Isaac Heating & Air Conditioning
Company Overview
In the realm of home heating and cooling, you’re not just acquiring a furnace or an AC unit -- you’re selecting a company, a customer service crew, and the quality they embody. Whether it’s an urgent repair, a system upgrade, or a complete installation, the overall experience matters, and that’s where Isaac shines! Regardless of your circumstances, Isaac’s trained specialists will educate you on your alternatives and support you in selecting the best option for your needs and budget. We have proudly served the local community for almost 80 years. We are committed to our heating and air conditioning products and the excellence of our services.
Isaac Heating and Air Conditioning has been a family-owned business in Rochester since 1945. With over 35,000 satisfied customers, Isaac ranks among the largest privately held HVAC contractors in the nation. With a workforce of about 300, Isaac has six locations: Rochester, Big Flats, Avon, Syracuse, Dansville, and Canandaigua, NY.
Offering installation and servicing for both residential and commercial heating and air conditioning systems, the company boasts more than 90 NATE (North American Technician Excellence)-Certified Technicians. Their success is rooted in deep community connections, unwavering service, and fundamental company values.
Business Services
- Electric inspection
- Gas line installation
- Gas line repair
- HVAC installation or replacement
- HVAC system repair
- HVAC system maintenance
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Water heater installation
- Water heater repair
Business Location & Hours
| Mon: | Open 24 hours |
| Tue: | Open 24 hours |
| Wed: | Open 24 hours |
| Thu: | Open 24 hours |
| Fri: | Open 24 hours |
| Sat: | Open 24 hours |
| Sun: | Open 24 hours |
Recommended Customer Reviews
had my gas furnace replaced and the repair guy used the old fittings instead of new. It ended up in a severe propane leak, the fire dept was called. Had to evacuate. My home could have blown up.
I have been a loyal customer to Isaac and was very happy I found a trustworthy company for my heating, plumbing, and cooling needs, but honestly was shocked when I was charged $350 for ~35 minutes worth of work to install simple kitchen facet. The facet I purchased and provided to the plumber. I was given a service call quote of $96.99, but didn't receive anymore information on the cost until the plumber was in my home. I felt stuck to pay the cost, otherwise i was out almost 100 dollars without the work being done. I thought about it over night, thinking this must be a mistake and called the office. I was initially told by office staff Id have to wait 24-48 hrs to speak to a service manager. I called again requesting to speak to someone today. I received a call back from service manager Steve B. I explained my position and that i felt i was extremely overcharged and that I was a loyal customer with other work planned in near future, to include all new heat tape installation. He told me there was a flat fee for the facet installation no matter how long it took and did not offer me any fee reduction. I requested a wave of the $96.99 service fee. He refused, stating the only thing he could do would be to give me 1/2 off the service fee. I am aware Isaac is currently running a 50% off plumbing service fee. Which by the way was not provided to me at the time of invoice. So essential he did nothing for me. Apparently customer loyalty means nothing to this company. I will no longer be giving them any more of my business. $350.00 for 35 minutes work is simply outrageous.
Tory C.Had a brand new Lennox AC installed by Isaac in 2018. The interior evap coil now has a visible refrigerant leak that I have photos & videos of using soap/water to show the leak. Evap coil is still under manufacturer warranty, so it's covered for replacement. However, Isaac won't order parts until they come for a ""diagnostics visit."" This is fine, but they won't schedule that visit until 8 days from now - THEN, they'll order parts and schedule an install another week later. 14+ days to perform a warranty replacement for a broken AC. Meanwhile, it's 95° in my house, and they don't seem to care about that. Cool - thanks guys. Fortunately, Holbrook HVAC was able to come out on the same day, diagnose it, and they are ordering the parts to replace it -- all in less than a week, and well before Isaac can even come for their ""diagnostic visit.""
ISAAC is one of those known names in HVAC, a big business, so I thought I had good reason to trust them to come out and diagnose a problem with my elderly mother's gas furnace. A trickle of water had appeared on the basement floor from the furnace to the drain and that obviously needed diagnosing. The tech was left for about 30-40 minutes to look things over and then tells me that the ""secondary heat exchanger is likely shot."" Hmm. Strange issue to have, considering that unit is behind a seal and that panel wasn't taken off. But we nod and ask what one does about this problem. His response was that the expense to replace it was likely so high that it would be better to just get an entire new furnace unit, and before I knew it he was calling his dispatch to schedule a project manager to speak with us. ""Yikes,"" I think. ""Well, we'll make an appointment and see what they say."" No mention on how much it would cost to repair or replace the current heat exchanger either. I asked for a digital copy of this diagnosis (which was promptly emailed, thank you for that by the way) and I started thinking. After all, a furnace is a huge purchase! Thousands of dollars! I wanted a second opinion.
After some file-searching I found the name of the fellow who originally installed our furnace some 14 or so years ago and asked him to come for a look. He popped the panel off, dug into it and discovered the REAL problem 10 minutes later -- a fan motor that was failing and a leaky seal around the exchanger. He showed me exactly where the visible issues were and I agreed, seeing the wear and tear with my own eyes. Cost to repair? $350, parts and labor included. Our furnace runs perfectly now and will for the foreseeable future. The heat exchanger? Is fine.
My elderly mother, on her fixed income, might have been talked into buying a whole new furnace for no good reason. I'm very disappointed, considering what a reputation ISAAC is supposed to have in our area. We shan't be using them again, and I hope this review encourages others to be very careful about accepting their recommendations on face value.
Rick G.Always happy with Isaac. I have had a warrant contract for probably 20+ years!
Our furnace blower motor burned out yessterday. Called and explained the problem. I was put on hold and after several minutes the call was dropped. I called back, got a different person, told him my call had been dropped, explained the problem again, told him I was not interested in a quote for a new furnace, just a replacement blower motor, he transfered me back to the original person and she told me, in a polite but smug maner that they couldn't be out for about a week. I asked about their advertised open 24 hour emergency service, she just repeated that they couldn't be out for a week. Very disappointed
We had a technician come to the house to diagnose our air conditioning. Jimmy was unbelievably nice, professional and thorough. He talked me through every option in great detail and left me feeling confident that we made the right decision. Thank you!
Called ISAAC today to get a furnace worked on in Canandaigua, the lady told me they were not taking new clients at this time because of their workload. She said to call back in a month or so . lol no thanks ! I will give them one star for answering the phone .
I have had 3 projects done by Isaac (boiler/water heater, stand alone generator, full house insulation and could not be more pleased with the quality of work and the installers themselves.
My latest installation of full house insulation was done over a 4 day period by two men named Kieth & Cordell. Very respectful, always on time and cleaned up everything each and every day.
I recommend this business fully for any project that you have.
I was freezing without heat and they never showed up for their first appointment! When I called, they apologized and rescheduled for the next day, leaving me freezing without heat another night. When they finally came, they flat out took advantage of me. I was charged $658 for their tech to install a $100 part in 45 minutes. Avoid Isaac!





