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Crenshaw Lock

Lock Rekeying in Monrovia · 24/7 mobile

Lock Rekeying in Monrovia, California

Crenshaw Lock Company provides mobile lock rekeying in Monrovia, California, available 24/7. We rekey your existing locks so old keys stop working, ideal after a move or sale. We come to your door with the tools to do it on site. Call (323) 997-8867.

  • Mobile to your Monrovia location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Lock cylinder opened for rekeying with pins and springs on a workbench
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Rekeying changes the inside of a lock so that a new key operates it and every previous key becomes useless. The lock, the handle, and the door stay as they are. When you buy a home, end a tenancy, part ways with an employee, or lose a key, rekeying is usually the most sensible way to take back control of who can get in, and it costs far less than replacing hardware.

Monrovia is a particularly good city for rekeying rather than replacing. Old Town and the streets around it hold a deep stock of Craftsman bungalows and Victorians from roughly the 1900s through the 1930s, many still wearing original mortise and rim hardware. That hardware has character that is hard to replace, and a skilled rekey lets you keep it while ending the question of who else holds a key.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are fully mobile, with no storefront to visit, and we are available around the clock. Whether it is a bungalow near Library Park, a hillside house north of Foothill Boulevard, or a shop on Myrtle Avenue, we bring the work to you.

How it works in Monrovia

  1. 1

    Call and describe the locks

    Call (323) 997-8867 and tell us what you have: a front door deadbolt, an old mortise lock, a rim lock, gate locks, or a mix. Mention whether it is a home or a business and why you want to rekey, such as a recent purchase. That helps us bring the right parts.

  2. 2

    We come to you

    We are mobile and available 24/7, so we travel to your Monrovia address with pinning kits, key blanks, and tools for both modern cylinders and older hardware. There is no shop visit and no need to remove your locks and bring them anywhere.

  3. 3

    Inspect each lock

    Before we touch anything, we look at each lock's brand, condition, and type. On older Craftsman doors we check how the mortise body and cylinder are set so we can rekey without damaging original finishes or the vintage door itself.

  4. 4

    Rekey the cylinders

    We remove the cylinder, replace the internal pins to match a new key, and reinstall it. Where it makes sense, we can set several locks to work with a single key so you carry one instead of a ring of them.

  5. 5

    Test and hand over new keys

    We test every lock with the new key, confirm the old key no longer turns, and check that bolts throw smoothly. If a lock is worn or failing, we tell you honestly whether more work is worthwhile, and leave the decision to you.

Need lock rekeying in Monrovia?

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

Call (323) 997-8867

What affects the price

  • The number of locks or cylinders being rekeyed, since each one is taken apart and reset individually.
  • The type of hardware: standard deadbolts, vintage mortise sets, rim locks, padlocks, and gate locks all take different handling.
  • Whether you want all locks keyed alike to one key or separate keys for different doors.
  • How many keys you need cut, and whether any are restricted or specialty keys.
  • Condition of the existing locks, since worn or damaged cylinders may need repair or replacement rather than a simple rekey.
  • Time of day and location, as after-hours calls and more remote driveways or hillside properties can affect the job.

Why Monrovia chooses us

  • Fully mobile: the work is done at your door, and there is no storefront to drive to.
  • Available 24/7, so a rekey after a late closing or an urgent lost-key situation does not have to wait for business hours.
  • In business since 1987, with the experience to handle older mortise and rim hardware, not just newer cylinders.
  • Preservation-minded: we aim to keep original Craftsman hardware and vintage doors intact instead of pushing replacement.
  • Honest assessments: if a lock is too worn to rekey well, we say so plainly and explain your options.
  • Residential and commercial in one visit, from a bungalow front door to a shop's back entry.

Lock Rekeying across Monrovia

In Old Town Monrovia, ZIP 91016, the bungalows and Victorians within a short walk of Library Park and the Metro A Line station often carry their original hardware. After a sale, rekeying those locks is a way to keep period character while making sure previous owners, contractors, and anyone else who once held a key no longer has access. The same is true of Mayflower Village, where older homes can have a long history of keys passed around.

North of Foothill Boulevard, in North Monrovia and the foothills toward Monrovia Canyon Park (ZIP 91017), hillside custom and mid-century homes are often on larger lots. A rekey after buying one of these properties can cover more than the front door: long-driveway gates, side-yard gate locks, and outbuildings all deserve attention, and we can bring them onto one key system.

Along Myrtle Avenue, near the Aztec Hotel and the rest of Old Town's walkable strip, shops and restaurants have mixed-age commercial locks and frequent staff changes. Rekeying a storefront or back door is a practical step when a manager leaves or keys go missing. Whether you are off I-210, Huntington Drive, or Mountain Avenue, we come to you.

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 Monrovia locksmith services

See all of our Monrovia services, or our citywide lock rekeying page.

Lock Rekeying in Monrovia — FAQs

What is the difference between rekeying and replacing a lock?
Rekeying changes the internal pins so a new key works and old keys do not, keeping the same lock hardware. Replacing swaps the whole lock. Rekeying is usually less costly and preserves the look of your door.
Should I rekey after buying a home in Monrovia?
Yes, it is a good idea. You cannot know how many copies of the old keys exist. Call (323) 997-8867 and we can rekey your locks so only the keys you hold will work.
Can you rekey original Craftsman mortise and rim locks?
In many cases, yes. We inspect the hardware first and aim to rekey it without harming the finish or the vintage door. If a particular lock is too worn, we will tell you honestly.
Can you make all my locks work with one key?
Usually yes. We can key multiple compatible locks alike, including front, back, and gate locks, so you carry a single key. Some specialty locks may not be compatible.
Do you rekey gate locks and padlocks on larger hillside lots?
Yes. We commonly handle driveway gates, side-yard gates, and outbuilding locks along with the main doors. Tell us what you have when you call (323) 997-8867.
Do you handle commercial rekeys on Myrtle Avenue?
Yes. We rekey storefront and back doors for shops and restaurants, which is helpful after staff changes or lost keys. We can also assist with lockouts.
Do I need to come to your shop?
No. We are fully mobile with no storefront. We come to your Monrovia location and do the work on site.
Are you available at night or on weekends?
Yes, we are available 24/7. Call (323) 997-8867 any time and we will talk through what you need.
DS

Reviewed by David Shar — Owner & Lead Technician

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

Last updated 2026-10-12.

Call (323) 997-8867 · Open 24/7