Depending on the damage to the section sometimes they can be repaired. In the unfortunate event they have to be replaced many things have to be established.

Although garage doors look the same unfortunately they are not, there are MANY variations. Different manufacturers have different designs and different models within those.  In order to replace a section we first need to establish who made the door and the model number, then we need to find out if it is available (some manufacturer’s have discontinued models and some manufacturers are no longer in business).