Excellent service at a very fair price, perfect punctuality, a responsible and respectful team,…read morethey left everything spotless and made sure everything was working perfect. 100% recommended!

"I Highly recommend KB heating & Air Our oil burner was not running properly . I contacted Kevin in…read morethe afternoon and he got to us within 2 hours.. Kevin was very professional, honest, and hardworking. He quickly diagnosed the issue and didn't try to upsell us on unnecessary repairs. We will absolutely use them again 5 star experience!!!

Needed a whole new hybrid unit, inside and outside. John was exceptional. The old unit left in the…read morecondo was horrible and there were so many things wrong that we didn't realize until it finally stopped working. John, James and Kyle went above and beyond the original scope of the work to do a proper install. Needless to say we now have an amazing unit done correctly. He and his crew are meticulous, neat (cleanup looks like no one was working there) and his recommendations were spot on. A real pleasure to have found him. Hopefully I won't need his services in the future but if I do he'll be my first call. Thanks again.

I had them come out for troubleshooting. When i asked them any questions they said "pay the service…read morefee" when i asked when they were going to repair or get parts to repair it. I was only told "pay the service fee" The person didn't know how to communicate and only say "pay the service fee" I tried to call and schedule the repairs but they don't awnser or return phone call. I only went with this company because it is through my warranty. I would NOT reccomment this company to anyone. Don't waste your time.

Three years ago this company installed a boiler with an upside down relief valve and an undersized…read moremain circulator, leading to system failure and no heat this winter for my 83 year old father, living alone. After $2k emergency repair, another $5k to fix.

Nothing but fantastic things to say about Central Air Systems and hvac technician Will who came to…read moreprovide emergency service for me in Ridge today. My upstairs zone AC air handler stopped working during this crazy September heat wave with temps consistently in the 90s all week. Called for an emergency service repair to try to get me up and running. They were able to squeeze me in only 2 hours after calling. Service call rate was extremely reasonable (half the price of others I called that weren't able to get to me for at least a day - even as an "emergency"). Inspected my condenser coil and pressure, air handler coil, and blower motor. Diagnosed blower motor control unit on the fritz / starting to fail, combined with super high head pressure due to clogged condenser unit coil. Was able to get me back up and running cleaning coil and jump starting blower motor within 30 minutes and unit cooling much better than it was before to hopefully get me through this heat wave before cooler fall temps come back. While they were here they were able to measure and run some calculations to put together an estimate for me to convert my upstairs zone over to a ducted heat pump setup, relocating my air handler for my second story upstairs zone to my attic from my basement and better plenum / air box design to help resolve lack of airflow issues also contributing to inefficient cooling upstairs vs replacing the blower motor in a 12 year old unit as a cheaper option. With that said service rep was very knowledgeable and transparent regarding the different options and cost effectiveness. Never felt like I was being pressured or sold in any direction, only given details to make an informed decision. Hoping when I get the estimate back to convert this zone to heat pump, taking advantage of various rebates (federal and state / PSEGLI as they are an approved contractor for utility rebates to stack), alongside attractive financing options to help with monthly budget crunch due to overall inflation from pandemic, that will be able to upgrade and save money in the long term vs trying to keep my 12 year old less efficient Rheem system running. Definitely going to continue to use Central air systems for service and preventative maintenance going forward! I will provide an update once I have the heat pump installed, but given my extremely positive service experience, hopeful that value on install and overall performance is also a 5 star experience. My pets thank you for helping to keep us cool during this heat wave Will!

Outstanding professionalism and service. Also promptly responsive. We weren't an established client…read more& we had an emergency; David made us feel like valued regular clients. Thank you

i had a problem with a boiler leaking. I researched the internet and came across Cleancut heat and…read moreac. Dave answered my call on a Sunday and stayed on the phone with me for hours troubleshooting and teaching me about boilers. I made a few adjustments as recommended by Dave. I can't tell you how patient and informative he was. I greatly appreciate that and will definitely will use him as my servicer.

I was referred to Donlon Bros in Bayport by a local supply company. I called them Friday morning…read moreand Taylor came at 1PM that same day. He checked why my gas tankless system was not putting out hot water. He was so friendly, so informative, just a really nice guy, found the problem right away and fixed it right away, and he gave my all sorts of tips on what to do about other problems I have been having with my old Patchogue house. I will only call them for now on and will recommend them to everyone for heating/HVAC. They were also reasonably priced. Thank you so much Taylor, and Donlon Bros., you guys were very good.

Donlon Bros technician came to the house, diagnosed our problem and refilled our freon in our split…read moresystem. It was determined we needed a new system installed. I have called twice with no response. Very disappointing and would not use them to install based on this experience...Frank

My boiler needed to be replaced 4/2025. I went through NYSERDA/PSEGLI for assistance w/their energy…read moresavings pgms. They linked me up w/LIHVAC. They came to my home 2x in April. Then I had to have a draft test, then they came out another 2x for property pictures. So, no hot water no heat. Then summer came & went. Whenever I called LIHVAC, the line rang & they used their caller ID & sent me to voicemail. So I then started hiding my phone # & they'd answer. But still, they blamed NYSERDA for the delays. Here comes November!!! I call LIHVAC & am told that they are no longer using the NYSERDA pgm. So they gave me NO courtesy call, rejected my calls, ignored my emails. Terrible & irresponsible company. So that was 7 mos without heat & hot water. I called NYSERDA the last time & they gave me a company that they say they stand behind. I had nothing to lose, so I went with GreenTeam LI. After 2 preliminary visits, I was up & running w/a heat & hot water before Thanksgiving. LI HVAC lost out on $36k since I went with the heat pump! They should be ashamed of themselves. I can imagine how they take advantage of people. Poor excuse of a company & they deserve to close. Take notice & don't use this company. Horrible service & despicable & lack of morals.

I could only say nice things about Long Island HVAC. Professional, knowledgable,dependable. Had a…read moreproblem with old unit, they were there, assessed problem and replaced unit within short time. They informed us all along the way. Team was neat and seemed very experienced. I also felt confident that I could call them if any issues and know I will call them with any further needs. Thank you

I first contacted this company back in September for an oil tank issue, & the experience was so…read moregood that I've called them multiple times since. We had an urgent situation & I reached out on a Sunday after checking their website & pricing. Steven & Jill are fantastic. He clearly explained what was wrong with our oil tank, walked me through how he would fix it & communicated throughout the entire process. I never felt pressured, just informed & confident in the decisions being made. He got our hot water back quickly, then installed a new oil tank, handled the wiring & cleaned up thoroughly before leaving. They're professional, friendly & easy to work with. Since that first visit, I've contacted them twice for other issues & each time they've been honest, responsive & reliable. Their pricing is fair & absolutely worth it for the quality of work & peace of mind. I wouldn't hesitate to call them again & highly recommend them.

Best family owned company around. HONEST and RELIABLE. Unfortunately there is alot of crooks in…read morethis business, some that even steal from their customers and companies. Not only are you getting the owner that comes in and does all the work, he is also a genuine nice guy. 5 stars will highly recommend ​

Called for an emergency and he was quick to respond! Absolutely recommend this company. He was able…read moreto fix my issue with my AC unit as well as take a look at my boiler :)