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Typical your area range for this kind of work, from regional averages — not a quote from Giordano's Heating & A/C. 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
Giordano's Heating & A/C installs, repairs and maintains furnaces, air conditioners and mini-splits, according to its website, which says the company has been in business 47 years. Its stated service area runs from Derby and Ansonia to Milford, New Haven and Southbury. Google shows 4.7 stars from 73 ratings. A recent customer said Dave came out for a free estimate and explained the options, and the ductless unit and central AC installation that followed took two days. That customer said the team kept the work area clean and showed them how to use the thermostat and ductless remote. A recent customer whose furnace went out was scheduled a month out, then got a call the day before the install pushing it back another 10 days. When that customer asked David for a sooner date or a small price reduction, they were told no. A 2025 customer said Dave came out the day after they called, and the old systems were removed and new ones installed in one day, with the basement spotless at the finish. That 2025 customer said the first year saved over 50% in electrical and 35% less oil. A 2025 customer said they had used the company for 19 years, that it replaced both their heating and air conditioning system, and named Dave and Brian as the owners. A 2025 customer said Giordano fixed a heater with lots of issues for a more than reasonable price and did not oversell a replacement. A 2024 customer said Bryon fixed a 35-year-old furnace, replacing the blower motor and the wheel. A 2024 customer said the company came out at 9pm to help with a boiler issue. A 2023 customer said leaves and debris were not cleaned from the outdoor AC unit after annual maintenance, though the worker said they had been, and that months of emails about duct work went unanswered. A 2022 customer said another service later found the replacement thermostat was for a 1-stage system on their 2-stage AC, with the second stage disconnected. It holds an active Connecticut heating and cooling licence, HTG.0403053-D1, under Bryon C Miller.
“Giordanos, Derby CT”
I scheduled a free estimate with Giordano’s, and Dave came out and explained all of my options and answer my questions. We decided to move forward with installing a ductless unit along with central AC throughout the home. The installation took two days. The team was on time, professional, and respectful of the house. They kept the work area clean as they moved through the project. Once everything was finished, they made sure both systems were working properly and took the time to show me how to use the thermostat and ductless remote. Overall, it was a smooth experience from the estimate through installation. I’ve already recommended Giordano’s to a family member and would gladly recommend them to others.
I hired this company to replace my furnace when it went out during cold weather. David scheduled me a month out, which I accepted, and I took a day off work for the install. The day before my appointment, I received a call from David that they have to cancel and pushed me back another 10 days, citing other jobs that came in. No heads up, no urgency, no consideration for the fact that I had already waited a month and arranged my schedule around their appointment. When I called David to ask for any accommodation, a sooner date, a small price reduction, I was told no and was essentially dismissed with the comment that I'm getting a furnace installed when it's hot, implying my situation didn't matter. Warm or not, nights were still dropping to 50 degrees. A furnace failure isn't a luxury repair, and a customer who waited patiently for a month deserves better than a last minute cancellation. I would not recommend this company.
I've used them for HVAC services in one of my homes in CT. They have always been professional, reliable and knowledgeable. I called recently and thought the furnace was out, turns out I am just cluless in construction/carpentry/HVAC and needed to change batteries in the thermostat, lol. ....but I will say it was hard to get off, I did make an attempt prior to calling but that was the recommendation 😅 once I called. I am glad they don't judge me... Ha! I still needed routine tune up service so they scheduled it promptly. I've always had a great experience. My water heater, air conditioner and furnace were replaced by them and maintenance by them over the past years... Dave is friendly and the others too. I like that I've become familiar with the techs, which can ease the stress of strangers coming to your property.......I've had to use them in a cold weather emergency once and they showed up and took care of it with no problem, they make it look easy but I am always stressed when it comes to this stuff !....So using them helps my stress go down.... So I will always use and highly recommend them to others... Thank you !
Giordano's Heating and air conditioning is as good as it gets. Dave came out the day after we called and gave a price on the following day. They removed the old systems installed all new high eff. They were in and out in one day. The basement was spotless when they finished. New 3 stage compressor 18 seer all new coils,ductwork furnace air cleaning Merv 16 filters new humidifier and filters. They set up in garage and made duct work that had to be custom fit. Wrapped all the duct and sealed. I can't say enough about the professional manner from start to finished. And the kicker is the systems that Dave suggested is a winner and the 1st year has saved over 50% in electrical and 35% less oil. The new thermostats are a dream. The comfort is 100 times better. They are the best. Can't express enough just how good and professional they are. You won't be unhappy with this co. They won't be the least expensive but you will get what you pay for in quality and professionalism at a more reasonable price. Pricing was better much better than we expected. Thank You Dave and crew at Giodanos your the best! T. and C. Kemp Shelton CT.
The technician was both knowledgeable and polite.
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1 change recorded — last scanned Oct 16, 2026.
Final bill matched the quote3.8
Oil tank replaced in just 4 hours5.0