We don't post a flat number for this because panel replacement cost swings on three things: how many panels are damaged, whether the door is a single or a double, and whether we can get an exact match or have to special-order a close one. A single damaged panel on a one-car door is a different job than replacing two panels on a 16-foot double, and Bartlett's housing stock leans toward the wider two-car doors that came standard with homes built in that early-1990s wave.
We quote the job in person, not over the phone, because panel pricing depends on what's actually bolted to your garage. If you want a ballpark before we're on-site, tell us the door width and how old the house is - that narrows it down more than you'd think.