great customer service, scheduled us in last minute. Technician came out and communicated…read moreeverything, super friendly & took care of the problem.

Arrived promptly early Monday. They were well informed, knew what they were doing, had all the…read moreright gear and were pretty quick and cordial.

They have been caring for our furnace for over 15 years and have never let my family be cold during…read morethe long and brutal New England Winters!

My air conditioner stopped blowing cold air Saturday evening. Of course it's supposed to be the…read morehottest days for the next week for the summer of 2025. Called them for an emergency repair. Craig called me back. Said he'll try to get there. As soon as possible was at my house within 20 minutes. Did the repair and got us back up and running. Good company to have.

Tyler was awesome! Quick to respond, diagnosed and fixed the problem within a morning, called to…read moredebrief me afterwards. 10/10 would recommend!

From the owner: Specializing in split system installation and repair, Oil and gas heating service. Central A/C and…read moreheat pumps. New construction or existing home ductwork projects

Can't say enough good about these guys! They came out to install a nest thermostat a while back,…read moreand over MDW we tried to use the AC for the first time, and it wasn't working! I called in the early afternoon, and on the busiest weekend of the year, they promised to have someone come and check out the unit. Larry came out that night, and stayed to fix what was a previous mistake, plus install new equipment to make the AC unit work. Not only did they not charge to correct the wiring problem, but the new charges were extremely reasonable. I fully expected to get price gauged because it was an "emergency" situation on the busiest weekend of the year, but they were honest, and did not overcharge at all. Larry stayed late on a Sunday night to make sure that the unit worked. Truly, thank you for the quality service & price. 10/10 would recommend to anyone that has a heating/Ac problem in the area.

On a 90 degree Tuesday in a 90 degree month, our air conditioning stopped working. I found X-treme…read moreon Yelp and called because of a recent good review, and because they are in town. I spoke with Larry who immediately told me he couldn't come out until that Friday, potentially turning away my business. I told him we'd wait. Larry was able to come a day earlier than promised, suggested replacing rather than fixing our 18 year old system, and had the new unit installed and working in less than a week. Larry and his helper were professional, prompt, courteous, and offered three choices in a top rated air conditioning unit. We're calling them for our furnace inspection this fall. Cathy M

Amazing local company for all of your HVAC needs. Courteous, professional, affordable, and most of…read moreall what stands out is the amazing attention to detail in their work. I used Complete Comfort to replace and upgrade my furnace/AC system and couldn't be happier. I will be using them again for service and any future repair needs.

Curt is very reliable and trustworthy. He recommended a new heating and air conditioning system for…read moreus that was less expensive than the other companies we had quote, and demonstrated how and why it was the right one for our home. We strongly recommend Curt and his company!!

I scheduled a free A/C system estimate with Vladimir and luckily he was able to come the same day…read more Vladimir was very professional, respectful of my property, and was very clear in explaining every step he is taking. He was able to diagnose and fix my A/C on the same visit. Prices seem pretty reasonable as well. I would love to work with Vladimir again, hopefully not too soon though.

Quick response, friendly and honest professional. Vladimir didn't exaggerate problems, only…read morerepaired the direct problem with decent repair cost. Thank you.

Nero's techs are professional and knowledgeable about every aspect of heating, cooling and…read moregas-fired heating and water heating systems and smart thermostats for optimum efficiency. Dispatching and customer service staff are courteous and take-charge responsible. It is a pleasure to recommend them to others here in Southington!

I called Nero to bid on my new ductless mini-split heat pump after having called on them a couple…read moreof times in past years to service my gas heating/hot water system. It was an easy, straightforward experience overall from Chris in sales, who explained my options and arranged a relatively quick turn-around for the install. Brandon and Aaron, the installation team, were top-notch in all respects. Our older home gave them good opportunities for demonstrating their skill, creativity, adaptability, and determination, all of which they showed in good measure. I can say that the sales people and technicians I dealt with have all been very respectful and considerate of the homeowner. I went with Nero in spite of a slightly higher bottom line, and am very happy with the results.

I bought my home 5 years ago. The older furnace wouldn't kick on today. I found the Giacco Oil…read moresticker on the unit and decided to call! I left a message before hours and at 8am, I had a call back and technicians at my house within 10 minutes! Super friendly and knowledgeable. Isolated the problem and fixed it, within 30 minutes, we were warm again! All around great experience, timely response to my inquire, onsite within specified time, answered all questions and figured the problem out in minutes! Best service experience all around, that I have had since becoming a homeowner.

We just bought a house in Durham and needed service on a boiler . It was a snowy morning and this…read morefine company came out and walked down our long driveway to repair our heat to keep our family warm and safe . Jeff the service technician that repaired our boiler did a great job . All and all a great company to deal with.

Always on time for a service appointment. Oil deliveries always arrive on the day requested. They…read morehave great oil prices.

The company delivered oil to my house by mistake. I've never used them before they are not my oil…read morecompany. When I confronted the delivery driver his response was to stop the pump and go to my neighbors house and pump the remainder. I understand accidents happen, called the company and explained the incident. Two weeks later, I receive a bill in the mail requesting me to pay for the oil they pumped into my house without my permission. I called to resolve the matter and they offered to give me a discount on the bill. A discount for oil I did not ask for. The company made the mistake and wanted me to pay for it. To treat non-customers this way shows money fuels their business instead of values and integrity.