Residential Locksmith & Home Security in San Mateo, CA
Home lockout, rekeying, lock change, and smart lock installation. Licensed, bonded locksmiths serving San Mateo and all of San Mateo County — arriving in 15–30 minutes, available 24 hours a day, 7 days a week.
Professional Residential Locksmith Service in San Mateo, CA
Looking for a reliable residential locksmith in San Mateo? San Carlos Lock and Key provides fast, professional, and affordable residential locksmith services to homes, businesses, and vehicles throughout San Mateo and San Mateo County. Our licensed and bonded locksmiths arrive in 15–30 minutes — 24 hours a day, 7 days a week.
Emergency House Lockout
Locked out of your home? We arrive in 15–30 minutes and gain entry without damage — available 24/7.
Home Rekeying
Rekey your house locks after moving, lost keys, or a break-in — old keys stop working instantly.
Lock Change & Replacement
Full lock replacement for deadbolts, knob locks, and smart locks — all major brands.
Smart Lock Installation
Upgrade to keypad, biometric, and smart home locks — we install and program all brands.
"Fast, reliable, and professional. Showed up in 15 minutes in San Mateo. Highly recommended!"
— Verified Google Review · San Mateo, CA
Why Choose Us for Residential Locksmith in San Mateo?
Local & Nearby
We're right here serving San Mateo. Fast response times because we're your neighbors, not a national call center.
15–30 Min Response
Our mobile locksmiths are stationed throughout the Bay Area for rapid deployment to San Mateo.
Licensed & Bonded
California licensed, bonded, and insured for your protection and peace of mind.
4.9★ Local Rating
Trusted by hundreds of families and businesses in San Mateo and across the Peninsula.
Transparent Pricing
Upfront quotes with no hidden fees. Free estimates over the phone — call (650) 489-4463.
17+ Years Experience
Serving San Mateo for over a decade. Expert locksmiths, quality workmanship, every job.
Serving All of San Mateo, CA
94401
ZIP Code
15–30
Min Response
24/7
Available
Streets We Serve in San Mateo
Our locksmiths respond to residential locksmith calls on all major streets in San Mateo, including:
Not on this list? We cover all streets in San Mateo and nearby cities — just call us!
Residential Locksmith FAQ — San Mateo, CA
How fast can you get to my house in San Mateo?
Our average response time is 15–30 minutes in San Mateo and surrounding areas. We operate 24/7/365 for all residential locksmith emergencies.
Should I rekey or replace my home locks in San Mateo?
If the lock hardware is in good condition, rekeying is more affordable and just as secure. We recommend full replacement only when the lock is damaged or you want to upgrade.
Do you install smart locks for homes in San Mateo?
Yes! We install and program all major smart lock brands including keypad locks, biometric locks, and app-controlled locks.
Other Locksmith Services in San Mateo
We offer a full range of locksmith services throughout San Mateo and San Mateo County
Residential Locksmith in Nearby Cities
Same fast, professional residential locksmith service throughout San Mateo County
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Licensed & Bonded · 24/7 Service · 15–30 Min Response in San Mateo
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