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Crenshaw Lock

Deadbolt Installation in West Covina · 24/7 mobile

Deadbolt Installation in West Covina, California

Crenshaw Lock Company installs and replaces single- and double-cylinder deadbolts throughout West Covina, California. We are fully mobile and available 24/7, so we come to your door whenever you need stronger security. Call (323) 997-8867 to describe your door and schedule installation.

  • Mobile to your West Covina 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
Open now(323) 997-8867

A deadbolt is one of the simplest ways to make a door harder to defeat, but only if it is fitted properly. In West Covina, where so much of the housing is 1950s and 1960s single-family tract construction, many original doors still carry a basic knob lock and little else. Adding a quality deadbolt, or replacing a worn one, is often the most practical security upgrade a homeowner can make.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead tech David Shar built the business around doing this kind of work carefully. Deadbolt installation is more than drilling a hole. The door, the strike plate, the screws, the backset, and the frame all determine whether the lock actually resists force. We look at all of it.

We are a mobile-only locksmith, with no storefront to visit. Our technician arrives with the hardware and tools needed to work at your home, apartment, or business, at any hour. Whether you want a single-cylinder deadbolt for a front door or a double-cylinder model for a door with glass nearby, we will explain the tradeoffs plainly and let you decide.

How it works in West Covina

  1. 1

    Talk through your door and your needs

    Call (323) 997-8867 and tell us about the door: wood, metal, or fiberglass, whether it already has a deadbolt, and whether you want a keyed-alike setup with your other locks. This helps us bring suitable hardware.

  2. 2

    Inspect the door and frame

    On site, we check the door thickness, the existing bore holes, and the condition of the jamb. A strong bolt in a weak frame does little, so we note anything that needs reinforcement before we begin.

  3. 3

    Choose single or double cylinder

    A single-cylinder deadbolt turns with a thumbturn inside. A double-cylinder needs a key on both sides, which can suit doors with glass nearby but affects how quickly you can exit in an emergency. We explain both so you can choose.

  4. 4

    Install and align the hardware

    We prepare the door if needed, fit the deadbolt, and install a strike plate with long screws that reach into the framing rather than just the thin trim. The bolt should throw smoothly and fully.

  5. 5

    Test, key, and hand over

    We operate the lock repeatedly with the door open and closed, confirm the keys work, and walk you through the finished installation. If you want other locks rekeyed to match, we can discuss that.

Need deadbolt installation in West Covina?

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

Call (323) 997-8867

What affects the price

  • Whether you are adding a new deadbolt or replacing an existing one, since a new installation may require boring holes in the door.
  • The grade and brand of the hardware you choose, from standard residential models to higher-security cylinders.
  • Single-cylinder versus double-cylinder, and any special function you want.
  • Door material and condition, including whether the door or jamb needs reinforcement.
  • The number of doors, such as a whole-house or apartment-unit project with keyed-alike locks.
  • Time of day and location, since we work 24/7 and travel to you.

Why West Covina chooses us

  • Fully mobile service, so the work happens at your door and there is no shop trip.
  • Serving Greater Los Angeles and Ventura County since 1987, led by owner David Shar.
  • Attention to the strike plate and frame, not only the lock, because that is where many installs fall short.
  • Honest guidance on single versus double cylinder, including the emergency exit tradeoff.
  • Available 24/7, including when a break-in scare or a lost key makes a new lock urgent.
  • Experience with both residential tract homes and apartment and commercial settings.

Deadbolt Installation across West Covina

West Covina is a large suburban city, and its housing varies a lot. Across much of the 91790 and 91791 area, you find post-war tract homes from the 1950s and 60s, where original front doors often have a basic latch and could benefit from a modern deadbolt with a reinforced strike. Many of those homes sit within easy reach of Azusa Ave, Vincent Ave, and Glendora Ave.

In the South Hills, between Interstate 10 and SR-60, hillside and view homes, some in gated areas, often call for higher-end hardware that matches the home's look. A high-security deadbolt upgrade or rekey on a view home is a common request, and we pay attention to finish and fit. Near Woodside Village and in the 91792 and 91793 ZIP codes, you will also find garden and mid-rise apartment complexes, where deadbolt installation and turnover rekeys off Azusa Ave or Amar Rd keep units secure between tenants.

We also handle commercial work around Plaza West Covina, Eastland Center, and the medical district near Emanate Health Queen of the Valley Hospital. Wherever you are in West Covina, 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 West Covina locksmith services

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

Deadbolt Installation in West Covina — FAQs

Can you install a deadbolt on a door that does not have one?
Yes. If your door has only a knob lock, we can bore the proper holes and install a deadbolt along with a reinforced strike plate. Call (323) 997-8867 to discuss your door.
Should I choose a single- or double-cylinder deadbolt?
Single-cylinder models use a thumbturn inside, making exit quick. Double-cylinder models require a key on both sides, which may suit doors with nearby glass but can slow escape in an emergency. We will help you weigh it for your door.
Do you install deadbolts in West Covina apartments?
Yes. We work with tenants, owners, and property managers on apartment doors, including turnover rekeys and new deadbolts near Azusa Ave and Amar Rd. Check lease rules first, and call (323) 997-8867 with questions.
Will a new deadbolt work with my existing keys?
It can. Depending on the brand, we may be able to key a new deadbolt to match your other locks, which means carrying one key for multiple doors.
Is a deadbolt only as strong as the door?
Largely, yes. The door, the jamb, the strike plate, and the screws all matter. That is why we check the frame and use long screws, not just fit the lock.
Do you offer deadbolt installation at night or on weekends?
Yes. We are 24/7 and fully mobile, so you can call (323) 997-8867 at any hour about installation or an urgent security concern.
Can you upgrade deadbolts on a South Hills home?
Yes. We can install or upgrade to higher-security hardware, and we pay attention to finish so it suits the home. We can also rekey existing locks at the same visit.
Do I need a deadbolt replaced if the key is just sticking?
Not always. Sometimes a worn or misaligned lock can be adjusted or rekeyed, but an aging or damaged deadbolt is often worth replacing. We will inspect it and tell you honestly.
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