Commercial doors we repair, and the parts that wear
Most business openings have one of two door types. A roll-up door is a curtain of interlocking metal slats that coils around a barrel above the opening. Its springs sit inside that barrel, and the curtain rides in steel guides on each side. A sectional door works like an oversized home garage door, with hinged sections, rollers in tracks and torsion springs on a shaft overhead.
Both see far more use than a door at home, so wear shows up sooner. These are the parts we repair:
- Springs: inside a roll-up barrel or on a sectional shaft, matched and tensioned to the door.
- Lift cables, drums and bearings on sectional doors.
- Guides and tracks that are bent, loose or out of line, often after a bump from a forklift or truck.
- Rollers, hinges, and the bottom bar with its seal.
- The operator (the motor unit) already in place: limit switches, brake, gears, drive chain, control board and the push-button station.
- Safety devices: photo eyes and the reversing edge along the bottom of the door.
- The chain hoist that lets staff raise the door by hand during a power outage or a fault.
The parts are heavier than on a house door, but the logic is the same. Our pages on spring repair, opener repair and track repair explain how each repair works.
Warning signs on a roll-up or sectional door
Commercial doors usually give notice before they quit. Share these with whoever opens and closes the bay:
- The door drifting down, or getting harder to raise by hand, as the springs lose tension.
- Banging or scraping in the guides, or slats bending and pulling out of line.
- An operator that hums without moving the door, or stops short of the floor or the top.
- Doors that bounce back up on their own, or keep closing when something breaks the safety beam.
- A frayed cable, a cracked bottom bar, or a gap under one side of the closed door.
Catching these early is easier on the door, and on your schedule, than a door that quits on a delivery day. When you call, say whether the bay is stuck open, stuck shut or still running, because that changes how urgent the visit is.
Repair visits that fit around your business
A jammed bay door holds up trucks, staff and customers. Tell us the door type, its size if you know it, the operator brand and what the door is doing. That helps us come prepared.
We answer 24/7, so a door that fails after closing time can still be called in that night. Planned repairs can be set for before you open or after the last delivery.
At the door, we check the whole system before quoting: springs, cables, guides, the operator and the safety devices. You get the repair and the price in plain words before any work. The estimate is free. A site with several doors can have each one looked at during the same visit.
Keeping staff safe around heavy doors
Commercial doors weigh more than home doors, and their springs hold far more tension. Staff should never climb on the curtain, kick the bottom bar loose, or try to wind or unwind a roll-up spring. Spring work on a barrel is for us.
Don’t drive a forklift or truck under a door that isn’t fully open, and don’t keep running a door with a frayed cable or a blinking photo eye. Keep pallets and stock out of the door’s path, so the safety devices are not blocked.
If the operator fails and the door has to open, use the chain hoist or the manual release only as the operator’s manual describes. If the door won’t move by hand, stop and call us. Forcing it can snap a cable or strip the hoist.
When a commercial door or operator is done
Some doors are past repair: slats torn through, a curtain folded by a truck, or an operator with a burned-out motor. Then we can install a new door or operator, hurricane-rated commercial doors included, and help with the permit paperwork the city or county asks for.
When a door is past saving, we say so plainly, and we keep the one you have running as long as a repair makes sense. Our answer on when a repair stops making sense explains how to weigh it.
We repair commercial doors at warehouses in Hialeah and Doral, at shops and service bays in Miami Gardens and Miami Lakes, and at businesses across Miami and Coral Gables. Shops along Federal Highway in Dania Beach and condo towers in Aventura are on the list too.
How it works
- Call with the detailsTell us the door type, whether it is stuck open or shut, and the operator brand if you know it.
- Agree on a timeWe confirm a visit time by phone that works around your deliveries and opening hours.
- Inspect and quoteWe look over the whole door and its motor, then explain the repair and its price.
- Repair and cycle testAfter the repair, we run the door through full cycles and test both safety sensors and the reversing edge.
