January 10, 2026 7 min read Garage Door Sumner Team
Garage door springs are the unsung heroes of your garage door system. These powerful components do the heavy lifting.literally.counterbalancing the weight of your door so it can open and close smoothly. Understanding how they work and when they need attention can help you maintain a safe, functional garage door.
Torsion springs are mounted horizontally above the garage door opening. They work by twisting and storing energy as the door closes, then releasing that energy to help lift the door when opening. Torsion springs are the preferred choice for most modern installations because they offer:
- Smoother, more controlled door movement, Longer lifespan (typically 15,000-20,000 cycles) - Better balance and less stress on the door and opener, Easier adjustment when needed
Most residential garage doors use one or two torsion springs, depending on the door's weight. Heavier double-car doors typically require two springs to handle the load safely.
Extension springs are mounted on either side of the door, running parallel to the horizontal tracks. They stretch and contract as the door moves, storing energy when extended (door closed) and releasing it to help lift the door.
Extension springs are more common in older installations and have some drawbacks:
- Shorter lifespan (typically 10,000 cycles) - More components that can wear or fail, Greater safety risk if a spring breaks (though safety cables should contain the broken spring) - Less smooth door operation
If your home has extension springs, consider upgrading to torsion springs when replacement time comes.
Garage door springs don't last forever. Here are warning signs that yours may need inspection or replacement:
Visible wear or damage: Look for gaps in the coils, rust, or stretched sections. Any visible damage means the spring is compromised.
Door feels heavy: If your door is harder to lift manually than it used to be, the springs may be losing tension. A properly balanced door should feel light and stay in place when opened halfway.
Loud bang from the garage: A broken spring often announces itself with a loud noise, like a gunshot or firecracker. If you hear this, don't try to operate the door.call for professional service.
Door opens unevenly: If one side of the door rises faster than the other, you may have a broken or weakened spring on one side.
Door won't stay open: A door that slams shut or won't stay in the open position has a spring balance problem.
We cannot stress this enough: garage door spring replacement is dangerous and should only be performed by trained professionals. Here's why:
Extreme tension: Torsion springs are under tremendous tension.enough to cause serious injury or death if they snap or are improperly handled. Even a "dead" spring can have residual tension.
Specialized tools required: Proper spring replacement requires winding bars, vise grips, and other specialized tools. Improvising with screwdrivers or other tools is extremely dangerous.
Precise calibration: Springs must be properly sized and tensioned for your specific door. An improperly balanced door will wear out faster and may not operate safely.
Code compliance: Professional installations meet local building codes and manufacturer specifications, which is important for warranty coverage and home insurance.
While you shouldn't attempt spring repairs yourself, there are things you can do to maximize spring lifespan:
Regular lubrication: Apply a light coating of white lithium grease or silicone spray to the springs every few months. This reduces friction and prevents rust. Avoid using WD-40, which can actually attract dirt.
Visual inspections: Periodically look at your springs for signs of rust, gaps, or wear. Catching problems early can prevent a sudden failure.
Balance testing: Disconnect your opener and manually lift the door halfway. It should stay in place. If it falls or rises, the springs may need adjustment.
Professional tune-ups: Annual maintenance by a qualified technician can catch developing problems and adjust spring tension before failure occurs.
The average garage door opens and closes about 1,500 times per year. That means torsion springs typically last 10-15 years, while extension springs may only last 7-10 years. However, these lifespans can vary based on:
- Quality of the original springs, Weight of your door, Climate conditions (temperature extremes stress springs) - Maintenance habits
When your springs do need replacement, we recommend upgrading to high-cycle springs if you plan to stay in your home long-term. These premium springs cost a bit more upfront but can last 25,000-50,000 cycles.potentially the life of your home.
At Garage Door Sumner, our technicians handle spring replacements safely every day. We carry a full inventory of springs for all door types and sizes, allowing us to complete most replacements in a single visit. If you're experiencing spring problems or just want a professional assessment, give us a call at 360-837-6452.