Spring repair in Provo, Utah

Elevation is the quiet driver: Provo's 4,551 feet buy it 89.2 freezing crossings a year, and each one flexes the coil like a small unpaid cycle. A door used twice a day and a door used ten times age differently — but both springs live in the same Provo winter.

Cold adds a second effect: low temperature reduces the fracture toughness of spring steel, so a fatigued spring is likeliest to let go on the first lift of a freezing morning. That is when Provo spring calls cluster — 93% of the year's freeze–thaw days here fall between November and March.

And this is older stock — half the homes in Provo were standing by 1976 — so most doors are on their second or third set of springs. If yours has never been replaced, it is running well past this climate's 5–7 year expectancy.

Upgrading to 25,000-cycle springs costs $80 to $150 more and roughly multiplies life by 2.5. With 89.2 freeze–thaw cycles a year working on the steel in Provo, 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.

The measurements shift town by town: Orem runs 95.3 freeze–thaw cycles and 5–7 years of spring life; Springville runs 92.7 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 Provo's numbers (89.2 freeze–thaw cycles, 1976 median build, 4,551 ft of elevation) — close to the neighbours', never identical, which is exactly the point of measuring per city.