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Crenshaw Lock

High Security Locks in El Monte · 24/7 mobile

High Security Locks in El Monte, California

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys across El Monte, California. We are a fully mobile locksmith available 24/7, and we come to your home, apartment or storefront. Call (323) 997-8867 to talk through what your doors need.

  • Mobile to your El Monte location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
High-security lock cylinder with a dimple key
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Most doors in El Monte were not built with serious security in mind. The city's post-war tract homes, many of them single-story stucco from the 1940s through the 1960s, often still carry the original-generation knob-and-deadbolt hardware or a decades-old replacement. Those locks keep honest people out, but they can often be defeated by picking, bumping or drilling by someone who knows how. A high security lock is built to resist those specific methods.

High security hardware is different from a standard deadbolt in several ways. It typically uses tighter-tolerance pin or sidebar mechanisms, hardened inserts that resist drilling, and key blanks that are restricted, which means copies cannot be cut at a hardware-store kiosk without authorization. The result is a lock that is much harder to attack quietly and a key you control. Since 1987, Crenshaw Lock Company, led by owner and lead technician David Shar, has been helping Los Angeles and Ventura County customers choose and install this kind of hardware.

We are mobile only. There is no shop to drive to; we bring the hardware and tools to your door in El Monte, whether that is a bungalow near Norwood, a courtyard apartment off Garvey Ave, or a storefront on Valley Blvd. We will look at the door, the frame and the strike before recommending anything, because a strong cylinder in a weak door is only part of a solution.

How it works in El Monte

  1. 1

    Talk through the problem

    Call (323) 997-8867 any hour. We ask what you are protecting, whether there has been a break-in or a key-control issue, and what doors are involved. That helps us arrive with the right hardware for your situation.

  2. 2

    Assess the door, frame and strike

    On site we look at the door material, the thickness, the frame and the strike plate. Many older El Monte homes have thin or worn frames, and a high security cylinder performs best when the door around it is sound.

  3. 3

    Choose the lock and key system

    We explain the options in plain terms: levels of pick, bump and drill resistance, restricted versus standard keyways, and whether you want keyed-alike locks for several doors. You decide what fits your budget and risk.

  4. 4

    Install and reinforce

    We fit the new deadbolt or cylinder, and where it makes sense we add a reinforced strike plate with longer screws that reach the framing. We make sure the bolt throws smoothly and the door closes without binding.

  5. 5

    Key issuance and testing

    We cut or issue your keys, test every lock with them, and explain how the restricted key process works if you need extra copies later. For multi-unit properties we can document which keys go with which doors.

  6. 6

    Follow-up guidance

    We leave you with practical advice on key control and on what to do if a key goes missing, so the lock keeps doing its job long after we have left.

Need high security locks in El Monte?

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

Call (323) 997-8867

What affects the price

  • The grade and type of lock chosen, since higher levels of pick, bump and drill resistance generally use more costly mechanisms.
  • Whether the key system is restricted or patented, which affects both the hardware and how additional keys are obtained.
  • The number of doors or cylinders, including whether you want them keyed alike for convenience.
  • Condition of the door and frame, as reinforcement of strike plates, jambs or door edges adds parts and labor.
  • Door type, such as a standard residential door, a mobile-home door with a narrow stile, or a commercial aluminum storefront, since each needs compatible hardware.
  • The time of day and the location of the job, because we operate 24/7 and after-hours calls can be priced differently.

Why El Monte chooses us

  • Fully mobile service: we bring hardware to your El Monte door, so there is no storefront trip and no need to leave a property unsecured.
  • Operating since 1987, with owner and lead technician David Shar directing the work and standards.
  • Honest recommendations: if a good standard deadbolt and a reinforced strike is all a door needs, we say so rather than upselling.
  • Experience with local housing, from aging tract-home hardware to mobile-home narrow-stile latches and aluminum storefront gates.
  • We look at the whole door system, not just the cylinder, because a lock is only as strong as the frame it sits in.
  • Available 24/7 for urgent upgrades after a break-in or a lost key.

High Security Locks across El Monte

El Monte's housing mix shapes what we install. In Norwood, where some 1920s and 1930s bungalows still stand among the later tract homes, doors and frames can be old and worn, so a high security deadbolt often goes hand in hand with a reinforced strike. In Mountain View, the single-story stucco homes of the post-war era commonly have builder-grade knob and deadbolt sets that are good candidates for an upgrade to pick- and bump-resistant cylinders. Around Downtown El Monte and the Valley Mall area, mixed residential and commercial use means we see everything from apartment entries to shop doors.

Multi-unit properties are a frequent need. A courtyard or garden apartment building off Garvey Ave that changes tenants often benefits from a restricted key system, since copies cannot be casually made and unit keys are easier to track. Mobile-home parks across the city have their own latch and deadbolt designs on narrow-stile doors, so we match the hardware to those doors rather than forcing a standard fit. Along Valley Blvd and Garvey Ave, aluminum-storefront businesses with roll-up security gates can use drill-resistant cylinders and gate locks to reduce tampering.

We serve all of El Monte, including ZIP codes 91731, 91732, 91733, 91734 and 91735, from the I-10 and I-605 corridors to the neighborhoods near Santa Anita Ave, Peck Rd and Ramona Blvd. Whether you live near Gibson Mariposa Park, work close to the Metrolink station on Railroad St, or commute through the El Monte Bus Station, 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.

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Other El Monte locksmith services

See all of our El Monte services, or our citywide high security locks page.

High Security Locks in El Monte — FAQs

What makes a lock high security?
A high security lock resists common attacks such as picking, bumping and drilling, usually through tighter-tolerance mechanisms, hardened components and restricted key blanks. It is designed to take more effort and skill to defeat than a standard builder-grade deadbolt.
Is my older El Monte home a good candidate for an upgrade?
Usually yes. Many post-war tract homes still use aging knob-and-deadbolt hardware. We check the door and frame first, and often pair the new lock with a reinforced strike plate. Call (323) 997-8867 and we can talk through your door.
Can you install high security locks on a mobile-home door?
Yes, though mobile-home doors often have narrow stiles and unique latch systems, so we choose hardware that fits properly. We assess the door first and recommend a compatible option.
What is a restricted key?
A restricted key uses a blank that is controlled, so duplicates generally cannot be cut at ordinary key kiosks without authorization. That helps landlords and homeowners keep track of who holds a key.
Can you rekey several apartments after tenants move out?
Yes. For multi-unit buildings, such as courtyard apartments near Garvey Ave, we can rekey or upgrade the cylinders and organize keys by unit. Call (323) 997-8867 to discuss your building.
Do high security locks work for storefronts and roll-up gates?
They can. Drill-resistant cylinders and suitable gate locks help protect aluminum-storefront businesses, including those along Valley Blvd. We assess the door or gate first to choose compatible hardware.
Will a high security lock make my door burglar-proof?
No lock makes a door burglar-proof. What it does is raise the difficulty of certain attacks. Strong frames, reinforced strikes and good key control all matter, which is why we look at the whole door.
Do you have a shop I can visit in El Monte?
No, we are fully mobile and have no storefront. We travel to your home, building or business 24/7. Just call (323) 997-8867 and we will arrange the visit.
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