Private-equity firms are spending millions of dollars to purchase HVAC, plumbing and electrical companies. Wall Street Journal reporter Te-Ping Chen joins host J.R. Whalen to discuss how it is boosting income for some skilled tradespeople as well as how it impacts services they provide to consumers.\n\n\n\nSign up for the WSJ's free Markets A.M. newsletter.\xa0\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices