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Onofreo Home Comfort Systems is a Milford, Connecticut heating and cooling company; its website lists a service area of Milford, Stratford, Orange, West Haven, Trumbull, Woodbridge, Monroe, Branford, Guilford and East Haven and self-reports 20 years in business. The Connecticut registry shows HVAC license HTG.0408576-S1 as active, held by Onofreo Home Comfort Systems LLC. Google shows 4.9 stars from 689 ratings, and Angi and HomeAdvisor each show 5.0 from 35 ratings. Recent Google reviews name technicians Chris, Matt, Anthony and Giovanni: in a June 2026 review Giovanni came out the same day and fixed a compressor in 30 minutes, and in a September 2026 review Linda in Branford wrote that Andrew designed a 3-zone system for her Cape Cod after other companies said it could not be done. Three accounts are complaints: a June 2026 review describes a 10 to 2 appointment the company called at 1:30 to push past 3:30, an October 2024 one-star review says Onofreo advised replacing a two-year-old system and the reviewer went ahead, and a December 2024 Reddit post says not to use Onofreo after a dispute over heat-pump clearance.
“got recommended Mark and his team who basically rebuilt it back to factory and then worked through it to get our heat back over a couple hours after 5 days without. Definitely weekend/emergency charges but they’ll get it fixed.”
“Whatever you do, dont use Onofreo. They suck, and i overheard their owner call me a know it all jackass to his office after I said the heatpump wasnt supposed to have less than a foot of clearance around it.”
“Onofreo Home Comfort Systems Supports Newtown Flood Victim – The Newtown Bee”
Onofreo Home Comfort replaced my 35 year old oil boiler with a new natural gas combi boiler. They added a 3rd zone. They updated all thermostats. The workmanship on the natural gas piping and installation is top notch. They also removed the old oil boiler and 250 gallon oil tank. There was one issue after start-up, which was corrected after a few tries and we have been trouble- free ever since. Overall a very positive experience from initial sales call, through the estimating phase and concluding with expert installation and effective problem resolution. I would recommend Onofreo to anyone looking to upgrade their home heating system.
Is your landlord New Haven CT? I am happy to know this company and they're always giving me comfort for any urgent or regular work. I need thank you.
Chris Kulesza was phenomenal!! Called and texted me early and answered my questions, showed up on time and was patient, did a fantastic job and left no mess !!
Chris was amazing! Not only did he make my place warm, but he showed patience & also educated me on how to use of my thermostat correctly. He was friendly & I had full confidence in what he was doing. Thank you!
Matt was great. Since this is a relatively new system (combi) I had several questions which he answered thoroughly and professionally. Very happy with this service experience.
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1 change recorded — last scanned Oct 13, 2026.
Typical your area range for this kind of work, from regional averages — not a quote from ONOFREO HOME COMFORT SYSTEMS. 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
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