Spring repair in Holladay, Utah

Elevation is the quiet driver: Holladay's 4,429 feet buy it 89.4 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 Holladay 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 Holladay spring calls cluster — 91% of the year's freeze–thaw days here fall between November and March.

This is mature housing — half the homes in Holladay were standing by 1966 — so most garages have replaced springs once or twice already. A never-replaced set here is living on borrowed time well past the local 5–7 years.

The 25,000-cycle upgrade adds $80 to $150 to a replacement and multiplies expected life by roughly 2.5. At Holladay's 89.4 cycles a year of thermal fatigue, that arithmetic tilts firmly toward the upgrade — it converts a 5-to-7-year spring into one that outlasts most ownerships, and it avoids paying the call-out twice.

Fit them as a matched pair, sized to the door's measured weight — in this climate an undersized bargain spring is the shortest-lived spring of all.

The measurements shift town by town: Millcreek runs 88.2 freeze–thaw cycles and 5–7 years of spring life; Cottonwood Heights runs 93.8 freeze–thaw cycles and 5–7 years of spring life; and Murray runs 85.9 freeze–thaw cycles and 5–7 years of spring life.

This page runs on Holladay's numbers (89.4 freeze–thaw cycles, 1966 median build, 4,429 ft of elevation) — close to the neighbours', never identical, which is exactly the point of measuring per city.