Commercial garage doors

Commercial door won’t run on its operator?

When a business door stops, it is usually the operator, the springs, or both. Operators are the most common thing in our commercial job records, and we repair or replace trolley, jackshaft and hoist units.

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Is this what you're seeing?

  • A sectional or rolling steel door at your business won’t open or close from the button.

  • The operator hums, clicks or runs without moving the door.

  • The door has to be opened by hand or with the chain hoist.

  • An older operator keeps failing and parts are hard to get.

What's going on

Commercial doors use heavier operators than homes: trolley units that run on a rail like a home opener, jackshaft units mounted beside the door that turn the torsion shaft directly, and hoist units with a chain for manual use. Some run on three-phase power.

They fail the same ways home openers do, just under more use: worn drive parts, failed controls, or a door that has become too heavy because the springs are worn. The safety sensors and wiring also take a beating in busy openings.

What to do right now

Do

  • If the door must be secured, use the manual disconnect or chain hoist and lock it.

  • Note the operator brand and model on its label, and whether it runs on single- or three-phase power.

  • Tell us how many doors and how often they cycle in a day.

Don't

  • Don’t keep pressing the button on an operator that hums or strains.

  • Don’t disconnect a door with a broken spring and let it drop. Commercial doors are very heavy.

  • Don’t bypass the safety sensors or edges to keep the door running.

How we fix it

Operator work is part of our commercial garage door service. Our commercial records show what these jobs involved.

What the work involved

  • Operator51 of 94 jobs
  • Springs20 of 94 jobs
  • Maintenance18 of 94 jobs
  • Sections17 of 94 jobs
  • Rollers13 of 94 jobs
  • Cables13 of 94 jobs
Commercial door jobs since 2017
104

Recent jobs like this

  1. May 2026

    Denver

    Found

    A commercial door’s operator needed replacing.

    Fixed

    Removed the old operator and installed a Raynor ControlHoist jackshaft operator.

  2. Apr 2026

    Northern Colorado

    Found

    A commercial door needed an operator.

    Fixed

    Installed, wired and programmed a pre-owned commercial operator.

  3. Feb 2026

    Northern Colorado

    Found

    A commercial door had damaged brackets, wiring and track.

    Fixed

    Replaced four bottom brackets and a 14-foot vertical track, rewired and balanced the door, and remounted the spring.

  4. Sep 2025

    Denver

    Found

    A rolling steel door needed repair.

    Fixed

    Repaired it, then lubricated and tuned it up.

  5. Jul 2025

    Golden

    Found

    The springs and the commercial trolley operator needed replacing.

    Fixed

    Replaced both springs and the operator, then lubricated and adjusted the door.

  6. Dec 2024

    Denver

    Found

    A commercial door had worn rollers, hinges and cables.

    Fixed

    Replaced them, rebalanced the door and serviced it.

Repair or replace?

A newer operator with a failed part is worth repairing. An older one with discontinued parts, or one undersized for how often the door runs, is usually better replaced. We check the springs and door balance either way, because a heavy door kills operators.

Get your business door running

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