BDB Engineering Co., LLC is pleased to have you visit our new website! The Contractor's Choice for Streamlined Testing and Certification. Just One Point of Contact to Schedule, Test and Certify Installation. Certification Reports Typically Available The Next Day. Same Day On-site Expedited Service Available. No Delays Waiting for Final Inspection and C of O!   BDB Engineering Co., LLC    P.O. Box 26207  Phoenix, Arizona 85068   602.413.4808