CT License # 386421, 309113

About Us

Around the Clock Heating & Cooling is the Connecticut leader in installing and maintaining residential heating and air conditioning systems. We offer the finest Energy Star heating and air conditioning units from Lennox and other top line manufacturers that increase home comfort, reduce utility bills and create a cleaner, greener environment. Our staff of highly qualified licensed technicians can install your new systems and answer your emergency calls for prompt repairs.

We are extremely proud of the role we play in keeping Connecticut home energy efficient year round. Call us today at 203-239-2226 to set up a free in-home consultation or request emergency repair service. We’re eager to make your home more comfortable, reduce your energy costs and help you maintain a cleaner environment.

Featured News

Contractor Case Study: Around The Clock Heating & Cooling

Brothers John and Andy Montz own Around The Clock Heating & Cooling, Inc., and run the operation with a number of other family members in New Haven, CT. The area is home to many rental apartments that typically house students at Yale University. A property owner...

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Service Contracts

2025 Heating & A/C Service Contracts
Financing Application

Testimonials

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Around the Clock Heating and Cooling Inc. is the best in the business! Reliable, knowledgeable, and timely! I cannot say enough! Best in the business!

Rachel
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Highly recommended!! Great customer service! Dave was great!! Very prompt and professional!

Jeanine
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Wonderful customer service! Great company that stands behind their work. Highly recommend!

Jenna
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We had an emergency with our furnace tonight. Thank you John for coming out in the snow and fixing the problem.
House is nice and warm.

Ellyn
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Best customer service I have yet to experience! John and his team were timely and responsible during the entire install. They made sure the job was done right, the first time. I highly recommend for anyone needing work done.

Joe
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Thank you to John for excellent honest service on my oil furnace today!

Jerred
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I had no heat. I was a new customer without a contract and they came out same day to look at my furnace. A competitor wasn’t able to come out until 3 days later so of course I chose Around the Clock. Maryellen, the office manager, was fantastic as well as the service person, Antonio. Mary Ellen was super kind and showed she really cares about the company’s customers. Antonio was very professional as well. He took the time to explain what was going on with my furnace and how he would fix it. I signed up for a contract and will only be using them in the future. Great customer service and work. Highly recommend. I am really impressed.

Mandy
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I’d like to give a shout out to John and his amazing team at Around the Clock Heating and Cooling !!! Thanks to your expect skills you got my AC up and running in record time before the storm hit !! Also special thanks to MaryEllen who always keeps you updated and informed in such a caring and sweet manner.

Carol
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My AC broke, Around the Clock came the next day when others couldn’t come to look at the problem for weeks. John and Robbie changed out a new motor with professionalism and courtesy. Andy was great walking us through the process. So happy with their service, especially with a heat wave coming!

Mike
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They just installed a new furnace in no time. Our furnace was on the verge of being done, after 40 years of running great. They replaced it quickly, they were very professional and cleaned up after themselves. Highly recommend!

Liz

Featured Testimonial

There is really no way I can keep this review short. I believe when something is incredible, and you receive excellent customer service, it should be shouted from the rooftop.

What was supposed to be a routine cleaning of my heating unit turned out to be a situation that literally saved my life. The technician showed at 2:15 for my appointment and as soon as he walked in my home he was alarmed. He rushed to the basement and discovered my unit was leaking carbon monoxide into the house and spewing oil dust thru the vents. He immediately shut the unit down and had to call his boss. I was so upset and shocked but one of the owners of Around The Clock, Andy, (after calming my hysteria/you can add therapist to his title) told me exactly what the next steps would be. Within 18 hours he had his crew out to my house, dismantling the old unit (which was the size of a volts wagon), dismantling the oil tank, and installing the new unit. They worked tirelessly the entire day. By the time they left the first day the new unit was blowing hot air. It was a three day job but between John, George, and Chris they finished. I have heat!

Not only was the job pristine but they cleaned up everything leaving it even better than it was before they started! It’s like Santa Clause arrived leaving you with this huge present but there was no sign he was ever there. Remember the old days of true customer service? It has become rare. You are a number. You get a recording. You leave messages. Not with Around The Clock. I heard from Andy and John regularly always keeping me updated and pushing to expedite what was needed.

Everything they told me would happen was done. EVERYTHING. As far as I’m concerned, they went above and beyond the call of duty. I must confess I watched (and you could probably say stalked) from the shadows to see what was going on and not once did I see them slacking or not working hard. They get it done! This shows you just the kind of family business Around The Clock truly is. I come from a time where your word and handshake is your contract and it means something. It warmed my heart to find such a company again. And you can bet I’m ecstatic they will be the ones to come and clean this unit once a year!

Around the clock absolutely stands for high integrity, professionalism, honesty and just plain human kindness. Without hesitation, Andy and John helped me when I felt this was a hopeless situation and made this happen. For that, I am forever grateful.

So, if you are looking for a company where your needs will be met, you expect pristine service and you want someone you can trust wholeheartedly, I can’t recommend them enough. And, hey, if they are really feeling generous you might even get turn down service and a chocolate on your pillow!

 

– Kristin