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Crenshaw Lock

Deadbolt Installation in Walnut · 24/7 mobile

Deadbolt Installation in Walnut, California

Crenshaw Lock Company installs and replaces single- and double-cylinder deadbolts in Walnut, California, 24/7. Our fully mobile service comes to your door, whether it's a tract home, a gated Snow Creek residence or a hillside property. Call (323) 997-8867 to talk through your door and get started.

  • Mobile to your Walnut location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Deadbolt bolt extended into a reinforced strike plate
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A deadbolt is one of the simplest ways to make a door harder to defeat, but only if it is the right lock, installed correctly, in a door and frame that can support it. In Walnut, where much of the housing is 1970s-80s and later single-family tract on larger lots, we often see original builder-grade hardware, or a deadbolt that was fitted years ago and now sticks, spins loosely or no longer lines up with the strike plate.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and David Shar and our team bring that experience to every install. We are fully mobile, so there is no shop to visit. We come to your home, look at the door, and fit the deadbolt on site. That lets us check the things that decide whether a lock performs well: door thickness, bore holes, latch alignment, the strike plate and the frame behind it.

We install new deadbolts on doors that never had one, replace worn or damaged ones, and help you choose between single-cylinder and double-cylinder styles. We will tell you plainly when one type suits a door better than another, and when a different fix, such as reinforcing the frame, makes more sense than just adding hardware.

How it works in Walnut

  1. 1

    Call and describe the door

    Phone (323) 997-8867 any hour. Tell us which door it is, whether it already has a deadbolt, and what you want, such as a first-time install, a replacement or a rekey to match other locks. Photos or a description of the door help us bring the right hardware.

  2. 2

    On-site door and frame check

    We come to you and inspect the door's thickness, existing bore holes, edge condition and the frame. Many Walnut front doors are solid wood or fiberglass, and entry doors in newer custom homes can be metal or have decorative glass nearby, which affects the cylinder type we recommend.

  3. 3

    Choose the right deadbolt

    We explain single-cylinder (thumb turn inside) versus double-cylinder (key on both sides). Double-cylinder suits doors with glass nearby but can slow a fast exit in an emergency, so we talk through the tradeoffs and local fire-safety considerations with you before you decide.

  4. 4

    Install and align

    We fit the deadbolt, drilling or adjusting bores only as needed, and set the latch and strike plate so the bolt throws fully into the frame without binding. We recommend a longer-screw strike plate to anchor into the framing, not just the door jamb trim.

  5. 5

    Test, key up and hand over

    We cycle the lock repeatedly with the door open and closed, confirm smooth key action, and hand you the keys. If you want several doors keyed alike, or a deadbolt that matches an existing lock, we can set that up during the same visit.

Need deadbolt installation in Walnut?

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

Call (323) 997-8867

What affects the price

  • Whether the door is new to deadbolts (needs boring) or already has a bore that fits a replacement
  • The grade and brand of deadbolt you choose, from standard residential to higher-security cylinders
  • Single-cylinder versus double-cylinder, and whether you want keyed-alike across multiple doors
  • Door material and condition, including whether the edge or frame needs repair or reinforcement
  • Extras such as a reinforced strike plate, a smart or keypad deadbolt, or matching finishes
  • Number of doors done in one visit and the time of day you need us

Why Walnut chooses us

  • Fully mobile: we do the work at your door, so you never need to carry a door anywhere or visit a shop
  • Serving the area since 1987, with an owner-led approach under David Shar
  • Available 24/7, useful when a break-in attempt or a lost key makes a lock urgent
  • We check the frame and strike plate, not just the lock, because a strong bolt in a weak frame is still weak
  • We discuss single versus double-cylinder honestly, including the emergency-exit tradeoff
  • We are comfortable with the smart and keypad deadbolts common in newer Walnut homes

Deadbolt Installation across Walnut

Walnut sits between the San Jose Hills and Puente Hills, and its housing varies more than many people expect. Around Walnut Heights you will find larger-lot tract homes from the 1970s and 80s, where original hardware is often showing its age. In the gated Snow Creek community, owners frequently want deadbolts that coordinate with smart-lock or keypad systems, and we can work with those preferences. ZIP code 91789 covers much of this area, and we also serve 91788.

On the northern side, the Mt. San Antonio College area brings a mix of rental housing and student and commuter traffic along Grand Ave and nearby streets. Renters and landlords there often ask for a deadbolt added or swapped after a move-out or a lost key, and we can install or rekey for that situation. Closer to the hills, some equestrian properties have gates and outbuildings that need sturdier locks, and we can discuss options when we see the setup.

Whether you are off Valley Blvd, Lemon Ave, Nogales St or Pierre Rd, or near Suzanne Park or Creekside Park, we come to you from wherever we are working, with easy access via SR-60 and SR-57. Call (323) 997-8867 and tell us your street, and we will talk through the job.

Locked out or need a locksmith now?

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Other Walnut locksmith services

See all of our Walnut services, or our citywide deadbolt installation page.

Deadbolt Installation in Walnut — FAQs

Do you install deadbolts at night and on weekends in Walnut?
Yes. We are available 24/7 and fully mobile. Call (323) 997-8867 and we will discuss your door and get the job scheduled.
Should I choose a single-cylinder or double-cylinder deadbolt?
Single-cylinder uses a thumb turn inside and suits most doors. Double-cylinder needs a key on both sides and is mainly considered when glass sits near the lock. It can slow your exit in an emergency, so we review the tradeoffs with you first.
Can you add a deadbolt to a door that doesn't have one?
Usually, yes. We check the door's thickness and edge, then bore and fit the lock. If the door is too thin or damaged, we will tell you and suggest a repair or alternative.
My deadbolt spins or won't fully extend. Does it need replacing?
Not always. Misalignment between the bolt and strike plate is a common cause, especially as houses settle. We can often adjust it, but if the lock is worn we will replace it. Call (323) 997-8867 to describe the problem.
Can you install a smart or keypad deadbolt at my Snow Creek home?
Yes, we can install keypad and smart deadbolts. We will check that your door and any existing setup are compatible and walk you through how it works before we leave.
Will the new deadbolt match my other locks?
We can often choose a finish that matches your hardware, and we can key the new deadbolt to match your existing keys where the brand and keyway allow. Ask when you call.
Do I need to reinforce my door frame too?
A deadbolt is only as strong as the frame it bolts into. We inspect the jamb and recommend a reinforced strike plate with longer screws where it makes sense. That is your decision, and we explain why it matters.
Do you have a shop I can visit?
No. We are mobile only and come to you anywhere in Walnut. To book, call (323) 997-8867.
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