Published 2026-05-30 · Dallas Garage Door
Torsion Springs vs Extension Springs: What's on Your Door
Quick answer: Dallas garage doors use either torsion springs (a single horizontal bar above the door) or extension springs (long coils along the tracks). Torsion systems are found on most two-car doors and newer homes in Plano, Richardson, and North Dallas, while extension springs appear on older single-car garages, especially in East Dallas and older Irving neighborhoods. Torsion springs cost $200–$400 for a pair to replace and last 10,000–20,000 cycles; extension springs run $120–$250 but wear faster in Dallas's heat.
How to Tell Which Springs You Have
Open your garage door halfway and look above it. If you see a single thick metal bar running horizontally across the top with one or two wound springs on it, you have a torsion system. If you see long, stretched coils running parallel to the horizontal tracks on both sides of the door, those are extension springs.
Torsion springs sit on a torsion tube directly above the closed door, usually mounted to the header wall. Extension springs hang vertically when the door is closed and stretch out as the door opens. Most two-car doors in Dallas use torsion springs because they balance heavier doors more evenly. Single-car doors built before 2000 in neighborhoods like Lakewood, Old East Dallas, and parts of Irving often still run on extension springs.
If you're uncertain, the cable routing is another clue. Torsion systems have cables that wrap around drums at each end of the spring bar. Extension springs attach directly to the track brackets with safety cables running through the center of each spring coil.
Why Torsion Springs Became the Standard
Torsion springs handle heavier doors and provide smoother, quieter operation. They mount above the door instead of alongside the tracks, which frees up ceiling space in garages that double as workshops or storage areas. In Dallas's summer heat (regularly 95–100°F in July and August), torsion springs wear more predictably because the coil tension distributes stress evenly across the entire spring length.
Extension springs stretch and contract with every cycle, which accelerates metal fatigue in high-temperature environments. Dallas County sees 200+ days per year above 80°F, and garage interiors without climate control can reach 120°F. That heat cycling shortens extension spring life to 7,000–10,000 cycles compared to 10,000–20,000 for torsion springs. Builders in newer developments like Frisco, McKinney, and West Plano install torsion systems on nearly all doors as standard practice.
Safety is another factor. Extension springs under tension can snap and whip across the garage if a safety cable isn't installed or maintained. Torsion springs stay contained on the torsion bar when they break. Most insurance and building code updates since the 1990s favor torsion designs, which is why you'll find them on homes built in the 2000s and later across Richardson, North Dallas, and Garland.
Conversion from Extension to Torsion Springs
If your door currently uses extension springs, you can convert to a torsion system. The process involves installing a torsion tube, spring, drums, and new cables. In Dallas, this conversion runs $350–$600 depending on door size and whether the header bracket needs reinforcement. It's a common upgrade when homeowners replace an opener or repair a broken extension spring on an older door.
The main requirement is headroom. Torsion systems need at least 10–12 inches of clearance above the top panel when the door is closed. Many older single-car garages in East Dallas and Irving have low ceilings or finished drywall that limits this space. A technician can measure your setup and confirm whether a conversion is possible without major framing changes.
Homes with insulated two-car doors, carriage-style overlay panels, or motors over ¾ horsepower almost always benefit from conversion. The torsion system reduces vibration, operates more quietly, and eliminates the need for two separate springs that can wear at different rates. If you're already paying $150–$250 to replace both extension springs, the incremental cost to convert is often justified by the longer lifespan and improved performance.
Spring Replacement Cost and Lifespan in Dallas
Torsion spring replacement costs $200–$400 for a matched pair, including labor and a standard 10,000-cycle warranty. Extension springs cost less up front ($120–$250 for both sides) but need replacement more frequently. A two-car door cycled twice daily will wear out extension springs in 10–12 years versus 15–20 years for torsion springs, so lifetime cost often favors torsion.
Dallas's climate accelerates wear. Garage temperatures above 100°F in summer and occasional freezes in January and February cause expansion and contraction that stresses spring coils. Torsion springs use oil-tempered steel that tolerates temperature swings better than the drawn wire used in many extension springs. Homes in Plano, Frisco, and North Dallas with climate-controlled garages see longer spring life across both types.
Annual tune-ups ($90–$150) include spring inspection, lubrication, and tension adjustment. Catching a worn spring before it breaks prevents the door from slamming shut and damaging panels, tracks, or the opener. Most residential springs show visible wear, gaps between coils, rust, or stretched sections, before they fail completely.
Frequently asked
Can I replace just one torsion spring or do I need both?
You can replace just the broken spring, but most technicians recommend replacing both at once. If one spring broke, the other has seen the same number of cycles and similar wear. Replacing both costs $200–$400 and prevents a second service call in 6–12 months when the older spring fails.
Why did my extension spring break in the middle of summer?
Dallas heat causes metal to expand, and repeated heating cycles fatigue the spring wire faster. Garage interiors above 110°F put extra stress on extension springs, which stretch and contract fully with each door cycle. Torsion springs handle heat better because the coil winds and unwinds without full elongation.
Is it worth converting my 1980s single-car door to torsion springs?
If you plan to keep the door for another 10+ years and have the required headroom, conversion ($350–$600) makes sense. You'll get quieter operation, longer spring life, and better resale value. If the door panels are rusted or the tracks are bent, a new door installation ($1,000–$2,800) with a torsion system may be a better investment.
How do I know if my torsion spring is about to break?
Look for visible gaps between coils, rust spots, or a stretched appearance near the center of the spring. You may also notice the door feels heavier when lifting manually or the opener struggles to raise it fully. A $90–$150 tune-up includes a spring inspection and can catch wear before failure.
Can I install torsion springs myself to save money?
Torsion springs store 200+ pounds of torque and require specialized winding bars and knowledge of exact cable drum positioning. Incorrect installation can cause the door to bind, fall, or snap cables. Most Dallas homeowners hire a licensed technician for safety and warranty coverage. Extension springs are slightly less dangerous but still risky without the right tools.