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Crenshaw Lock

Deadbolt Installation in Northridge · 24/7 mobile

Deadbolt Installation in Northridge, California

Crenshaw Lock Company installs and replaces single- and double-cylinder deadbolts throughout Northridge, California, 24/7. We are fully mobile and come to your door. For a stronger front door, a student rental or a horse property, call (323) 997-8867 to talk through what you need.

  • Mobile to your Northridge 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 upgrades that makes a real difference to how secure a door is. In Northridge, the need comes in several forms: a 1960s ranch tract home with original hardware that has worn out, a student apartment near CSUN that needs a stronger lock between tenants, or a Sherwood Forest property with outbuildings and gates that all need dependable locks. Each situation calls for a slightly different approach.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar built the business around coming to the customer. We are mobile only, with no storefront to visit. We bring the hardware and tools to your door, whether that is a house off Devonshire Street or an apartment along Reseda Blvd, and we are available around the clock.

Deadbolt installation is not only about the lock. Door thickness, the condition of the strike plate, how well the frame is aligned and what the door is made of all affect how well a deadbolt works and how long it lasts. We look at the whole door before recommending anything, so the lock you end up with fits the door and does the job.

How it works in Northridge

  1. 1

    Talk through the door and your goal

    When you call (323) 997-8867, we ask whether this is a new deadbolt, a replacement or an upgrade, and what kind of door it is. We also ask whether you want a single-cylinder lock, keyed on the outside with a thumbturn inside, or a double-cylinder lock that is keyed on both sides.

  2. 2

    Inspect the door and frame on site

    We check the door's thickness and material, the existing bore holes and the frame. In older Northridge homes we pay close attention to alignment, since a frame that has shifted over the decades can make a new deadbolt bind no matter how good the lock is.

  3. 3

    Choose the right hardware

    We recommend a deadbolt suited to your door and use. For a front door that might mean a single-cylinder lock for easy exit. For a door with glass nearby, a double-cylinder may be worth discussing, along with the fire-exit tradeoffs, which we explain plainly.

  4. 4

    Install and reinforce

    We install the deadbolt, set the latch and strike so the bolt throws fully, and reinforce the strike area where the frame allows. Where a door needs a small bore or mortise adjustment, we make it cleanly rather than forcing the fit.

  5. 5

    Test, key and hand over

    We cycle the lock repeatedly with the door open and closed, confirm the keys work smoothly and show you how everything operates. If several locks should share one key, such as a house and a side gate, we can key them alike.

Need deadbolt installation in Northridge?

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 to a door with no bore or replacing an existing one, since new installs may involve drilling.
  • The grade and brand of the deadbolt you choose, from basic residential hardware to heavier-duty options.
  • Single-cylinder versus double-cylinder, and any special keying such as keyed-alike sets or restricted keyways.
  • Door and frame condition, including whether earthquake settling or age requires realignment, strike repair or reinforcement.
  • The number of locks in the job, such as a single front door versus a block of apartment units or several barn and gate locks.
  • Time of day and location, as after-hours and emergency calls differ from scheduled daytime visits.

Why Northridge chooses us

  • Fully mobile service, 24/7, so installation happens at your door with no trip to a shop.
  • Serving Greater Los Angeles and Ventura County since 1987, with David Shar as owner and lead technician.
  • We diagnose the door and frame, not just the lock, which matters on older tract homes with settled frames.
  • Experience with multi-unit work, including keying a group of student apartments in a consistent system.
  • Willingness to explain tradeoffs honestly, such as when a double-cylinder deadbolt is a good choice and when it is not.
  • Keyed-alike options for properties with multiple doors, barns and gates, so you carry fewer keys.

Deadbolt Installation across Northridge

Northridge has a mix of housing that shapes what people ask us for. The large 1950s and 60s ranch tract homes around the Devonshire residential area often still have their original hardware, and the doors have had decades to move. Many of these homes were also through the 1994 earthquake, whose epicenter was in neighboring Reseda, and frame settlement is a known issue. A deadbolt that no longer lines up with its strike is common, and the fix is often realigning the latch and strike, then rekeying or replacing the lock.

Around CSUN and along Reseda Blvd, Nordhoff St and Zelzah Ave, student rental apartments turn over often. Before a fall semester move-in, a property manager may need a block of units fitted with new deadbolts or rekeyed so previous tenants' keys no longer work. In Northridge Village and the newer condos, the question is usually simpler: a stronger deadbolt on a front door that has only a basic latch.

Sherwood Forest is different again. Its horsekeeping estates may need barn, tack-room and driveway-gate locks replaced and keyed alike, so one key handles the whole property. We serve ZIP codes including 91324, 91325, 91326 area neighbors and 91330, as well as 91327 and 91328, reaching homes near Northridge Fashion Center, Northridge Hospital Medical Center and along the Ronald Reagan Fwy (SR-118) corridor, day or night.

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 Northridge locksmith services

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

Deadbolt Installation in Northridge — FAQs

Do you install deadbolts at all hours in Northridge?
Yes. We are a 24/7 mobile locksmith, so you can call (323) 997-8867 any time to arrange a deadbolt installation or replacement.
What is the difference between single- and double-cylinder deadbolts?
A single-cylinder deadbolt uses a key outside and a thumbturn inside. A double-cylinder needs a key on both sides. Double-cylinders can help where glass is near the lock, but they can slow exit in an emergency, so we talk through the tradeoff with you.
My front deadbolt sticks in my 1960s Northridge home. Do I need a new lock?
Not always. Earthquake settling and age can shift the frame so the bolt no longer lines up with the strike. We often realign the strike or adjust the latch, then rekey or replace the lock only if needed.
Can you rekey a group of student apartments near CSUN?
Yes. We can rekey or install new deadbolts across multiple units, which is common before the fall semester. Call (323) 997-8867 to describe the number of doors and the system you want.
Can my house and gate locks use the same key?
Often, yes. We can key deadbolts, padlocks and gate or barn locks alike, which is handy for Sherwood Forest horse properties with several outbuildings.
Can you add a deadbolt to a door that does not have one?
In most cases. We check the door's thickness and material, then drill the needed bores and fit the latch and strike. Some thin or hollow doors may need reinforcement or a different solution.
Will a deadbolt make my door fully secure?
A good deadbolt strengthens a door, but the frame, strike plate and door itself matter too. We inspect all of these and suggest reinforcement where it helps.
How do I get a deadbolt installation quote?
Call (323) 997-8867 and tell us about the door, how many locks you need and what type you prefer. Price depends on hardware, door condition and job size, and we explain the factors before starting.
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