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Crenshaw Lock

Residential Locksmith in San Marino · 24/7 mobile

Residential Locksmith in San Marino, California

Crenshaw Lock Company provides residential locksmith service in San Marino, California, 24/7, fully mobile. We rekey, repair, replace and upgrade locks on period-revival estates and everyday homes alike. Call (323) 997-8867 and we will come to your door, wherever in the city you are.

  • Mobile to your San Marino location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Deadbolt and lever handle on a wooden front door
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San Marino is not a typical locksmith market. The city is almost entirely residential, and much of it is made up of large Spanish Colonial, Tudor and Georgian homes from the 1920s and 1930s, set on generous lots. Those houses were built with real hardware: solid-wood doors, heavy mortise lock bodies, and brass that has developed decades of patina. Good residential locksmith work here starts with respecting what is already on the door.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar has spent those years working on exactly this kind of mix: older hardware that deserves to be preserved, and modern security that homeowners want added without spoiling the look of the entry. We are fully mobile and available around the clock, so there is no shop to drive to. We bring the tools and the expertise to your property.

Whether you have lost a key, changed household staff, bought a home and want to know who else holds a key, or want a more capable deadbolt and a discreet smart lock, we start by listening to what you actually need. Then we recommend the most sensible fix, which is often a rekey or a repair rather than a full replacement, and we explain the reasoning before any work begins.

How it works in San Marino

  1. 1

    Call and describe the situation

    Reach us any hour at (323) 997-8867. Tell us what happened: a lost key, a change in who has access, a sticking mortise lock, or a planned upgrade. We will ask about the doors involved and the type of hardware so the right tools and parts come with us.

  2. 2

    On-site assessment of your hardware

    We come to your home and look at each lock in question. On a 1920s or 1930s house that often means identifying the mortise body, checking the condition of the brass trim, and judging whether the lock can be serviced and rekeyed rather than replaced.

  3. 3

    A clear recommendation before work starts

    We lay out the options in plain terms: rekey, repair, replace, or upgrade. If preserving original hardware matters to you, we say so up front and shape the plan around it, including adding a high-security cylinder where it can be done cleanly.

  4. 4

    Rekeying and hands-on work

    For a rekey, we re-pin the cylinders so old keys no longer work. We can bring all exterior doors, side doors and garden gates onto one key so you are not carrying a ring of them. Repairs and installations are done carefully to avoid marking solid-wood doors and trim.

  5. 5

    Testing and handoff

    Every lock is tested from both sides, with the door open and closed, before we leave. We hand over the new keys, go over how any new deadbolt, safe lock or smart lock operates, and note anything worth watching down the road.

Need residential locksmith in San Marino?

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

Call (323) 997-8867

What affects the price

  • The number of locks and doors involved, including side doors, service entries, garden gates and outbuildings common on large San Marino lots.
  • Whether the work is a rekey, a repair of existing hardware, or a full replacement, since rekeying original hardware generally involves different labor and parts than new installation.
  • The type of hardware: original mortise lock bodies, high-security cylinders, residential safe deadbolts and smart locks each carry different part and labor needs.
  • Whether the hardware needs careful preservation work, such as protecting aged brass or fitting new cylinders into vintage trim without visible changes.
  • The time of the call, since we answer 24/7 and after-hours or emergency visits are scoped differently than a scheduled appointment.
  • Whether any key cutting, special keyways or restricted key systems are requested for tighter control over who can copy your keys.

Why San Marino chooses us

  • Fully mobile service. There is no storefront to visit; we come to your property, day or night.
  • In business since 1987, with David Shar leading the work, which means long familiarity with older mortise hardware and period homes.
  • A preservation-first mindset: we try to service and keep original brass hardware when it makes sense and add security quietly behind it.
  • Whole-property rekeying, including exterior doors and gates, so one key can serve the entire house.
  • Practical advice on high-security cylinders, safe deadbolts and discreet smart-lock options without pushing products you do not need.
  • Honest recommendations. If a rekey solves the problem, we will not suggest replacing good hardware.

Residential Locksmith across San Marino

San Marino's housing stock shapes nearly every call we handle. Around the Huntington Library district, many homes are 1920s and 1930s period-revival estates with their original mortise hardware still in place. A typical visit might involve servicing those old lock bodies, keeping the vintage brass, and fitting a high-security cylinder so the door looks unchanged but is far harder to compromise.

In the Lacy Park neighborhood, larger properties often have several entrances, staff access and garden gates. After a staff change or a lost key, the most useful response is usually a whole-house rekey, sometimes paired with a residential safe deadbolt upgrade, so every door and gate runs on a single new key. Along Huntington Drive and the Mission District, homes sit close to the modest commercial stretch, and owners there often ask about added deadbolts and smart locks that blend in.

We serve all of ZIP code 91108, from properties near Huntington Drive and Sierra Madre Blvd to those off San Gabriel Blvd, Del Mar Ave and Los Robles Ave, and near landmarks like Lacy Park, El Molino Viejo and the Crowell Public Library. Because we are mobile and open 24/7, call (323) 997-8867 whenever you need us.

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 San Marino locksmith services

See all of our San Marino services, or our citywide residential locksmith page.

Residential Locksmith in San Marino — FAQs

Can you rekey the original mortise locks on my older San Marino home?
In many cases, yes. Mortise lock bodies from the 1920s and 1930s can often be serviced and rekeyed, which keeps the original brass in place. We inspect the hardware first and tell you honestly whether it is a good candidate. Call (323) 997-8867 to describe what you have.
Can you add better security without changing how my historic door looks?
Often we can. Fitting a high-security cylinder into existing hardware, or adding a discreet deadbolt, can strengthen the door while the visible trim stays the same. We review options on site so the result suits both the home and your preservation goals.
We changed household staff. Should we rekey?
Rekeying is the standard answer. It re-pins the locks so previously issued keys stop working, without replacing the hardware. We can do all exterior doors and gates and bring them to one key. Call (323) 997-8867 any time.
Can the side doors and garden gates be keyed to match the main door?
Yes, as long as the locks are compatible or can be swapped for ones that are. We commonly re-pin everything on a property to a single key so you are not managing a large ring.
Do you install residential safes or safe deadbolts?
We handle residential safe deadbolt upgrades and can advise on high-security options for entry doors. We will talk through how you use the house and which doors matter most before suggesting anything.
Do you offer smart locks for San Marino homes?
Yes. Many owners here prefer discreet smart-lock systems that do not change the look of the entry. We can discuss compatibility with your door and hardware, and show you how to use it before we leave.
Are you available at night or on weekends?
Yes. We are 24/7 and fully mobile, so lockouts, lost keys and urgent security concerns can be handled at any hour. Call (323) 997-8867 to reach us.
Is there a shop I can visit?
No. Crenshaw Lock Company is mobile only. We come to your San Marino home with what is needed to do the work on site.
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