More than ever, residents in Maryland, Virginia, and Washington DC are adding to their outdoor living space. Decks, patios, screened enclosures, and outdoor kitchens help make your backyard more comfortable for you, and more inviting for your guests. It also increases the value of your home.Design Builders, Inc. has offices in Howard County and Montgomery County, MD. Based on geography, we service parts of Fairfax County, Arlington County, Loudoun County, Montgomery County, Howard County, Anne Arundel County, Prince Georges County, as well as Northwest Washington DC. Please call to confirm service to your area.