Garage Door Shakes When Opening
Why does my garage door shake and shudder when it opens?
What is actually causing it
Most likely first, based on what our crews find on the call.
01Worn rollers or failed roller bearings
Rollers that no longer roll drag and skip along the track, and the whole door judders. The most common cause and the easiest to confirm — a flat-spotted or wobbling roller is visible at rest.
Do not attempt this yourself. It is under spring or cable load and it injures people every year — this one is a licensed-technician job.
02Bent or misaligned track
A track that is not parallel to the door pinches at one point in travel. The shudder happens at the same height every cycle.
Do not attempt this yourself. It is under spring or cable load and it injures people every year — this one is a licensed-technician job.
03Loose hinges and hardware
Backed-out hinge screws let sections move independently, and the door walks as it lifts. Snugging accessible hinge screws is reasonable homeowner maintenance.
Safe to check yourself, with the door closed and the opener unplugged.
04Door out of balance
One spring weaker or broken, or springs mismatched to the door, and the load transfers unevenly on every lift. A balance test tells you in ten seconds, but it should be done by someone who can safely take the door off the opener.
Do not attempt this yourself. It is under spring or cable load and it injures people every year — this one is a licensed-technician job.
05Worn spring shaft bearings or bent shaft
A shaft that wobbles in its bearings shakes the whole assembly and chews the bearings faster as it goes.
Do not attempt this yourself. It is under spring or cable load and it injures people every year — this one is a licensed-technician job.
06Opener rail loose at the header or the joists
If the rail visibly flexes when the door starts moving, the mounting is the problem and the door is just showing you.
Do not attempt this yourself. It is under spring or cable load and it injures people every year — this one is a licensed-technician job.
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Frequently asked questions
Why does my garage door shake and shudder when it opens?
Is this safe for me to fix myself?
How much will the repair cost?
Are you licensed?
Describe the noise. We will tell you what broke.
Most calls are diagnosed in under two minutes, with a price range before anyone drives out.
CA-GARAGEDOOR California — California contractor licence CSLB #1098234. Licensed, bonded and insured. 1-year parts & labor.