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Crenshaw Lock

Door Closer Repair in Granada Hills · 24/7 mobile

Door Closer Repair in Granada Hills, California

Crenshaw Lock Company provides door closer repair in Granada Hills, California: hydraulic closers on commercial doors repaired, adjusted or replaced by a fully mobile technician, 24/7. We come to your business, so there is no shop to visit. Call (323) 997-8867 to describe the problem and get started.

  • Mobile to your Granada Hills 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 hangs a few inches short of the latch, and the lock you paid for does nothing because the door never fully shuts. In Granada Hills, that might be a storefront door on Chatsworth St, a medical office near Balboa Blvd, a church or school building, or the back door of a restaurant on Devonshire St.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner David Shar leads the work. Door closers are a regular part of that work. Many closer complaints are not a dead unit at all. They are a valve that needs adjusting, a loose arm or bracket, a door that has sagged on its hinges, or a latch that binds. We diagnose which one it is before suggesting a replacement, so you are not buying a new closer for a problem that was something else.

We are fully mobile and available around the clock. A door that will not latch is a security problem, and it can also be a safety or accessibility problem, so we do not make you wait for a showroom to open. We bring common closers, arms and mounting hardware to your door and work on site.

How it works in Granada Hills

  1. 1

    Describe what the door is doing

    Call (323) 997-8867 and tell us what you see: slamming, slow closing, not latching, leaking oil, or a door that will not stay open. Also tell us whether it is an interior or exterior door and whether it is glass, wood or metal. This helps us bring the right parts.

  2. 2

    Inspect the whole door, not just the closer

    We check the closer body for oil leaks and cracks, the arm and its mounting points, the hinges, the frame alignment, and the latch or panic hardware. A sagging door or a binding latch can make a good closer look bad.

  3. 3

    Adjust the sweep and latch speeds

    Most hydraulic closers have separate valves for the main closing sweep and the final latching stage. If the unit is sound, we tune them so the door closes steadily and clicks shut without slamming. We also check any backcheck or delayed action settings.

  4. 4

    Repair or replace as needed

    A loose bracket or bent arm can often be fixed or swapped alone. A closer leaking fluid or no longer holding its settings is usually better replaced. We explain the choice, and match the mounting style and door size so the new unit fits properly.

  5. 5

    Test through a full cycle

    We open and close the door repeatedly and confirm it latches fully, clears people and carts safely, and works with the lock or exit device. We then show you where the adjustment valves are so you know what was changed.

Need door closer repair in Granada Hills?

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 tightening, or a full replacement unit.
  • The type and size of closer, since heavier exterior and high-traffic doors need different units than light interior doors.
  • The mounting style and arm type, including whether existing holes and brackets can be reused.
  • The condition of the door, hinges and frame, which can add work if the door has sagged or binds.
  • Whether the door has panic hardware or electrified features that must be coordinated with the closer.
  • The time of the call, since after-hours and emergency visits are handled differently from scheduled daytime work.

Why Granada Hills chooses us

  • Fully mobile service: we work at your door in Granada Hills, and there is no storefront to visit.
  • Available 24/7, which matters when a door will not latch at closing time or overnight.
  • Diagnosis first: we look at hinges, frame and latch before recommending a new closer.
  • In business since 1987, with the owner, David Shar, leading the work.
  • We explain the adjustment valves so your staff understand what was done.
  • One company handles the closer, lock, exit device and rekeying, so the door works as a system.

Door Closer Repair across Granada Hills

Granada Hills is mostly a residential community, but its commercial doors work hard. Along Chatsworth St in the Old Granada Hills core, small shops and offices have street-facing doors that get opened hundreds of times a day. Along Balboa Blvd, Devonshire St and San Fernando Mission Blvd, you find medical and professional offices, restaurants and service businesses with heavy-use entrances and back doors.

Local conditions matter. Foothill-area buildings near O'Melveny Park and Bee Canyon deal with heat, dust and Santa Ana winds. Wind can push a door against a closer that is set too weak and leave it hanging open, while dust and heat can make older closers sluggish. We often adjust for wind-exposed doors, including those serving schools and community buildings near Granada Hills Charter High School, and we replace units that no longer hold their settings.

We serve ZIP codes 91344 and 91394 and reach businesses off Zelzah Ave, Rinaldi St, Hayvenhurst Ave and Sepulveda Blvd, with easy access from the 118 and the 405. For a closer that has stopped working, call (323) 997-8867.

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 Granada Hills locksmith services

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

Door Closer Repair in Granada Hills — FAQs

Why does my door slam shut in Granada Hills?
Usually the closing or latching speed valve is set too fast, or the closer is too strong for the door. We can adjust the valves, and if the unit is the wrong size or worn, replace it. Call (323) 997-8867.
My door will not latch unless I push it. Is the closer broken?
Not always. The latch speed may be too slow, the door may have sagged, or the strike may be out of line. We check all of these before recommending a new closer.
Why is oil leaking from my door closer?
A hydraulic closer that leaks fluid has failed seals and will not hold its settings for long. Replacement is normally the right fix. Adjusting will not stop the leak.
Can you repair a closer on a glass storefront door?
Yes. Storefront doors use specific mounting styles, and we match the closer and arm to your door and frame. Tell us about the door when you call.
Do you offer emergency service for a door that will not close?
Yes. We are 24/7 and fully mobile, so we can secure a door that will not latch outside business hours. Call (323) 997-8867.
Can the closer be adjusted for windy conditions?
Often. Foothill and wind-exposed doors may need a stronger closing force or a corrected backcheck. We test the door in its real conditions.
Do I need a new closer or just an adjustment?
If the unit is not leaking and holds settings, adjustment or new brackets may do it. If it is leaking, cracked or inconsistent, replacement is better. We tell you which.
Do you have a shop I can bring the closer to?
No. We are mobile only and do the work at your door in Granada Hills.
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