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Crenshaw Lock

Door Closer Repair in Pomona · 24/7 mobile

Door Closer Repair in Pomona, California

Crenshaw Lock Company provides mobile door closer repair in Pomona, California, available 24/7. We adjust, repair and replace hydraulic closers on commercial doors, coming to your storefront, office or building. Call (323) 997-8867 to describe the problem and get a technician headed your way.

  • Mobile to your Pomona 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 door slams hard enough to rattle a frame, drifts open all afternoon, or stalls an inch short of the latch so it never locks. In a commercial building, that is more than a nuisance. A door that will not latch is a security gap, and a door that slams can hurt a customer or break glass. We repair, adjust and replace hydraulic door closers on commercial doors across Pomona.

Crenshaw Lock Company has served Greater Los Angeles and Ventura County since 1987, and owner and lead technician David Shar built the business on mobile service. We have no storefront for you to visit. We come to the door that is giving you trouble, whether it is an aluminum storefront on Holt Avenue, a brick commercial building downtown, or a suite door near the campuses.

Many closer complaints are not actually a dead closer. Hydraulic units lose speed control when valves are out of adjustment, seasonal temperature changes thicken or thin the fluid, or a loose arm and bracket change the geometry. Sometimes a few adjustments restore the door. Other times a leaking or worn unit has to be replaced. We look at the whole door, including hinges, latch alignment and the frame, so the fix lasts.

How it works in Pomona

  1. 1

    Call and describe the door

    Call (323) 997-8867 and tell us what the door is doing: slamming, not latching, drifting, or leaking oil. Tell us whether it is a glass storefront, a hollow metal door or a wood door. This helps us bring the right parts.

  2. 2

    Inspect the door, not just the closer

    On arrival we check the closer body, arm, bracket and mounting screws, then the hinges, the latch and strike, and the door's alignment in the frame. A sagging hinge or a bind at the frame is often what is overworking the closer.

  3. 3

    Adjust the valves and tune the swing

    If the unit is still sound, we adjust the sweep speed, latch speed and, where the model allows, backcheck. The goal is a door that closes steadily and clicks into the latch without slamming.

  4. 4

    Repair or replace the unit

    If the closer is leaking fluid, has a cracked body, or will not hold adjustment, replacement is the honest answer. We match the unit to the door's size, weight and traffic, and mount it correctly on the existing prep when possible.

  5. 5

    Test the door and confirm it locks

    We cycle the door several times and confirm that it latches and that the lock engages. For doors with accessibility or fire-rated requirements, we tell you what we see and what may need a separate review.

Need door closer repair in Pomona?

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, a repair of the arm or bracket, or full replacement with a new unit.
  • The door type and weight, since a heavy exterior door needs a different closer than a light interior one.
  • The closer model and grade you choose, including surface-mounted, concealed, or heavy-duty commercial units.
  • Condition of the door, hinges and frame, because worn hinges or a misaligned frame may need work too.
  • How many doors are being serviced in one visit, which can make a multi-door property more efficient.
  • Time of day and location of the call, since we offer 24/7 mobile service, including after hours.

Why Pomona chooses us

  • Fully mobile service: we come to your door in Pomona, with no storefront trip required.
  • Operating since 1987, so we have seen how closers behave on old brick buildings and new storefronts alike.
  • We diagnose the whole door, not just the closer, so you are not paying to replace a unit that a hinge was killing.
  • We tell you plainly when an adjustment will do and when replacement is the better call.
  • The owner, David Shar, leads the technical work, so standards stay consistent.
  • Closers, locks and rekeying in one visit, so a door can be made secure and self-closing at once.

Door Closer Repair across Pomona

Pomona's commercial doors cover a lot of ground. In the Downtown Pomona Arts Colony, brick commercial buildings and loft conversions often have heavy older doors where a closer has to work against weight, uneven floors and settled frames. Antique Row on 2nd Street and the galleries near the dA Center for the Arts see steady foot traffic, so a closer that slams or fails to latch shows up fast. Along Holt Avenue and Garey Avenue, aluminum-storefront retail depends on narrow-stile doors and closers that take a daily beating.

Around Cal Poly Pomona and Western University of Health Sciences, offices, clinics and rentals in ZIP codes 91768 and 91767 have doors that open hundreds of times a day. Near Pomona Valley Hospital Medical Center, professional suites need doors that close quietly and latch reliably. In Phillips Ranch, in 91766 and 91765 territory, small office and retail centers have newer stucco-era buildings with standard commercial hardware. In Westmont and Ganesha Hills, mixed-use and older commercial doors are common.

We reach these areas via I-10, SR-60, SR-57 and SR-71. During the LA County Fair, Fairplex vendors and exhibitors may also need door hardware attention, and we can handle locks and closers on-site. Call (323) 997-8867 any hour.

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 Pomona locksmith services

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

Door Closer Repair in Pomona — FAQs

Can you repair a door closer that is leaking oil?
A closer that is leaking fluid has usually lost its seals, and it will not hold adjustment for long. Replacement is generally the right fix. Call (323) 997-8867 and we can look at the door and tell you what we find.
Why does my door slam shut?
Usually the sweep or latch speed valves are set too fast, or the closer has aged and lost control. We can often tune the speed. If the unit will not hold its settings, we replace it.
Why does my door not latch all the way?
It can be a closer set too weak, a latch speed that is too slow, or a misaligned strike or sagging hinge. We check all of these so the door actually locks when it closes.
Do you offer 24/7 service for door closers in Pomona?
Yes. We are available 24/7 and fully mobile. If a door will not close or lock at night, call (323) 997-8867 and we will come to you.
Can you replace a closer on an aluminum storefront door?
Yes. Storefront doors are common along Holt and Garey Avenues. We match the closer to the door and mount it properly on the narrow stile and frame.
Will a new closer fix a door that drags or binds?
Not always. If the door drags because of worn hinges or a shifted frame, a new closer will struggle. We fix the underlying problem along with the closer.
Can you service several doors in one visit?
Yes. Property managers with multiple doors can have them inspected and serviced in a single mobile visit. Call (323) 997-8867 to set it up.
Do you have a shop I can visit?
No. Crenshaw Lock Company is mobile only, so we bring the tools and parts to your door anywhere in Pomona.
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