In the winter of 2008, our new business located in Gowanus, Brooklyn didn't have any HVAC installed. We had been working with a smaller company that had already hung and installed ductwork when we discovered that they couldn't pull DoB permits because they were not licensed. After working with them for months to get them a legitimate license, it proved impossible, and we fired them. Meanwhile, it was December, and freezing in the space. We had rental clients threatening to leave, and we were in trouble. After searching Angie's List, we found ALL HVAC, and made the call. They were there the next day, and 3 weeks later, we had our system fully installed and operational. There's a reason these guys were on Extreme Makeover: Home Edition. They are such pros, I can't even begin to explain. Peter and Richie were very communicative, and helped us to understand the process from beginning to end. The only reason I give a B for price is that it was a costly job; it should not reflect in any negative way on them, because they worked very hard to keep the job within our budget. I cannot recommend them highly enough. You can rest easy knowing they will do the job correctly and quickly, and will find creative ways to get you what you need. They always answer the phone, and couldn't be more friendly people. They are the ones for the job, hands down.