Common questions about when to change locks, what it costs, and how to find a licensed locksmith.
What is the difference between rekeying and changing locks?
Rekeying changes the internal tumblers of the existing lock cylinder so old keys no longer work. Changing the lock replaces the entire hardware. Rekeying is less expensive ($25-$50 per lock) and is the right choice in most situations where the existing lock is in good condition.
Does California require locksmiths to be licensed?
Yes. California Business and Professions Code Section 7580 requires all locksmith businesses to hold a valid BSIS (Bureau of Security and Investigative Services) license. Always ask to see a technician's BSIS registrant card before allowing entry work to begin.
When should a tenant or new homeowner change the locks?
California Civil Code Section 1941.3 requires landlords to rekey or replace locks between tenants. New homeowners should rekey all exterior locks, as there is no way to account for all copies of the previous owner's keys. Rekeying is faster and less expensive than a full lock replacement in most cases.
How much does a lock change cost in California?
A professional rekeying typically runs $25-$50 per lock, plus a service-call fee. Replacing a deadbolt with a new ANSI Grade 1 lock costs $100-$200 including hardware and labor. High-security cylinders (Medeco, Schlage Primus) add $80-$200 above standard Grade 1 pricing.
What ANSI grade lock should I use on my front door?
ANSI Grade 1 is the recommended standard for all primary entry doors. Grade 1 locks are rated for 10 hammer blows at 600 pounds of force. Grade 2 is acceptable for secondary interior doors. Grade 3 hardware should not be used on exterior doors.
Can a locksmith make a car key without the original?
Yes, through a process called key origination from VIN. A licensed locksmith looks up the key cut code from the vehicle identification number and programs a new key to the car's immobilizer. Proof of vehicle ownership (title or registration) is required before any work begins.
How do I verify a locksmith is licensed in California?
Look up the business name or license number at the California BSIS License Search at bsis.ca.gov. You can also ask the arriving technician to show their individual BSIS registrant card, which includes their photo, name, registrant number, and expiration date.
What should I do if I am locked out of my home or car?
Call a BSIS-licensed locksmith in your area. Before they begin work, a reputable locksmith will ask for ID and proof of ownership or residency. Expect a service-call fee ($75-$100) plus a per-job rate. Ask for a firm total price before any work starts.
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