Integrated Facility Services (IFS) is a full-service mechanical contractor and ENR Midwest Top 50 Specialty Contractor, recognized among the largest St. Louis mechanical contractors. With 50 years of experience, IFS designs, builds, and manages sustainable HVAC and facility solutions across St. Louis and Mid-Missouri.

Our team of engineers and skilled technicians focuses on optimizing systems to ensure occupant comfort, safety, and significant energy savings while reducing operational costs. We seamlessly build, operate, manage, and service mechanical and building automation systems. IFS offers a comprehensive range of services, including HVAC, plumbing, building automation controls, and fire protection, driven by a commitment to quality workmanship and energy-saving technology.