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Crenshaw Lock

Lock Replacement in Northridge · 24/7 mobile

Lock Replacement in Northridge, California

Crenshaw Lock Company provides 24/7 mobile lock replacement in Northridge, California. We come to your home, rental, or horse property and swap worn, damaged, or outdated locks for new hardware keyed to your needs. Call (323) 997-8867 any hour to talk through your door.

  • Mobile to your Northridge 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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A lock rarely fails at a convenient moment. The key starts to stick, the deadbolt takes a shoulder to turn, or a tenant moves out and leaves a stack of copies behind. In Northridge, those problems show up in a particular mix: ranch tract homes from the 1950s and 60s with hardware that has been turning for decades, student rentals around CSUN that change hands every year, and equestrian properties where the locks live outdoors with dust, moisture, and animals.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar built the business on one idea: come to the customer, look at the actual door, and fix the actual problem. We are fully mobile. There is no storefront to visit, so everything happens at your property, whether that is a front door off Devonshire Street or a gate on a Sherwood Forest driveway.

Lock replacement is not always the right answer, and we will say so. If a lock only needs a rekey or a small adjustment, we will tell you. When the hardware is worn out, damaged after a break-in attempt, mismatched across a property, or simply no longer trustworthy, replacing it is the cleaner solution, and we handle that around the clock.

How it works in Northridge

  1. 1

    Call and describe the situation

    Phone (323) 997-8867 at any hour. Tell us what the door is, what the lock is doing, and whether this is urgent, such as a lost key or a break-in, or planned, such as a move-in. That helps us bring the right hardware to your Northridge address.

  2. 2

    Inspect the lock, door, and frame

    Once on site, we look at more than the lock itself. We check the bolt alignment, strike plate, latch, and door edge. In older Northridge homes, a frame that has shifted over the years can be the real culprit, and swapping a lock will not fix a bolt that no longer lines up.

  3. 3

    Recommend the right hardware

    We explain your options in plain language: deadbolts, knob and lever sets, smart or keypad models where they suit the door, and weather-tolerant hardware for gates and barns. You pick what fits your security needs and how you use the door.

  4. 4

    Remove the old lock and install the new one

    We take out the old hardware and install the new lock, adjusting the strike plate or bore as needed so the bolt throws smoothly. Where a door has been drilled or damaged, we address that so the new lock sits securely.

  5. 5

    Key it the way you need

    New locks can be keyed to match others on the property or keyed separately. A landlord with multiple units, or an owner with a barn, tack room, and gate, can often have several locks work with one key.

  6. 6

    Test and hand over

    We cycle the lock and key several times, check that the door closes and latches cleanly, and hand you the keys. Any old keys that no longer work are yours to discard with confidence.

Need lock replacement in Northridge?

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

Call (323) 997-8867

What affects the price

  • The type and grade of lock you choose, from a basic deadbolt to a higher-security or electronic model, which is the biggest driver of the final cost.
  • How many locks are being replaced, and whether they are keyed alike, since a single door and a whole apartment block or horse property are very different jobs.
  • The condition of the door and frame, including any realignment, strike plate work, or repair needed so the new lock functions properly.
  • Whether the work is scheduled in advance or requested at night, on a weekend, or on a holiday, since after-hours service differs from daytime appointments.
  • Specialty hardware needs, such as weather-resistant padlocks and gate locks for outdoor use, or restricted keyways for added key control.
  • Your location and access, including gated driveways or large properties that affect travel and setup.

Why Northridge chooses us

  • Fully mobile service: we work at your door, so you never have to carry a failed lock or a damaged door anywhere.
  • Open 24/7, so a break-in aftermath or a lockout on a Sunday night gets the same attention as a planned weekday job.
  • In business since 1987, with owner David Shar leading the work, which means experience with the older hardware found in Northridge tract homes.
  • We diagnose before we sell: if a rekey or frame adjustment will solve the problem, we will tell you rather than replace a lock that does not need it.
  • Comfortable with multi-unit and property-wide jobs, including keying many locks alike for landlords and ranch owners.
  • Clear explanation of options and costs before work begins, with no pressure to upgrade beyond what the door needs.

Lock Replacement across Northridge

Northridge has a housing mix that shapes almost every lock job we do. Around the CSUN and university district, student-rental apartments along and near Reseda Blvd, Zelzah Ave, and Plummer St turn over on an academic calendar. Landlords and property managers often need a block of units rekeyed or fitted with new locks before fall move-in, and we can handle those jobs unit by unit with keying that makes sense for management. Properties in ZIP code 91330 and 91325 near campus tend to see this kind of high-turnover demand.

Away from campus, the Devonshire residential area and Northridge Village are full of 1950s and 60s ranch tract homes. Many still carry original or decades-old hardware. The 1994 Northridge earthquake, centered in neighboring Reseda, left frame settlement as a documented issue in the area, and a front door that no longer lines up can make a deadbolt bind or refuse to throw. In those cases we realign the strike and bolt as part of replacing the lock, so the new hardware works instead of fighting the frame. Homes in ZIP codes 91324 and 91325 off Tampa Ave and Lassen St are typical of this stock.

In Sherwood Forest, the horsekeeping estates have different needs: barn doors, tack rooms, and long driveway gates that face weather and daily use. We replace and key those locks alike so one key handles the whole property. Whether you are near Northridge Hospital Medical Center, the Northridge Fashion Center, or just off Roscoe Blvd or the Ronald Reagan Fwy (SR-118), 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 Northridge locksmith services

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

Lock Replacement in Northridge — FAQs

When should I replace a lock instead of rekeying it?
Rekeying works well when the lock is in good shape and you just want old keys to stop working. Replacement makes more sense when the lock is worn, damaged, stiff, outdated, or you want a different style or security level. Call (323) 997-8867 and we can help you decide.
Can you replace locks at night or on weekends in Northridge?
Yes. We are available 24/7 and fully mobile, so we can come to your Northridge home or property at any hour. After-hours work can be priced differently from scheduled daytime jobs.
My deadbolt has gotten hard to turn since the earthquake years. Is it the lock?
Often it is the frame. Northridge homes have documented settling from the 1994 earthquake, which can pull the strike and bolt out of line. We check alignment first and, if needed, adjust the frame hardware while replacing or rekeying the lock.
Can you replace locks for a whole apartment building near CSUN?
Yes. We handle multi-unit jobs, including rekeying or replacing locks across many units before a semester begins, with keying arranged to suit the property manager. Call (323) 997-8867 to plan the job in advance.
Do you do barn, tack-room, and gate locks on horse properties?
We do. Sherwood Forest properties often need several outdoor locks replaced and keyed alike. We recommend weather-tolerant hardware suited to barns, tack rooms, and driveway gates.
Do I need to be home during the replacement?
Someone authorized should be present, or we should make arrangements beforehand, since we need access to the door and you need to receive the new keys. We will confirm details when you call.
Will the new lock fit my existing door?
Most standard doors accept common replacement locks, but older doors can have unusual bores or wear. We inspect the door first and choose hardware that fits, making adjustments as needed.
Do you have a shop I can visit?
No. Crenshaw Lock Company is mobile only, so we come to your location in Northridge instead. To arrange service, call (323) 997-8867.
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