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(323) 997-8867
Crenshaw Lock

Lock Replacement in Altadena · 24/7 mobile

Lock Replacement in Altadena, California

Crenshaw Lock Company provides mobile lock replacement in Altadena, California, 24/7. We come to your home, rebuild site or rental and swap worn, damaged, soot-fouled or outdated locks for new hardware keyed to your needs. Call (323) 997-8867 to talk through your door and your options.

  • Mobile to your Altadena location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
New matte black lock set beside an old worn brass lock
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Lock replacement in Altadena is not one single kind of job right now. Some homeowners need a worn knob on a 1920s Craftsman swapped for a modern deadbolt. Others are dealing with something the Eaton Fire left behind: cylinders that will not turn after months of ash and smoke exposure, or a brand-new rebuild that needs every door fitted with fresh hardware before the crew and the family can move in.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead tech David Shar built the business around being fully mobile. There is no storefront to drive to. We bring the work to your door, day or night, which matters when your property is a hillside lot, a jobsite, or a house you cannot easily leave unsecured.

Replacement is different from rekeying, and a good tech will tell you which one you actually need. If the hardware is sound and only the keys are the concern, rekeying may be enough. If the lock is damaged, corroded, seized, undersized for the door, or simply not what you want protecting your home, replacing it is the right call. We will look at the door first and give you an honest recommendation.

How it works in Altadena

  1. 1

    Tell us about the doors and the situation

    When you call (323) 997-8867, we ask how many locks are involved, what kind of doors they are on, and what is going on: a failed deadbolt, a purchase, a rebuild, or fire-affected hardware. That lets us bring the right stock to your property.

  2. 2

    Inspect the existing hardware and door prep

    On site, we check each lock, the strike plate, the bore holes and the door edge. Older Altadena doors, especially original wood doors in Janes Village bungalows, may have been drilled or repaired over the decades, and we match new hardware to what the door can properly accept.

  3. 3

    Choose hardware that fits your use

    We talk through deadbolts, handlesets, knobs, levers and smart-lock-ready options, along with finishes that suit the style of the home. For rebuilds, we can discuss keying every lock alike or setting up a simple master-key arrangement for different people.

  4. 4

    Remove the old lock and install the new one

    We take out the worn or damaged lock, make sure the door and frame are ready, and install the new hardware so it turns smoothly and the bolt fully engages. Where a seized cylinder is involved, we work carefully to avoid further damage to the door.

  5. 5

    Key, test and hand over

    We cut and test keys, confirm each lock operates from both sides, and check that doors latch and lock without forcing. You get a clear explanation of what was installed and which keys go with which lock.

Need lock replacement in Altadena?

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

Call (323) 997-8867

What affects the price

  • How many locks are being replaced, and whether they are on exterior doors, gates, side-yard entries or interior rooms.
  • The grade and type of hardware you choose, from basic deadbolts to higher-security cylinders, handlesets or electronic options.
  • Whether the existing door needs adjustment, such as enlarging a bore, repairing an edge or realigning a strike, which is common on older wood doors.
  • Keying requirements, including keying all locks alike, adding extra keys, or building a master-key system for a rebuild or multiple occupants.
  • The condition of the existing lock: a seized or soot-fouled cylinder takes more careful removal than a lock that simply turns freely.
  • Timing and access, including after-hours calls and how difficult the property is to reach on a hillside lot.

Why Altadena chooses us

  • Fully mobile: we work at your door, so there is no shop visit and no leaving a property unsecured while you shop for hardware.
  • In business since 1987, with owner and lead tech David Shar leading the work rather than handing it off to an unknown crew.
  • Available 24/7, which helps when a lock fails, a break-in damages a door, or a contractor needs a site secured on short notice.
  • Familiarity with Altadena's mix of older Craftsman and Spanish Colonial doors and brand-new rebuild construction, so we match the hardware to the door.
  • Honest recommendations: if rekeying or a cleaning will solve your problem, we will say so instead of selling you new locks.
  • Experience with contractor needs such as lockboxes, jobsite security and simple master-key systems for rebuilds.

Lock Replacement across Altadena

Altadena's housing tells a story in its doors. In Janes Village, many bungalows from the early to mid twentieth century still have their original door openings and wood doors, which deserve careful hardware choices rather than a one-size-fits-all swap. Near Christmas Tree Lane along Santa Rosa Avenue, and around the Altadena Country Club and The Meadows, larger lots often mean more than a front door: side gates, garage entries and back doors that all need to be considered when replacing locks.

Since the January 2025 Eaton Fire, a lot of our relevant work here falls into three groups. Rebuilding families and contractors need all-new locksets, sometimes keyed alike or under a simple master-key system, along with lockboxes to control access during construction. Owners of surviving homes sometimes find deadbolts and cylinders seized by heat, soot and months of ash. And buyers taking over a hillside property want everything on a fresh key from day one.

We travel to properties across 91001 and 91003, using routes such as Lake Ave, Lincoln Ave, Fair Oaks Ave, Altadena Dr and Woodbury Rd, whether you are near Charles White Park, Farnsworth Park, or up toward the Cobb Estate and Sam Merrill Trailhead. Call (323) 997-8867 and we will come to you.

Locked out or need a locksmith now?

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

Call (323) 997-8867

Other Altadena locksmith services

See all of our Altadena services, or our citywide lock replacement page.

Lock Replacement in Altadena — FAQs

What is the difference between lock replacement and rekeying?
Rekeying changes the internal pins so old keys no longer work, while keeping the same lock. Replacement installs new hardware. If your lock is worn, damaged, seized or you want a different style or security level, replacement makes sense. Call (323) 997-8867 and we can help you decide.
My deadbolt seized after the Eaton Fire. Can it be saved?
Sometimes. Soot and ash can foul a cylinder, and we can often free and rekey it. If the lock is corroded or damaged beyond reliable use, we will recommend replacing it and explain why before we do the work.
Can you supply and key all the locks on a rebuild?
Yes. We can supply new locksets, key them alike or set up a simple master-key system, and discuss lockboxes for contractor access. Describe your project when you call (323) 997-8867 so we bring the right hardware.
Do you work on older Craftsman and Spanish Colonial doors?
Yes. Older doors in areas like Janes Village may have unusual bores, thicker edges or past repairs. We inspect the door first and choose hardware that fits properly instead of forcing a modern lock into it.
Can you replace gate and side-yard locks too?
Yes, we can address gate latches, side-yard locks and outbuilding entries along with the main doors, which is common on the larger lots near the Country Club and Christmas Tree Lane.
Do I need to be home during the replacement?
We need access to the doors and someone authorized to approve the work. For contractors and rebuilds, we can discuss arrangements for jobsite access in advance.
Are you available at night or on weekends?
Yes. We are available 24/7 and fully mobile, so you can reach us at any hour on (323) 997-8867.
Do you have a shop I can visit in Altadena?
No. Crenshaw Lock Company is mobile only. We come to your home, jobsite or rental in 91001 or 91003, so you never have to leave the property to get new locks.
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