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Crenshaw Lock

Door Closer Repair in Sun Valley · 24/7 mobile

Door Closer Repair in Sun Valley, California

Crenshaw Lock Company provides mobile door closer repair, adjustment and replacement for commercial doors across Sun Valley, California. We are available 24/7 and come to your warehouse, shop or yard office. If a door won't latch or slams, call (323) 997-8867.

  • Mobile to your Sun Valley 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 man-door sits ajar all night, a fire-rated door won't latch, or a hydraulic arm leaks oil on the floor. In Sun Valley, where warehouses, manufacturing shops and yard offices line San Fernando Road and the corridor behind Hollywood Burbank Airport, a door that doesn't close and latch is a security gap as well as a nuisance.

Crenshaw Lock Company repairs, adjusts and replaces hydraulic door closers on commercial doors. We are fully mobile, so there is no storefront to visit. We bring the work to your door, whether that is a steel man-door beside a roll-up bay, an entry to a small office, or a rear exit that employees prop open all day. David Shar has led the company since 1987, and closer work sits naturally alongside the lock and hardware work we do on the same doors.

Many closer problems are adjustment problems, not replacement problems. Sweep speed, latch speed and backcheck are controlled by small valves, and a door that has slammed for years may only need to be tuned. When a unit is leaking, bent or mismatched to the door, we'll tell you plainly and replace it. A closer that works but sits on a door with a sagging hinge or a misaligned strike will keep failing, so we look at the whole door, not only the arm.

How it works in Sun Valley

  1. 1

    Call and describe the door

    Call (323) 997-8867 any hour. Tell us what the door does: slams, drifts open, won't latch, leaks oil, or hangs up partway. Also mention whether it is interior or exterior and whether it has panic hardware. That helps us bring the right parts.

  2. 2

    We come to you

    We are fully mobile and work around your operation, whether you are in a shop on San Fernando Road or an office near the airport corridor. No storefront visit is needed.

  3. 3

    Inspect the door, not just the closer

    We check hinges, door sag, the strike and latch, weatherstripping, floor stops and how the closer is mounted. Wind, heavy use and forklift traffic often damage the door itself, and that has to be corrected for any closer to last.

  4. 4

    Adjust or replace

    If the unit is sound, we adjust sweep, latch speed and backcheck to the door's weight and traffic. If it is leaking, cracked, bent or undersized, we replace it with a closer suited to the door and mount it correctly.

  5. 5

    Test and hand over

    We cycle the door several times, confirm it closes fully and latches, and check it against any panic or lock hardware. We then show your staff what not to do, such as propping the arm or forcing the door.

Need door closer repair in Sun Valley?

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 needs only adjustment or full replacement, since a tune-up involves far less than new hardware and installation.
  • The size, weight and exposure of the door, because a heavy steel exterior door needs a more robust closer than a light interior one.
  • Door and frame condition: worn hinges, a sagging door or a damaged strike may need repair so the new closer works properly.
  • Interaction with other hardware, such as panic bars, electric strikes or rekeyed locks done during the same visit.
  • Number of doors serviced in one visit, since several doors at the same building are more efficient than separate trips.
  • Time of day, as after-hours and emergency calls differ from scheduled daytime work.

Why Sun Valley chooses us

  • Fully mobile and 24/7, so a door that won't secure at night can be handled without waiting for business hours.
  • In business since 1987, with experience on the heavy-use doors typical of industrial buildings.
  • We treat the closer as part of the door's security, checking latch, strike and lock hardware as well as the arm.
  • We tell you honestly when a simple adjustment will do, rather than selling a replacement you don't need.
  • Closer work can be combined with rekeying, man-door hardware and roll-up door lock work in a single visit.
  • No storefront means no counter or showroom overhead; the work happens at your door.

Door Closer Repair across Sun Valley

Sun Valley is one of the most industrial districts in Los Angeles, tucked at the base of the Verdugo Mountains. Warehouses, manufacturing shops, auto-dismantlers and recycling yards line San Fernando Road, with more industrial buildings behind Hollywood Burbank Airport near Glenoaks Boulevard, Sunland Boulevard and Vineland Avenue. Man-doors on these buildings take real punishment: carts, pallet jacks, trucks passing, and employees propping doors open for ventilation. Closers wear out quickly in that environment, and ZIP code 91352 has plenty of doors that need attention.

A common scenario is a warehouse in the airport-adjacent corridor that has had staff turnover. The man-door and roll-up door are rekeyed, but the man-door still swings loosely because its closer is failing. We can handle both in one visit. Another is a yard office on San Fernando Road, near spots like the Pink Motel and Cadillac Jack's Cafe, where a door that never latches defeats the hardened padlocks and gate locks protecting the property.

We also serve the residential pockets of Stonehurst and the La Tuna Canyon area. Those are mostly homes, where closers are less common, but small commercial doors, shared entries or garage side doors sometimes need one. With I-5 and CA-170 close by, we reach most of Sun Valley without trouble. Call (323) 997-8867 any time.

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Other Sun Valley locksmith services

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

Door Closer Repair in Sun Valley — FAQs

Can you repair a door closer instead of replacing it?
Often, yes. Many closers only need adjustment of sweep speed, latch speed or backcheck, or a mounting fix. If the unit is leaking oil, cracked or bent, replacement is the honest answer. We'll tell you which applies after inspecting the door. Call (323) 997-8867.
Why does my door slam shut?
Usually the latch speed or sweep valve is set too fast, or the closer is too strong for the door. Adjusting the valves often fixes it. A worn closer can also slam if it has lost fluid, in which case it should be replaced.
Why won't my door latch completely?
The closer may be too weak, the latch speed may be set too slow, or the strike and latch may be misaligned. Warped or sagging doors cause this too. We check all of them so the door closes and latches reliably.
My closer is leaking oil. Is that urgent?
A leaking closer is failing and will eventually stop controlling the door. It can also stain floors and create a slip risk. Have it replaced soon. If the door can't be secured, call us any time at (323) 997-8867.
Do you service industrial doors in Sun Valley?
Yes. We are mobile and serve warehouses, manufacturing shops, yard offices and other businesses along San Fernando Road and around the Hollywood Burbank Airport corridor. We handle man-doors and related lock hardware.
Can you do door closers and rekeying in the same visit?
Yes. If you've had staff turnover and need locks rekeyed, we can address the closer, strike and lock hardware on the same door in one trip, which saves you time.
Are you available after hours?
Yes. We are available 24/7 and fully mobile, so a door that won't close or secure at night can be dealt with. Call (323) 997-8867.
Do I need a special closer for a fire-rated or exterior door?
Possibly. Fire-rated doors must close and latch on their own, and exterior doors face wind and heavier use. We'll recommend a closer suited to the door and its location, and make sure it works with any panic hardware.
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