What a Garage Door Balance Problem Looks Like

A balanced door feels almost weightless when it is released from the opener. The springs carry the load. When balance is off something is working harder than it should.

Signs of a balance problem

• The door opens slowly or in a jerky way.
• The door slams down or drops fast near the bottom.
• The opener strains or stops partway.
• The door drifts up or down when it is stopped midway.
• One side moves faster than the other.
• You hear popping or groaning as it moves.

Common causes

• Springs that have lost tension with age.
• A broken spring.
• Cables that are worn or uneven.
• Weight added to the door. Insulation or windows or heavy paint can all add weight.
• Track or roller problems that add drag.

Why it matters

An unbalanced door puts extra load on the opener. It also makes the springs work harder. Over time that shortens the life of both. Read what happens when a broken spring strains the opener. The page on how long garage door springs last explains the wear.

What not to do

Do not try to adjust the springs yourself. A technician checks balance with the door disconnected from the opener and uses the right tools. Do not keep forcing a door that will not move.

What to do

Note what you see and hear. Stop using the door if it drops fast or sits crooked. Call for help. Our page on garage door spring repair covers what we check.