We don't post a flat number here because spring size, cable length, and whether the drums or bearing plates need replacing all move the bill, and guessing at a price before we've seen the door does more harm than good. What we can tell you is how the decision gets made: at Streamwood's median income of $101,049, most owners choose a spring or cable repair over a full door replacement when the door itself is straight and the track is sound - that's the repair side of the line.
The replacement side of the line shows up when the panel is bent, the door is a non-insulated original from the early 80s with no weather seal left, or the opener has failed alongside the spring - at that point you're paying for two repairs to keep an old door running instead of one investment in a door that'll outlast both.
We'll give you the actual number once we're standing in front of the door, not before.