Key Duplication in Duarte · 24/7 mobile

Key Duplication in Duarte, California

Crenshaw Lock Company provides mobile key duplication in Duarte, California, cutting house, office, mailbox and restricted keys on location. We are available 24/7 and come to your home, office or car. Call (323) 997-8867 to describe your key and talk through the options.

Mobile to your Duarte location
Available 24/7
Price quoted before we start

Call (323) 997-8867or tap to call — we answer 24/7

Key cutting machine duplicating a brass key

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Making a spare key sounds like the simplest job in the lock trade, and often it is. But a copy only helps if it turns smoothly the first time you need it, and a poorly cut duplicate of a worn original is one of the more common reasons people end up locked out. In Duarte, where so many homes were built in the 1950s and 1960s and the same keys have been in daily use for decades, the quality of the cut matters more than most people expect.

Crenshaw Lock Company is fully mobile. There is no storefront to drive to and no counter to wait at. We bring key-cutting equipment to wherever you are in Duarte, whether that is a ranch home in Butler, a condo near the A Line, or an office near the City of Hope campus, and we cut and test the keys right there, on the lock they are meant to operate. Locksmith work has been our business in Greater Los Angeles and Ventura County since 1987, led by owner David Shar.

Because we work on location, we can do things a kiosk cannot. We can check the key against the actual lock, copy a key that has gotten sticky, cut extras for a household that has grown, and talk through restricted or high-security keys that most hardware-store machines will not touch. If a copy reveals that a lock itself is worn out, we will tell you plainly instead of selling you keys for a lock that needs attention.

How it works in Duarte

1
Tell us about the key
Call (323) 997-8867 and describe what you need: a house key, mailbox key, office key, or a key stamped with a restriction notice. Tell us how many copies you want and whether the original works smoothly. This helps us arrive with the right blanks and equipment.
2
We come to you
We are mobile and available 24/7, so we travel to your Duarte home, workplace or vehicle. There is nothing to drop off and no store to visit. Your original key stays in your hands for the entire job.
3
Inspect the original and the lock
Before cutting, we look at the original key for wear, bending or burrs, and try it in the lock. Copying a badly worn key tends to pass the wear along, so if the original is struggling we discuss whether to cut from the key, or to code-cut or rekey instead.
4
Cut and deburr the copy
We match the correct blank to your keyway and cut the duplicate, then clean the edges so it does not drag pins or scratch the inside of the lock. Restricted keys are handled differently, and we will explain what authorization may be required.
5
Test on the actual lock
Every copy is tried in the lock it belongs to, several times, including the front door deadbolt, back door or gate lock. If a copy sticks or turns roughly, we adjust or recut it until it works the way the original should.
6
Review and next steps
We hand over the keys and mention anything we noticed, such as a loose deadbolt or a lock that is nearing the end of its life. You decide whether anything else is worth doing. No pressure.

Need key duplication in Duarte?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

What affects the price

The type of key: standard residential keys, mailbox keys, office keys, and high-security or restricted keys involve different blanks and different amounts of work.
How many copies you need, since cutting several keys in one visit is different from a single spare.
The condition of the original key; a worn or bent original may call for extra cutting care or a different approach.
Whether the key is restricted or patented, which can involve authorization steps and special blanks.
Time of day and urgency, since we are available around the clock including nights, weekends and holidays.
Whether the visit includes additional work such as rekeying, repairing a sticky lock, or replacing a worn deadbolt.

Why Duarte chooses us

Fully mobile: we cut keys at your door, so you never have to leave a home or office unattended to get a spare made.
Available 24/7, which matters when a lost key or a last-minute need for extra keys does not follow business hours.
Serving Los Angeles and Ventura County since 1987, with owner and lead technician David Shar behind the work.
Every copy is tested on your actual lock, not just compared to the original on a machine.
We tell you honestly when a lock is too worn for copies to help and a rekey or replacement makes more sense.
Experience with restricted keys and the process around them, rather than a flat refusal or a bad copy.

Key Duplication across Duarte

Duarte is a foothill city with a lot of long-held keys. In the Butler and Cotter neighborhoods, the single-story ranch and tract homes from the 1950s and 1960s often still run on locks that have seen decades of daily use. Keys that have been copied from copies, which are themselves copies, drift out of spec, and that is when a spare starts sticking in the deadbolt. We often see households in these areas who want front, back and garage doors working on fewer keys, and a fresh set of well-cut duplicates, sometimes paired with a rekey, is a sensible way to get there, particularly after buying a home.

Farther up toward Royal Oaks and the Fish Canyon area, homes tend to be custom and the property setups more varied: gate locks, side-yard doors, and outbuildings can each have a different key. If you are in ZIP code 91010 or 91009, we can come out and sort out which keys go with what, cut the extras, and test each one on location. Condos and apartments near the A Line often come with mailbox keys and building keys that have their own rules, and we can talk through what can and cannot be copied.

Duarte's working population includes many people tied to City of Hope, from clinicians to administrative staff, who may keep unusual hours and need a spare key made at odd times. Because we are mobile and 24/7, we can meet you at home or at an office after a shift rather than asking you to find a shop open on Huntington Drive. Whether you are near Encanto Park, off Mountain Avenue or Buena Vista Street, or just back from the Duarte Recreational Trail, we come to you.

Butler
Cotter
Royal Oaks
Fish Canyon area

Locked out or need a locksmith now?

24/7 Mobile Locksmith across Greater Los Angeles & Ventura County. We answer 24/7.

Call (323) 997-8867

Other Duarte locksmith services

See all of our Duarte services, or our citywide key duplication page.

Key Duplication in Duarte — FAQs

Can you make a copy of a key that says Do Not Duplicate?

Those markings are often not legally binding, but restricted keys are a separate matter and may require authorization. Call (323) 997-8867 with the details on your key and we will explain what is possible.

Do I have to bring my key somewhere in Duarte?

No. We are fully mobile and there is no storefront. We come to your home, office or vehicle in Duarte and cut the copies on location.

Are you available at night or on weekends?

Yes, we are available 24/7. If you need a spare key at an odd hour, such as after a hospital shift, call (323) 997-8867.

My original key is worn and sticks. Will a copy be better?

Not necessarily. A copy made from a worn key can inherit the wear. We inspect the key and the lock first, and if needed we suggest a rekey or lock repair instead of simply copying it.

Can you copy mailbox keys?

In many cases, yes. Mailbox keys vary by building and type, so it helps to describe where you live. Some shared or postal-controlled boxes have rules, and we will tell you honestly what is allowed.

Should I rekey after buying a home in Butler or Cotter instead of just copying keys?

If you do not know who has copies of the existing keys, a rekey is usually the better step, because it makes old keys useless. You can then have new keys cut so all your doors share one key. Call (323) 997-8867 to talk it through.

Can you make copies of high-security keys?

Often we can, depending on the key system. High-security and restricted keys involve special blanks and sometimes authorization, so describe the key when you call.

How do I know the copies will work?

We test each new key on the lock it is meant for, several times, before we finish. If one does not turn smoothly, we adjust or recut it.

Reviewed by David Shar — Owner & Lead Technician

Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.

Last updated 2026-10-12.

Key Duplication in Duarte, California

How it works in Duarte

Tell us about the key

We come to you

Inspect the original and the lock

Cut and deburr the copy

Test on the actual lock

Review and next steps