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(323) 997-8867
Crenshaw Lock

Lock Installation in Rosemead · 24/7 mobile

Lock Installation in Rosemead, California

Crenshaw Lock Company installs new locks on new doors and on doors that never had one across Rosemead, California. We are fully mobile and available 24/7, coming to your home, ADU or business. For lock installation, call us any time at (323) 997-8867.

  • Mobile to your Rosemead location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
New deadbolt being fastened to a white front door
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Lock installation is different from rekeying or repair. Nothing is being fixed here. We are putting hardware on a door that has none, or on a door that was just built, converted or replaced. In Rosemead that happens constantly: a garage turned into a bedroom or rental unit, a new side entry cut into a 1950s stucco ranch, a fresh exterior door on an addition, or a new storefront door in a retail strip.

The work starts with the door itself. A new lock only protects you if the door, the frame and the strike are up to the job. We check the door's thickness and material, the position of the bore, the condition of the jamb, and whether the latch will land properly in the strike. A deadbolt in a hollow, weak jamb is mostly decoration, so we tell you honestly what the door needs and do the installation to hold up.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead tech David Shar. We are mobile only. There is no storefront to visit, so the whole job happens where your door is, with the tools and hardware to complete it on site, day or night.

How it works in Rosemead

  1. 1

    Tell us about the door

    Call (323) 997-8867 and describe what you are securing: a new exterior door, a garage-conversion entry, an ADU, an interior office door or a storefront. Tell us the door material and what kind of lock you want, whether a deadbolt, knob, lever, or keypad.

  2. 2

    Inspect the door and frame

    On arrival we look at the door's thickness, material and existing preparation, then check the jamb and the spot where the strike will sit. If the door needs boring, we plan the cuts. If the frame is soft or damaged, we point that out before work begins.

  3. 3

    Prepare the door

    Where no hole exists, we mark and bore the door for the lock and the latch, keeping the cuts clean so the hardware sits flush and the door does not weaken. Wood, metal and aluminum-storefront doors each call for a different approach.

  4. 4

    Install the lock and strike

    We mount the lock body and cylinder, set the latch, and install the strike plate in the jamb. Where it makes sense, we recommend a reinforced strike with longer screws that reach into the framing instead of just the trim.

  5. 5

    Test and hand over keys

    We operate the lock repeatedly with the door open and closed, check alignment, and confirm the bolt throws fully. Then we hand over the keys or set up your keypad codes and explain how everything works.

Need lock installation in Rosemead?

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

Call (323) 997-8867

What affects the price

  • Door material: wood, hollow-core, solid-core, steel and aluminum storefront doors each take different prep time and tooling.
  • Whether the door is already bored for a lock or we must cut new holes from scratch.
  • The hardware you choose, from a basic deadbolt to a keypad or higher-security cylinder, and its grade.
  • Number of locks and doors in one visit, such as several ADU or apartment entries done together.
  • Condition of the frame and jamb, and whether a reinforced strike or minor carpentry fix is needed.
  • Time of day and urgency, since we work 24/7 and after-hours calls are scheduled differently than planned daytime jobs.

Why Rosemead chooses us

  • Fully mobile service: we bring the tools and hardware to your door anywhere in Rosemead, with no shop to drive to.
  • Open since 1987, so we have installed locks on the same kinds of doors found throughout the San Gabriel Valley for decades.
  • We assess the door and jamb first and tell you plainly if the frame needs reinforcing, instead of just bolting hardware onto a weak spot.
  • We handle both residential doors and commercial aluminum-storefront doors, which need different techniques.
  • Available 24/7, so a new unit or freshly built door does not have to sit unsecured overnight.
  • Owner-led: David Shar stands behind the work, and we explain options without pushing the most expensive hardware.

Lock Installation across Rosemead

Rosemead is a dense valley-floor city built largely on single-story stucco and ranch homes from the 1950s and 1960s, and many of those properties have changed over the years. Garages have become bedrooms, ADUs have gone up in back yards, and additions have created new entries that need their own locks. In North Rosemead and South Rosemead, we often install deadbolts and knob sets on converted-garage doors and new side entries, where the framing may be older and the door was never designed for the unit it now serves. Homes in ZIP codes 91770, 91771 and 91772 all share this mix of original construction and later additions.

The Garvey district and the Valley Boulevard and Garvey Avenue corridors bring commercial work: aluminum-storefront doors on markets, restaurants and retail strips, where a new or relocated door needs a proper commercial lock rather than a residential one. These doors have narrow stiles and specialized hardware, so the installation is a different job than a wood entry door. We also work near larger properties such as the area around Rosemead Place and the Southern California Edison campus, where businesses and neighbors sometimes need additional interior or service-door locks.

Whether you are off Rosemead Boulevard near the I-10, close to San Gabriel Boulevard, or by Garvey Park and the edge of the Whittier Narrows Recreation Area, we come to you. Landlords preparing a new ADU, owners finishing a remodel, and shop operators opening a space can call (323) 997-8867 at any hour.

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Other Rosemead locksmith services

See all of our Rosemead services, or our citywide lock installation page.

Lock Installation in Rosemead — FAQs

What is the difference between lock installation and rekeying?
Installation puts a lock on a door that has none, or on a new door. Rekeying changes the internal pins of an existing lock so old keys stop working. If you are unsure which you need, call (323) 997-8867 and we will sort it out.
Can you install a lock on my converted garage or ADU door in Rosemead?
Yes. Converted garages and ADUs are common here and usually need a new entry lock or deadbolt. We check the door and frame, install suitable hardware and give you working keys or keypad codes.
Do you install locks on commercial storefront doors?
Yes. We install locks on aluminum-storefront doors for markets, restaurants and shops along Valley Boulevard and Garvey Avenue. These doors need hardware made for narrow stiles, which we select to match your door.
Can you drill a new hole if my door has no lock bore?
Yes. We bore the door for the lock and latch and prepare the edge. We take care to keep the cuts clean so the door stays strong and the hardware sits flush.
Will you tell me if my door frame is too weak?
Yes. We inspect the jamb and strike area before installing. If it is soft or damaged, we explain options such as a reinforced strike with longer screws so the new lock actually protects the door.
Can I get a keypad or smart lock installed?
We can install keypad locks and walk you through setting codes. Tell us the model or ask for recommendations when you call (323) 997-8867, and we will confirm it fits your door.
Do you come out at night or on weekends?
Yes. We are 24/7 and fully mobile. If a new door or unit needs securing outside normal hours, call (323) 997-8867 and we will arrange the visit.
Can you install several locks at once for a rental or multi-unit property?
Yes. Landlords and property managers often have us do multiple doors in one visit. We can match keys across locks if you want, which keeps the job organized and efficient.
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