Commercial Garage Door Service

The First Ten Minutes After a Commercial Door Fails

Stop using the door first. Most of the truly expensive damage happens after the initial failure, when someone keeps pressing the operator button or drives a forklift under a half-open door.

• Disconnect or lock out the operator. A motor dragging a door with a broken counterbalance spring can burn out and snap the lifting cables.
• Keep people and equipment out of the opening. A door frozen partway up may not stay there.
• Do not force a rolling steel door that has jumped its guides. Pushing it bends the interlocking slats, and bent slats cannot feed back into the guides.
• Write down the symptoms. A loud bang usually means a spring. A crooked door usually means a cable. A humming motor with no movement points at the operator or the counterbalance.

Then put all of it in a service request through the form on our contact page. The more detail you give about the door type and what it did, the better the request can be matched with a technician who works on that hardware.

Rolling Steel, Sectional, and Dock Doors Fail in Different Ways

Commercial buildings mix several door types, and each one fails in its own way.

• Rolling steel doors coil interlocking metal slats around a barrel above the opening. The counterbalance springs live inside that barrel, so a broken spring is invisible from the floor; the tell is a door that suddenly feels far too heavy on the chain hoist or will not stay up.
• Sectional commercial doors look like heavier versions of residential doors, but they often run on 3-inch track instead of the 2-inch track used on homes, and they may be configured for high-lift or full vertical lift in buildings with tall ceilings.
• Loading dock doors take a beating from trailers and forklifts. Bent bottom sections are the classic injury, and a dragging bottom seal lets in weather and pests long before the door actually stops moving.

High-Cycle Springs: Count Cycles, Not Years

One cycle is one full open and close. A standard commercial torsion spring is commonly rated around 10,000 cycles. A home door that opens four times a day takes years to use that up. A shop door that cycles 40 times a day can burn through it in well under a year.

High-cycle springs rated for 25,000, 50,000, or even 100,000 cycles use heavier wire and longer coils to spread the metal fatigue. If a spring on a busy door has already failed once, a like-for-like replacement often just schedules the next failure at the same interval.

Safety warning: torsion springs store violent amounts of energy whether the door is residential or commercial. Never unbolt, adjust, or wind one, and never touch the cables or bottom brackets they load. This is the one repair category where do-it-yourself attempts cause serious injuries.

Fire Doors and the Annual Drop Test

If your building has rolling fire doors protecting openings in fire-rated walls, they fall under NFPA 80, the widely adopted standard for fire doors and other opening protectives. NFPA 80 calls for fire door assemblies to be inspected and tested annually, and for rolling fire doors that includes a drop test: the door is released to confirm it closes on its own at a controlled speed. The standard has the test performed twice — once to confirm full closure and a second time to confirm the automatic-closing mechanism was reset correctly — with written records kept.

Responsibility for arranging that testing generally sits with the building owner. A fire door that has been wedged open, tied off, or blocked by pallets will not protect the opening no matter what its label says. If your fire doors have not been tested in the past year, say so in your service request along with the door count.

Downtime Math and Planned Maintenance for Door Fleets

The repair itself is rarely the biggest cost of a failed commercial door. A bay stuck closed means trailers idling, missed dock appointments, and crews standing around. A door stuck open overnight means security exposure and heated or cooled air escaping. That math is why planned maintenance usually beats waiting for a breakdown.

For a building with several doors, a maintenance plan keyed to cycle counts works better than a calendar alone:

• High-use doors get inspected more often than doors that open twice a week.
• Each visit covers lubrication of hinges and bearings, cable checks for frayed strands near the bottom brackets, roller wear, guide and track alignment, and an operator safety-reversal test.
• Every door gets its own written record, because doors installed together tend to fail together — one broken spring in a row of same-age doors is a preview, not a fluke.

To arrange an assessment across multiple doors, submit one service request through the form on our contact page and list the door types, ages if known, and rough daily usage for each.