Tradition and Quality Since 1972

Founded by Jay Thornburg and built on a foundation of strong family values, Thornburg & Sons Inc. has earned its reputation as a trusted name in construction throughout Delaware County and the surrounding regions. The company’s commitment to integrity, quality craftsmanship, and customer satisfaction has been at the heart of its operations since its inception. Now under the leadership of Marc Thornburg, the company continues to grow, embracing modern innovations while upholding a legacy of excellence, reliability, and dedication to delivering superior construction services for both residential and commercial projects.

Our Construction Services in IndianaConstruction Solutions for Every Project in IndianaWe offer a wide range of services to meet the needs of both commercial and residential clients, always committed to delivering solid and long-lasting results.

Commercial ConstructionNo matter your commercial needs, we’re equipped to build efficient structures tailored to your business, using high-quality materials.

Steel BuildingsOur steel construction solutions provide durability, safety, and low maintenance costs—ideal for large commercial and agricultural projects.

Pole BarnsSpecializing in pole barn construction, we offer versatile structures perfect for storage, agriculture, and multi-functional spaces.

BarndominiumCombining style and functionality, our barndominium offers a unique residential space, blending comfort and durability in a modern setting.

Residential ConstructionSpecializing in quality residential construction, we create beautiful, lasting homes with craftsmanship, integrity, and attention to detail.

Garages & WorkshopsWe build custom garages and workshops designed to meet your personal or commercial needs, ensuring practicality and safety.

Renovations & RemodelsGive your spaces a fresh new look with our remodeling services. We transform outdated areas into modern, functional spaces based on your needs.

Siding & GuttersEnhance and protect your buildings with our siding and gutter installation services, ensuring both beauty and functionality.

Why Thornburg & Sons Inc.?

We are Committedto Building Excellence At Thornburg & Sons Inc., we believe every project is an opportunity to create something unique and lasting. With a skilled team, years of experience, and a proven track record of success, we’re ready to bring your construction project—whether residential or commercial—to life.