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Residential
King Key Locksmith San Francisco

New locks on the door

Adding a deadbolt, a second lock, or hardware where there was none.

Before we touch the lock, you know what it will cost.

24/7Day, night, weekends
25 to 35 minOur emergency aim in SF
LicensedLIC# 7041 · verify with the State
Since 2019Insured, serving SF
4.9 on Google536 reviews, October 2026

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Call if you need someone right now. Otherwise send this and we will contact you back.

Or call 628-777-2341. We answer around the clock.

New locks on the door

Adding hardware to a door that never had it, putting a second lock above the first, or replacing what a landlord installed years ago with something that holds.

What decides the right lock

Not every lock fits every door, and the measurements matter before anything is drilled.

Where a deadbolt actually gets its strength

A deadbolt is only as strong as what it locks into. The strike plate on the frame should be held with long screws that reach the framing behind it, not just the trim. On many doors that change does more than a more expensive lock would.

Before you buy a smart deadbolt

A smart deadbolt usually fits the holes your current deadbolt uses. Check first that the existing bolt slides smoothly by hand with the door closed. If it drags, fix that before installing anything, or the new motor will strain against it.

Questions people ask

My door has no deadbolt. Can you add one?

Yes. We drill and fit the door for it, including doors that have never had a lock in that spot.

Do I need a second lock?

On some doors it is worth it, like ground floor entries and back doors onto alleys. On many it is not, and we will tell you which yours is.

Can you install a lock I already bought?

Yes, as long as it suits the door. Tell us the model when you call.

Reach us

One number, answered around the clock, in English, Spanish, Russian and Chinese. Not urgent? Pick the time. Same day, later in the week or on the weekend, whatever works for you.

628-777-2341

Answered day and night, every day of the year.

Email

contact@locksmithkingkey.com

Where we are

1050 Post St, San Francisco, CA 94109

LIC# 7041

California Bureau of Security and Investigative Services.

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