High Security Locks in Willowbrook · 24/7 mobile
High Security Locks in Willowbrook, California
Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and keys throughout Willowbrook, California. We are fully mobile and available 24/7, so we come to your home, apartment building or office. Call (323) 997-8867 to talk through your door and your options.
- Mobile to your Willowbrook location
- Available 24/7
- Price quoted before we start

A standard deadbolt from a hardware store is built to a price, not to resist a determined person. High security locks are different. They use tighter tolerances, hardened steel inserts, and more complex key and pin designs so that picking, bumping, drilling and forced entry take far longer and are far less likely to succeed. For many Willowbrook households and businesses, that extra resistance is a practical upgrade rather than a luxury.
Willowbrook has a mix of buildings that each call for a different approach. Many homes are modest post-war stucco and wood-frame houses from the 1940s and 50s, often with older locks that have been rekeyed or patched over the years, then supplemented with security doors and window bars. Around the hospital and university campus there are institutional and medical-office buildings, and along Wilmington, Central and Imperial there are commercial strips with roll-up gates. A high security cylinder suits each of these, but the right product and installation are not the same.
Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are mobile only, with no storefront to visit. We bring the tools and hardware to your door, look at what you actually have, and recommend only what makes sense for the way you live or run your business.
How it works in Willowbrook
- 1
Talk through your situation
Call (323) 997-8867 and tell us what you are protecting and what worries you: a recent break-in, a tenant turnover, a medical office, or an old door that never felt solid. We will ask about the door, the frame and the existing lock so we can arrive prepared.
- 2
Inspect the door and frame on site
A strong lock is only as good as the door around it. We check the door material, the strike plate, the frame and any security door or bars. On older Willowbrook homes, worn wood and short screws are common weak points we point out honestly.
- 3
Choose the right level of protection
We explain the differences between high security cylinders, deadbolts and restricted keyways, including which resist picking, bumping and drilling. We help you decide whether a single upgraded deadbolt or a full set of doors makes sense.
- 4
Install and reinforce
We fit the new hardware, and where needed add a reinforced strike plate or longer screws so the lock and frame work together. For security doors and gated entries, we make sure the lock operates smoothly with the extra hardware.
- 5
Key control and handover
Many high security systems use restricted key blanks that are harder to copy without authorization. We test every lock and key, explain how to order additional keys, and make sure you leave with everything working.
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What affects the price
- How many doors or entry points you want upgraded, from one front door to every exterior door and gate.
- The security grade and key system chosen, including whether you want a restricted keyway with controlled key duplication.
- The condition of the door and frame, since reinforcing a worn wood frame or strike area adds work and materials.
- Whether the lock must work with an existing security door, window-bar release or roll-up gate.
- Whether the work is for a single home, a multi-unit property needing matched or master-keyed systems, or a commercial or institutional space.
- The time of day, since we are available 24/7 and after-hours or emergency calls are scoped differently from scheduled work.
Why Willowbrook chooses us
- We have served Greater Los Angeles and Ventura County since 1987, so we have seen how older homes and mixed-use buildings behave over decades.
- We are fully mobile and available 24/7, which means upgrades after a break-in do not have to wait for store hours.
- We look at the whole entry, door, frame, strike and security door, rather than just selling a lock.
- We recommend what fits your property. A rental unit, a 1950s house and a medical-office suite have different needs, and we say so plainly.
- The owner, David Shar, leads the work, so there is accountability on the job.
- We explain restricted key systems clearly so you understand who can and cannot duplicate your keys.
High Security Locks across Willowbrook
In Willowbrook, high security work often starts with the housing stock. Around the Willowbrook/Rosa Parks transit district, near the station at Imperial Highway and Wilmington Avenue, there are small apartment buildings and multi-unit properties where rental turnover is a regular reason to upgrade and rekey. A restricted-key cylinder gives landlords better control over who holds copies, which matters in ZIP code 90059 and the neighboring blocks where buildings change hands and tenants often.
Near the MLK Jr. Medical Campus area, institutional and medical-office buildings have different needs: controlled keys, durable hardware, and reliable operation for staff who come and go. We can also work with nearby Charles R. Drew University of Medicine and Science area businesses and offices. In ZIP codes 90222 and 90061, many 1940s and 50s homes have aging locks plus added window bars and security doors, and a high security deadbolt paired with a reinforced strike can make a real difference after a break-in.
We also serve neighboring Watts and Compton, and we reach customers along I-105, I-110, Wilmington Avenue, Central Avenue, Imperial Highway and Alondra Boulevard. Because we are mobile, we come to wherever the door is. Call (323) 997-8867 any time to schedule.
- Willowbrook/Rosa Parks transit district
- MLK Jr. Medical Campus area
- Watts (adjacent, City of LA)
- Compton (adjacent city)
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Other Willowbrook locksmith services
Access ControlInstall keypad, card and fob access-control systems for business entrances.
Automotive LocksmithMobile auto locksmith for cars, trucks, motorcycles, RVs and fleets.
Broken Key ExtractionKey snapped in a lock or ignition? We extract the piece and cut a replacement.
Business LockoutLocked out of a store, office or commercial building? Rapid commercial entry.
Car Key ReplacementReplace lost or broken car keys — cut and programmed on site, even with no original.
Car LockoutKeys locked in the car or trunk? Fast, damage-free vehicle unlocking.
Commercial Door HardwareRepair and replace storefront, aluminum-frame and mortise door hardware.
Commercial LocksmithBusiness locksmith for offices, stores, warehouses and industrial sites.
Deadbolt InstallationAdd or replace single- and double-cylinder deadbolts for stronger doors.
Door Closer RepairRepair, adjust and replace hydraulic door closers on commercial doors.
Emergency Locksmith24/7 emergency dispatch for lockouts and urgent lock failures across Greater LA.
Gate Lock RepairRepair and install gate locks and latches, including keypad and smart gate locks.
House LockoutLocked out of a house, apartment or condo? Damage-free entry on location.
Ignition RepairRepair or replace ignition cylinders and fix keys that won't turn.
Key DuplicationCut and copy house, office, mailbox and restricted keys on location.
Key Fob ReplacementReplace and program remote key fobs and smart/proximity keys.
Lock InstallationInstall new locks on new doors or where none existed before.
Lock RekeyingRekey existing locks so old keys stop working — ideal after a move or sale.
Lock RepairFix sticking, jammed, loose or misaligned locks, deadbolts and latches.
Lock ReplacementSwap worn, damaged or outdated locks for new hardware keyed to your needs.
Mailbox Lock ReplacementReplace and rekey residential, cluster and community mailbox locks.
Master Key SystemDesign and install master-key and restricted-key systems with key control.
Panic Bar InstallationInstall and repair panic bars, exit devices and emergency-exit hardware.
Residential LocksmithFull home locksmith service — rekeys, replacements, repairs and upgrades.
Safe LocksmithOpen, repair and service home and commercial safes; change combinations.
Smart Lock InstallationInstall, set up and troubleshoot smart, keyless and keypad locks.
Transponder Key ProgrammingProgram chip/transponder keys to your vehicle's immobilizer.
See all of our Willowbrook services, or our citywide high security locks page.
High Security Locks in Willowbrook — FAQs
What makes a lock high security?
Do I need a high security lock on an older Willowbrook home?
Can you install high security locks after a break-in?
Will a high security lock work with my security door?
Do you work with landlords and multi-unit properties?
Can you help with medical-office or institutional doors?
How is price determined?
Do you have a shop I can visit?
Reviewed by David Shar — Owner & Lead Technician
Crenshaw Lock Company has served Greater Los Angeles & Ventura County since 1987.
Last updated 2026-10-12.