Welcome to Castle Rock Construction Founded in 1994 by Jim Pitcher in San Jose, Castle Rock Construction is an award-winning design-build firm serving Napa Valley, Contra Costa Valley, San Rafael, Marin County, Danville, Suisun City and surrounding areas. Castle Rock Construction offers commercial and home remodeling, as well as custom home building. Specializing in vineyards, classic wine cellars, gourmet kitchens, first and second story additions, garage conversions, historical renovations, aging-in-place, barrier-free renovations, Castle Rock employs techniques that maximizes high performance and green building best practices. By providing quality craftsmanship at competitive prices, Castle Rock is one of the most comprehensive construction companies in Northern California. MAP Please see what our clients have to say about working with us. Review our portfolio, and read our consumer information section. Learn more about barrier-free, universal aging-in-place solutions or green resources and tax incentives. Give us a call, or use our online form to contact us.