Alumina Products is a leading custom aluminum mailbox and decorative street sign manufacturer. Since 1998, we have been providing quality, decorative mailboxes and street signs throughout South West Florida and the United States. Here are just a few of our custom mailbox collections; our variety of custom bases, finials, brackets, and accents will help you design the perfect custom aluminum mailbox for your home or business.

We manufacturer custom mailboxes and street signs from our Tarpon Springs, Florida location. As a subsidiary of Modern Aluminum Castings, Alumina Products Inc. has built off of Modern's custom cast aluminum casting capabilities to specialize in custom mailboxes and street signs for both residential and commercial applications. For over 20 years, Alumina Products Inc. has been combining modern technology with traditional casting methods to provide quality aluminum and metal mailboxes, street signs, frames and more to Southwest Florida and across the United States.