Best Drain Unclogged in Phoenix AZ

We were contacted by Penguin Air about a $10.00 HVAC inspection. We thought we would try it. Ryan was the service technician. Penguin Air uses technology/ text to let you know the tech is on his way. Our tech Ryan, was on time, he called us & gave a 30 minutes out heads up. Much appreciated. Lots of companies say they will do this but it doesn't happen. Ryan got right to work checking, testing & answered our questions. Very efficient, personable, good communication & pleasant. Checked both units & price was as stated. Would request this service technician again. Just hope they don't mysteriously go out as others have complained about with these types of specials with various companies.