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Crenshaw Lock

Door Closer Repair in Altadena · 24/7 mobile

Door Closer Repair in Altadena, California

Crenshaw Lock Company repairs, adjusts and replaces hydraulic door closers on commercial doors in Altadena, California. We are fully mobile and available 24/7, so we come to your door wherever it is. For a slamming, drifting or non-latching door, call (323) 997-8867.

  • Mobile to your Altadena 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 the door stops latching, slams hard enough to rattle the frame, or hangs open all night. On a commercial door that is more than an annoyance. A door that will not latch is a security gap, and one that closes too fast or too hard can be a safety and accessibility problem for customers, tenants and staff.

Crenshaw Lock Company has been serving Greater Los Angeles and Ventura County since 1987, and owner and lead tech David Shar and our team handle door closer work as part of everyday commercial hardware service. We repair, adjust and replace hydraulic closers on storefronts, offices, shared entries and service doors. We are mobile only, with no storefront to visit, so everything happens on site at your door.

Altadena has a distinct mix right now. Established businesses along corridors like Lake Ave and Fair Oaks Ave sit alongside rebuilding activity after the January 2025 Eaton Fire. Both situations put real demands on door hardware, from older closers worn out by years of daily use to brand-new doors that need a closer set up correctly from the start.

How it works in Altadena

  1. 1

    Call and describe the door

    Call (323) 997-8867 and tell us what the door is doing: slamming, not latching, leaking fluid, drifting open, or hanging by a bracket. Tell us the door type and whether it is interior or exterior. That helps us bring the right parts to the job.

  2. 2

    On-site inspection

    We come to you and look at the whole door, not just the closer. Hinges, door weight, frame alignment, threshold, latch and any weatherstripping all affect how a closer behaves. A closer is often blamed for a problem that is really a sagging hinge or a bound latch.

  3. 3

    Adjust if the closer is still good

    Many closers only need adjusting. We set the sweep speed, latch speed and, where the unit has it, backcheck, so the door closes fully and latches without slamming. If the unit is sound, this can be the whole fix.

  4. 4

    Repair or replace

    If the closer is leaking hydraulic fluid, has a cracked body, a bent arm or stripped mounting, we replace it with a unit suited to the door's size, weight and exposure. We reuse existing mounting where it is sound and fix loose or damaged fastening.

  5. 5

    Test and walk through

    After installation we cycle the door several times, check that it latches reliably, and confirm it opens with reasonable effort. We show you the adjustment screws so you know what was set and why.

Need door closer repair in Altadena?

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, a repair to mounting or arms, or a full replacement.
  • The size, weight and exposure of the door. Heavy or exterior doors typically need a more robust closer than a light interior door.
  • The number of doors on the job, since several closers at one site can be handled in a single visit.
  • Related problems found during inspection, such as worn hinges, a misaligned frame or a binding latch.
  • Special requirements like hold-open features, accessibility-friendly opening force or a particular finish.
  • Timing of the visit, since after-hours and emergency calls are handled differently from scheduled daytime work.

Why Altadena chooses us

  • Crenshaw Lock Company has served the Los Angeles area since 1987, so we have seen the failure patterns of closers on many door and frame types.
  • We diagnose the whole door. Replacing a closer without fixing a sagging hinge only means the new one wears out early.
  • We are fully mobile and available 24/7, so a door that will not secure can be dealt with after hours as well.
  • We work on commercial hardware beyond closers, including locks, rekeying and master-key systems, so one visit can cover related issues.
  • We explain what we find in plain terms and tell you when an adjustment is enough rather than pushing a replacement.
  • Because we have no storefront, our attention is on the job at your door, not on a counter.

Door Closer Repair across Altadena

Altadena is an unincorporated foothill community, and its commercial doors reflect that. Businesses, offices and public-facing buildings around Lake Ave, Lincoln Ave, Fair Oaks Ave and Altadena Dr see steady daily use, and the closers on them wear out like anywhere else. In ZIP 91001 and ZIP 91003, we are called out for doors that drift, slam or fail to latch, often because a closer was set once years ago and never touched again.

The Eaton Fire in January 2025 changed what many local properties need. New construction and rebuilds mean fresh doors that need closers sized and adjusted properly, along with new locksets and keying. On surviving buildings, heat, ash and soot can leave hardware stiff or fouled, and a closer that has been exposed may leak or bind. We can inspect these and tell you whether cleaning, adjustment or replacement makes sense.

Whether your door is near Christmas Tree Lane, in the Janes Village area, close to the Altadena Country Club or The Meadows, or out toward Woodbury Rd and the foothills near Cobb Estate and Farnsworth Park, we come to you. 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 Altadena locksmith services

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

Door Closer Repair in Altadena — FAQs

Why does my commercial door slam shut?
Usually the closer's sweep or latch speed is set too fast, or the unit is failing. A quick adjustment often fixes it. If the closer is leaking fluid, it likely needs replacement. Call (323) 997-8867 and we can check it on site.
My door will not latch fully. Is the closer broken?
Not always. A weak or poorly adjusted latch speed is common, but misaligned frames, sagging hinges or a binding latch can cause the same symptom. We inspect the whole door before deciding.
Can you repair a closer that is leaking oil?
A closer leaking hydraulic fluid has failed internally and generally cannot be reliably repaired. We replace it with a unit suited to the door and make sure the mounting is sound.
Do you work on doors in Eaton Fire rebuilds in Altadena?
Yes. We can set up closers on new commercial doors, along with locksets and keying. Call (323) 997-8867 to talk through the job and what the doors need.
Can smoke or soot damage a door closer?
Ash and heat exposure can leave closers and other hardware stiff, fouled or damaged. We inspect the unit and tell you whether cleaning and adjustment will do or replacement is the safer choice.
Do you offer emergency service for a door that will not close?
We are available 24/7 and fully mobile. If a door will not close or latch and your building is unsecured, call (323) 997-8867 and we will help you get it secured.
What affects the cost of door closer work?
Mainly whether it needs adjustment or replacement, the door's size and weight, how many doors are involved, and any related hardware problems. We explain this before work begins.
Do I need to visit your shop?
No. We are mobile only and have no storefront. We bring the tools and parts to your door anywhere in Altadena.
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