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Crenshaw Lock

Deadbolt Installation in San Fernando · 24/7 mobile

Deadbolt Installation in San Fernando, CA

Crenshaw Lock Company provides mobile deadbolt installation in San Fernando, California, 24 hours a day, 7 days a week. We add or replace single- and double-cylinder deadbolts at your door, wherever you are in the city. Call (323) 997-8867 to talk through your door and get started.

  • Mobile to your San Fernando 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 ways to make a door harder to defeat, but only if it is installed correctly. In San Fernando, the doors vary a lot. You will find early-20th-century bungalows with original wood doors, Spanish and craftsman homes with character worth preserving, postwar tract houses with standard hollow or solid-core doors, and older downtown buildings with storefront hardware. Each one calls for a different approach to boring, fitting, and aligning a bolt.

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 the customer. We are fully mobile, with no storefront to visit. We bring the hardware and tools to your door in San Fernando, whether you need a first deadbolt on a door that only has a knob latch, or a replacement for one that is worn, loose, or no longer trusted.

The work is more than screwing a lock into a hole. Strike plate placement, bolt throw into the frame, screw length, and the condition of the door and jamb all decide whether a deadbolt actually resists a kick or a pry. We look at the whole door and tell you plainly what it needs, including when the frame is the weak point and the lock is not.

How it works in San Fernando

  1. 1

    You call, we talk through the door

    Call (323) 997-8867 any hour. Tell us the type of door (wood, metal, or older vintage), whether you need a new deadbolt or a replacement, and whether you want single- or double-cylinder. We will help you sort out what fits before we arrive.

  2. 2

    We inspect the door and frame

    On site, we check the door thickness, existing bore holes, the jamb, and the strike area. A deadbolt is only as strong as the wood holding it, so we look for cracks, rot, or loose framing, which is common in older San Fernando homes.

  3. 3

    Choose the right deadbolt

    We go over single-cylinder (thumbturn inside) versus double-cylinder (key on both sides), and discuss trade-offs, including how a keyed-inside lock can affect getting out quickly in an emergency and fire-safety considerations. Then we match the hardware and finish to your door.

  4. 4

    Install and reinforce

    We bore or reuse the existing holes as appropriate, set the bolt so it throws cleanly into the frame, and fit the strike plate with long screws that bite into the stud where possible. On vintage doors, we work to keep the original look intact.

  5. 5

    Test and hand over keys

    We cycle the bolt repeatedly with the door open and closed, confirm smooth operation, and hand over the keys. If you want multiple locks keyed alike, we can set that up so you carry one key.

Need deadbolt installation in San Fernando?

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 brand-new deadbolt or replacing an existing one, since new installs may need boring a fresh hole in the door.
  • Single-cylinder versus double-cylinder hardware, and the grade and brand of lock you select.
  • Door material and condition, such as solid wood, metal, or an older vintage door that needs careful handling.
  • Frame and strike reinforcement, including whether the jamb needs repair or a heavier strike plate.
  • Number of locks, and whether you want them keyed alike for one-key convenience.
  • Time of day and urgency, since we operate 24/7 and after-hours calls involve different scheduling than a planned visit.

Why San Fernando chooses us

  • Fully mobile service: we come to your San Fernando door with hardware on hand, so there is no shop to drive to.
  • Operating since 1987, with owner and lead tech David Shar leading the work and standards.
  • Comfortable with older doors: we can fit modern deadbolts to early-1900s bungalow doors while respecting the original wood and look.
  • We assess the frame and strike, not just the lock, and tell you honestly if the door itself is the weak link.
  • Straight advice on single- versus double-cylinder, including safety trade-offs, rather than pushing the most expensive option.
  • Available 24/7, so a broken or compromised lock does not have to wait until morning.

Deadbolt Installation across San Fernando

San Fernando is a small independent city of about 2.4 square miles, surrounded by the City of Los Angeles, and nicknamed The Mission City. It is fully road-reachable via San Fernando Road, Truman Street, Maclay Avenue, Brand Boulevard, I-5, and CA-118, which makes it easy for a mobile locksmith to serve throughout ZIP code 91340.

Around Las Palmas Park, many homes are early-20th-century bungalows, some still carrying original mortise or skeleton-key locks. A common request there is upgrading to a modern deadbolt while keeping the vintage door, which takes careful measuring and a gentle hand. Near Layne Park and Recreation Park, you will find more postwar single-family homes where standard bore sizes make adding or swapping a deadbolt straightforward.

Downtown, along the San Fernando Mall and the Truman Street and San Fernando Road corridor, the early-1900s brick buildings with transoms and storefront doors have their own hardware quirks. If you run a business near San Fernando City Hall or the Lopez Adobe area and need a deadbolt added to a back or side door, we can look at what the door will accept. Mission San Fernando Rey de España sits just over the line in Mission Hills, and we also serve the surrounding area.

Locked out or need a locksmith now?

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

Call (323) 997-8867

Other San Fernando locksmith services

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

Deadbolt Installation in San Fernando — FAQs

Can you install a deadbolt on a door that only has a knob lock?
Yes. If the door is thick enough and in good shape, we can bore a new hole above the knob and fit a deadbolt and strike. Call (323) 997-8867 and describe the door so we can bring the right hardware.
Can a modern deadbolt go on an old bungalow door?
Often yes. Many early-1900s San Fernando doors can take a modern deadbolt if the wood is sound. We aim to keep the original door and its look, and we will tell you if a particular door cannot safely take the cut.
Should I choose single- or double-cylinder?
Single-cylinder has a thumbturn inside, making it quick to exit. Double-cylinder needs a key on both sides, which can help if there is glass near the lock but can slow escape in an emergency. We will walk through the trade-offs for your door.
Do you serve San Fernando at night and on weekends?
Yes. We are available 24/7 and fully mobile. Call (323) 997-8867 at any hour about a deadbolt that needs installing or replacing.
Will a new deadbolt make my door secure by itself?
Not always. A strong bolt in a weak frame can still fail. We check the jamb and strike plate and can reinforce them so the deadbolt performs as intended.
Can you key several deadbolts alike?
Yes. If you have a front and back door, we can set them up so one key works on both, which is convenient for homeowners and small businesses.
Do you install deadbolts for businesses downtown?
We can add or replace deadbolts on many doors, including some on older commercial buildings. Storefront and transom-era doors vary, so we inspect first to see what hardware fits.
Do I need a shop visit?
No. We are mobile only and have no storefront. We come to your door in San Fernando, and you can reach us at (323) 997-8867.
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