Andorra is a party to the Hague Convention, therefore, all that is required to have your documents legalized for use in Andorra is an Apostille.
There are many other countries that accept the Apostille as an acceptable document for international legalization. So there is no need to visit the Andorra embassy or consular office. If you need to get an affordable Apostille for Andorra, you can call or visit the following services:
Notary & Apostille Service
Other Apostille Service