J&B Construction Co. has begun construction of a $235,000 facility.

J&B Construction Co., Milwaukee, residential roofing and sheet-metal specialists, has begun construction of a $235,000 facility next to its existing offices and warehouse at 4380 N. Green Bay Ave., which will serve as the firm’s new office headquarters. The 6,000-square-foot facility will additionally house roofing materials and state-of-the-art equipment for the company’s cedar-shingle department and three asphalt-shingle crews.