Matching the spring to the door
Weight, height, track radius and the lift arrangement decide which spring fits. Two coils that look the same can be rated completely differently, and the wrong one leaves the door unbalanced.
A garage door spring carries almost the whole weight of the door. When one breaks, the opener has nothing to help it and the door stops lifting. An independent provider should check the springs, cables, drums and bearings as one system before quoting a replacement.
Springs are rated by cycles, not by years. In most Phoenix homes the garage door is the entrance everybody uses, so a door can pass its rated cycle count long before the owner thinks of it as old.
Do not try to replace or adjust a spring yourself. A torsion spring holds enough stored energy to cause serious injury, and the winding bars and mounting hardware have to be handled by someone trained for it.

Not every visit needs every item below. Ask the provider to separate the diagnosed repair from optional work you can decline.
Weight, height, track radius and the lift arrangement decide which spring fits. Two coils that look the same can be rated completely differently, and the wrong one leaves the door unbalanced.
Cables, drums, the center bearing, end bearing plates and the shaft are inspected while the spring system is open. A worn bearing will chew through a new spring.
After the replacement the door is balanced by hand and the opener's force settings and reverse test are checked. The motor should never be compensating for a heavy door.
On a two-spring door, replacing only the broken one leaves a new spring working beside an equally worn one. Ask the technician what that means for your door before you decide.
The quote should name the failed component, the compatible replacement and any related work found during the inspection. Ask what the technician found that you did not report, because a spring failure often arrives alongside frayed cables or a seized roller.
Higher-cycle springs are worth discussing on a door that is opened many times a day. They are not a cure for a door that is out of balance, so the conversation belongs alongside a proper cable and roller check.
If the door itself is bent, rusted through or missing sections, use the repair versus replacement guide to prepare questions before the visit. Many spring calls also turn up an opener problem that only became visible once the door moved freely again.
Spring referrals cover the valley, including Glendale and the rest of our service areas.
The spring type and rating, whether the door uses one spring or two, and the condition of the cables, drums and bearings all change the work involved. Ask the independent provider to inspect first and give you the price before fitting anything.
Many residential spring replacements are completed at the first visit when common sizes are stocked. Unusual lift arrangements or oversized doors can need a part ordered; ask the provider at the inspection rather than afterwards.
No. A wound torsion spring stores a large amount of energy and releasing it without the correct bars and technique causes serious injuries every year. Keep everyone away from the door and let a trained technician handle it.
The garage is the main entrance in most valley homes, so the door cycles several times a day rather than a few times a week. Heat and fine monsoon dust also dry out the rollers and bearings the spring works against, which adds load. See the spring guide for more.
Call and describe what the door is doing so a provider can plan the next step.