
Heating Services, Air Conditioning Services
"This company was without question one of the best we have worked with. Polite, honest about the work to be done and the time frame to get it done. Our Navien boiler/heat combo went on the fritz during a major cold snap and the holidays, a double whammy. They came out that very day. Jared was our technician, he was awesome. Kelley's was able to get the needed part to fix the issue the next day. He came back not only fixed the problem, but waited for 30 minutes before departure checking the system and making certain everything was running as designed. Since the combo system went down during such extreme cold days, extra pressure built up that didn't present itself until the next day. We texted Jared, he not only responded to the text, he called us immediately, on a Sunday and walked us through what turned out to be a simple fix. Things have been running smoothly ever since. Jared was awesome. This is our families team FOREVER!"
4A3157FAAE99A9980A62AB8DFCFB4EACFC0F595A58E583DD300F0B962FE72918 9. in January 2026
Ductless AC, AC Installation
"Matt and his team were very professional, did quality workmanship and offered a heat pump with great value and quality, they were on time and budget, Matt also helped with the Energize Ct heat loan program."
Glen S. in November 2020
Plumbing, HVAC
"I can’t speak highly enough about John. He responded immediately to fix a problem with a leaking toilet (required new toilet and pipe repair and coordinated the repair work with a great contractor. I highly recommend hiring John. Great work, great price. Great guy ???"
Theresa P. in May 2021
High efficiency equipment, energy solutions, Water wells, water treatment, Heating & Air conditioning , and 2 more
"2020, whew! COVID, lockdowns... and for me, a catastrophic failure of our home heating boiler, and breaking just before a CT cold spell was going to hit. Mike's technician visited for attempted repair, promptly as he had said they would, and unfortunate for me, this was not a repair, but I needed to get a new boiler. So, after agreeing to what model was best for my home (natural gas, combi-boiler replacement-in-kind but different manufacturer - I went with Mike's recommendation), his team came in the following day early, as promised, and completed the removal of old and installation of new boiler that same day. Mike's technician doing the work was professional, friendly and courteous, answered the questions I had and cleaned up proper after all the work was done. If there were more than 5 stars available, I would give them for this job, and i'm very grateful for his superquick response to both my initial call and to getting the installation of the new boiler done in what was essentially a next day order. I had called other service providers and it seemed like I wasn't the only New England customer with boiler problems, other providers couldn't make it out to the house until 3, 4 days after I called. Fairfield County Htg & Cooling/Mike was able to respond literally right away. Thank you for that, sir - and Merry Christmas! 5 Stars all the way! Juan R. in Trumbull CT"
Juan R. in December 2020
AC / Heat Pump - Service, Repair and Replacement, Gas Furnace, Electric Furnace - Service, Repair and Replacement, Air Handler - Service, Repair and Replacement , and 1 more
"gas furnace not working. tested heating element, found faulty. fixed on return call. works great now."
Dick M. in December 2023
Boilers, Gas Conversions, Ductless AC and Heat Pump , and 2 more
"Bill Wickson was the Service Technician from Celco Heating that provided competent,swift, and polite repair services to our gas boiler."
John B. in December 2019

Video, Voice and Data, Audio , and 7 more
"What a great experience it was working with Wes. He pre-wired an unfinished room for home theater installation and returned to install the in-wall/ceiling speakers, AV Receiver, as well as mount the TV to the wall once the room was completely finished. From the beginning to the end of the project, Wes has provided professional genuine service that you often find missing today. He is also extremely knowledgeable in his field of work and responsive to questions regarding equipment needs, or any concerns the client may have. It was a pleasure working with Wes, and I would definitely work with him for any future projects."
Gerard A. in November 2022
Darien Heating & Furnace Contractors are rated 4.6 out of 5 based on 410 reviews of 410 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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