Their knowledge is what sold me on these excellent contractors as other Mitsubishi Diamond Dealers…read morewere unaware that Mitsubishi had increased the amperage on their newest unit and they alerted me to needing to install more robust electrical lines. They also did an excellent job of installing the equipment and in answering all the questions I had along the way, to make me feel more comfortable. They were also the least expensive and were able to fit me in weeks before the other installers could. If there was an option for 6 stars, I would choose it.

Prime Air Group just completed their 2nd job at my residence, installing a Mitsubishi Split Air…read moreunit on the other side of the house. As well as replacing my ancient electric panel. They arrived on time, explained the process, and were done in 5 1/2 hours, and even swept up and cleaned any smudges left on my wall. Somehow they managed to be even nicer and more proficient than last year. All at a terrific price (I had several estimates). Best contractors I have ever had the pleasure to deal with.

This is an absolutely First Class company, operating in an area in which shady companies abound…read more Competent, trustworthy, reliable, they identfied abstruse problems on two units that had perplexed some other firms and had solutions to hand. AND ones that didn't involve just replacing everything in sight to make the problems go away. We will DEFINITELY use thm again

Responses were timely and helpful. That helps so much to relieve concerns and to confirm something…read moreis really going to happen.

Ben solved some very thorny problems with my boiler. I have a 325 MBH Burnham 2009 steam boiler in…read moremy brownstone that was failing to start up especially after it had been down for a while. I mistakenly thought it was a worn out thermocouple and tried to replace it since I saw it done last time the problem arose. Unfortunately I was doped up on Benedryl to treat a bad head cold and caused a major short circuit of the controls while attempting the work. Having no idea of the extent of the damage and how to repair it and having bad luck with my previous contractor, I submitted inquiries to several contractor referral sites. Ben is on Yelp & Thumbtack and responded to me quickly. It was the weekend and the house was getting cold so I thought I should try him. He was very methodical and thorough in his work. It took several days while he was testing and replacing wires and testing the controls. While prepared to replace all the controls, he found that he only had to replace the 12 volt transformer and low water cutoff. He drained and cleaned out the boiler prior to installing the new cutoff. Apparently the boiler had been failing to start due to sediment from the dirty water on the water level probe of the low water cut off. He advised me how to periodically clean out the boiler to prevent the problem from recurring. Contrary advice I got from my prior company led to this problem. Unlike me he knew exactly what he was doing. His solutions followed an expert step by step diagnosis which lead to finding what needed to be replaced and not replacing more than was necessary and then checking all controls to make sure the boiler is operating properly and safely. He was also a pleasure to work with: friendly and respectful. I learned three major lessons from this experience: 1. Don't assume that the solution to a problem will be the same solution next time the same problem arises. The main original problem was not a worn out thermocouple but rather dirty water. Correlation is not causation. 2. A little bit of knowledge can be a dangerous thing and never try to do possibly hazardous work when you are not clear headed no matter how smart or brave you think you are, and 3. Always call Ben if you have another problem with the boiler even if it is just replacing a thermocouple! Thanks again Ben

I will confess that I am always leery of service providers in areas that I know nothing about. My…read morewife found Ben and Brownstone Heating and AC online and we took the leap [overly dramatic]. They were on time, knowledgeable, friendly and efficient and the price was in line with what we were accoustomed to paying for similar service. Brownstone is a keeper and I added them to my contact list.

Excellent service and communication throughout. Max responded promptly to my Yelp request and…read morescheduled Oleksandr for a next-day visit. Oleksandr was extremely knowledgeable and fixed our heating issue quickly. I highly recommend this company. For context, we had hired another HVAC company two days earlier, and they were unable to diagnose or resolve the problem.

Our AC went out during the spring, which is what prompted us to call Airnizer HVAC--and I'm really…read moreglad we did. They came out quickly, were very responsive over both phone and email, and handled everything in a professional manner from start to finish. Their pricing was reasonable, and they were upfront about costs. They diagnosed and solved the issue swiftly, which was a huge relief given the heat. They also made sure to provide a COI, which we needed for our building, and they accept multiple forms of payment, making the process easy. Overall, a smooth, efficient experience. I'd highly recommend their services.

I highly recommend Main Duct. The service I received was very professional and well done. The two…read moreservice men were very considerate and keeping my area clean and in explaining the whole process thoroughly it was a pleasure working with them.

Easy to schedule an appointment. They were on time and did a good job . My tenant was satisfied…read morewith the quality

Very happy with Mr Air NYC ! My split unit air conditioner stopped working in the middle of the…read moreheat wave last week. After reaching out to Mr Air, the problem was solved quickly and efficiently. Not only was the installation great but the quality of service is too. The outdoor unit wasn't working because it needed to be cleaned - something I forgot to do last year - the unit looked fine to me but when the heat wave started, the problem worsened. The repairman arrived quickly and was very knowledgeable and honest. The units are now running perfectly and it's so cooool indoors. Five stars !

We are repeat customers, having installed splits on the top floor of our Prospect Heights…read morebrownstone several years ago. We're now adding them to our rental apartment and if anything Mr. Air has gotten even more excellent. From the design to install to maintenance, the office and field crews are top notch pros. Highly recommend.

All in all, the experience was reasonably good. The technician arrived on time and conducted…read morehimself with great professionalism; however, the work took slightly longer to complete than anticipated. The issue was ultimately resolved, but the fee struck me as somewhat high relative to the scope of the work. It wasn't bad, though it goes without saying that there is certainly room for improvement.

I had a hot water pipe that cracked I reached out to Jay and within a few hours he was able to come…read moreto my home weld the pipe do the repair clean up and out of here within 1hour! Reasonable, honest and professional! Highly recommended. Thank you for the great service!

Been using them for my parents house for over 10 years. They come and install the windows units…read moreevery summer season. At the end of summer I usually call them to have them remove it so I can close the window. Yet this time I was cheap and didn't call them to remove the unit. During the recent snow storm we got major drafts coming in that made it uncomfortably cold. So I called Joe and he had his guys out here in a jiffy to remove the unit. I think I'm finally gonna go w one of his custom installs for my parents house so I don't have to have them back out to remove it. Thanks Joe your team has been Epic!

Joe sent a guy out who was courteous to my tenants and saved me a lot of money in the long run…read more No, these guys are not the cheapest out there, but in my experience, they did what they said they would do, and they did it on time. Joe was a good guy to work with on the phone. He will certainly be the first one I call to service my other units.

My parents had them to repaire the unit. The guys arrived on time and did prompt repair. The number…read morenow is in the phone book. Thank you

Second time hiring Yev because he was so amazing the first time I utilized his service nearly 5…read moreyears ago. This time he's installed 2 new units for me, work is as great as the first time around! Having a dedicated professional installing ACs in NYC apts is truly the way to go. He responds quickly and is communicative about his arrival time. I've always bought my ACs from him and his prices are comparable to buying from Amazon, he brings them, installs them, and cleans up after himself. What more could you ask for?!

Very happy with the service. Found the number on Yelp,…read morecalled, they had a guy out within an hour. He was efficient and friendly, found the problem and had our split system up and running within a few hours. Highly recommend

scam, the company does not exist, they charged us money and when we wanted to pay for full service,…read morethere was no company under listed adress