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Typical your area range for this kind of work, from regional averages — not a quote from Evolution Air, LLC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
Evolution Air, LLC is an HVAC company that describes itself on its website as full-service and based out of Stamford, CT. The site says it has been in business for 16 years and lists Greenwich, Stamford, New Canaan and Darien as its service area. On Google it holds 4.9 stars from 78 ratings, and its BBB grade is A+. One recent customer said Danny diagnosed the problem, installed their new Ecobee thermostat and checked that both heating and air conditioning were working. A recent customer whose new Bosch HVAC system went into a condo said Maria from the company and the electrician worked with them to secure the permits, and that airflow improved compared to the old system. A customer who had a new HVAC system installed said it had to integrate with older existing equipment and ran into a few issues after the initial installation; that customer said Mike, the owner, personally assured them the company would not walk away until everything was working. A recent customer said their previous provider had not helped after two visits, and Mike came out and provided an easy fix for the upstairs AC at no charge. A recent customer said the company came out the same day, and Aram found the problem and got the system running while new parts were on order. A 2025 customer facing HVAC, water heater and boiler repairs said Maria walked them through contacting the electrician and plumber the job needed, and that one of the main installers came back over Labor Day weekend to make sure there were no issues. That 2025 customer also said the work space was left clean each night. A 2024 customer said Danny showed them what was being repaired, flex duct work their cat had shredded, and patched up work the customer had done themselves. A 2022 customer said it took 2 days to replace their old gas boiler. A 2023 customer gave one star after a $500 visit to service two A/C units, saying one unit stopped working 6 weeks later. That 2023 customer also said they were charged about $65 over a humidifier filter that was taken out but never replaced, and that a promised call from a manager named Joe never came. Connecticut lists its S1 heating and cooling contractor licence, HTG.0405502-S1, as active, held by Evolution Air LLC.
Danny was great. He diagnosed the problem and completed the installation of our new Ecobee thermostat. He checked that both heating and air conditioning was working correctly.
Lucas was amazing. Diagnosed the problem very quickly - turned out to be a problem we’d had before that took the previous company a few visits to figure out. Explained it thoroughly.
Danny was great, kind, thorough and knowledgeable. He fixed the issue quickly and also checked the system. And was nice to speak with. Great job.
I typically don’t write reviews, but I felt compelled to write one for Evolution Air after the experience we had with them. We had a new HVAC system installed in our home in July. Before choosing Evolution Air, I met with several different HVAC companies. Some were more expensive and some were less, but I came away from my conversations with Evolution feeling like they were the right company for the job — and they absolutely proved me right. Because the new system had to integrate with some older existing equipment in our home, we experienced a few issues after the initial installation. This is where Evolution Air really distinguished themselves. They were incredibly responsive, professional and committed to getting everything exactly right. A special shout-out to Maria in customer service, who was fantastic throughout the entire process, and to Mike, the owner, who personally assured me that they would not walk away from the job until everything was working perfectly. He meant it. Every person we dealt with — from the installers to the service technicians to the office staff — was terrific. They stood behind their work, communicated with us throughout the process and genuinely cared about making sure we were completely satisfied. You learn a lot about a company not just when everything goes perfectly, but in how they respond when something needs additional attention. Evolution Air could not have handled it better. I would highly recommend them to anyone looking for an HVAC company they can trust.
I highly recommend Evolution Air for your HVAC needs. They did a great job fixing my ac, and maintenance of both ac and water tanks You're in good hands when you choose Evolution, especially if you get Joe or Willy, thanks guys.
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1 change recorded — last scanned Oct 13, 2026.