reliable. I pressed Mr. O'Donnell on fixing the burn chamber instead of replacing to which I was told that he could take it apart and clean it with no guarantees and the cost would be 1/3 of a new furnace. Keep in mind Mr. O'Donnell hadn't examined anything, he was only going off what I had told him. Reluctantly, I signed up for a new furnace which was to be installed in 10 days (April time period). I had time to think about this and also get a second opinion. I also checked reviews on O'Donnell Heating and Air Conditioning and found one negative review that was similar to my experience (no look recommendation for a new furnace). I called SunBeam HVAC, the service technician came out, evaluated the vent output and confirmed that I had an extremely high CO output. He stated that when my system had been put in that they had not adjusted the fuel to air mixture. The technician made the adjustment and reanalyzed the vent output. The CO output had gone from 14,000 parts per million down to under 100. Problem fixed for 300 instead of 4,000. I meant to write a review at that time but let it go until I saw this bill board advertisement stating that O'Donnell fixes the other guys repairs (something to that effect) which was certainly the opposite in my case. Mr. O'Donnell did not charge me for his recommendation maybe by design. Needless to say I called and cancelled the furnace replacement because of the real problem being fixed. I never got a call back form Mr. O'Donnell.

I am extremely satisfied with the equipment, price, and service I received from O'Donnell Heating & Air Conditioning. They made the whole instillation process quick, efficient, and painless. Their employees were responsive, professional, timely, and excellent customer service. I strongly recommend them as their quality, service, and pricing were great.

What first impressed me with O'Donnell was their excellent customer service. They are very helpful and pleasant to deal with. They replaced our furnace and were very honest about what needed replacing and what could wait. Excellent service always.

We had O'Donnell Heating and Cooling replace our air conditioner and furnace last July. We were extremely pleased with the company from start to finish. We had four companies give us quotes and O'Donnell's was the best overall and the owner explained in detail what we could expect during installation. We were in the middle of the covid pandemic and O'Donnell's whole team took all the extra precautions for everyone's safety. They showed up on time, were courteous, installed both units efficiently and even fixed an issue with our tankless hot water heater that we had been unaware of. After their clean-up you wouldn't have known they had even been there - except for our new units, which we have had no problems with. I would definitely recommend them to anyone looking to replace their heating/cooling units.

We had O'Donnell replace our furnace and air conditioning in Sept 2020 and couldn't be happier. I obtained estimates from six vendors - O'Donnell was 2nd or 3rd lowest but with all things considered, they were the best value - from equipment brand and model, installation, warranty and overall pre-sale service. I highly recommend them.