FORTUNE -- Matt Ehrlichman was between jobs 18 months ago when he and his wife started on that most old-fashioned of projects: building a home. Like many, he found himself frustrated by the challenges of finding good contractors and design inspiration to transform their parcel of land in Northeast Seattle.
So the tech entrepreneur did what entrepreneurs do: Ehrlichman co-founded a new digital endeavor, Porch.com, a site that adds social networking to home improvement and officially launches today (after three months in beta).
Think of it as an Angie's List—featuring Pinterest-worthy photos—meets a LinkedIn intended to connect users to professional plumbers, painters, and design firms. As it geared up for launch over the past year, Ehrlichman's crew has amassed listings of some 1.5 million professionals and data on more than 90 million home projects. In June, Porch raised $6.25 million in seed funding from more than 20 investors including eBay founder Jeff Skoll, SV Angel (co-founded by Ron Conway), Tesla backer Bill Lee, Foundation Capital partner Charles Moldow, and Facebook executive Javier Olivan.