Garage Door Shaking While Opening in Chattanooga

**Worn or flat-spotted rollers** bounce in the tracks and shake the entire door. Nylon 13-ball replacements solve it permanently.

**Loose hinge or strut bolts** let panels flex independently. Common after 5+ years of vibration.

**Track out of plumb** by even 1/8 inch causes the rollers to bind and the door to shake.

**Unbalanced spring tension** (one spring weaker than the other on a two-spring system) pulls one side harder than the other.

**Bent track at a hinge joint** from a bumper tap or settling foundation.

$129 service includes full hinge and strut tightening, track plumb check and re-shim, full lube service, roller inspection, and spring balance verification. Most doors run smooth and quiet by the time we leave the driveway.