Sentry Locksmith – Warren, MI Sentry Locksmith & Door Service is a mobile locksmith servicing the Warren, MI 48089 area that specializes in Residential, Safes, and Commercial locksmith services. Sentry Locksmith provides exceptional and timely locksmith service to Macomb, Oakland, and Wayne Counties in Southeast Michigan’s surrounding areas. If you’re locked out, need keys duplicated, or need other mobile locksmith Read more...