About Us

Integrated Facility Services (IFS), formerly Air Masters Corporation, began its operations in the fall of 1966 in Webster Groves, Missouri.  What was once a one man shop has become a full service mechanical contractor with broad expertise, broad capabilities, a passion for customer satisfaction, quality workmanship, and energy saving technology.  While our operations are now quite varied, we remain true to our roots as a Residential HVAC Service Contractor.

Our team of talented engineers and skilled technicians design, build, and manage sustainable HVAC, and facility solutions. Our goal is to ensure occupant comfort and safety, optimize systems performance, save energy, and reduce operational costs over the lifetime of a building.

With just one call, you’ll access our integrated services – HVAC, plumbing, building automation controls, fire protection, and 24/7 service by one of the largest fleets of professional technicians in the St. Louis region, and mid-Missouri.

At IFS, more than 300 professional and trade employees proudly partner with client facility teams in the Midwest and around the country. We are ready to partner with you!