How Does a Garage Door Spring Work?

Garage doors are a marvel of engineering, offering convenience and security for our homes. One crucial component that enables the smooth operation of a garage door is the spring system. But have you ever wondered how does a garage door spring work? In this article, we’ll delve into the mechanics of garage door springs, their types, and their vital role in effortlessly lifting and lowering your garage door.

How Does Garage Door Spring Work

Understanding Garage Door Springs

The Role of Garage Door Springs

Garage door springs play a pivotal role in the operation of your garage door. Their primary function is to counterbalance the weight of the door. Without springs, lifting a garage door manually would be an incredibly challenging task due to the door’s weight.

Types of Garage Door Springs

There are two main types of garage door springs:

  1. Torsion Springs: Torsion springs are mounted horizontally above the garage door opening. They work by winding and unwinding, storing and releasing energy as the door is raised and lowered. Torsion springs are known for their durability and smoother operation.
  2. Extension Springs: Extension springs are located vertically on both sides of the door, often alongside the horizontal tracks. They extend and contract as the door moves, providing the necessary counterbalance. Extension springs are typically found in older garage door systems.
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How Garage Door Springs Work

Extension Springs:

When you activate your garage door opener or manually lift the door, tension is applied to the extension springs. As they stretch, they store energy. This stored energy assists in raising the garage door, making it easier to lift. When you close the door, the springs contract, releasing their stored energy, which helps lower the door smoothly.

Torsion Springs:

Torsion springs work differently but achieve the same result. When the garage door is closed, torsion springs are in a relaxed state. As you lift the door, a shaft rotates, causing the springs to wind up. This winding action stores energy in the springs. When you release the door, the springs unwind, releasing the stored energy and aiding in the door’s controlled descent.

Factors Affecting Garage Door Spring Lifespan

Several factors can impact the lifespan of your garage door springs, including:

  1. Frequency of Use: The more often you open and close your garage door, the quicker the springs may wear out.
  2. Quality of Springs: High-quality springs tend to last longer than lower-quality ones.
  3. Maintenance: Regular lubrication and inspection can prolong spring life by reducing friction and identifying issues early.
  4. Climate: Extreme temperatures can affect the performance and longevity of garage door springs.
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Signs of Worn or Broken Springs

Knowing the signs of worn or broken springs is crucial for your safety and the proper functioning of your garage door. Signs include:

  • A visibly broken spring: If you see a gap in the spring or any signs of breakage, it’s time for a replacement.
  • Uneven door movement: If your garage door appears lopsided or operates unevenly, it could indicate a spring issue.
  • Excessive noise: Squeaking, grinding, or popping sounds when operating the door might suggest spring problems.


Understanding how does a garage door spring work is essential for appreciating the convenience and safety of your garage door. These springs, whether torsion or extension, serve as the backbone of the system, making it possible for you to easily open and close your garage door. Regular maintenance and timely replacement of worn or damaged springs are essential for ensuring the continued smooth operation of your garage door while safeguarding your property and loved ones.

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