How much does replacing a garage door cost?

Anywhere from around $500 up to over $5000 for very high-end doors.

You can get garage doors as low as $300 but generally not worth it. You can sometimes find cheaper prices at big box retailers like lowes. However, they have to outsource the install anyways. I found that a lowes in Indianapolis uses access garage doors. You can buy your doors at wholesale prices there if you want and avoid the middleman.