Top-Tier Contracting Services Available in Harrisburg, IL.

Your Dependable Ally in Construction 

Steadfast Reliability You Can Rely On 

Supported by Over 66 Years of Established Expertise.

Korte & Luitjohan Contractors, Inc: Premier General Contracting Services in the Harrisburg, IL Region.

At Korte & Luitjohan Contractors, Inc., our holistic approach to general contracting guarantees that clients benefit from a reliable partner overseeing every aspect of construction—from the preliminary planning and coordination to scheduling, budgeting, and on-site supervision. With more than sixty years of industry experience, we emphasize transparent communication and seamless collaboration with architects and subcontractors, all while upholding a steadfast dedication to safety and quality. This strategy fosters an efficient construction process that honors deadlines and budgetary constraints. Contact us today to initiate your project.

Concrete pumping truck near green trees and signs.

Uncover Why Harrisburg, IL, Selects Us as Their Trusted General Contracting Partner.

Our approach emphasizes collaboration and a steadfast commitment to providing customized services for our clients. We begin by thoroughly understanding your vision, project details, and timeline, ensuring that every aspect is executed with precision and care. By closely collaborating with your team, we expertly manage subcontractors, adhere to deadlines, control costs, and maintain exceptional quality throughout the entire project lifecycle.


With more than 66 years of industry experience and an unwavering pursuit of excellence, Korte & Luitjohan Contractors, Inc. establishes a high benchmark for general contracting in the Harrisburg, IL area. Contact us today to discuss your project.

Man and woman pose near a Kubota KX052 excavator. They wear red shirts. Woman is in the cab. Outdoors, daytime.

Are you in search of outstanding General Contracting services?

 At Korte & Luitjohan Contractors, Inc., we take pride in being your reliable general contractor. Our commitment extends across the St. Louis Metro area, South Central Illinois, and Southern Illinois. Our experienced team skillfully manages every phase of construction—from the initial planning and budgeting to on-site supervision and quality control. We work closely with owners, architects, and subcontractors to ensure that your project progresses smoothly, safely, and without delays. Reach out to us today to begin your journey with a trusted general contracting partner.

Why Choose General Contracting?

Comprehensive Project Oversight


We coordinate every aspect of construction — from subcontractor management to quality control — ensuring smooth execution from start to finish.

Proven Experience


With over six decades of building experience, our skilled team brings knowledge, craftsmanship, and reliability to every project.

Commitment to Results


We deliver projects on time, on budget, and to the highest quality standards — earning the trust of clients across the St. Louis Metro and Southern Illinois regions.