The Perfect Solution for your Mobile Business! Standard Specs and Custom Features Available How about a Flower Shop on Wheels? View More Projects from Start to Finish A Unique Approach for your Mobile Business! View the Building Process from the Ground Up Turn a Vintage Trailer into a Mobile Photo Booth! View More Projects from Start to Finish A Makeover for Your Vintage Home! See More "Before" and "After" Makeovers Welcome to Business Trailer Sales founded 2013. We are a local southern California custom trailer company. Invest in your business by taking it to the next level with your very own custom trailer.