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Crenshaw Lock

Lock Installation in Covina · 24/7 mobile

Lock Installation in Covina, California

Crenshaw Lock Company provides mobile lock installation in Covina, California, for new doors and doors that never had a lock. We are available 24/7 and come to your home or business with hardware and tools. Call (323) 997-8867 to talk through your door and get started.

  • Mobile to your Covina location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
New deadbolt being fastened to a white front door
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Installing a lock where none existed is different from swapping an old one. A new door, a converted garage, a freshly built gate or a side entry that was never secured all need the right holes bored, the right latch fitted and the right strike set into the frame. Done carefully, the door closes smoothly and the bolt throws cleanly. Done carelessly, it binds, rattles or leaves the door weaker than before.

Covina is an older, established San Gabriel Valley city, and its doors reflect that. Near historic Downtown Covina you find 1920s and 1930s buildings and Craftsman and Spanish bungalows, where wood doors may be thin, old, or already fitted with mortise or rim hardware. Out in the post-war tract neighborhoods, Charter Oak and Covina Hills, ranch-style homes often have added doors, side gates and detached structures that need their own locks. Each of these calls for a slightly different approach.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987 under owner and lead technician David Shar. We are fully mobile, so there is no storefront to visit. We bring the work to your door, look at what is actually there, and install hardware that fits the door, the frame and how you use the entry.

How it works in Covina

  1. 1

    Tell us about the door

    Call (323) 997-8867 and describe the door: wood, metal or glass, interior or exterior, new or existing. Tell us what you want, such as a keyed deadbolt, a keyed knob, a lever, or a keypad. We will help you think through what suits the entry.

  2. 2

    Inspect the door and frame on site

    When we arrive we check door thickness, material, condition and the frame. A thin or damaged door may need reinforcement, and an older bungalow door may call for a different approach than a modern hollow-core or solid-core slab.

  3. 3

    Mark and bore the door

    We use a template to mark the lock height and backset, then bore the face and edge holes cleanly. Careful alignment matters here, because small errors cause a bolt that drags or a latch that will not catch.

  4. 4

    Fit the latch, strike and hardware

    The latch and bolt are mortised into the edge, the strike plate is set into the frame, and the lock body and trim are mounted. Where the frame is soft or worn, we can recommend a reinforced strike with longer screws so the lock holds up under force.

  5. 5

    Test, key and walk you through it

    We operate the lock repeatedly with the door open and closed, confirm it latches smoothly, and make sure the keys work. We then show you how it operates and can set up multiple locks to share one key if you prefer.

Need lock installation in Covina?

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

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What affects the price

  • The type of lock chosen, such as a basic keyed knob, a deadbolt, a lever set or an electronic keypad, since hardware varies widely in cost and grade.
  • Door material and condition, because solid wood, metal and hollow-core doors each require different boring methods, and a damaged door may need repair first.
  • Whether the frame needs reinforcement, such as a heavier strike plate or longer screws, particularly on older wood frames.
  • How many doors are being done in one visit and whether you want them keyed alike.
  • Special preparation, such as a nonstandard door thickness, a glass or sidelight door, or a gate that needs unusual hardware.
  • Time of day and urgency, since after-hours or same-day calls are handled differently from scheduled work.

Why Covina chooses us

  • Fully mobile service. We come to your Covina address with hardware and tools, so you do not need to bring a door anywhere.
  • In business since 1987, which means long experience with the older doors and frames common in historic and post-war neighborhoods.
  • Honest recommendations. If a door is too thin or damaged to hold a good lock, we will tell you rather than install hardware that will not last.
  • Clean workmanship. We bore with templates and test the fit so the door closes and locks smoothly.
  • Available 24/7, so a new entry can be secured the same day it is hung or the moment you realize it was never locked.
  • One technician-led approach under owner David Shar, so you get clear explanations instead of a sales pitch.

Lock Installation across Covina

Covina's mix of buildings creates a wide range of installation jobs. In Downtown Covina, around Citrus Ave and near the Covina Center for the Performing Arts and Heritage Plaza, small retail spaces and older commercial buildings sometimes add a rear or storage door that needs its own lock, while bungalows nearby often gain a new side entry or converted-room door. In ZIP code 91723, these older wood doors and frames deserve a careful look before any holes are cut.

In Charter Oak (91724) and the Covina Hills area to the south, ranch-style homes and larger lots tend to bring extra doors: garage side entries, workshop doors, pool-area gates and casitas. These often go without a lock for years until a family decides it is time to secure them. We can fit keyed deadbolts or keyed-alike sets so one key handles several doors. Homes in 91722 and 91724 also see new construction and remodels where fresh doors arrive with no hardware at all.

Whether you live near the Covina Metrolink station, just off Azusa Ave, Grand Ave or Badillo St, or closer to Arrow Hwy and the I-10 corridor, we travel to you. Call (323) 997-8867 any hour and we will talk through the door and the options.

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Other Covina locksmith services

See all of our Covina services, or our citywide lock installation page.

Lock Installation in Covina — FAQs

Can you install a lock on a door that never had one?
Yes. That is the core of this service. We bore the door, mortise the latch, set the strike in the frame and mount the hardware. Call (323) 997-8867 to describe the door.
Do you install locks on older Craftsman and bungalow doors in Covina?
Yes. Older wood doors in historic Downtown Covina can be thin or already have mortise or rim hardware. We inspect the door first and recommend a lock that fits it without weakening the wood.
Do I need to buy the lock first?
No. We can bring suitable hardware to the job. If you already have a lock you like, we can install it, provided it fits the door thickness and preparation.
Can you make several new locks use the same key?
Yes. If you are securing multiple doors, such as a house, garage side door and gate, we can set them up keyed alike so one key works for all.
What if my door frame is old or soft?
We can reinforce the frame with a heavier strike plate and longer screws that reach the framing behind it. A strong lock on a weak frame does not give much protection, so we check this on every job.
Do you install electronic or keypad locks?
We can discuss keypad and electronic options when you call (323) 997-8867. Whether one suits your door depends on the door's thickness, its material and how you want to use it.
Is there a shop I can visit in Covina?
No. We are fully mobile only, with no storefront. We travel to your home or business, including Charter Oak, Covina Hills and downtown, and do the work on site.
Can you come outside normal business hours?
Yes. We are available 24/7. Call (323) 997-8867 if a new door needs securing tonight or on a weekend.
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