Understanding Garage Door Springs: Types, Lifespan, and Replacement Signs
2024-01-15 7 min read Mike Martinez
# Understanding Garage Door Springs: Types, Lifespan, and Replacement Signs
Your garage door springs are among the most critical components of your entire garage door system. These powerful mechanical devices bear the tremendous weight of your door.often 150 to 250 pounds or more.making it possible for you to open and close the door with minimal effort. Understanding how these springs work, recognizing when they're failing, and knowing when to call for professional help can save you money, prevent injuries, and extend the life of your garage door system.
The Two Main Types of Garage Door Springs
Torsion Springs
Torsion springs are mounted horizontally above the garage door opening on a metal shaft. When the door closes, cables attached to the bottom corners of the door cause the springs to wind up and store mechanical energy. When you open the door, this energy is released to help lift the heavy door. Torsion springs are generally considered more durable and safer than extension springs because they are contained and controlled by the shaft and cable system.
Modern residential garage doors typically use one or two torsion springs, depending on the door's weight and size. Double-car garage doors often require two springs to handle the increased weight. These springs are rated for a specific number of cycles.typically 10,000 to 20,000 cycles, where one cycle equals one complete opening and closing of the door.
Extension Springs
Extension springs are mounted on either side of the door, running parallel to the horizontal tracks. These springs stretch and contract as the door moves, storing energy when stretched (door closed) and releasing it as the door opens. While extension springs are generally less expensive than torsion springs, they can pose a greater safety risk if they break, as they can snap violently. For this reason, extension springs should always be equipped with safety cables that run through the center of the spring.
How Long Do Garage Door Springs Last?
The lifespan of your garage door springs depends on several factors, including the quality of the springs, how often you use your garage door, and the climate conditions in your area. On average, standard-duty torsion springs last about 7 to 10 years with typical residential use (2-4 cycles per day). High-cycle springs, designed for heavier use, can last 15 to 20 years or more.
Here in Connecticut, our harsh winters can accelerate spring wear. Cold temperatures make metal more brittle and less flexible, increasing stress on the springs during winter months. Regular lubrication and maintenance can help mitigate this effect and extend spring life.
Warning Signs Your Springs Need Replacement
Recognizing the warning signs of failing garage door springs can help you avoid the inconvenience and potential danger of a sudden spring failure. Watch for these indicators:
Visible Wear or Damage: Look for signs of rust, corrosion, or stretched coils. Gaps in the spring coils are a clear indication that the spring has lost tension and needs replacement.
Door Feels Heavy: If your garage door suddenly feels much heavier when lifting manually, the springs may be losing their strength. A properly balanced door should lift easily with minimal effort.
Uneven Movement: If the door rises crookedly or one side seems to lag behind the other, you may have a spring problem on one side of the door.
Loud Bang: If you hear a loud bang from your garage when you're not operating the door, a spring may have broken. This is often described as sounding like a gunshot or firecracker.
Door Won't Stay Open: A garage door that won't stay open when lifted manually indicates that the springs aren't providing enough counterbalance force.
Why Professional Replacement Is Essential
Garage door springs are under extreme tension and can cause serious injury or death if handled improperly. We strongly recommend against DIY spring replacement. Professional technicians have the training, tools, and experience to safely remove and install garage door springs.
At Garage Door Norwich, our factory-trained technicians perform spring replacements daily. We use high-quality springs rated for your specific door and can complete most replacements within an hour. We also recommend replacing both springs at the same time (for two-spring systems), even if only one has broken.the other is likely near the end of its lifespan and could fail soon.
If you're experiencing any of the warning signs mentioned above, don't wait for a complete failure. Contact us at (203) 902-3710 for a professional inspection and estimate.