A-1 JDS Lock is your full service locksmith service located in Billings, Montana. Serving Billings and Yellowstone County. When you are locked out - call us now for fast service! Don't be left out in the cold! * Residential - homes, condos, apartments, duplexes, mobile homes. * Commercial - stores, shops, warehouses, offices. * Automotive - cars, trucks, vans, recreational vehicles. We are a full service locksmith. Available 24 hours a day, 7 days a week, 365 days a year. We are available by phone or by text message.