Korte & Luitjohan Contractors, Inc provides commercial design-build services, commercial construction management, and commercial general contracting to the Highland, IL area.
Korte Luitjohan recently completed an extensive structural repair here at Holy Family Church in Cahokia. From the conceptual bid process through completion we were so pleased with the communication of what was needed and all the work as completed including new concrete entry with ADA ramp and railing. Their sub contractor used for masonry work on the project was just as professional and did excellent work. We would recommend Korte Luitjohan for any construction needs.
Bill Graves
Holy Family Trustee
DK
Daniel King
May 7, 2025
5.0
Korte Luitjohan Contractors is an excellent company staffed by conscientious, professional, and skilled builders.
SS
St. Clair County Historical Society
Mar 24, 2024
5.0
From start to finish, the team at K&L worked with us to make our historical restoration project a success.
The project was a complete renovation and rebuilding of a 1909 house in Belleville’s historic district. The process presented many challenges and through it all, K&L provided top-flight advice and service.
The historic district has a newly-renewed building—a library and community history center. K&L was instrumental in making this vision a reality.
BK
Brad Koonce
Mar 22, 2024
5.0
Great company to work with. They completed the job in a timely manner and did great work. Would highly recommend them.
Frequently Asked Questions About Korte & Luitjohan Contractors, Inc.
How do you pronounce your name?
Core-tee and Loot-john. We’re named for our founders.
Is K & L still a family-owned business?
Yes, we are. K & L was founded in 1958 by Cyril “Pete” Korte, who was joined the following year by his brother-in-law, Joe Luitjohan. Upon Pete’s retirement in 2018, his son, Gregg, became president. There are several family members who work in various capacities. But our desire is for everyone who works for us to feel like family.
What are the benefits of design-build?
Design-build offers full integration of all aspects of a project – from design and pre-construction to construction and closeout – allowing Korte & Luitjohan to provide a streamlined project delivery unmatched in quality, speed, service, and accountability.
Does K & L self-perform any of its work?
Yes, we self-perform carpentry, concrete, piping and excavating.
Are water treatment and wastewater treatment plants your specialty?
While we have extensive experience in these areas, K & L’s construction portfolio is diverse, including churches, medical facilities, office buildings, and historic renovations.
Does K & L do single-family residential construction?
No, we do not.
Does K & L only do work in Illinois?
No, we’ve done many projects in the St. Louis area. If you’re on the Missouri side of the Mississippi River, we’d love to talk to you about your project!
What type of special training do you have to perform work in the medical field?
K & L field staff participate in Infection Control Risk Assessment (ICRA) training to understand the procedures for properly performing medical facility construction and renovation tasks.
This training, conducted by the American Society for Healthcare Engineering (ASHE), covers the practical use of ICRA tools including containment, negative air, HEPA filtration, and work practice techniques.
Does K & L stand behind its work?
Absolutely! We provide a 2-year warranty on all self-perform portions of our projects. Additionally, we conduct 11-month and 23-month inspections to make sure you’re happy with our work.