A & A Lock & Key is a San Diego 24 Hour Locksmith and want to be your first choice for all your Automobile locksmith service, Residential, Emergency locksmith service and Commercial locksmith services. We are a Mobile Locksmith in San Diego in addition to providing you with the full range of locksmith service needs, we give our customers the confidence that we’ll get there fast, and that we’ll be there for them 24 hours a day, 7 days a week, and 52 weeks a year.