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Crenshaw Lock

Deadbolt Installation in La Mirada · 24/7 mobile

Deadbolt Installation in La Mirada, California

Crenshaw Lock Company installs and replaces single- and double-cylinder deadbolts throughout La Mirada, California, 24/7. We are fully mobile and come to your door with hardware and tools. Call (323) 997-8867 to talk through your door and get a deadbolt that fits properly.

  • Mobile to your La Mirada location
  • Available 24/7
  • Price quoted before we start
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Deadbolt bolt extended into a reinforced strike plate
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A deadbolt is only as strong as the door and frame it sits in. In La Mirada, where so much of the housing is 1950s and 1960s single-story ranch homes on uniform lots, we often find original entry doors with a worn knob lock, a bolt that barely reaches into the jamb, or an old deadbolt that was installed crooked decades ago. Replacing or adding a deadbolt is one of the most practical security upgrades a homeowner or renter can make, and it is usually a job we can finish at your door in one visit.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are a 24/7 mobile locksmith, which means there is no storefront to visit. We travel to you, look at the door, and talk through your options before we drill or cut anything.

This page explains how a deadbolt installation works, what changes the cost, and what is specific to La Mirada: ranch tract homes, townhome and condo HOA communities, student housing around Biola University, and the commercial strips along Rosecrans and Imperial Hwy. If you are not sure whether you need a new deadbolt, a replacement, or just a rekey, call (323) 997-8867 and we will help you sort it out.

How it works in La Mirada

  1. 1

    Talk through the door and the goal

    We start by asking what you want to fix. Are you adding a deadbolt where there is only a knob lock, replacing a worn or damaged one, or upgrading after a move-in or break-in? We also ask about the door material, whether it is a solid-core, hollow, wood, metal, or glass-paneled door, and whether you want a single-cylinder or double-cylinder style.

  2. 2

    Inspect the door, bore holes, and frame

    On arrival we check the door thickness, the existing bore holes, the edge of the door, the strike plate, and the jamb. Many older ranch-home doors have been repainted or re-hung over the years, so alignment matters. If the frame is soft, cracked, or the strike is held by short screws, we point that out because it affects real-world strength more than the lock brand.

  3. 3

    Choose the right deadbolt

    Single-cylinder deadbolts use a key outside and a thumb-turn inside, which suits most homes. Double-cylinder deadbolts need a key on both sides and are sometimes used with glass near the door, but they have fire-exit and safety tradeoffs, so we discuss them honestly before you decide. We also cover keyed-alike options if you want your front and back doors to use one key.

  4. 4

    Install, align, and reinforce

    We install the deadbolt, set the latch and strike so the bolt throws fully, and confirm the door closes without binding. If needed, we use a reinforced strike plate with longer screws that reach the framing behind the jamb. The goal is a bolt that slides smoothly and seats firmly each time.

  5. 5

    Test and hand over keys

    Before we leave, we operate the lock repeatedly from both sides with the door open and closed, check the keys, and show you how it works. If you want other locks rekeyed to match, we can talk through that while we are there.

Need deadbolt installation in La Mirada?

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What affects the price

  • Whether you are adding a new deadbolt or replacing an existing one, since a new install may require drilling a fresh bore hole.
  • Single-cylinder versus double-cylinder hardware, and the grade and finish of the lock you select.
  • Door material and condition, including solid wood, metal, hollow-core, or glass-paneled doors that may need extra care.
  • Frame and strike reinforcement, such as a longer-screw strike plate or repair of a damaged jamb.
  • The number of doors, and whether you want them keyed alike for one-key convenience.
  • Time of day and location, since we are available 24/7 and after-hours calls can affect the total.

Why La Mirada chooses us

  • Fully mobile service: we bring hardware to your La Mirada door instead of asking you to come to a shop, because we do not have a storefront.
  • In business since 1987, with owner and lead tech David Shar directing the work.
  • 24/7 availability, useful for urgent needs like securing a door after a lockout, a break-in, or a recent move.
  • We look at the frame and strike, not just the lock, because a strong bolt in a weak jamb does little good.
  • Straight advice on single versus double cylinder, including the safety tradeoffs of keyed-both-sides locks.
  • We explain the options before starting and let you decide, with no pressure to upgrade beyond what the door needs.

Deadbolt Installation across La Mirada

La Mirada was incorporated in 1960 and built as a master-planned suburb, so much of it is rows of single-story ranch homes on similar lots. In areas like East La Mirada and the streets near the La Mirada Civic Center, we commonly see original-era entry doors that have been painted many times, hardware that has been swapped over the decades, and strikes screwed only into the thin jamb trim. A fresh deadbolt with a properly set strike can make an older front door feel noticeably more secure. It is also a common step during a home sale, when a buyer wants new locks on the 1960s ranch they just purchased.

Near Biola University, in the ZIP 90639 district, many renters live in off-campus housing where locks may be old or keys have gone through many hands. Late at night, a 24/7 mobile locksmith can be the practical option for securing a door. We work from the road, so whether you are near Biola Ave, off La Mirada Blvd, or closer to Valley View Ave, call (323) 997-8867 and we will plan the visit. We also serve ZIP codes 90637 and 90638.

La Mirada also has townhome and condo HOA communities, including those off Rosecrans Ave, where hardware needs can extend beyond one front door to pool gates, common-area doors, and cluster mailboxes. For commercial strips along Rosecrans and Imperial Hwy, we can discuss deadbolts for back doors and storage rooms. Whether you live near La Mirada Regional Park or commute along I-5, we can tailor the installation to the door in front of us.

Locked out or need a locksmith now?

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Other La Mirada locksmith services

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

Deadbolt Installation in La Mirada — FAQs

Can you install a deadbolt on a door that only has a knob lock?
Often, yes. If the door is thick enough and in good shape, we can drill the additional bore hole and install a deadbolt above the knob. We check the door and frame first. Call (323) 997-8867 to describe your door.
Should I choose a single-cylinder or double-cylinder deadbolt?
Single-cylinder is the usual choice for homes because the inside thumb-turn lets you exit quickly. Double-cylinder may be considered near glass panels, but it needs a key to get out, which raises safety and fire concerns. We will talk through it before you decide.
Is a deadbolt replacement the same as rekeying?
No. Rekeying changes the internal pins so old keys stop working, while replacement swaps the hardware itself. If your deadbolt is in good shape and you just need new keys, such as after buying a ranch home in escrow, rekeying may be enough.
My ranch home's front door is old. Can it still take a new deadbolt?
Usually. Many 1950s and 1960s doors work fine if the wood is sound. We inspect the door edge, bore hole, and jamb, and may suggest a reinforced strike plate with longer screws for added strength.
Can you install deadbolts for a student rental near Biola University?
Yes, we work with renters and landlords. If you are a tenant, check your lease or ask the landlord before changing locks. If you need help late at night, call (323) 997-8867 and we can talk through the situation.
Do you handle HOA or multi-door jobs?
We can discuss jobs involving multiple doors, pool gates, common-area locks, or mailboxes for townhome communities. Details depend on the hardware involved, so we would need to see what is installed.
Do I need to come to a shop to pick out a deadbolt?
No. Crenshaw Lock Company is fully mobile and has no storefront. We bring options to you and install on site.
Can I get several doors keyed alike?
Yes. We can set up front, back, and side doors to work with one key when the hardware allows. It is a convenient upgrade when you are replacing more than one lock.
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