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Crenshaw Lock

Deadbolt Installation in Simi Valley · 24/7 mobile

Deadbolt Installation in Simi Valley, California

Crenshaw Lock Company provides mobile deadbolt installation in Simi Valley, California, available 24/7. We add or replace single- and double-cylinder deadbolts at your home, so you never have to visit a shop. Call (323) 997-8867 to talk through your door and get started.

  • Mobile to your Simi Valley 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 you can make to a door, and in Simi Valley it matters more than people expect. Much of the city is made up of 1960s through 1990s single-family tract homes, and plenty of them still run the original hardware or a worn Kwikset or Schlage deadbolt that has been turned thousands of times. Latches get loose, bolts barely reach into the frame, and keys have been copied from copies. Replacing or adding a deadbolt gives the door a solid, properly fitted lock.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead tech David Shar built the business around coming to you. We are fully mobile, with no storefront, so the work happens at your front door, your side door, or your back slider-adjacent entry, whichever needs attention. We are available around the clock, which helps when a move-out, a break-in attempt, or a damaged door makes waiting a bad idea.

This page covers how a deadbolt installation actually goes, what changes the cost, and what is specific to homes in Simi Valley, from older ranch houses in the Texas Tract to HOA-managed communities in Wood Ranch and Big Sky. 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 Simi Valley

  1. 1

    Talk through the door and the goal

    We start by learning what you want: a first deadbolt on a door that only has a knob, a replacement for a worn one, or a double-cylinder lock for a door with glass nearby. We ask about the door material, whether it is wood, steel, or fiberglass, and whether an HOA has hardware rules.

  2. 2

    Inspect the door, bore holes, and strike area

    On site, we check the existing holes, the edge bore, the door thickness, and the frame. A deadbolt is only as strong as what it bolts into, so we look for cracked jambs, loose strike plates, and gaps that would let the door flex.

  3. 3

    Choose the right hardware

    We help you choose between single- and double-cylinder, standard grades, keyed-alike options so one key runs several doors, and compatible smart or keypad models where appropriate. We explain the tradeoffs, including that a double-cylinder lock needs a key from the inside and has safety considerations.

  4. 4

    Install and reinforce

    We install the deadbolt, cutting or adjusting the bore if the door needs it, and set the bolt so it throws smoothly. Where the frame is weak, we recommend a longer-screw strike plate or reinforcement so the bolt has something solid to bite into.

  5. 5

    Test, key, and walk you through it

    We run the lock repeatedly with the door open and closed, confirm the bolt fully extends, and test every key. If you have several doors, we can key them to match. Before we leave, we show you how everything works.

Need deadbolt installation in Simi Valley?

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Call (323) 997-8867

What affects the price

  • Whether you are adding a brand-new deadbolt to a door or replacing an existing one, since new installs may require drilling and boring work.
  • The door itself: solid wood, hollow steel, and fiberglass each handle drilling and installation differently, and older doors may need repair first.
  • The grade and type of hardware you choose, from standard residential deadbolts to higher-security models, keypad units, or smart locks.
  • Single-cylinder versus double-cylinder, and whether you want multiple locks keyed alike so one key covers the front, back, and garage entry.
  • Frame and strike condition, including whether the jamb needs reinforcement or a heavier strike plate to make the lock worthwhile.
  • Time of day and the number of doors, since after-hours calls and multi-door jobs are scoped differently from a single daytime install.

Why Simi Valley chooses us

  • Fully mobile service: we bring tools and a range of deadbolts to your door instead of asking you to drive anywhere.
  • In business since 1987, with owner and lead tech David Shar leading the work rather than handing it off.
  • Available 24/7, so a broken lock or an urgent security upgrade does not have to wait for business hours.
  • We explain the door and frame before we sell hardware, and we tell you honestly when a rekey or strike-plate fix is enough.
  • Familiar with the mix of Simi Valley housing, from worn original hardware in 1970s ranch homes to HOA-standardized fixtures in newer gated communities.
  • We aim for a clean finish, careful boring, and a lock that throws smoothly, with no leftover mess on the door.

Deadbolt Installation across Simi Valley

Simi Valley homes vary a lot from one neighborhood to the next, and the right deadbolt job often depends on where you live. In the Texas Tract and similar streets near ZIP code 93065, many 1970s ranch-style tract homes still have original or well-worn Kwikset and Schlage hardware. Deadbolts there are often loose, sticky, or keyed to people who moved out years ago, so replacing them with fresh Grade-2 or SmartKey-style hardware is a common and sensible upgrade, especially after a tenant move-out.

Wood Ranch and Big Sky are newer 1990s-2000s developments, many of them gated or semi-gated, with modern deadbolts, HOA-standardized hardware, and a growing number of smart locks. Here the concern is usually matching finish and style, staying within HOA guidelines, and installing without scratching the door. Further toward the hills, Santa Susana Knolls has older, rustic, cabin-style homes on winding lanes, where doors can be non-standard in size and thickness, and a careful fit matters more than a one-size-fits-all kit. Bridle Path properties have their own mix of entries, including side and barn-style gates and doors that benefit from a closer look.

We work throughout the city, including ZIP codes 93063, 93065, 93062, 93064, and 93094, whether you are near the Simi Valley Town Center, Rancho Simi Community Park, or off Madera Rd, Tapo Canyon Rd, or Sycamore Dr. Because we are mobile, we come to wherever the door is. Call (323) 997-8867 any hour to discuss the job.

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Other Simi Valley locksmith services

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

Deadbolt Installation in Simi Valley — FAQs

Can you install a deadbolt on a door that does not have one?
Yes. If the door only has a knob or latch, we can bore for a deadbolt, fit the bolt and strike, and test the result. We first check the door thickness and material to be sure it can take the lock. Call (323) 997-8867 to describe your door.
Should I choose a single- or double-cylinder deadbolt?
A single-cylinder lock uses a key outside and a thumbturn inside, which is easier to exit quickly. A double-cylinder needs a key on both sides and is sometimes used near glass, but it can slow your exit in an emergency. We explain the tradeoffs for your door.
My Simi Valley home is a 1970s ranch with old Kwikset locks. Replace or rekey?
It depends on the condition. If the deadbolts still operate smoothly, a rekey may be enough. If they are loose, worn, or sticky, replacement is usually the better choice. We look at them on site and tell you honestly which makes sense.
I live in a gated HOA community in Wood Ranch. Are there rules?
Many HOAs set standards for hardware finish and style, so check your guidelines first. We can match finish and install carefully to avoid damaging the door. If you are unsure, call (323) 997-8867 and we can talk through options.
Can you install a smart or keypad deadbolt?
Yes, we can install compatible keypad and smart deadbolts and walk you through setup. We also talk through the tradeoffs, such as batteries and backup keys, so the lock fits how you actually use your door.
Do you offer 24/7 service for deadbolt work?
Yes. We are available around the clock and fully mobile, so we come to your Simi Valley address at any hour. We do not make timing promises, but you can reach us anytime at (323) 997-8867.
Will a new deadbolt help if my door frame is weak?
A deadbolt is only as strong as the frame holding the strike. If the jamb is cracked or the strike plate is loose, we recommend reinforcement so the lock can do its job. We check this on every installation.
Can several doors be keyed alike?
Yes. We can set up new deadbolts so the front, back, and side doors all work with one key, which is convenient for families and landlords managing a property after a move-out.
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