www.FactoryExpoDirect.com Mobile Homes, San Antonio, Texas. Factory Expo Home Centers was founded in 1999 and specializes in all aspects of the Factory Built mobile home industry. We have several well-established Factory Direct retail centers situated throughout the country, each consistently outperforming the competition. What makes us unique? For starters, our patrons can visit any one of our factories for a rare behind the scenes look into how quality manufactured homes and mobile homes are constructed, from the first nail to the final coat of paint. After a confidence inspiring factory tour, our guests are able to spend time exploring the many fully furnished and decorated manufactured home models in our model village.