Carroll Control Systems Inc. has been delivering expert solutions in building automation and HVAC since 1998. What started with a focus on pneumatic controls has grown into a full-service provider offering commercial HVAC services, water treatment, and certified backflow testing. Based in Carroll, Iowa, our company combines small-town values with forward-thinking innovation, earning the trust of clients who rely on us for consistent quality and responsive service.

Founder Todd Wanninger saw a need for higher standards and brought his vision to life through a team that values precision, professionalism, and pride in their work. Today, Carroll Control Systems continues to lead with a strong commitment to excellence and education. We are honored to be a U.S. Department of Labor-approved apprenticeship company, helping train the next generation of skilled technicians while pushing the boundaries of what’s possible in modern building systems.