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Crenshaw Lock

High Security Locks in South Gate · 24/7 mobile

High Security Locks in South Gate, California

Crenshaw Lock Company installs pick-, bump- and drill-resistant high security locks and restricted keys for homes and businesses in South Gate, California. We are fully mobile and available 24/7, and we come to you. For an assessment of your doors, call (323) 997-8867.

  • Mobile to your South Gate location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
High-security lock cylinder with a dimple key
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A standard builder-grade deadbolt is built to a price, not to resist a determined attempt. High security locks are different. They use tighter tolerances, hardened inserts, more complex pin or sidebar systems, and keys that are harder to copy. In South Gate, where homes range from 1920s bungalows to post-war stucco tracts and where commercial doors line Tweedy Boulevard and Firestone Boulevard, the right upgrade depends heavily on the door in front of us.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar has seen how often a good lock gets undermined by a weak strike plate, a thin door edge, or an unrestricted key that anyone can duplicate at a hardware counter. We look at the whole opening, not just the cylinder, and recommend only what makes sense for the property and the risk.

We are a mobile-only business. There is no storefront to visit. We bring the hardware, tools and key-cutting capability to your door, whether that is a Hollydale home, a Tweedy Mile shop, or a rental unit near South Gate Park, and we explain your options before any work begins.

How it works in South Gate

  1. 1

    Talk through the problem

    Call (323) 997-8867 and tell us what you are protecting and why. Maybe a tenant left with keys, a shop changed hands, or you simply want better protection on the front door. We will explain what to expect and when we can come out, any hour of any day.

  2. 2

    On-site door and hardware assessment

    We inspect the lock, the door thickness and material, the frame, the strike plate and the hinges. Older doors in South Gate homes often have worn bores, painted-over strikes, or soft wood around the latch, and we point these out because a high security cylinder is only as good as what it is mounted in.

  3. 3

    Choose the right security level

    We walk you through options for pick, bump and drill resistance, and whether a restricted keyway makes sense. Restricted keys mean copies can only be made with authorization, which matters for landlords, shop owners and anyone managing multiple keyholders.

  4. 4

    Installation and reinforcement

    We install the new lock, and where needed fit a reinforced strike plate, longer screws into the framing, or a door edge reinforcer. We adjust the latch so the bolt throws smoothly and fully, since poor alignment is a common cause of lock failure.

  5. 5

    Key setup and testing

    We cut and test your keys, check every lock on the job for smooth operation, and set up additional keys or keying-alike if you want one key for several doors. We explain how to order authorized copies later.

  6. 6

    Walk-through and care tips

    Before we leave, we show you how everything works and give simple maintenance advice. You will know what was installed and what it protects against.

Need high security locks in South Gate?

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

Call (323) 997-8867

What affects the price

  • The grade and brand of lock chosen, since higher-rated cylinders with hardened components and restricted keyways cost more than basic upgrades.
  • The number of doors, gates and padlocks included, and whether you want them keyed alike or on a master key system.
  • Condition of the door and frame, including whether reinforcement such as strike plates, edge guards or bore repair is needed on older doors.
  • Type of opening, such as a residential entry, a storefront door, a roll-down grille padlock, or an industrial gate, each of which needs different hardware.
  • Number of keys required and whether key control or authorization cards are part of the setup.
  • Time of day and urgency, since after-hours and same-day requests involve different scheduling than planned work.

Why South Gate chooses us

  • Fully mobile service: we come to your South Gate home or business with hardware on hand, rather than sending you to a shop.
  • Serving Greater Los Angeles and Ventura County since 1987, with owner David Shar leading the work.
  • We assess the door and frame, not just the lock, so you are not paying for premium hardware installed in a weak opening.
  • Honest recommendations: if a good mid-grade lock with a reinforced strike meets your needs, we will say so rather than push the most expensive option.
  • Experience with older residential hardware, including aging mortise sets and worn deadbolt bores common in pre-1960 homes.
  • Available 24/7, so a sudden need after a break-in attempt or a tenant move-out does not have to wait for business hours.

High Security Locks across South Gate

South Gate's housing mix shapes what we recommend. In Hollydale and other neighborhoods of 1940s and 1950s single-family homes, front doors often carry decades-old deadbolts in worn bores, with short strike screws that barely reach the framing. A high security deadbolt paired with a reinforced strike makes a real difference there, and we can also address side gates and garage entry doors, which are often the weakest point of a property.

Along the Tweedy Mile business district on Tweedy Boulevard and the Firestone Boulevard corridor, shops face different issues: storefront doors, roll-down grilles and back-alley entries. When a business changes owners, a full rekey with restricted keys is one of the most practical ways to make sure former employees or previous owners no longer have working access. Near Azalea Regional Shopping Center and the industrial blocks toward the LA River, we also handle padlock and master-key needs for commercial properties.

Landlords with rentals around South Gate Park and throughout ZIP code 90280 often ask about restricted keys after tenant turnover, since it stops unauthorized duplication. Whether you are close to Atlantic Avenue, Garfield Avenue, Imperial Highway or the I-710, we travel to you. Call (323) 997-8867 to talk through your property.

Locked out or need a locksmith now?

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

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Other South Gate locksmith services

See all of our South Gate services, or our citywide high security locks page.

High Security Locks in South Gate — FAQs

What makes a lock "high security"?
High security locks resist common attack methods such as picking, bumping and drilling, using features like hardened inserts, tighter tolerances and more complex internal mechanisms. Many also use restricted keys that are hard to duplicate without authorization.
Will a high security lock fit my older South Gate home?
Usually yes, but we check the door and bore first. Many 1940s and 1950s doors can take a modern high security deadbolt, sometimes with a bore adjustment or reinforcement. Call (323) 997-8867 and we can assess it on site.
Do you work on Tweedy Mile storefronts and roll-down grilles?
Yes. We handle storefront door locks, full rekeys after an ownership change and padlocks for roll-down grilles. We can set everything on a restricted key system so copies stay controlled.
What is a restricted keyway and do I need one?
A restricted keyway means blank keys are not sold openly, so copies require authorization. It is helpful for landlords, businesses and households that want to control who can duplicate keys. We will tell you whether it fits your situation.
Can you key several doors or locks alike?
Yes. We can set a house, a shop and gates to work with one key, or build a master key arrangement for a multi-unit or commercial property, depending on the hardware selected.
Is the door itself part of the security picture?
Absolutely. A strong cylinder in a weak frame can still fail. We look at the strike plate, screws, hinges and door edge, and recommend reinforcement where it will actually help.
Do you offer service at night or on weekends?
Yes, we are available 24/7 and fully mobile. If you need an urgent upgrade after a break-in attempt, call (323) 997-8867.
Do you have a shop I can visit?
No. We are a mobile-only business, so we come to your home, rental or business in South Gate with the hardware and tools needed.
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