Comfort Zone (301-570-4957) is simply amazing. They came out when our AC died unexpectedly mid August. They showed up on a Friday night afterhours to see how they can help. We interviewed 3 different companies and they were top notch, hands down. They are a husband/wife team (go girl in this business). Mike and Gretta are honest and hard workers. They gave a recommendation and answered my 100 questions. I was ready to install a much more expensive unit and they explained why that was not necessary. I just paid them and the cost was THOUSANDS less than the next estimate. My house was cool again within hours of completion. The area was clean and you'd never know that someone was there. They are patient, extremely knowledgeable and I felt that they only want to do what's best for me. I truly felt like I was their only client. I highly recommend them for service, installation or at least include them in a quote search. As an added bonus, they were able to install my new unit so compactly (if that's a word) that I gained new storage space. Love them. read more