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Crenshaw Lock

Door Closer Repair in Northridge · 24/7 mobile

Door Closer Repair in Northridge, California

Crenshaw Lock Company repairs, adjusts and replaces hydraulic door closers on commercial doors throughout Northridge, California. We are fully mobile and available 24/7, so we come to your building. Call (323) 997-8867 to describe the door and get a technician headed your way.

  • Mobile to your Northridge location
  • Available 24/7
  • Price quoted before we start
Call (323) 997-8867or tap to call — we answer 24/7
Hydraulic door closer mounted at the top of a commercial door
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A door closer is easy to ignore until it fails. Then the door slams, drifts open, or stops short of the latch, and your building is either loud, unsecured, or both. In Northridge, where commercial doors serve everything from campus-area offices to medical suites and retail corridors, a bad closer is more than an annoyance. A door that will not latch is an open door overnight, and one that slams can pinch fingers or fail an accessibility check.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, led by owner and lead technician David Shar. We repair, adjust and replace hydraulic door closers on commercial doors, and we do it on site. We are mobile only, with no storefront, so the work happens at your door with the tools and parts in our vehicle.

Many closer complaints are not true failures. Hydraulic fluid leaks, loose arm brackets, worn pivots and misadjusted speed valves all produce similar symptoms, and so does a door frame that has shifted over the decades. We diagnose the cause first, then recommend adjusting, repairing or replacing the closer, whichever makes sense for your door.

How it works in Northridge

  1. 1

    Describe the problem by phone

    Call (323) 997-8867 and tell us how the door behaves: slamming, hanging open, not latching, leaking oil, or sagging. Tell us whether it is a glass storefront, a metal door or a wood door, and whether it is an exterior or interior opening.

  2. 2

    On-site inspection of door, frame and closer

    We check the closer body for fluid leaks, the arm and bracket for looseness or bending, and the door for hinge wear and sag. We also look at the frame and latch alignment, because a door that binds can make a healthy closer look broken.

  3. 3

    Adjust before replacing

    Many closers only need the sweep speed, latch speed or backcheck tuned, or loose mounting screws tightened. If an adjustment solves it, we tell you so and you avoid buying hardware you do not need.

  4. 4

    Repair or replace the closer

    If the unit is leaking, cracked or no longer holding settings, we recommend replacement sized correctly for the door's width, weight and traffic. We mount it with the proper arm configuration and check that the door closes fully against the latch.

  5. 5

    Final test and handoff

    We cycle the door several times, check the latch engagement and confirm it opens without excessive force. We show you the adjustment screws so your staff knows what we set, and you leave with a door that closes and secures reliably.

Need door closer repair in Northridge?

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

Call (323) 997-8867

What affects the price

  • Whether the job is a simple adjustment, a repair, or a full closer replacement
  • The size, weight and type of door, such as glass storefront, hollow metal or solid wood, which determines the closer grade needed
  • The grade and brand of closer chosen, including heavier duty units for high-traffic entrances
  • Related issues found at the door, such as worn hinges, a sagging door or a misaligned latch that must be corrected too
  • The number of doors serviced in one visit, since several openings in the same building can be handled together
  • Time of day, since after-hours and emergency calls differ from scheduled daytime visits

Why Northridge chooses us

  • Fully mobile service: we work at your door, not in a shop, so the closer is tested on the actual opening
  • Serving Greater Los Angeles and Ventura County since 1987, with owner David Shar leading the work
  • We diagnose the whole door, including hinges, frame and latch, rather than swapping a closer that was not the real problem
  • Honest recommendations: if a quick adjustment fixes it, we say so instead of selling a replacement
  • Available 24/7, which matters when a door will not latch and the building needs to be secured tonight
  • We handle the locks too, so a door closer visit can include rekeying or hardware repair on the same opening

Door Closer Repair across Northridge

Northridge's commercial doors work hard. Around the CSUN and university district, offices, shops and apartment-complex common doors along Reseda Blvd and Nordhoff St open and close constantly, and heavy foot traffic wears closers quickly. Near the Northridge Fashion Center and the Northridge Hospital Medical Center area, entry doors for retail and medical suites need to close smoothly and latch every time. We serve addresses in 91330, 91324, 91325, 91327 and 91328, including Northridge Village and the Devonshire Street corridor.

The local building stock adds its own wrinkles. Much of Northridge was built in the 1950s and 1960s, and the 1994 earthquake, whose epicenter was in neighboring Reseda, left frame settlement as a documented issue in the area. A door that has shifted even slightly can rub, bind or miss its strike, and a closer then strains against it. When we see that, we address the alignment as well as the closer so the repair lasts.

Whether you manage a property in the Devonshire residential area, a small business off Tampa Ave or Balboa Blvd, or a building near the Ronald Reagan Fwy (SR-118), we come to you. Call (323) 997-8867 any hour and we will work out the next step.

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Other Northridge locksmith services

See all of our Northridge services, or our citywide door closer repair page.

Door Closer Repair in Northridge — FAQs

How do I know if my door closer needs repair or replacement?
Signs include oil leaking from the body, a door that slams or drifts open, a door that stops short of the latch, or an arm that looks bent or loose. Many issues are fixed with adjustment. Call (323) 997-8867 and we will help you tell the difference.
Can you adjust a door closer instead of replacing it?
Yes. Sweep speed, latch speed and backcheck are adjustable on most hydraulic closers, and loose mounting is often the culprit. We try adjustment first and only recommend replacement when the unit is leaking, damaged or cannot hold its settings.
Do you offer door closer service at night or on weekends in Northridge?
Yes. We are available 24/7 and fully mobile. If a door will not latch and your building is unsecured, call (323) 997-8867 at any hour.
Could earthquake settling be causing my door to bind?
It can. Northridge has a documented history of frame settlement after the 1994 earthquake, particularly in older buildings. A shifted frame can make a door rub or miss its strike, so we check alignment along with the closer.
Do you work on glass storefront doors?
Yes. We repair, adjust and replace closers on commercial doors, including glass storefront entries. The right closer depends on the door's type, width and weight, which we assess on site.
Can you service several doors in one visit?
Yes. Property managers in the CSUN area and elsewhere often have several doors needing attention. We can inspect and service multiple openings in one visit. Call (323) 997-8867 to discuss the scope.
Do you have a shop I can bring the closer to?
No. We are mobile only and have no storefront. We come to your door with tools and parts so the closer can be installed and tested in place.
What affects the cost of door closer repair?
The main factors are whether it needs adjustment, repair or replacement, the door's size and weight, the closer grade, any related hinge or latch problems, and how many doors are involved. We explain the options before starting work.
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