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Crenshaw Lock

Deadbolt Installation in Whittier · 24/7 mobile

Deadbolt Installation in Whittier, California

Crenshaw Lock Company installs and replaces single- and double-cylinder deadbolts in Whittier, California, 24/7. Our fully mobile service comes to your home or business, from Uptown bungalows to East Whittier tract houses. Call (323) 997-8867 to talk through your door and get started.

  • Mobile to your Whittier 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 least expensive ways to make a door meaningfully harder to defeat, but only when it is the right bolt, fitted properly, in a door and frame that can support it. Whittier makes that last part interesting. The city has genuine age to it, and a deadbolt that suits a 1960s tract-home slab door is not automatically right for a 1920s Craftsman entry with its original hardware and trim.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We are fully mobile, so there is no storefront to visit. We come to the door, look at what is actually there, and install a deadbolt that fits the door, the way you use it, and the look of the house.

Whether you are adding a first deadbolt to a door that only has a knob latch, replacing a worn or sticky one, or upgrading after a move, the work is done on site. We are available around the clock, which helps when a door was damaged in a break-in attempt and you need it secured tonight rather than next week.

How it works in Whittier

  1. 1

    Talk through the door and the goal

    Call (323) 997-8867 and tell us about the door: material, whether it already has a deadbolt, and what you want to change. We ask about how many people need keys and whether you want keyed-alike hardware with other locks.

  2. 2

    Inspect the door, edge and frame

    On site we check door thickness, the condition of the edge, the strike plate area and the jamb. A strong bolt in a split or weak frame gains you little, so we point out anything that needs reinforcing before we start.

  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 matters for emergency exit. We explain the tradeoffs and let you decide, keeping in mind local fire and safety considerations.

  4. 4

    Install and align

    We bore or adapt the existing holes where possible, set the bolt, and fit a properly anchored strike plate. On older wood doors we work carefully to avoid unnecessary damage to original finishes and trim.

  5. 5

    Test, key and walk through

    We cycle the bolt several times with the door open and closed, confirm it throws fully into the frame, and hand over keys. If you want other locks rekeyed to match, we can do that during the same visit.

Need deadbolt installation in Whittier?

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 new installs may require boring holes in the door.
  • Single-cylinder versus double-cylinder hardware, and the grade and brand of the bolt you choose.
  • Door material and condition, such as solid wood, hollow-core, metal, or an older door with original finish to protect.
  • Frame and strike reinforcement needs, including longer screws, a reinforced plate, or repair of a worn jamb.
  • The number of doors being done and whether you want them keyed alike or rekeyed to existing keys.
  • Time of day and the location of the property, since we are available 24/7 and travel to you.

Why Whittier chooses us

  • Fully mobile service: the work happens at your door, with no trip to a shop and no storefront to visit.
  • In business since 1987, so older Whittier hardware and door types are familiar territory rather than a surprise.
  • Owner-led by David Shar, who stands behind the work instead of passing it through layers.
  • We assess the frame and strike before selling hardware, because a deadbolt is only as strong as what it bolts into.
  • We take care with period doors, working to preserve original wood and trim where we can.
  • Available 24/7, including for urgent securing after a break-in attempt or lock failure.

Deadbolt Installation across Whittier

Whittier's housing varies a lot from one neighborhood to the next, and that shapes what a good deadbolt installation looks like. Around Uptown Whittier and the Whittier College district, many homes are 1920s Craftsman bungalows and Spanish Colonial houses, some still carrying original mortise locks or skeleton-key interior doors. There the job is often about adding a deadbolt without wrecking the look of an old door, or deciding whether a failing original lock should be repaired or discreetly supplemented. Homes in the 90601 and 90602 areas often fall into this category.

East Whittier is largely mid-century tract housing, where entry doors are frequently standard-thickness slab doors with a basic knob latch and a builder-grade deadbolt that has seen decades of use. Replacing a worn bolt and strengthening the strike plate is a common, practical upgrade in 90605 and the surrounding blocks. Friendly Hills and the homes along Turnbull Canyon tend to be larger, sometimes gated, and owners there often combine deadbolt work with a full rekey after buying a house.

We travel throughout the city, whether you are near Whittier Blvd (SR-72), Beverly Blvd, Painter Ave or Colima Rd, or closer to Rose Hills Memorial Park or Pio Pico State Historic Park. Call (323) 997-8867 any time and we will talk through what your door needs.

Locked out or need a locksmith now?

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Other Whittier locksmith services

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

Deadbolt Installation in Whittier — FAQs

Can you install a deadbolt on an old Craftsman door in Uptown Whittier?
Yes, in most cases. We look at the door's thickness, finish and existing hardware first, then choose a bolt and placement that protect the wood and keep the look intact. Call (323) 997-8867 to describe your door.
What is the difference between single- and double-cylinder deadbolts?
A single-cylinder bolt uses a key outside and a thumbturn inside. A double-cylinder needs a key on both sides. Double-cylinder is sometimes used near glass, but it can slow exit in an emergency, so we talk through the tradeoffs with you.
Do you offer deadbolt installation at night or on weekends?
Yes. Crenshaw Lock Company is available 24/7 and fully mobile, so we can come out after hours, including to secure a door after a break-in attempt. Call (323) 997-8867.
Will a new deadbolt work if my door frame is weak?
Not as well as it should. A deadbolt relies on the strike plate and jamb. If the frame is cracked or the screws are short, we can reinforce the strike area so the new bolt actually adds security.
Can you match the new deadbolt to my existing keys?
Often yes, depending on the brand of your current locks. We can also rekey other locks so one key works throughout. Ask when you call (323) 997-8867 so we can plan hardware for your situation.
Do you have a shop I can visit to pick a deadbolt?
No. We are mobile only. We bring options to your door and help you choose hardware that suits the door, the house and how you use it.
I just bought a home in Friendly Hills. Should I replace the deadbolts?
It is a sensible step, since you cannot know who holds old keys. Depending on the lock condition, a rekey may be enough, or replacing worn deadbolts may make more sense. We can assess both on one visit.
How do I know what the installation will cost?
Cost depends on the hardware grade, whether it is a new install or a replacement, door condition and any frame reinforcement needed. We talk through those factors up front; call (323) 997-8867 to discuss your door.
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