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(323) 997-8867
Crenshaw Lock

Lock Replacement in Tarzana · 24/7 mobile

Lock Replacement in Tarzana, California

Crenshaw Lock Company provides 24/7 mobile lock replacement in Tarzana, California. We come to your home, estate or Ventura Blvd office and swap worn, damaged or outdated locks for new hardware matched to your needs. Call (323) 997-8867 to talk through your door and get started.

  • Mobile to your Tarzana location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
New matte black lock set beside an old worn brass lock
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Locks do not last forever. Springs weaken, latches stick, finishes pit, and keys get copied until nobody knows who holds one. In Tarzana, where 1950s ranch homes on the flats sit a few minutes from custom estates in the hills and busy medical suites on Ventura Blvd, the reasons people replace locks vary a great deal. Our job is to match the replacement to the actual door and the actual problem, not to sell one package to everyone.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and David Shar leads the work. We are fully mobile, which means there is no storefront to visit. We bring hardware and tools to you, around the clock, and do the work on site so you can see what goes onto your door.

Lock replacement is different from rekeying. Rekeying changes the internal pins so old keys stop working while the hardware stays. Replacement makes sense when the hardware itself is failing, outdated, mismatched, or no longer gives the security level you want. We will tell you honestly which one your situation calls for, since sometimes a rekey solves the problem without a new lock.

How it works in Tarzana

  1. 1

    Call and describe the door

    Call (323) 997-8867 any hour. Tell us what the lock is doing, what type of door it is, and whether this is a home, gated property or office suite. That helps us bring suitable hardware to your address.

  2. 2

    On-site assessment

    We inspect the existing lock, strike plate, door edge and frame. Worn latches, misaligned doors and loose mounting often matter as much as the lock itself, and we point them out before any work starts.

  3. 3

    Choose the right hardware

    We discuss options such as deadbolts, handlesets, mortise sets, high-security cylinders or smart locks. We explain the tradeoffs in plain terms so you pick based on how you actually use the door.

  4. 4

    Removal and installation

    We remove the old hardware and fit the new lock, reinforcing the strike or adjusting the bore where needed. On older mortise doors, this can include careful extraction and fitting so the door is not damaged.

  5. 5

    Keying and testing

    We key the new locks the way you need, whether that is keyed alike across several doors or on a master system for an office. We test every key, the latch, and the deadbolt throw before leaving.

  6. 6

    Handover

    You receive all keys and any needed guidance on settings for smart locks. We also suggest simple follow-up steps, like what to do with old keys, so the replacement actually closes the security gap.

Need lock replacement in Tarzana?

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 lock chosen: basic deadbolt, high-security cylinder, mortise set or smart lock all differ in hardware cost and installation effort.
  • The number of locks being replaced and whether they should be keyed alike or on a master-key system.
  • Door and frame condition, including whether a bore needs adjusting, a strike plate needs reinforcing or an older mortise body needs rebuilding.
  • Whether the job involves a gate, intercom or electronic integration, as on many hillside estates.
  • The time of day and urgency of the call, since we serve 24/7 and after-hours work differs from scheduled work.
  • Any extraction of a seized or damaged lock before the new hardware can go in.

Why Tarzana chooses us

  • Fully mobile and available 24/7, so replacement can happen at your door on your schedule rather than at a shop counter.
  • In business since 1987, with David Shar leading the work and bringing long experience with older mortise and builder-grade hardware.
  • We will tell you when a rekey or repair is enough and replacement is not needed, so you do not pay for hardware you do not need.
  • Comfortable across residential, estate and commercial settings, from ranch-home deadbolts to master-keyed office suites.
  • We inspect the door and frame, not just the lock, because a new lock on a loose strike or warped door only gives a false sense of security.
  • Clear explanation of options in plain language, with no pressure toward the most expensive product.

Lock Replacement across Tarzana

Tarzana splits naturally along Ventura Blvd, and the locks on each side tell different stories. On the flats north of the Boulevard, in the 91356 area around Reseda Blvd, Tampa Ave and Lindley Ave, many 1950s ranch homes and apartments still carry mixed builder hardware that has been patched over decades. We see seized mortise locks, tired deadbolts and keys copied past counting. A replacement here often means fresh hardware that fits the original door cleanly.

South of the Boulevard, toward the Santa Monica Mountains and Mulholland Dr, and around the El Caballero area near El Caballero Country Club, properties tend toward custom and gated estates. Replacement there can involve high-security cylinders, smart locks and coordination with driveway gates and intercoms. A common situation is a change in household staff, where the owner wants new hardware and new credentials rather than trusting old keys. ZIP 91357 and nearby streets include a mix of these homes and quieter residential blocks.

Along the Ventura Blvd medical and commercial corridor, near Providence Cedars-Sinai Tarzana Medical Center, professional suites need a different approach. After staffing changes, an office may want replacement cylinders and a clean master-key structure so each person has access to only what they need. We work around US-101 traffic and business schedules, and since we are mobile, we simply meet you at the suite or home.

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 Tarzana locksmith services

See all of our Tarzana services, or our citywide lock replacement page.

Lock Replacement in Tarzana — FAQs

What is the difference between lock replacement and rekeying in Tarzana?
Rekeying changes the internal pins so old keys stop working while keeping the same lock. Replacement installs new hardware. If your lock is in good shape, rekeying may be enough. If it is worn, damaged or outdated, replacement makes more sense. Call (323) 997-8867 and we will help you decide.
Do you offer lock replacement at night or on weekends?
Yes. We are available 24/7 and fully mobile, so we can replace locks at your Tarzana home or office at any hour. Call (323) 997-8867 to discuss the job.
Can you replace the old mortise lock on my ranch home?
Often yes. Many older Tarzana flats homes have mortise locks that have seized or worn out. We can extract the old body, rebuild or replace it, and fit new hardware without unnecessarily damaging the door.
Can you install smart locks on a gated hillside property?
We can install smart locks and discuss how they fit alongside gates and intercoms, which are common south of Ventura Blvd. Compatibility depends on your existing system, so we look at it on site before recommending hardware.
My medical office on Ventura Blvd had staff turnover. What should I do?
Replacing or rekeying the cylinders and setting up a clear master-key structure is a common solution. We can assess the suite, explain the options and complete the work at a time that suits your practice.
How much does lock replacement cost?
It depends on the lock type, number of doors, door and frame condition, keying needs, any electronic integration, and the time of the call. We explain the factors and the options on site before work begins.
Do I need to visit your shop?
No. We are fully mobile and have no storefront. We bring the hardware and tools to your door anywhere in Tarzana, including ZIP codes 91356 and 91357.
Can all my locks be keyed to one key?
Yes, in most cases we can key several new locks alike so one key works throughout. If you need different access levels, as in an office, we can discuss a master-key setup. Call (323) 997-8867 to plan it.
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