I filled out a request on 6/26 for estimate on updating one of three R22 central Air systems in my…read morehouse. Filled in all my contact info and after three days no call or email. I understand that this is a very busy season but not a call or email for just an appointment is not good. I do not understand why some companies even offer the option to fill in for a request on their web site. I filled out three other requests and with a day they provided me with an appointment. It's a shame because I liked the puppy sitting with the owner! Update on 07/1 I called again and this time I spoke with Christian who set up an appointment for 7/03 between 1-3pm.

Thank you to everyone at Therm A Trol in Blue Point NY for your professionalism... We are so…read moregrateful. Very dependable company ...we are 100% satisfied with every aspect of a job well done. The H Vac system is great!! Installed perfectly in a timely fashion. Immaculate when the job was done .. Thank you again . Mr. and Mrs. Jim Wenz Bayport NY

If I could give John more than 5 stars, I would. One of my central ac units bombed out on one of…read morethe hottest days. He squeezed me in the same day. He said he was coming at 5, then was running late but communicated he would still be there as soon as he could. This man came at 930 at night--when most people would've already been home in bed, and said I'm going to keep my word and I told you I would come so if it's still okay and not too late I'm 10 mins away.... He showed up; Diagnosed everything, gave us a temp fix overnight, sent me a quote (since we needed a new system), then called me the next morning to tell me he found the equipment for slightly less and got me an even lower price! And is replacing the unit the next day. Wow... aside from being super professional, he was honest and very knowledgeable. I had two other quotes done out of due diligence (which I do for every big job or contract work), and he also gave us the best pricing. So I would highly, highly recommend John and his company. And I'm so glad we found him. We will definitely be using him for any HvAC needs going forward.

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 recommend Comfort works to whoever needs work done in their homes. They were clean and…read moreprofessional from start to finish. They did a wonderful job installing ductless units in my parents house.

From the owner: Comfort Works HVAC has been proudly serving Nassau County customers since 2016. Led by owner John…read moreUzelgok, we provide honest, quality work for Nassau County. As a top HVAC contractor, we specialize in boiler installation, furnace repair, central AC repair, and ductless heat pump services. Whether you need hot water heater repair, HVAC maintenance, or emergency HVAC services, we are your go-to local HVAC contractor. We offer residential and commercial HVAC solutions, ensuring reliable and affordable services. Trust us for HVAC system installation, upgrade, inspection, tune-up, and replacement. Comfort Works HVAC is committed to providing energy-efficient HVAC solutions.

I'd like to thank John and Jimmy from ZSL for their quick and efficient response time and service…read more With exceptional customer service, they explained in detail what the issue was and what they did to resolve it.They are very knowledgeable in there profession, and compassionate about the work. . I appreciate the hard work and effort put forth. Thank you!

Completed several projects this year. All we're completed quickly, efficiently and done right the…read morefirst time. Costs were a bit higher then average, but we'll worth it. ZSL explained everything and guarantees all their work.

Found this company very professional and economical when looking for a Hvac contractor to install…read moremy Ductless Ac System. We installed a 5 zone Ductless Mitsubishi system that does Air conditioning, Heat and Dehumidifier and am very satisfied with both the system and the Hvac company. I would definitely recommend them for a Ductless System.

From the owner: While focusing on Ductless AC systems only, we have been servicing customers all over Long Island…read morefor over 25 years! No job is too big or small. Call us today to get your free estimate for all your Ductless Air Conditioning and Heating needs.

amazing co with amazing customer service!!! nobody better -…read morehighly recommend Cunningham Duct

Service personnel was on time and professional. Using Cunningham for years. Very Reliable. They…read morecleaned ducks from both inside and outside of home.

this was the third time I had them to my house for various issues. they have been knowledgeable,…read moreefficient, friendly, and don't kill me on the price like many of the bigger plumbing companies. I highly recommend them!! thank you for being there!

If you live in the area and use anyone but Alan Gross Plumbing, then you are a fool. Dale came in…read morewith his crew -- all great guys -- and did a top-notch job. No surprises. Dale communicated exactly what needed to be done and they did it. I thought the price was fantastic as well. Cleaned up after the job too. Extremely satisfied. None better.

Total life saver! I'm a new home owner. Trying to save on oil, Well, I forgot about all that…read morenonsense during the holidays and ran out of oil over night and the burner would not restart. Called as an emergency and they prioritized me to get same day service. A totally awesome experience. Tech was awesome and got me up and running, I'll be calling for my yearly maintenance with these guys!

Lots of delays, missed appointments, damages, will not honor warranty…read moreWorst contractor I ever worked with in my entire life ! Stay away!,,