Start here
Quick, low-risk steps
- Stop using the door and keep clear of springs, cables, and bottom brackets.
- Look for a visible gap in the torsion spring or a separated extension spring.
- Check if the door feels unusually heavy when manually lifted (only if safe to do so).
- Record the door brand, size, and spring type for a repair quote.
- Contact a qualified garage door professional for spring replacement.
Signs of a Broken Spring
A broken torsion spring often makes a loud noise like a firecracker. You may see a gap in the spring coil above the center of the door. The door might open only a few inches or feel very heavy when you try to lift it manually.
Extension springs run along the horizontal tracks. When one breaks, it may hang down or look stretched. The door may be crooked or jammed in the tracks. If you see a slack cable, the spring is likely broken.
- Loud bang from the garage
- Visible gap in a torsion spring
- Door feels extremely heavy
- Crooked or uneven door movement
- Slack or dangling cable
Why Springs Break
Springs have a limited cycle life. Each time the door opens and closes, the spring winds and unwinds. Over years, metal fatigue causes the spring to snap. Rust, poor maintenance, and extreme temperature changes can shorten spring life.
A spring that is too small for the door weight will wear out faster. Professional installers calculate the correct spring size and cycle rating for your door. Regular lubrication and inspection can help you plan for replacement before a sudden break.
- Normal wear from daily cycles
- Rust and corrosion
- Incorrect spring size or type
- Lack of lubrication
- Extreme temperature swings
What to Do When a Spring Breaks
First, do not try to open or close the door with the opener or by hand. The door is very heavy without the spring's help. Disconnect the opener if possible, but only if you can do so without standing under the door.
Keep children and pets away from the garage. Do not attempt to hold the door up with a clamp or prop. Call a garage door repair company that has experience with spring replacement. They will replace both springs if you have a two-spring system to ensure balanced operation.
- Do not operate the door
- Disconnect opener only if safe
- Keep area clear
- Do not prop the door open
- Call a professional for replacement
Professional Spring Replacement
A qualified technician will measure your door weight, height, and track radius to select the right springs. They will install the springs with the correct winding and tension. The job includes balancing the door and testing the safety reversal system.
Ask about the spring cycle rating. Higher-cycle springs last longer but cost more. A reputable pro will explain the options and provide a warranty on parts and labor. Never accept a repair that uses only one spring on a two-spring door.
- Door weight and size measurement
- Correct spring selection
- Professional winding and tensioning
- Door balance and safety test
- Warranty on springs and labor
Take this with you
Evidence and scope checklist
- Door brand and model
- Door size (width and height)
- Spring type (torsion or extension)
- Number of springs
- Spring cycle rating offered
- Parts warranty length
- Labor warranty length
- Quote includes both springs if applicable
- Haul-away of old springs
- Safety reversal test after repair
Common questions
What homeowners ask next
Can I open the door with a broken spring?
No. The door is extremely heavy and can fall suddenly. You could be injured or damage the door further. Wait for a professional.
Should I replace both springs if only one is broken?
Yes. The other spring has the same wear and will likely break soon. Replacing both ensures balanced operation and saves labor costs later.
How long do garage door springs last?
Spring life is measured in cycles, not years. A standard spring may last about 10,000 cycles. A professional can recommend a higher-cycle spring for longer life.
Evidence
Sources used for this guide
Research checked July 31, 2026
- Automatic residential garage-door operatorsU.S. Consumer Product Safety Commission
Entrapment and reversal safety; never bypass sensors or high-tension hardware.
Optional next step
Need an on-site professional?
Use the guide and worksheet first so you can describe the situation and compare the full scope. A referral is optional; you can also contact a licensed local provider directly.
We have not enabled a provider route for this site. Use the checklist to contact and verify local providers yourself; urgent hazards should go to the appropriate emergency or public service.