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#1 HVAC Services in Long Island
For Residential & Commercial

Professional
HVAC Contractor

24/7
Emergency Service

Heating Installation
& Repairs

AC Installation
& Repairs

Mini-Splits Installation
& Repairs

#1 HVAC Services in Long Island
For Residential & Commercial

Professional
HVAC Contractor

24/7
Emergency Service

Heating Installation
& Repairs

AC Installation
& Repairs

Mini-Splits Installation
& Repairs

With 247 HVAC of Long Island You Get Expert Advice & Quality Work

For over 30 years, we have been keeping Long Island homes comfortable, no matter the season.

Over the years, one thing that’s never changed has been our team’s commitment to superior customer service. Our friendly, professional and fully licensed technicians will help you, whether you need emergency HVAC repairs or are looking to replace old equipment.

We’ve served thousands of homes and businesses in Long Island with fast responses, honest pricing, and high-quality workmanship.

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Our Residential & Commercial HVAC Services

Customer Reviews

5.0 Average
5/5
  • I can not recommend them enough. I’ve had two emergencies and both times David showed up quickly and was able to fix my problems on both my heat and ac. My wife was 9 months pregnant at the time and David showed up at 9 at night to make sure she had AC in the middle of the summer! Trustworthy, honest, and a huge help when you need a repair.

    Willamina Hamnerio

    Excellent service today from David and Edgar of 247 HVAC OF LONG ISLAND ! They arrived promptly and were friendly/comfortable to have in my home. Took care of maintenance issues with our boiler and radiators. So pleased with their service that we signed up for yearly maintenance plan. I highly recommend this company, and these 2 employees in particular.

    Charlie Taylor

    My AC stopped working in our server room. I called and explained the urgency and they sent someone right over! It was fixed in less than an hour and it works great!

    Daniel Golden

    I called 24/7 HVAC of Long Island in the evening and Matthew came 15-20 mins after. He was able to diagnose the issue within 15 mins and provide a fix for us. Thanks to him for a great service.

    Lyric Lamb
  • I was referred to 24/7 HVAC of Long Island when my AC went out and they responded quickly. They came out and fixed my AC quickly and efficiently. They were easy to work with and very friendly. I would definitely recommend this company to anyone who needs AC or heating system repairs or installation.

    Aron Davis

    They installed a new heating and cooling system and the technicians were outstanding! They finished the whole thing in one day and the system works perfectly! Great team of hard working young men!

    Helen Butler

    I would highly recommend 24/7 HVAC of Long Island for their Heating System Repair, HVAC System Maintenance, Heating System Installation and more. They are prompt and always on time with their work!

    Roger Kirkland

    I came across 24/7 HVAC of Long Island when I was looking for a local AC repair company. This company has been in business for over 30 years and has a great reputation for their work. They are prompt and professional, and I always feel safe and satisfied when I call them for work. The technicians that come out are always friendly and knowledgeable. This is a company that I will continue to use in the future and one that I highly recommend.

    Martin Marks
  • 24/7 HVAC is a very professional company. I was extremely happy with the service I received and how quick the service was. I also love that they do great work and are also very affordable. The website is easy to use and the customer service is great. I would recommend this company to anyone looking for an affordable and quality HVAC service.

    David McMillan

    This company is very reliable. I called at 6 am and they were here by 8am! They fixed the heat and were on their way in less than an hour! I am very happy with the service provided!

    Richard Haas

    Great experience! They were responsive and helped get my furnace installed quickly and at a reasonable price. I used them after having a very bad experience with another company so their professionalism and efficiency was really appreciated. Would recommend!

    Roman Pichardo

    Top of the line work! They installed a mini split in my sons room and we are very happy with the work and service provided by this company!

    Vincent Watkins
  • Great product installed. Gave the best advice of type of air con that was suitable. The team Matthew and David were always on time and polite. Great communication throughout. A very thorough, professional fit. I am thrilled with my new air con. Would highly recommend them.

    Brian Gordon

    24/7 HVAC of Long Island is fantastic! I called them in a desperate situation, and they showed up to my house the same day. They got me back on the air within minutes, and I was able to sleep peacefully. They are such a professional crew. If you need anything heating or air conditioning related, 24/7 HVAC of Long Island

    A Google User

    24/7 HVAC of Long Island are the best company in the area. I have used them for years and have never been disappointed! Their services are fast and friendly and their prices are always competitive.

    Joseph Giles

    Prior to choosing 247 HVAC OF LONG ISLAND to do my repairs I didn’t have a company to go to for my plumbing needs. I will never call anyone else except for 247 HVAC OF LONG ISLAND. They are very responsive and their employees are courteous, professional and friendly. I had Luis and Junior and they both were very helpful. They even put covers on over their boots prior to entering my house so that they wouldn’t dirty the floors. Within minutes they were both able to diagnose the problem and explained in full to me what needed to be done. They had everything on their truck to complete the repair on the spot. I was beyond satisfied with their service and I will be recommending and using 247 HVAC OF LONG ISLAND for anything I need in the future because of how good Luis and Junior are. You will not be disappointed with 247 HVAC OF LONG ISLAND service.

    Jkson G
  • Turned out my emergency switch was off (thanks kids). Edgar was professional and get helpful and did a thorough check on my units. Very pleased!

    John Bailey

    David and his partner responded quickly to my emergency call. My ductless system was not running properly and he knew the exact issue just by me explaining what was going on. That’s being an expert for sure! My system was up and running in no time and David called me in the evening to ensure that it was still working. I recommend these guys to anyone!

    April Harris

    Our ac takes a long time to heat or cool our home. We called 247 HVAC and they ran a full diagnostic on our house including the seal on the doors and windows. They recommended we fox the seals in the doors and it has been running much better ever since.

    KokoMaumg ေဂဟာနယ္

    They were very responsive and fixed my vent very quickly. They replaced my old heating system with a new one and did so at a great price.

    A Google User

Why Choose Us

You are in safe hands

As one of Long Island's oldest heating and cooling companies, we’ve had over 40 years to perfect the quality of our customer service. While technology keeps improving, we have never forgotten that it’s the people that matter, from our technicians to your family.

Expertise and Reliability

Our technicians who love what they do. It shows in everything from their delight in ongoing education to just arriving at your door on time.

Always Available

We’re there for you 24 hours 7days a week, when you need us. Contact us for a consultation, estimate, or any question you might have about your project or our work.

Service Areas

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