24HR Douglas Lock Technologies - 10% Discount for Locksmith in San Francisco, CA - (415) 390-2281. Douglas Lock Technologies, 24 HR of leading locksmith professional services. In Douglas Lock Technologies we're offering solutions for residential, commercial, emergency and many more. We are presenting deadbolt replacing, deadbolt installment, doors repairing, car lockout, doors opening, gates installation, high security locks, padlocks, master security locks, cabinet's locks, safe setups, duplication of lost ignition key... read full review »