How to Fix a Broken Garage Door Spring: Step-by-Step Instructions

Broken garage door springs are not a DIY job—correct spring sizing and winding are critical; replace both springs, use proper tools, and hire a pro to avoid crashes, flying bars, and serious injury.

By Eric Vance

A broken garage door spring is one of the most common and dangerous issues homeowners face. This guide explains how to identify the problem, understand your repair options, and safely approach replacement while knowing when it is best to call a professional.

What Type of Garage Door Spring Do You Have and Why It Matters

You likely have either a torsion spring or an extension spring, and the repair process depends entirely on which system is installed.

Torsion springs are mounted above the garage door and use controlled torque to lift the door evenly. Extension springs run along the sides of the door and stretch under tension. Torsion systems are more controlled and durable, while extension systems require additional safety components.

Understanding the difference is critical because torsion springs require precise tensioning, while extension springs involve managing stretch force and cable systems. If you are unsure, professional garage door spring repair ensures the correct approach.

What Are the Clear Signs Your Garage Door Spring Is Broken or Failing

A broken spring usually presents immediate and obvious symptoms.

The door may not open at all, may lift unevenly, or may feel extremely heavy when operated manually. You may also hear a loud snapping sound when the spring breaks.

Other warning signs include visible gaps in a torsion spring, stretched or hanging extension springs, or increased noise during operation. Addressing these early helps prevent additional damage to your door system.

Is It Safe to Fix a Garage Door Spring Yourself

Fixing a garage door spring yourself is possible but carries significant risk due to the stored tension in the system.

Garage door springs operate under extreme force. Improper handling can lead to serious injury. According to OSHA general safety guidance, uncontrolled mechanical energy is a major hazard in maintenance work.

Most homeowners are better served by hiring a professional for garage door spring replacement, especially when dealing with torsion systems.

What Tools and Safety Equipment Are Required

Proper tools and safety gear are mandatory before attempting any repair.

You will need winding bars (for torsion springs), locking pliers, a socket set, safety glasses, gloves, and a sturdy ladder. Extension spring repairs also require safety cables if they are not already installed.

Using incorrect tools, such as screwdrivers instead of winding bars, is one of the most common causes of injury.

How Do You Safely Release Tension From a Garage Door Spring

You must fully release spring tension before removing or adjusting any components.

For torsion springs, this involves inserting winding bars into the winding cone and carefully unwinding the spring quarter-turn by quarter-turn. The garage door must be secured in place to prevent movement.

For extension springs, the door must be fully opened to reduce tension before disconnecting the springs. Failure to control tension is the most dangerous step in the process.

Step-by-Step Instructions to Replace a Torsion Spring

Replacing a torsion spring requires controlled, methodical steps.

First, disconnect the opener and secure the door. Next, unwind the broken spring completely using winding bars. Loosen the set screws and remove the spring from the torsion shaft.

Install the new spring, ensuring it matches the correct size and orientation. Reattach hardware, then carefully wind the spring to the proper tension level. Finally, test the door balance and operation.

Because precision matters, many homeowners choose professional garage door torsion spring replacement to avoid costly mistakes.

How Does the Process Differ for Extension Springs

Extension spring replacement focuses on managing stretch rather than torque.

Start by opening the garage door fully to release tension. Secure the door in place, then disconnect the spring from the track bracket and pulley system.

Install the new spring and reconnect cables, ensuring proper alignment. Safety cables should always run through the spring to prevent injury if the spring fails.

This system is simpler than torsion repair but still requires attention to detail and safety.

How Do You Choose the Correct Replacement Spring

The correct spring must match the door’s weight, height, and cycle requirements.

Using the wrong spring size can cause the door to operate unsafely or wear out components prematurely. Key factors include wire size, length, and inside diameter.

If measurements are unclear, professional guidance ensures proper selection and long-term reliability.

What Are the Most Dangerous Mistakes to Avoid

The most dangerous mistakes involve improper handling of spring tension and incorrect parts.

Common errors include using the wrong tools, failing to secure the door, installing mismatched springs, and over- or under-winding torsion springs.

Skipping safety steps or rushing the process often leads to injury or additional repair costs.

How Long Does It Take to Fix a Broken Garage Door Spring

A typical spring replacement takes one to two hours when performed correctly.

Delays can occur if the correct spring is not available, if additional components are damaged, or if the system requires rebalancing.

Professional technicians often complete the job efficiently because they carry the right parts and tools for the repair.

What Should It Cost to Replace a Garage Door Spring

Garage door spring replacement costs vary based on the type of spring and door system.

In Idaho, Utah, and Montana, homeowners can expect pricing to reflect parts, labor, and system complexity. Torsion springs typically cost more than extension springs due to their design and installation requirements.

Transparent pricing and clear explanations are essential when evaluating service providers.

How Do You Verify a Garage Door Company Is Qualified

A qualified company should demonstrate experience, clear communication, and a preventative approach.

Look for a provider that explains the repair process, offers honest recommendations, and focuses on long-term performance instead of quick fixes. Consistent service and follow-up support are strong indicators of reliability.

E.A.S.E. Construction, LLC brings over 22 years of construction experience, including 10 years specializing in garage doors, with a focus on preventative maintenance and dependable service.

Conclusion

Fixing a broken garage door spring requires precision, the right tools, and a strong understanding of safety procedures. While some homeowners attempt repairs themselves, the risks often outweigh the savings.

Working with a trusted professional ensures your door operates safely and reliably long after the repair is complete. For expert help and long-term peace of mind, schedule your garage door spring replacement with E.A.S.E. Construction, LLC today.

About the Author

Eric Vance is the founder of E.A.S.E. Construction, LLC, bringing more than two decades of hands-on construction experience and over 10 years of specialized expertise in garage door systems.

​His career began in 2003, working across nearly every phase of residential and commercial construction—from framing and carpentry to full home builds—giving him a deep, practical understanding of how garage doors integrate with the entire structure. This broad background allows Eric to provide informed, real-world guidance to customers, ensuring every door system functions safely, efficiently, and in harmony with the building around it.

​Eric spent nearly a decade working within established garage door companies, where he led commercial projects from start to finish, including estimating, site evaluations, installation, service, and customer support. That experience shaped his commitment to doing things differently—prioritizing quality workmanship, honest communication, and long-term reliability over short-term fixes.

​As the founder of E.A.S.E. Construction, Eric built the company around a preventative-first mindset, focusing on helping customers avoid costly breakdowns and maintain dependable door systems over time. His approach reflects the company’s core values of transparency, integrity, and relationship-driven service, earning trust from homeowners, businesses, and municipalities across Idaho, Utah, and Montana.