Everything you need to hire a licensed, trustworthy locksmith in Foster City. BSIS credentials explained, service costs broken down, and red flags to avoid.
From residential lockouts to commercial access control, here is what licensed locksmiths in Foster City provide and what each service typically costs in San Mateo County.
Home lockouts, deadbolt installation, rekeying after a move, and smart lock upgrades for Foster City homes and condos.
See residential details
Access control systems, master key suites, panic bar installation, and high-security cylinders for Foster City businesses.
See commercial details
Car lockouts, transponder key programming, key fob replacement, and ignition repair throughout San Mateo County.
See automotive details
Locked out of your home or car? Licensed Foster City locksmiths can typically respond within 20 to 40 minutes during posted hours.
See emergency details
Change who can enter without replacing hardware. Ideal after moving into a new Foster City home or losing a key.
See rekeying details
Upgrade to keypad, Bluetooth, or Wi-Fi-enabled locks. Professional installation ensures proper fit and alignment.
See smart lock details
The California Bureau of Security and Investigative Services (BSIS) licenses all locksmiths statewide. This is not optional: any locksmith operating without a BSIS license in Foster City or anywhere in California is working illegally.
Not all locksmiths in Foster City provide the same quality. Here are the three factors that separate trustworthy professionals from unscrupulous ones.
A BSIS license number you can verify online at bsis.ca.gov in 60 seconds is non-negotiable. This is the single most important credential to check before any locksmith enters your property.
Reputable locksmiths quote a price before starting work, not after drilling your lock. If a locksmith refuses to quote before starting or the final bill triples the estimate, those are red flags covered in our FAQ.
Good locksmiths provide a written receipt with their business name, BSIS number, service description, and final price. This paper trail protects you and proves the work was legitimate.
These ranges reflect current market rates in San Mateo County. Prices vary by lock type, vehicle make, job complexity, and the locksmith company selected.
| Service | Typical Range | Complexity | Notes |
|---|---|---|---|
| Residential lockout (door unlock) | $85 - $150 | Standard | Non-destructive entry; higher for deadbolts with restricted keyways |
| Rekeying (per lock) | $60 - $100 | Standard | Best option when moving into a Foster City home |
| Deadbolt installation | $100 - $200 | Standard | Hardware cost not included; Grade 1 recommended |
| Smart lock installation | $150 - $350 | Moderate | Includes programming and app pairing; hardware sold separately |
| Car key replacement (transponder) | $150 - $350 | Moderate | Programming required; luxury vehicles run higher |
| Car key fob programming | $75 - $200 | Standard | Varies by vehicle brand and fob type |
| Commercial access control (basic) | $200 - $600 | Moderate | Single-entry keypad or card reader; larger systems priced per door |
| High-security lock upgrade | $250 - $600 | Complex | Medeco, Mul-T-Lock, or ASSA ABLOY restricted keyways |
| Master key system (commercial) | $400 - $1,200+ | Complex | Depends on number of doors and access levels |
Data represents San Mateo County market averages as of early 2026. Get a written quote before authorizing any work.
Know the service you need (lockout, rekey, new install), your location, and any relevant details (vehicle make/model for automotive, door thickness for installs).
Call two or three licensed locksmiths before committing. Ask for a total estimate including any service or travel fees. Legitimate locksmiths quote before arriving.
Ask for the BSIS license number when you call. Look it up at bsis.ca.gov before the technician arrives. Thirty seconds of verification saves major headaches.
Before any work begins, confirm the price matches the phone quote. If the on-site price is significantly higher with no legitimate explanation, you can decline and pay nothing.
A proper receipt includes the business name, BSIS license number, itemized services, parts used, and final price. Keep it for warranty claims or disputes.
The most common Foster City locksmith scam: a directory ad lists a "$15 service call" locksmith. An unlicensed technician arrives, claims the lock must be drilled, and bills $300 to $800. Always verify the BSIS license before any work begins.
Foster City homeowners frequently ask whether smart locks are worth the upgrade. Here is an honest comparison based on security ratings, cost, and practical use.
Bottom line: A quality Grade 1 deadbolt professionally installed remains the best value for most Foster City homes. Smart locks add meaningful convenience features but require ongoing maintenance and a higher upfront investment.
These are illustrative experiences shared by Foster City and San Mateo County residents. Experiences vary by locksmith chosen.
"Used this guide to verify the BSIS license before letting anyone in. The tech arrived within 30 minutes, quoted me upfront, and rekeyed three locks for exactly what he said. The guide's red-flag list saved me from a sketchy listing I almost called first."
"Locked my keys in the car near the lagoon. The cost table helped me know I should be paying around $100, not the $400 the first person quoted. Found a BSIS-licensed locksmith who charged $95 and got to me in 25 minutes."
"Just moved into a Foster City condo and was nervous about the previous owner's keys. The rekeying guide explained exactly what to ask for and how much to expect. Got three deadbolts rekeyed for $210 total, which matches exactly what the guide said."
"Managing a small office building in Foster City. The commercial section helped me understand master key systems and access control options. Very useful for someone who had no idea where to start."
Foster City locksmiths typically cover all of the city's waterfront and lagoon neighborhoods, plus adjacent communities in San Mateo County.
Most Foster City locksmiths also cover San Mateo, Belmont, Redwood City, and other nearby Peninsula communities. Confirm service area when calling.
Locksmith costs in Foster City range from $75 to $400 depending on the service. A standard residential door unlock runs $85 to $150. Rekeying a lock costs $60 to $100. Car key replacement with programming typically runs $150 to $350. Commercial access control installation starts around $200. Always get a written quote before authorizing work.
Yes. Any locksmith operating in Foster City or anywhere in California is legally required to hold a BSIS Locksmith License. Ask for the number before they arrive and verify it at bsis.ca.gov. Working with an unlicensed locksmith leaves you with no recourse if something goes wrong.
Go to bsis.ca.gov and search by company name or license number. A legitimate locksmith will provide their number when asked and display it on their vehicle, invoices, and business cards. The check takes under one minute. If they cannot provide a BSIS number, do not hire them.
Rekeying changes the internal pin configuration of the existing lock cylinder so old keys no longer work. It costs $60 to $100 and keeps your current hardware. Lock replacement installs an entirely new lock and costs $100 to $250 plus hardware. Rekeying is the better choice when the lock is in good working condition, such as when moving into a new home.
No. Licensed California locksmiths are required to verify proof of ownership before opening any vehicle. Have your driver's license and vehicle registration ready. This is a legal safeguard for you. Any locksmith willing to open a car without documentation is not following California law.
Premium smart locks from Schlage and Yale match Grade 1 deadbolts in physical security. The main risk with smart locks is digital: weak Wi-Fi passwords or outdated firmware create vulnerabilities traditional locks do not have. A Grade 1 traditional deadbolt professionally installed is still an excellent and simpler choice for most homes.
Foster City locksmiths serve all neighborhoods including Beach Park, Treasure Isle, Shell Cove, Metro Center, Boothbay, Catamaran Park, Sea Colony, Edgewater Isle, and Mariner Square. Most also cover Redwood Shores, Belmont, San Mateo, and San Carlos. Always confirm the service area and any travel fees when calling.
Call a BSIS-licensed locksmith. While waiting, verify there are no other unlocked entry points and stay safe. Do not attempt to force entry yourself as door and frame damage is expensive. Most Foster City lockouts during posted hours are resolved within 20 to 40 minutes. Confirm the price before any work begins and ask for a written receipt.
Use this guide's checklist, verify the BSIS license, get a written quote, and make a confident hiring decision.
Foster City Locksmiths is an independent editorial resource. Cost data reflects San Mateo County market research from early 2026. BSIS licensing information sourced directly from bsis.ca.gov. We do not represent any specific locksmith company and do not receive referral fees. Read our full methodology.