Matching the spring to the door
Door weight, height, track radius and the lift arrangement decide which spring belongs on the shaft. Two coils that look alike can be rated very differently.
The springs do the lifting; the opener only guides a balanced door. When one breaks the door becomes far too heavy to move by hand. Leave it where it is and let an independent provider check the springs, cables and bearings together.
In most homes around here the garage is the front door, so springs reach their cycle count sooner than the age of the house suggests. Humid air and salt carried inland add surface rust that brings a tired spring to the end of its life earlier still.
Nothing about a loaded spring is a safe do-it-yourself job. The stored tension is enough to cause serious injury, and a broken spring often leaves the door held up by very little. Keep vehicles and children away from the opening until a provider has secured it.

Not every visit needs every item below. The quote separates the repair you asked for from anything optional the inspection turns up.
Door weight, height, track radius and the lift arrangement decide which spring belongs on the shaft. Two coils that look alike can be rated very differently.
Cables, drums, bearings, the center bracket and the shaft itself are inspected while the system is apart. A seized bearing will undo a brand-new spring within months.
After replacement the door is balanced by hand at several heights and the opener force and auto-reverse are tested, so the motor is not carrying weight it was never meant to lift.
The estimate should name the failed part, the replacement being fitted and any related wear found on the way. If a second worn component turns up, ask whether it needs doing now or can be watched at the next maintenance and tune-up visit.
A snapped spring often arrives with other symptoms. It is worth having cable and roller condition checked at the same visit, and the repair versus replacement guide is useful if the door is already more than twenty years old.
Referrals cover Boca Raton and neighboring communities, including Delray Beach. If you are not sure whether your street is covered, check the full service area.
The price follows the diagnosis. A single torsion spring on a light single door, a matched pair on a wide double door and a repair that also needs cables or bearings are three different jobs. Ask the independent provider to price the work on site once the door has been inspected.
On a door with two springs of the same age it is usually worth doing both. They have taken the same number of cycles, so the second failure tends to follow the first. Ask the provider to explain what each option covers before you decide.
Common spring sizes are often available, but timing depends on the provider and the property location. An unusual lift arrangement or a commercial door may need a part ordered, so ask the provider about timing before work starts.
Move vehicles out if the door is open and they can leave safely, then stop using the opener. Do not pull the emergency release while the door is raised. Keep the opening clear and let a trained technician secure the door first.
Call, describe what the door is doing and ask about provider availability.