S.A. Locksmith & Security is a licensed, insured, and locally owned automotive locksmith serving San Antonio, Texas and surrounding areas including Alamo Heights, Stone Oak, The Dominion, Helotes, Converse, Schertz, Cibolo, New Braunfels, and Boerne. We specialize in Mercury key replacement, key fob programming, transponder key cutting, and ECU module services for every Mercury model on the road today. Whether you need a spare key, lost all your keys, or need emergency lockout assistance, our mobile locksmiths come to you — home, office, or roadside — 24 hours a day, 7 days a week. We use professional Ford IDS/FDRS and professional PATS programming tools to program keys at a fraction of dealer cost. Call (210) 348-3677 for fast, affordable Mercury locksmith service in San Antonio.

Licensed (LIC# B18010), insured, and BBB A+ rated, S.A. Locksmith & Security has been serving San Antonio since 2009. We back all work with a 90-day warranty on parts and labor plus manufacturer warranty on all hardware. Our no-damage guarantee means your vehicle is always safe in our hands. With response times under 20 minutes throughout San Antonio, we’re your fastest alternative to the dealership — at a fraction of the cost.