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About
Mile High Locksmith® Denver Locksmith Services is the trusted locksmith serving Thornton, Colorado, with a wide range of security solutions for homes, cars, and businesses across the Denver area. Our specialties include 24/7 emergency lockouts, residential rekeying and lock installation, car key replacement and programming (including smart keys), ignition repair, and comprehensive commercial security—from high‑security locks to access control systems. What sets us apart is a customer‑first approach backed by fast, friendly service, transparent pricing, and technicians who show up ready to help. With a 4.8/5 rating from 6,521 reviews, Mile High Locksmith is trusted by thousands for reliable, high‑quality security solutions you can count on—delivered with care in Thornton and beyond.