About Otten Contracting – Full‑Service ICF Construction Experts

Over 35 Years’ Experience in Southern Illinois ICF Building and Construction

At Otten Contracting, we’re a Green Energy Star certified construction firm serving Marissa, IL, Illinois, Missouri, and surrounding states. We specialize in Insulated Concrete Form (ICF) building—whether you need remodeling, residential homes, or commercial projects, we handle everything from design through delivery. Trusted, reliable, and focused on strong client relationships.