Spring repair in Eagle Mountain, Utah

Eagle Mountain sits at roughly 4,922 feet, and the 102.1 annual freeze–thaw crossings that come with that elevation fatigue spring steel independently of how often the door runs. Each crossing contracts and expands the coil; the damage accumulates whether the door cycles twice a day or ten times.

There is a second cold effect: freezing temperatures make spring steel more brittle, so the fatigued spring picks the coldest lift of the day to fail. With 86% of Eagle Mountain's freeze–thaw days packed into November through March, the failure season is not a mystery.

Housing age sharpens it: half the homes in Eagle Mountain were standing by 2012, which puts a large share of original builder-grade springs inside their first failure window right now.

For $80 to $150 over standard, a 25,000-cycle spring runs about 2.5 times longer. In a 102.1-cycle climate like Eagle Mountain's that is the rare upsell worth taking: the standard spring's 5–7 years means a second call-out; the upgrade generally does not.

Always as a pair, sized to the measured door weight. An undersized "bargain" spring fails fastest of all in a climate like this one.

The measurements shift town by town: Saratoga Springs runs 96.8 freeze–thaw cycles and 5–7 years of spring life; Lehi runs 96.4 freeze–thaw cycles and 5–7 years of spring life; and Bluffdale runs 97.6 freeze–thaw cycles and 5–7 years of spring life.

Against that backdrop, Eagle Mountain holds 102.1 cycles at 4,922 ft with a 2012 median build year — the specific inputs behind every figure above.