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Crenshaw Lock

Lock Replacement in Signal Hill · 24/7 mobile

Lock Replacement in Signal Hill, California

Crenshaw Lock Company provides mobile lock replacement in Signal Hill, California, 24 hours a day, seven days a week. We come to your home, business or gate and swap worn, damaged or outdated locks for new hardware. Call (323) 997-8867 to describe your door and get started.

  • Mobile to your Signal Hill 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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Signal Hill is a small city with an unusual mix of buildings. Within a short drive you can pass older bungalows, hillside townhomes from the 1990s and 2000s, view estates on redeveloped oil land, auto dealerships along Cherry Ave, and parcels where oil pumpjacks still work. Each of those places wears out locks in its own way, so replacing a lock here is rarely a one-size-fits-all job.

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. There is no storefront to visit: we bring the tools, the hardware and the know-how to your door, whether the lock is stiff, broken, outdated, or simply no longer trustworthy because keys have gone missing over the years.

A replacement is different from a rekey. Rekeying changes the internal pins so old keys stop working, while the hardware stays. Replacement makes sense when the lock itself has failed, is corroded, no longer matches the look or security level you want, or is a smart lock or keypad that has stopped responding. We will tell you honestly which option fits your situation, and we do not push a swap when a simpler fix will do.

How it works in Signal Hill

  1. 1

    Call and describe the problem

    Reach us at (323) 997-8867 any time of day or night. Tell us what the lock is doing, what kind of door it is on, and whether it is a deadbolt, knob, lever, keypad, smart lock or gate padlock. A clear description helps us bring the right hardware.

  2. 2

    We come to you

    Because we are fully mobile, a technician travels to your Signal Hill address, whether that is a hillside townhome near Hilltop, a house in the Discovery Well district, or a commercial lot off Cherry Ave. We do not quote arrival times, but we are available around the clock.

  3. 3

    Inspect the door and existing hardware

    We check the lock, strike plate, latch alignment and the door itself. Sometimes a sticking lock is really a sagging door or a worn strike, and sometimes the cylinder is corroded or the electronics have failed. We explain what we find before any work begins.

  4. 4

    Choose the right replacement

    We talk through your options: standard deadbolts, higher-security cylinders, keypads, smart locks, or HOA-compatible hardware. We consider your door preparation, how many keys you need, and whether you want matching keys across several doors.

  5. 5

    Install, test and key it

    We remove the old hardware, fit the new lock, align the latch and strike so it throws smoothly, and cut or program keys or codes. We test every function repeatedly with the door open and closed before we consider the job done.

  6. 6

    Hand over keys and walk through use

    We give you the keys, show you how any keypad or smart features work, and point out simple maintenance habits. If old keys are still floating around, we discuss how to be sure they no longer open anything.

Need lock replacement in Signal Hill?

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, from a basic knob or deadbolt to a high-security cylinder, keypad or smart lock, since the hardware itself is the largest variable.
  • How many locks are being replaced at once and whether you want them keyed alike so one key opens every door.
  • The condition of the door and frame, including whether the bore, latch or strike plate needs adjustment or repair to fit the new lock.
  • Whether the job involves specialty or commercial hardware such as gate locks, heavy padlocks, or corroded cylinders on industrial or oil-field parcels.
  • Time of day and urgency, since an after-hours or emergency call involves different scheduling than a planned daytime replacement.
  • Programming needs, such as setting up smart lock codes, integrating with an HOA access system, or cutting additional keys.

Why Signal Hill chooses us

  • Serving Greater Los Angeles and Ventura County since 1987, so we have seen the failures that come with older doors and newer smart hardware alike.
  • Fully mobile and available 24/7: we come to your door rather than asking you to bring a lock to a shop, and we have no storefront.
  • Owner-led by David Shar, so the standards of the business come from someone with decades of hands-on experience.
  • We recommend rekeying when it is enough and replacement when it is truly needed, rather than defaulting to the bigger job.
  • Familiarity with Signal Hill's mix of older homes, hillside townhomes with keypads and smart locks, auto dealership needs and industrial gate hardware.
  • We test every lock thoroughly and explain how it works before we leave.

Lock Replacement across Signal Hill

Signal Hill sits on a hill entirely surrounded by Long Beach, and its ZIP code, 90755, covers a surprisingly varied set of properties. Up in the Hilltop area near the summit and Hilltop Park, many homes are 1990s and 2000s townhomes, condos and view estates built on redeveloped oil land. These often came with keypads, smart locks or HOA-managed access, and after a couple of decades those electronics can lag, lose programming or simply fail. Replacement or reprogramming is a common request there.

Down in the Discovery Well district, around Discovery Well Park where oil was found in 1921, you find older homes with original hardware that has seen decades of use. Worn deadbolts, loose knobs and mismatched keys collected over the years are typical reasons to replace locks. Residents who walk the Panorama Promenade between the two parks often tell us they want better security on a house they have lived in for a long time.

Signal Hill is also still an active oil field, and the Cherry Avenue auto corridor around the Signal Hill Auto Center adds a commercial side. Perimeter gates and padlocks on pumping sites and industrial parcels suffer from corrosion and weather, and freed-up or replaced cylinders keep them secure. Dealerships along Cherry Ave sometimes need lost-key or fob programming for inventory or a customer vehicle. Whether you are near I-405, Spring St, Willow St or California Ave, call (323) 997-8867 and we will 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 Signal Hill locksmith services

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

Lock Replacement in Signal Hill — FAQs

What is the difference between rekeying and replacing a lock in Signal Hill?
Rekeying changes the internal pins so old keys stop working while keeping your existing hardware. Replacement swaps the whole lock. We recommend replacement when the lock is worn, corroded, damaged, outdated or a failing smart device. Call (323) 997-8867 and we will help you decide.
Do you offer lock replacement 24/7?
Yes. We are available 24 hours a day, seven days a week, and we are fully mobile, so we come to your location in Signal Hill. Call (323) 997-8867 any time.
Can you replace a smart lock or keypad on a hillside townhome?
Yes. Many townhomes and condos built in the 1990s and 2000s have keypads or smart locks that eventually fail. We can reprogram them or replace them, and we can discuss options that work with any HOA access rules you have.
Can you free up corroded gate locks and padlocks at an oil or industrial site?
Yes. Perimeter gates on active pumping sites and industrial parcels often have corroded cylinders and padlocks. We can free them up, rekey them or replace them, depending on their condition and your security needs.
Do you help car dealerships on Cherry Ave?
We can help with lost-key and fob programming for inventory or a customer vehicle. Call (323) 997-8867 with the vehicle details and we will tell you what is possible.
Do I need to come to your shop?
No. We are mobile only and have no storefront. We bring the tools and hardware to your door anywhere in Signal Hill.
How is the price of a lock replacement determined?
It depends on the type of lock, how many doors, the condition of the door and frame, any specialty hardware, programming needs and urgency. We explain the factors and the plan before work begins.
Can all my locks be keyed alike?
In most cases, yes. Many homeowners prefer one key for every exterior door. Tell us which doors you want included and we will recommend compatible hardware.
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