I highly recommend AirVantage and John. His prices were competitive, his crews polite and they cleaned up everything when the job was done. There was one minor issue and they were extremely quick to respond.
I was going to delay my second unit until next year but John advised me of new federal regulations that would make the units more expensive then. As a result I was able to save money and get both systems replaced. I am also seeing a very nice reduction in my electric bill. HR Russell