Experts frequently are asked whether a house owner should go for garage door replacement panels or installing new garage door is better. Response to this would be situational. It will largely depend on factors like age and extent of damage to the door. You would have to take calculative steps to see if the cost invested will yield you long term results or not. Say you spend some amount on panel replacement and it could not last 2 months time. You will have to incur cost for garage door replacement now. It is wastage of energy, efforts and money.
Only an experienced technician can give you the right advice on whether you will get more value from complete replacement or panel replacement. In most cases, replacing one panel on a new door makes sense, but if there are several damaged sections then you better go for a new installation. In most cases this is more cost effective, and you get the added benefits of better insulation and an instant home upgrade for the same if not cheaper cost than replacing several panels.
This is important to consider a few things while you decide to replace panel of door. It may look good and strong enough from outside but its moving parts might get jeopardized. To prevent any accidents or avoidable instances it is essential to get it checked by a professional to orient you. They will look out for any minor repairs to be done, but if it has got eaten up by creatures the panel will have to be replaced. At the same time, if the panel got damaged it could’ve damaged the connecting and moving parts too. Damage to these parts might hamper the smooth functionality of your garage door. For cosmetic reasons you need to be cautious as this is the main entrance and you need to take care of the insulation and security.