Since Belgium is a party to the Hague Convention of 1961, all that is required to have a documents legalized for use in Belgium 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 Belgium embassy or consular office for a stamp. If you need an affordable Apostille for Belgium, you can call or visit the following services:
Notary & Apostille Service