I was having AC problems. I called two of the ""bigger"" guys and my quote was over $1,000. I had doubts, but I don't know about fixing anything so what could I do? I was driving to a friends house and saw Simple Air's number advertised on someone's lawn. I figured it was worth a shot...afterall, could it be worse than $1,300 average I was quoted from the big boys? So I called and Simple Air sent out a rep who physically took me up to my attic (my request) and showed me what was wrong. He said only certain parts needed replacement or servicing, not what I had been told previously. Long story short: I saved around $500 and my air is working just in time for spring and summer. I'm not telling you to use these guys, but at least give them a call...it worked for me!!