Fullerton Building Systems Information

Fullerton Building Systems is a third-generation, family-owned custom prefabricated building shell manufacturer and commercial construction partner with over 60 years of experience helping brands expand smarter. Using advanced prefabricated building methods, we deliver the speed, predictability, and consistency growing companies need to scale with confidence. Our streamlined process helps businesses open up to 60 days earlier than traditional construction while improving capital efficiency and reducing risk. With no change orders, shorter timelines, and fewer jobsite variables, projects stay on track and teams stay aligned. We partner with brands, franchise owners, developers, architects, and contractors as a trusted and transparent partner, grounded in humility and focused on quality, reliability, and long-term success.