Quality assurance programs in Collinsville, Illinois

Welcome to McCarthy Building Companies, Inc., your trusted general contractor located at 1604 Eastport Plaza Drive, Suite 106, Collinsville, Illinois. At McCarthy, we believe in more than just building projects; we create exceptional experiences throughout the entire project life cycle. As an employee-owned company, we bring the right people, passion, and resources together to achieve the best outcomes for our clients. With a strategic location along the I-255 corridor, just minutes from our company headquarters, our Illinois office is uniquely positioned to support the growth and expansion needs of Southern and Central Illinois. As a community-focused builder with national expertise, we are equipped to cover the entire U.S. while making a positive impact in every community we serve.