A torsion spring is not sold with an expiry date. It is sold with a cycle rating: one cycle is one open and one close. The builder-grade spring on most Houston homes is rated at 10,000 cycles.
Do the arithmetic on your own house
Two adults leaving for work and coming home is four cycles a day. Add a school run, a grocery trip and a teenager and you are at six or seven. At four cycles a day, 10,000 cycles is just under seven years. At seven cycles a day it is under four.
| Cycles per day | 10,000-cycle spring | 25,000-cycle spring |
|---|---|---|
| 2 | ~13 years | ~34 years |
| 4 | ~7 years | ~17 years |
| 6 | ~4.5 years | ~11 years |
| 10 | ~2.7 years | ~7 years |
Then subtract for Houston
Those figures assume laboratory conditions. Ours are not laboratory conditions. Three local factors shorten spring life measurably:
- Humidity. Gulf air keeps a film of moisture on bare steel almost year-round. Surface rust creates pitting, pitting creates a stress riser, and the crack starts there. A rusted spring rarely reaches its rated cycles.
- Heat cycling. An unconditioned attached garage in Houston swings from 60°F in February to 130°F in August. Steel expands and contracts through that range thousands of times.
- Salt. If you are anywhere near the bay — Seabrook, La Porte, Baytown, Texas City, Galveston — add salt to the humidity. Untreated spring steel does not last out there.
What actually extends spring life
Lubrication is the big one. A light coat of proper garage-door lubricant on the spring coils once a year keeps the moisture film off the steel. It takes two minutes and it is the single most effective thing a homeowner can do. Use a garage-door-specific synthetic lubricant, never WD-40 — WD-40 is a solvent and it strips the protection off.
Keep the door balanced. An out-of-balance door makes the spring work outside its design range on every cycle. If your door will not hold still at waist height with the opener disconnected, the spring is being overworked right now.
Buy the cycles, not the spring. On a busy family door, a 25,000-cycle spring costs roughly 40% more and lasts roughly three times as long. That is not a close call.
The warning signs, in order of urgency
- Surface rust or flaking on the coil — start lubricating now.
- The door no longer holds at waist height when lifted by hand.
- The door feels heavier than it did, or the opener strains near the bottom.
- A sharp bang or pop at the start of travel.
- A visible gap in the coil — it has broken. Stop using the door.
Replace one or both?
Both, every time. They were fitted the same day and have taken identical wear. Replacing one buys you a second call-out fee within a year and leaves the door unbalanced until then — and an unbalanced door works its way through the opener next.
Written by the Houston's Best Garage Door team. We have been repairing garage doors across Greater Houston since 2011 — 21,000+ doors and counting. Everything above comes from what we actually find in Houston driveways, not from a manufacturer's brochure.
Questions about your own door? Call or text (713) 555-0142 — the phone call is free whether or not you book anything.
