About Us Duncanville Locksmith For Car & Auto, Residential, Commercial. Professional Locksmith Service In Duncanville TX. Established in 1999, our company has been providing services for more than 15 years now and we have earned a reputation for providing the best quality of service at very affordable rates. Schedule Now. We are a full service locksmith company that offers complete residential, commercial and automotive locksmith services to the entire Duncanville, Texas area.