Spring repair in Lindon, Utah

At 4,659 feet, Lindon takes 98.5 freeze–thaw crossings a year, and every one of them works the spring steel — contraction, expansion, repeat — whether or not the door moves at all. Usage adds cycles; the climate adds fatigue on its own clock.

Brittleness is the accomplice — cold steel fractures where warm steel bends, which is why the break so often happens on the first morning lift, and why Lindon's calls track its winter: 91% of the year's freezing crossings land between November and March.

half the homes in Lindon were standing by 1994; the stock is a mix of originals and replacements, which staggers the failures street by street rather than season by season.

Upgrading to 25,000-cycle springs costs $80 to $150 more and roughly multiplies life by 2.5. With 98.5 freeze–thaw cycles a year working on the steel in Lindon, the upgrade turns a 5–7-year spring into one most owners never replace again — one invoice instead of two.

Whatever the rating, it goes on as a pair and it gets sized to the actual door weight. Cut-price undersized springs fail fastest exactly where winters are hardest.

For context around Lindon: Pleasant Grove runs 99 freeze–thaw cycles and 5–7 years of spring life; Orem runs 95.3 freeze–thaw cycles and 5–7 years of spring life; and Vineyard runs 94.3 freeze–thaw cycles and 5–7 years of spring life.

This page runs on Lindon's numbers (98.5 freeze–thaw cycles, 1994 median build, 4,659 ft of elevation) — close to the neighbours', never identical, which is exactly the point of measuring per city.