O'Neil Building Systems | Roofing Services in Belleville, IL 62223

Absolutely. While we specialize in new construction, our expertise in durable post-frame building systems gives us deep knowledge of proper roofing techniques and water management. We can assess the issue and provide a durable repair or, if a full replacement is needed, construct a new, energy-efficient roof system designed to withstand our local weather, using high-quality materials backed by strong warranties.

Our process begins with a consultation to understand your needs and budget. As an approved supplier for the state of Illinois, we handle the coordination of your chosen home model. Our engineering department ensures all plans meet state and local codes, and our construction team manages the site preparation, foundation, and final installation, providing a seamless turnkey experience for your new home.

Yes, we provide start-to-finish service. From the initial custom design based on your specifications to securing permits, providing sealed structural drawings, and completing construction, our team manages every detail. We use proven post-frame methods for a strong, energy-efficient structure, whether it's a detached garage, a workshop, or a permitted accessory dwelling unit (ADU) for your property.