If it's higher than four feet off the ground, or lower than three feet, you'll know it needs to be realigned. Use a ladder as a brace to keep the door safely open while you're working on it. This also takes the pressure off the springs so you can inspect them for rust and warping.
There's a chance it might cost you upwards of $150-200 to spot repair damaged garage door panel. If it happens to be an in-production model, they probably will be able to repair or replace the entire panel (if needed) for $250-400.
Chain drive openers are more durable and affordable, but they can be quite noisy. Belt drive openers are quieter but come at a higher price point. Mar 2, 2023
The average garage door opener will last between 15 and 20 years, though possibly even longer if you stay on top of garage door maintenance. If your opener is aging and at the risk of failing, it makes sense to get it replaced.