www.FactoryExpoDirect.com Mobile Homes In San Antonio, Texas. Buyer's reviews. 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. Mobile Homes San Antonio, Texas.