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Crenshaw Lock

Deadbolt Installation in South Gate · 24/7 mobile

Deadbolt Installation in South Gate, California

Crenshaw Lock Company installs and replaces single- and double-cylinder deadbolts in South Gate, California, 24/7. Our fully mobile service comes to your home, apartment or shop and sets up the new lock on site. Call (323) 997-8867 to talk through your door and get started.

  • Mobile to your South Gate 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 ways to make a door harder to force, but only if it is the right lock, fitted correctly to a sound door. In South Gate, where so many homes date from the 1920s through the 1950s, we regularly find worn-out cylinders, loose strike plates, bored holes that were never quite square, and doors that have been repainted so many times the bolt barely reaches its receiver. Installing a new deadbolt is often a matter of correcting those details, not just swapping hardware.

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 bring the tools and a range of deadbolt hardware to your door at any hour, whether you are adding a first deadbolt to a bungalow, replacing one that has started to stick, or securing a shop door after a change in ownership.

This page explains how an installation works, what influences the cost, and what is specific to South Gate doors. If you would rather talk it through, call (323) 997-8867 and describe your door. We will help you decide between a single-cylinder and a double-cylinder lock before anyone drives out.

How it works in South Gate

  1. 1

    Talk through the door and the goal

    We start by asking what you want: a first deadbolt, a replacement for a failing one, or a stronger lock after a break-in or tenant change. We ask about the door material, whether it is a solid wood, hollow, metal or glass-paneled door, and whether any lock is already installed.

  2. 2

    Inspect the door, frame and strike

    On site, we check that the door is thick enough, the existing bore holes are the right size, and the frame is solid where the bolt lands. Older stucco-era homes often have soft or split jambs, and a deadbolt is only as strong as the wood around it.

  3. 3

    Choose single or double cylinder

    A single-cylinder deadbolt turns with a key outside and a thumbturn inside. A double-cylinder needs a key on both sides, which can make sense next to glass but can slow your exit in an emergency. We explain the tradeoffs honestly and let you decide.

  4. 4

    Install and align the hardware

    We fit the lock, bolt and strike plate, drilling or adjusting the door only where needed. We use a reinforced strike with proper-length screws that reach into the framing, so the bolt engages cleanly and resists kicking.

  5. 5

    Test, key up and hand over

    We cycle the bolt many times with the door open and closed, check that it throws fully, and confirm all keys work. If you want several locks on the property to share one key, we can discuss keying them alike.

Need deadbolt installation in South Gate?

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What affects the price

  • Whether you are adding a new deadbolt or replacing an existing one, since a new install may need boring and a replacement often does not.
  • The door material and condition, because solid wood, metal and older repainted doors each call for different handling.
  • The grade and style of the deadbolt you choose, including single or double cylinder and finish.
  • Whether the frame or strike area needs reinforcement, such as a heavier strike plate or longer screws into the stud.
  • The number of doors being done and whether you want them keyed alike.
  • Timing and location, since after-hours visits and trips across the area can affect the overall cost.

Why South Gate chooses us

  • Fully mobile, 24/7 service, so the work is done at your door rather than you bringing the door to a shop.
  • Operating since 1987 under owner and lead tech David Shar, with long experience on older Southern California homes.
  • We check the door and frame first, rather than just selling a lock that the old woodwork cannot support.
  • We explain single versus double cylinder plainly, including the emergency-exit tradeoff, instead of pushing the pricier option.
  • One company can handle the deadbolt, a rekey, and related locks like garage and side-gate hardware in the same visit.

Deadbolt Installation across South Gate

South Gate's housing stock shapes most of the deadbolt work we see. In Hollydale, many 1940s single-family homes and post-war stucco bungalows still carry their original door hardware, and cylinders that have worn for decades can seize or fail. A homeowner there might call after a deadbolt stops turning, and the right fix is a fresh, properly aligned lock rather than another patch. The same goes for streets near Hollydale Park, where front doors have often been repainted and re-hung over the years.

Along the Firestone Boulevard corridor and the Tweedy Mile business district on Tweedy Boulevard, we also help small businesses and landlords. A storefront changing hands may want a stronger deadbolt on a back or side door alongside a rekey. Property owners near South Gate Park often ask about deadbolts after tenant turnover, sometimes with garage and side-gate locks added. In ZIP code 90280, we can usually combine these jobs in one visit.

Whether you are off Atlantic Avenue or Garfield Avenue, close to Imperial Highway, or near the I-710, we come to you. Call (323) 997-8867 any time of day or night, and we will talk through your door before we arrive.

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Other South Gate locksmith services

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

Deadbolt Installation in South Gate — FAQs

Can you install a deadbolt on a door that doesn't have one?
Yes, in most cases. We check that the door is thick enough and solid enough, then bore the holes and fit the lock and strike. Call (323) 997-8867 and describe your door and we can tell you what to expect.
Should I choose a single-cylinder or double-cylinder deadbolt?
Single-cylinder locks use a thumbturn inside, which makes leaving quickly easier. Double-cylinder locks need a key on both sides and are mostly considered near glass panels. We will explain the safety tradeoffs and help you choose.
My old deadbolt in my Hollydale home sticks. Do I need a new one?
Not always. Sometimes the strike plate is misaligned or the cylinder is worn. We inspect it and tell you whether adjusting or replacing makes sense, and call (323) 997-8867 if you want to talk first.
Do you work at night and on weekends in South Gate?
Yes. We are available 24/7 and fully mobile. We do not promise specific arrival times, but you can call (323) 997-8867 at any hour to arrange service.
Can you reinforce the door frame as well?
Yes. If the jamb is soft or split, we can install a heavier strike plate with longer screws that reach the framing. This often matters on older homes.
Can several doors be keyed to one key?
Often, yes. If you are adding deadbolts to the front, back and a side door, we can discuss keying them alike so you carry fewer keys.
Do you install deadbolts for businesses on Tweedy Boulevard?
Yes. We can add or replace deadbolts on storefront back doors and side entries, and combine that with rekeying when ownership changes.
Do I need to be home during the installation?
Someone should be present so we can confirm the work and hand over the keys. For rental properties, a manager or owner can authorize it. Call to arrange details.
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