About IFS

Integrated Facility Services (IFS) — formerly Air Masters, Gateway Mechanical, Gateway Mechanical Fire Protection and Automation Solutions Group — is your single-point resource for mechanical contracting and service.

• Mechanical
• HVAC
• Service
• Plumbing
• Building Automation
• Fire Protection

Integrated Facility Services – providing reliable, cost-effective and energy-efficient mechanical contracting, facility solutions and HVAC service.

Integrated Facility Services (IFS), one of the largest St. Louis-based mechanical contractors, has completed the transaction to become 100% employee-owned through its newly created Employee Stock Ownership Plan (ESOP).The strategic decision made by the firm’s leadership reflects IFS’s values and actively showcases their commitment to employee fulfillment and successes. Under the ESOP, all eligible employees will earn a yearly allocation of stock, allowing them to earn ownership through their service.
Learn More Here

Integrated Facility Services (IFS) is a mechanical contractor with broad expertise, deep capabilities, and a passion for customer satisfaction, quality workmanship, and energy saving technology.

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 200 professional and trade employees proudly partner with client facility teams in the Midwest and around the country. We’re ready to partner with you.