How to prevent garage door spring from breaking?

To prevent garage door spring from breaking prematurely and extend its lifespan beyond typical 10,000 cycles or 7 to 10 years, you need regular maintenance, proper balance, and environmental protection that reduces wear and rust. The most important prevention is lubricating torsion and extension springs twice yearly with silicone-based lubricant or garage door lubricant, not WD-40 which dries, spraying along coils to reduce friction and prevent rust that causes pitting and weak spots leading to breakage. Keep garage door balanced so springs not overstressed, testing balance by pulling emergency release cord and lifting door manually halfway; if door stays in place, balanced, if falls or rises, springs need adjustment by professional. Avoid overuse beyond rated cycles, as each open and close is cycle, so minimize unnecessary cycles. Keep gutters above garage clean and ensure downspouts direct water away, as overflowing gutters cause water to drip onto springs and door, causing rust and corrosion that weakens steel and leads to early breakage, especially in humid climates. Inspect springs monthly for signs of rust, gaps in coils, or wear, and replace if rusted. Install high cycle springs rated for 20,000 cycles instead of standard 10,000 when replacing, as they last twice as long. Ensure correct spring size installed for door weight and height, as undersized spring overstressed. Keep garage dry and ventilated to reduce moisture. Hire professional for annual inspection to adjust tension.