We don't post a flat number here because it isn't a flat job - a single steel door on a standard two-car opening costs differently than a double door with insulation upgraded to match the cold-moderate swings we get, and differently again if the track or opener has to come out too. What drives the number is door width, insulation level, and whether we're replacing just the door or the door plus springs, track, and opener.
What we can tell you honestly: in a service area with a median household income around $82,692, we see a real mix of jobs - some homeowners replacing a single panel-rated door as cheaply as the opening allows, others going for a fully insulated door because they use the garage as a workspace or the room above it gets cold. Both are reasonable. We'll walk your actual opening, tell you what it needs, and give you a number before anything gets ordered. If a quote feels vague, ask what's included - track, springs, weatherstrip, and haul-away should all be spelled out, not bundled into a guess.