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Crenshaw Lock

Deadbolt Installation in Alhambra · 24/7 mobile

Deadbolt Installation in Alhambra, California

Crenshaw Lock Company provides mobile deadbolt installation in Alhambra, California, available 24/7. We add or replace single- and double-cylinder deadbolts at your home, apartment, or Main Street shop, coming to you with the hardware. Call us anytime at (323) 997-8867 to talk through your door.

  • Mobile to your Alhambra location
  • Available 24/7
  • Price quoted before we start
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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, but only if it is fitted properly. In Alhambra, doors vary widely. One street has a 1920s Craftsman bungalow with a solid wood front door, and the next block has a mid-century courtyard apartment with a thinner hollow-core entry. A good installation starts with reading the door in front of us rather than forcing one standard answer onto it.

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 fully mobile. There is no storefront to visit, so everything happens at your door: we assess it, bring the hardware, install it, and test it with you before we leave.

Whether you are adding a first deadbolt to a door that only has a knob latch, replacing a worn or sticky one, or moving to a double-cylinder model where the door has glass nearby, this page explains how we work, what affects the cost, and what is specific to installing deadbolts in Alhambra's older homes, apartments, and storefronts.

How it works in Alhambra

  1. 1

    Talk through the door and the goal

    When you call (323) 997-8867, we ask what the door is made of, whether it already has a deadbolt, and what is prompting the change: a recent break-in, a new tenant, a move, or simply wanting better security. That helps us bring suitable hardware to the visit.

  2. 2

    Inspect the door, frame, and strike area

    On site we check the thickness and condition of the door, the existing bore holes, and the frame. Older wood doors in Alhambra bungalows may have dry, split, or previously repaired areas near the edge. Aluminum storefront doors need a completely different approach than wood.

  3. 3

    Choose single or double cylinder

    A single-cylinder deadbolt uses a key outside and a thumbturn inside, which suits most entry doors. A double-cylinder needs a key on both sides and can make sense where a pane of glass is within reach of the lock. We explain the tradeoff, including that keyed-inside locks can slow exit in an emergency, so you decide with full information.

  4. 4

    Install and align the hardware

    We drill or reuse bores as the door allows, set the latch and strike, and make sure the bolt throws fully into the frame. Where it helps, we recommend a reinforced strike plate with longer screws that reach the framing, since a deadbolt is only as strong as what it bolts into.

  5. 5

    Test, key, and hand over

    We operate the lock repeatedly with the door open and closed, check that the bolt moves smoothly without forcing, and hand over your keys. If you want the new deadbolt keyed to match your other locks, ask us during the visit.

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What affects the price

  • Whether you need a new deadbolt on a door with no existing bore or a replacement that can use the holes already there.
  • The grade and brand of the deadbolt you choose, from standard residential models to heavier-duty options.
  • Single-cylinder versus double-cylinder, and whether you want the new lock keyed to match existing locks.
  • Door material and condition: solid wood, hollow-core, metal, or aluminum storefront each call for different work, and damaged doors may need repair first.
  • Reinforcement such as a heavy-duty strike plate, longer screws, or frame work.
  • The number of doors being done, and whether the visit is during regular hours or a late-night or emergency call.

Why Alhambra chooses us

  • Fully mobile and available 24/7, so a deadbolt can be installed at your door when the need is urgent, not just during store hours.
  • In business since 1987, with owner and lead technician David Shar behind the work.
  • Familiarity with Alhambra's mix of historic bungalows, mid-century apartments, and aluminum storefronts, so we match the hardware to the door instead of defaulting to one product.
  • We explain single versus double cylinder honestly, including safety considerations, rather than steering you to the more expensive option.
  • We pay attention to the strike plate and frame, not just the lock, because that is where many deadbolts fail.
  • No storefront and no pressure: we assess the door at your location and tell you what it needs.

Deadbolt Installation across Alhambra

Alhambra has long been called the City of Homes, and its housing shows it. In Bean Tract and Midwick Tract, many 1910s to 1930s Craftsman and Spanish or Mediterranean Revival bungalows still carry original mortise locks and period doorsets on wood-frame doors. The city has designated 26 single-family areas as historic neighborhoods, including those two tracts, so owners often want added security that does not butcher a handsome old door. We take care with bore sizes and finish choices, and we will tell you when an existing mortise lock is better repaired or rekeyed than drilled around.

Other parts of town call for other solutions. Around Emery Park and Airport Tract, you will find a mix of single-family homes and larger multifamily buildings, including mid-century apartment and courtyard properties where landlords often add or replace deadbolts between tenancies. In Downtown Alhambra along Main Street, and out along Valley Blvd, mixed-use buildings and aluminum storefronts need hardware designed for narrow-stile glass doors rather than a standard residential bore. Shops near the Garfield Theatre and the dining corridor often need a reliable lock set up before opening.

We work throughout ZIP codes 91801 and 91803, from homes near Almansor Park to businesses along Fremont Ave, Atlantic Blvd, and the I-10 corridor. Call (323) 997-8867 any hour and we will come to you.

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Other Alhambra locksmith services

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

Deadbolt Installation in Alhambra — FAQs

Can you install a deadbolt on an old wood door in Bean Tract or Midwick Tract?
Often yes. Many older solid wood doors take a deadbolt well, but we check the thickness, existing mortise lock, and condition of the wood first. If a bore would weaken the door, we will say so and discuss alternatives. Call (323) 997-8867 to describe your door.
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 to your Alhambra address when you need a deadbolt installed after a break-in or lockout, not only during business hours.
What is the difference between single- and double-cylinder deadbolts?
A single-cylinder uses a key outside and a thumbturn inside. A double-cylinder needs a key on both sides, which can help when glass is near the lock but can slow your exit in an emergency. We will help you weigh which fits your door.
Can a deadbolt be installed on an aluminum storefront door on Main Street?
Yes, but storefront doors have narrow stiles and need hardware made for them rather than a standard residential deadbolt. We assess the door on site and recommend appropriate options for your shop.
Will you install deadbolts for several apartment units at once?
Yes. Landlords and property managers in Alhambra often add or replace deadbolts across units between tenancies. We can also key them to match or rekey as needed. Call (323) 997-8867 to discuss the number of doors.
Do I need a new deadbolt or just a rekey?
If your existing deadbolt is solid and works smoothly, a rekey may be all you need after losing a key or changing tenants. If it is worn, loose, or low quality, replacement makes more sense. We will tell you which applies.
Does a deadbolt make my door more secure on its own?
It helps a lot, but only if the strike plate and frame are strong. We commonly recommend a reinforced strike plate with long screws so the bolt is anchored into the framing rather than just the trim.
Do you have a shop I can visit?
No. We are fully mobile and come to you anywhere in Alhambra, including ZIP codes 91801 and 91803. Call (323) 997-8867 and we will arrange the visit.
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