Certified Building Contractor CBC1265305 · Certified Roofing Contractor CCC1334811
Why is my garage door suddenly too heavy to lift by hand?
A straight answer from a Florida state-certified contractor — then what you can check yourself and when to call. Free estimate: (954) 620-7812.
A garage door that suddenly feels too heavy almost always has a broken or worn-out spring, or a lift cable that has slipped or snapped. The springs carry nearly all of the door's weight. When they stop working, you are lifting the full weight of the door yourself, which is more than most people can safely manage.
The nuance is whether this is a repair or a replacement. A spring, cable or roller fix is usually a hardware repair. If the door is also dented, bent or not wind-rated, replacing it is often the better route, and that kind of replacement typically needs a permit.
Why it happens
A garage door is balanced by either torsion springs (a coiled spring on a bar above the door) or extension springs (long springs along the horizontal tracks). Each time the door cycles, the springs wind and unwind, and the metal eventually fatigues and snaps. When one breaks, the door can feel as if it weighs as much as a car hood and may rise only a few inches before stopping.
Cables are the other common cause. They connect the bottom corners of the door to the spring system, and they can fray, jump off the drum or pull loose. If the door hangs crooked, or one side is higher than the other, a cable is a likely suspect. Florida's humidity and, near the coast, salt air corrode springs, cables, rollers and hinges. That wear can bring on a failure sooner than you would expect.
Less often, a bent track or a seized roller makes the door feel heavy or stuck. This usually shows up as scraping, binding or a door that jams partway, rather than a sudden jump in weight.
What you can check yourself
Look at the spring from a distance
On a torsion system, a broken spring often shows a visible gap in the coil above the door. Look only. Do not touch the spring, the cables or the brackets at either end, because they are under high tension.
Listen for what happened
A loud bang from the garage, sometimes heard hours before anyone noticed, often means a spring let go. Cables and springs can fail without any warning sound too.
Check for slack or fraying
Look for a cable hanging loose, off its drum, or visibly frayed. Also note whether the door sits crooked in the opening.
Leave the opener out of it
Do not keep running the opener against a heavy door. It can strain the motor and damage the door. If the door is closed, leave it closed and use another entrance.
Do not stand under a raised door
If the door is partly open, keep people and vehicles clear. A door with a broken spring can drop quickly, so do not pull the emergency release on a raised door.
When to call a pro
Springs and cables store a lot of energy, and replacing them is not a good DIY project. Call a pro as soon as you suspect a broken spring or cable, and also if the door is bent, off its track, or has been damaged by a storm. Garage doors are the largest opening in many homes, so a weak or damaged door matters more when high winds are forecast. We handle this work under our Florida Certified Building Contractor license, CBC1265305, which you can verify on the Florida DBPR website.
On permits, a spring, cable, roller or opener repair often does not need one. Replacing the door and its track and jamb anchorage typically does, and the local city or county building department usually inspects the anchoring. The usual path is a permit application, the work, an inspection of the fastening while it is visible, a final inspection, and permit close-out. Exact steps vary by jurisdiction, so confirm with your local building department. An unpermitted or still-open job can come up at sale, refinance or insurance renewal, and code enforcement may cite it.
Wind rating matters for replacements. In Miami-Dade and Broward counties, the High-Velocity Hurricane Zone, the door needs a Miami-Dade Notice of Acceptance (NOA) and an HVHZ-compliant installation. Elsewhere in Florida, the door needs Florida Product Approval and must meet the Florida Building Code wind requirements for your site. If you live in an HOA or condo community, check whether the association requires approval for a new door.
What a pro will do
- Diagnose the real causeWe check the springs, cables, drums, rollers, tracks and opener to find what failed and whether anything else is worn or damaged.
- Repair spring, cable, roller or trackSprings and cables are replaced with the door properly balanced. Worn rollers, bent tracks and corroded hardware are replaced at the same visit when needed.
- Repair or replace the openerIf the opener was strained or is failing, we repair or replace it and set it up to work with a properly balanced door.
- Replace with a wind-rated doorWhen the door is damaged or not rated for your location, we install a wind-rated or impact-rated door with reinforcement per its product approval.
- Handle the permitWhen the work needs a permit, we pull it under our own certification, schedule the inspections, and close the permit out at the end.
Related questions
- Can I just replace a garage door spring myself?
- We do not recommend it. Springs are under high tension and can cause serious injury if handled incorrectly. The replacement spring also has to match the door's weight and size to balance correctly.
- Does fixing a spring or cable need a permit?
- Hardware and opener repairs often do not need one, while replacing the door and its anchorage typically does. Rules vary by city and county, so confirm with your local building department.
- Is a heavy garage door a hurricane-season problem?
- A door that cannot be lifted or closed properly may be harder to secure ahead of a storm. Hurricane season runs June 1 through November 30, so it helps to sort out a heavy door well before a storm is forecast.
- How do I get a quote for a spring repair or new door?
- Call us at (954) 620-7812 or use the quote form on this page. The estimate is free, and we put the scope in writing before work starts.
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