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Crenshaw Lock

Door Closer Repair in Simi Valley · 24/7 mobile

Door Closer Repair in Simi Valley, California

Crenshaw Lock Company provides mobile door closer repair in Simi Valley, California, available 24/7. We repair, adjust and replace hydraulic closers on commercial doors so they latch properly and close safely. Call (323) 997-8867 and we will come to your business.

  • Mobile to your Simi 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 storefront door slams on customers, hangs open all night, or drifts shut without ever latching. In Simi Valley, where so many businesses sit behind aluminum-storefront doors, a misbehaving closer is more than an annoyance. It can leave a shop unsecured after hours, and it can create a hazard for people walking in and out.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and our owner and lead tech David Shar has spent decades working on commercial hardware. We repair, adjust and replace hydraulic door closers on commercial doors. We are fully mobile, so there is no storefront to visit. We bring the tools and the parts knowledge to your door, whether that is a retail unit on Cochran St, a suite in a business park near Madera Rd, or a shop in the Simi Valley Town Center.

Many closer problems are not a dead unit at all. Often the speed valves have drifted, the arm has loosened, the mounting screws have worked free of the frame, or the door has sagged so the closer fights the hinges. We diagnose the whole door, not just the closer body, so you pay to fix the real problem and not simply to swap a part that was fine.

How it works in Simi Valley

  1. 1

    Call and describe the door

    Call (323) 997-8867 and tell us what the door is doing: slamming, closing too slowly, not latching, leaking oil, or hanging open. Tell us if it is a glass storefront door, a wood or hollow metal door, or a rear service door. That helps us arrive prepared.

  2. 2

    Inspect the door, frame and hardware

    We check the closer, its arm and bracket, the hinges, the latch or panic device, and the door's alignment. A sagging door or a binding latch often makes a good closer look bad, so we look at the whole system before recommending anything.

  3. 3

    Adjust the closer where possible

    If the unit is sound, we tune it. That means setting the sweep speed, the latching speed and, where the model allows, the backcheck. We also tighten loose mounting hardware. Many nuisance complaints are resolved at this stage.

  4. 4

    Replace a failed closer when needed

    A closer that leaks fluid, will not hold adjustment or has a bent or cracked arm should be replaced. We match the size and mounting style to the door, whether it is regular arm, parallel arm or top-jamb, and fit the new unit correctly to the frame.

  5. 5

    Test, confirm latching and walk you through it

    We cycle the door repeatedly and confirm it closes smoothly and latches firmly every time. We also check it works with any panic hardware or electric strike on the door. We show you the adjustment points so you know what to expect over time.

Need door closer repair in Simi 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 existing closer can be adjusted or repaired, or must be fully replaced
  • The type and size of closer needed for the door, including its weight, width and whether it is exterior or interior
  • Mounting style and frame type, such as aluminum storefront, hollow metal or wood, which affects installation work
  • Related problems like sagging hinges, a misaligned latch or worn panic hardware that need attention alongside the closer
  • How many doors are involved, since several doors at one property can often be handled in a single visit
  • The time of day or night the service is requested, given that we answer 24/7

Why Simi Valley chooses us

  • Fully mobile service: we come to your business, with no shop visit and no need to take the door off and bring it in
  • Over three decades of local experience since 1987, including hands-on work with commercial storefront and panic hardware
  • We diagnose the whole door, so we do not replace a closer when the real problem is a sagging hinge or a sticking latch
  • Available 24/7, which matters when a door that will not latch leaves a business open overnight
  • The owner, David Shar, leads the work, so the person who knows the trade is accountable for the result
  • We also handle the locks and panic bars on the same door, so one visit can cover closer, latch and security together

Door Closer Repair across Simi Valley

Simi Valley's commercial doors take a lot of daily use. The aluminum-storefront strip retail along Cochran St and First St sees constant foot traffic, and those glass doors depend on closers that are set correctly to avoid slamming or hanging open. Business parks near Easy St and Madera Rd have a mix of suite entries and rear service doors, which often have heavier closers and panic hardware. Inside the Simi Valley Town Center, shop doors and back-of-house doors are used all day, and the closers wear accordingly.

We serve the whole city, from businesses in the 93065 area on the east side near Madera Rd and Tapo Canyon Rd to those in 93063 around the central corridor and the SR-118 Ronald Reagan Fwy. We also reach 93062, 93064 and 93094. Offices, churches and small commercial buildings in neighborhoods like Wood Ranch, Big Sky and the Texas Tract may have their own entry doors that need the same attention.

Simi Valley's weather matters too. Hot summer days and temperature swings can change how hydraulic fluid behaves, which is one reason a closer that worked fine in spring may start slamming or dragging later in the year. Whether you are near Rancho Simi Community Park, close to the Ronald Reagan Presidential Library & Museum, or off Sycamore Dr, call (323) 997-8867 and we will come to you.

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Other Simi Valley locksmith services

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

Door Closer Repair in Simi Valley — FAQs

Do you offer door closer repair in Simi Valley at night?
Yes. We are available 24/7 and fully mobile. If a door will not latch and your business is unsecured, call (323) 997-8867 any time and we will come to you.
Can my existing door closer be repaired, or does it need replacing?
Often it can be adjusted. If the speed settings have drifted or the screws are loose, a tune-up may be enough. If the closer leaks fluid, cannot hold adjustment or has a damaged arm, replacement is the better choice. We will tell you honestly which applies.
Why does my storefront door slam or close too slowly?
Usually the sweep or latching speed valves need adjusting. Temperature changes can also affect hydraulic fluid. A sagging door or worn hinges can add to the problem, so we check the whole door.
Why won't my door latch fully even though it closes?
The latching speed may be too slow, the door may have sagged, or the latch and strike may be misaligned. We check all three and correct the cause, not just the symptom.
Do you work on doors with panic bars?
Yes. We make sure the closer works with the panic hardware and any electric strike, and we can repair the panic device during the same visit. Call (323) 997-8867 to describe your setup.
Can you service closers at the Simi Valley Town Center or strip retail on Cochran St?
Yes. We work on commercial doors across Simi Valley, including storefronts, shop entries and rear service doors. As a mobile service we come to the door, so you do not need to bring anything in.
Can you replace several door closers in one visit?
Yes. If your property has multiple doors with failing closers, we can usually inspect and service them together. Describe the doors when you call so we can plan the visit.
Do you have a storefront I can visit?
No. Crenshaw Lock Company is mobile only. We travel to your location in Simi Valley and the surrounding Ventura County area.
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