I first called upon a friend of a friends AC company (Bad Decision) they sent a tech out and billed me $95 for "No Issues Discovered, Runs Normal" however this was not the case. My AC would cycle on and off every 15 seconds and then again at 30 seconds, the tech said that was normal. I thought I was going mad, like the Edgar Allen Poe Book with the guy killing himself due to the scratching in the wall. But after looking through Yelp I saw 75 reviews of Dukes and all good, hey can't go wrong there right. Exactly! They were prompt to return my call on a Saturday morning, they sent Dustin out that same afternoon, he diagnosed the problem "a defrost circuit board". They ordered the part and came back out on Monday as planned and walla! All Fixed. They are familiar with Trane and have all of the right tools not just a set of gauges to test for a temperature spread. Pricing was spot-on-good too. After he was all done he even blew his loud Duke's of Air Horn from the van! Can we upload audio Yelp?