When a job prompted Eric and Melissa Wagner to relocate to North Carolina, Melissa wasn't sure whom they could trust to watch their Sherwood home while it was on the market. They didn't have family in the area. "We didn't want to have to ask neighbors," she says. Instead, the Wagners heard about WatchDOG LLC, a home watch service in New London. Not only did Ken Langenhahn's company make their home appear "lived in," WatchDOG's monitoring averted a disaster when a sump pump malfunction threatened to flood the Wagners' basement. And in only one year on the job, offering those services - couple...