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Crenshaw Lock

Door Closer Repair in San Fernando · 24/7 mobile

Door Closer Repair in San Fernando, California

Crenshaw Lock Company provides mobile door closer repair, adjustment and replacement for commercial doors in San Fernando, California. We are available 24/7 and come to your business with tools and parts. If a door slams, drifts open or won't latch, call (323) 997-8867.

  • Mobile to your San Fernando 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 a storefront door hangs ajar overnight, an office door slams on a customer's hand, or a latch never catches and the lock does nothing. In San Fernando, where many businesses sit in older buildings along San Fernando Road and the San Fernando Mall, a failing closer is often the quiet cause of a door that will not secure.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and we are fully mobile. There is no storefront to visit. We come to your door, look at how it swings and latches, and decide whether the closer needs adjusting, rebuilding of the surrounding setup, or full replacement. Owner and lead tech David Shar built the company on practical, honest door and lock work, and that approach applies to closers just as much as to locks.

Hydraulic closers control two things: how fast the door swings closed and how firmly it latches at the end. Over the years the fluid seals wear, arms loosen, brackets work free from old frames, and temperature swings change how the unit behaves. Many problems are fixed with a proper adjustment. Others call for a new closer matched to the door's weight, width and traffic. We tell you which it is before we do the work.

How it works in San Fernando

  1. 1

    Call and describe the door

    Call (323) 997-8867 any time, day or night. Tell us what the door is doing: slamming, closing too slowly, not latching, leaking oil, or hanging off its bracket. Also mention whether it is a storefront, office, or back door, and whether it is wood, metal or aluminum.

  2. 2

    We come to you

    Because we are fully mobile, we bring our tools and a range of closers and arms to your San Fernando location. No shop visit, no removing the door and carrying it somewhere.

  3. 3

    Inspect the door, frame and closer

    We check more than the closer body. Hinges, door sag, a warped frame, a rubbing sweep, or a latch that is out of alignment can all mimic a bad closer. Older downtown doors with worn hardware often need this broader look.

  4. 4

    Adjust, repair or replace

    If the closer is sound, we adjust the sweep speed, latch speed and backcheck where applicable, and tighten loose arms and brackets. If it is leaking or worn out, we recommend a replacement sized for the door and install it, drilling and mounting carefully so it holds.

  5. 5

    Test the full swing and latch

    We open and close the door repeatedly, confirm it latches each time without slamming, and check the lock engages properly. If the door is a fire-rated or accessibility-related opening, we talk through what it needs to do so you can make informed choices.

  6. 6

    Walk through what we did

    You get a plain explanation of what was wrong and what we changed, and what to watch for in the future, such as seasonal changes that may need a small adjustment.

Need door closer repair in San Fernando?

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

Call (323) 997-8867

What affects the price

  • Whether the closer only needs adjustment or needs full replacement, which changes both parts and labor
  • The type and grade of closer needed for the door's weight, width, and how many people use it each day
  • Door and frame condition, since a sagging door or worn hinges may need attention before a closer can work properly
  • Mounting situation, such as an older wood, steel or aluminum storefront frame that needs special brackets or careful drilling
  • Number of doors serviced in one visit, for example a multi-door building or a shared entry
  • Time of day and urgency, since after-hours calls differ from scheduled visits

Why San Fernando chooses us

  • Fully mobile service, so repairs happen at your door in San Fernando with no storefront trip
  • Available 24/7, useful when a door will not latch and the business cannot be left unsecured overnight
  • Serving the Los Angeles area since 1987, with experience on older commercial buildings and their hardware
  • We look at the whole door, including hinges, latch, and frame, rather than swapping closers without finding the cause
  • Honest recommendations: if an adjustment solves it, we say so rather than selling a replacement
  • One company for locks and closers, so rekeying, latch repair and closer work can be handled in the same visit

Door Closer Repair across San Fernando

San Fernando is a small, independent city of about 2.4 square miles, completely surrounded by the City of Los Angeles, and its business life is concentrated downtown. Along the San Fernando Mall, Truman Street and San Fernando Road, many storefronts are early-1900s brick buildings with older frames, transoms and aging door hardware. Those doors often sit slightly out of square, which is hard on a closer and can keep a latch from catching. We take that into account when we adjust or choose a replacement.

Beyond downtown, we work with businesses, offices and public-facing doors near Las Palmas Park, the Layne Park and Recreation Park area, and along Maclay Avenue and Brand Boulevard. In ZIP code 91340, the city is easy to reach by road from I-5 and CA-118, so a mobile technician can get to the door rather than asking you to bring anything in. The area's mix of historic storefronts, municipal buildings near San Fernando City Hall, and neighborhood businesses means each door needs its own assessment.

If you manage a shop near the Lopez Adobe, a clinic close to Mission San Fernando Rey de Espana in neighboring Mission Hills, or an office on San Fernando Road, call (323) 997-8867. We are happy to look at your door and explain what it needs.

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 Fernando locksmith services

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

Door Closer Repair in San Fernando — FAQs

My door closer is leaking oil. Can it be repaired?
Generally, no. Oil leaking from a hydraulic closer means the seals have failed, and the unit usually needs to be replaced. We can confirm the cause and install a properly sized replacement. Call (323) 997-8867 to arrange a visit.
Why does my storefront door slam shut?
Often the closing or latch speed is set too fast, or the arm has loosened. A quick adjustment frequently fixes it. If the closer is worn or the wrong size for the door, replacement may be the better option.
The door closes but won't latch. Is that the closer?
It can be, but not always. The latch speed may be too slow, or the door and frame may be misaligned, which is common in older San Fernando downtown buildings. We check the closer, hinges, strike and latch together.
Do you repair door closers on historic downtown buildings?
Yes. Older brick buildings along San Fernando Road and the Mall often have frames that are out of square or hardware that is dated. We mount and adjust closers carefully for those conditions.
Can you come after hours if my door won't secure?
Yes. We are available 24/7 and fully mobile. If a door won't latch and your business is exposed, call (323) 997-8867 and we will help get it secured.
How do I know whether I need a new closer or just an adjustment?
If the closer is not leaking, is firmly mounted and still moves smoothly, an adjustment often solves the problem. If it leaks, jerks, or can't hold settings, it is typically time to replace it. We will explain which applies before we start.
Do you have a shop I can visit?
No. Crenshaw Lock Company is mobile only. We come to your location in San Fernando, so there is no storefront to visit.
Can you also fix the lock on the same door?
Yes. We handle locks, rekeying and latch repair as well, so we can address the closer and the lock in a single visit. For questions, 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