Garage Door Springs
Springs are the most critical — and most dangerous — component of your garage door system. Learn about the different types and why professional service is essential.
Educational resource —Spring sizes, wire gauge, length, inside diameter, cycle rating, and setup vary by door. U1 Garage Doors can provide standard and custom-order springs based on your door's weight, height, track setup, and usage needs. These pages are shown to help you understand common options — not as a fixed product catalog.
Safety Warning
Garage door springs are under extreme tension and can cause severe injury or death if handled improperly. Never attempt to replace or adjust garage door springs yourself. Always hire a licensed professional.
Types of Garage Door Springs
Torsion Springs
Torsion springs are mounted on a metal shaft above the garage door opening. They use torque (twisting force) to lift the door. Most modern residential garage doors use torsion springs because they provide smoother, more controlled operation.
Extension Springs
Extension springs are mounted on both sides of the door, running parallel to the horizontal tracks. They stretch and contract to help lift the door. While still common in older installations, they are being replaced by torsion springs in many modern setups.
High-Cycle Springs
High-cycle springs are torsion springs rated for 25,000 to 100,000+ cycles (one cycle = one open + close). Standard springs are rated for about 10,000 cycles. High-cycle springs last significantly longer, reducing the frequency and cost of replacement.
Why Spring Size Matters
Every garage door has a specific weight, height, and track configuration. Springs must be precisely matched to these measurements. A spring that is too weak will not fully support the door, causing the opener to work harder and wear out faster. A spring that is too strong can make the door fly open uncontrollably.
Why a Door Can Damage an Opener if Springs Are Wrong
Your garage door opener is designed to move the door — not to lift its full weight. The springs do the heavy lifting by counterbalancing the door. When springs are broken, worn, or the wrong size, the opener has to compensate by working much harder than it was designed to. This leads to overheating, stripped gears, and premature motor failure.
Why Professional Balancing Matters
After new springs are installed, the door must be properly balanced. A balanced door should stay in place when opened halfway and released. If it slides up or down on its own, the tension is wrong. An unbalanced door puts uneven stress on all components — springs, cables, brackets, tracks, and the opener — accelerating wear across the entire system.
Torsion Springs vs Extension Springs
Understanding the key differences helps you know what system your garage uses.
| Feature | Torsion Springs | Extension Springs |
|---|---|---|
| Location | Above the door opening | Along the horizontal tracks (both sides) |
| How They Work | Twisting (torque) force | Stretching force |
| Operation | Smoother, more controlled | Can be less even |
| Safety | Contained on shaft (safer failure) | Requires safety cables (can fly if broken) |
| Common Use | Most modern installations | Older installations, single-car garages |
| Lifespan | 10,000-100,000 cycles | 10,000-15,000 cycles typical |
Need Spring Replacement?
Our team can help you choose the right option for your home and budget.
Not sure what fits your door? We'll inspect the setup and explain your options before work begins.