How to make sure a garage door is balanced?

To make sure a garage door is balanced, which is essential for safe operation, even movement, and long opener life, you should perform a manual balance test after disconnecting the opener and inspecting springs, cables, and tracks. First, close the garage door fully and pull the red emergency release cord hanging from the trolley to disconnect the opener carriage, allowing manual operation. Then, manually lift the door with one hand; a balanced door should lift smoothly with moderate effort, not extremely heavy, and should not bind or jerk. Lift the door halfway open, about three to four feet off the ground, and let go; a balanced door will stay in place, hovering at halfway without falling down or rising up on its own. If the door falls down, the springs are weak and need more tension, and if it rises up, springs are over-tensioned. The door should also stay level, not crooked, indicating cables have equal tension. Inspect springs for breakage, cables for equal winding, and tracks for alignment. Lubricate rollers and hinges with silicone lubricant. If door fails balance test, do not adjust torsion springs yourself unless experienced, as they store high tension and require winding bars; call professional to adjust tension costing 75 to 150 dollars for service call. Balanced door extends opener life and prevents off-track issues. Test balance every six months.