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Crenshaw Lock

Deadbolt Installation in Granada Hills · 24/7 mobile

Deadbolt Installation in Granada Hills, CA

Crenshaw Lock Company installs and replaces single- and double-cylinder deadbolts in Granada Hills, California, around the clock. Our fully mobile service comes to your door, whether it's a ranch home, an Eichler or a foothill property. Call (323) 997-8867 any day or night to plan your installation.

  • Mobile to your Granada Hills 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 and most effective upgrades you can make to a home's security, but only if it is fitted correctly. A bolt that doesn't line up with the strike, a strike plate held by short screws, or a thin door that flexes around the hardware can undo most of the benefit. In Granada Hills, where so much of the housing dates from the 1950s and 60s, doors and frames have often seen decades of use, so a proper installation starts with looking at what the door and jamb can actually support.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar built the business on mobile work. We have no storefront. We bring tools, hardware options and experience to your home, and we are available 24/7, so you can have a deadbolt added after a break-in scare, a move, or a lost key without waiting for shop hours.

We install new deadbolts on doors that never had one, and replace worn or outdated ones on doors that did. We can also set up a new deadbolt to match your existing keys, so you are not carrying a separate key for every door. We explain the choice between single- and double-cylinder models plainly, including the trade-offs, so you can pick what fits your household.

How it works in Granada Hills

  1. 1

    Talk through the door and your goals

    When you call (323) 997-8867, we ask which door it is, whether it already has a deadbolt, and what you want to achieve: a first deadbolt, a stronger replacement, or keying that matches other locks. That helps us bring suitable hardware.

  2. 2

    Inspect the door, jamb and strike

    On arrival we check the door's thickness, the condition of the edge and the frame, and how the existing latch sits. Older ranch-tract doors may have worn or previously drilled holes, and we look for anything that would weaken a new bolt.

  3. 3

    Choose single or double cylinder

    A single-cylinder deadbolt turns with a thumb latch inside. A double-cylinder needs a key on both sides, which can matter near glass but needs a plan for emergency exit. We lay out the pros and cons and let you decide.

  4. 4

    Install and reinforce

    We fit the deadbolt, set the bolt so it extends cleanly into the frame, and use a reinforced strike plate with longer screws that reach the framing behind the jamb, not just the trim.

  5. 5

    Test, key and hand over

    We cycle the bolt several times with the door open and closed, confirm it throws smoothly, and can key it alike with other locks where the hardware allows. You get your keys and a quick walkthrough.

Need deadbolt installation in Granada Hills?

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

Call (323) 997-8867

What affects the price

  • Whether you need a brand-new installation, which may involve drilling new holes, or a straightforward replacement of an existing deadbolt
  • The grade and style of deadbolt you select, including finish options that suit the look of your home
  • Single-cylinder versus double-cylinder hardware, and any extra keying needs
  • Door and frame condition, such as worn bores, split edges or a jamb that needs reinforcement
  • Number of doors, and whether you want them all keyed alike
  • Time of service, since after-hours and weekend calls can differ from daytime appointments

Why Granada Hills chooses us

  • Fully mobile service: the work happens at your door, with no shop trip and no storefront to visit
  • Available 24/7, so a security upgrade after a scare does not have to wait until morning
  • Serving the region since 1987 under owner and lead technician David Shar
  • Attention to the frame as well as the lock, because a deadbolt is only as strong as the jamb and strike behind it
  • Plain advice on single versus double cylinder rather than pushing one option
  • Care with period homes, choosing hardware and finishes that respect the character of mid-century entries

Deadbolt Installation across Granada Hills

Granada Hills is mostly a community of 1950s and 60s ranch tract homes, and many of those front doors still carry original hardware. In Old Granada Hills, around Chatsworth St, a newly purchased house often has a tired lockset and no real deadbolt, or one that has been loose for years. Adding a properly seated deadbolt and a reinforced strike is a practical first project for new owners, and we can key it to match other exterior doors. We work across the 91344 area and also 91394, near Balboa Blvd, Devonshire St and Zelzah Ave.

Balboa Highlands is a different situation. This gated Joseph Eichler mid-century modern tract has distinctive entries, and owners understandably want security without losing the period look. Doors there can be thinner or glazed, so we pay attention to cylinder style, finish and where a bolt can sit cleanly. Where a double-cylinder is considered near glass, we talk through the safety side of needing a key to exit.

Up toward the foothills near O'Melveny Park, Bee Canyon and Bull Creek, homes face dust, heat and sun that can make exterior hardware stick. A new deadbolt there should be fitted with that in mind, and we can look at how it works in your climate. Knollwood residents and anyone along San Fernando Mission Blvd or off the 118 and 405 can call (323) 997-8867 for mobile service at any hour.

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 Granada Hills locksmith services

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

Deadbolt Installation in Granada Hills — FAQs

Can you install a deadbolt on a door that doesn't have one?
Yes. We check that the door is thick enough and solid enough, drill the needed holes, and fit the bolt and strike. Call (323) 997-8867 to describe the door.
Are you available at night or on weekends in Granada Hills?
Yes. We are a 24/7 mobile locksmith, so you can call (323) 997-8867 at any hour about a deadbolt installation.
Should I choose single or double cylinder?
Single-cylinder is easier for quick exit from inside. Double-cylinder suits doors with glass nearby but requires a key to leave, which can be a safety concern. We help you weigh it for your door.
Can the new deadbolt use the same key as my other locks?
In many cases, yes. We can key a new deadbolt to match compatible existing locks so you carry fewer keys. Ask when you call (323) 997-8867.
Will a deadbolt work on my Eichler's entry door?
Often, yes, but these doors can be thin or glazed and owners care about appearance. We assess the door, discuss finishes and placement, and aim to protect the mid-century look.
My old ranch home's door seems worn. Is a deadbolt still worthwhile?
Usually. We inspect the door edge and jamb first, and reinforce the strike so the bolt has something solid to engage. If the frame is the weak point, we tell you.
Why does the strike plate matter so much?
A deadbolt is only as strong as what holds it. A reinforced plate with long screws anchors into the framing, which helps resist forced entry far better than short screws into trim.
Do I need to come to a shop?
No. We are fully mobile with no storefront, so the installation happens at your Granada Hills home. Call (323) 997-8867 to get started.
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