For over 50 years,  IFS - Residential Services has been serving the St. Louis area and surrounding communities. Our dedication to providing top quality service and support has not changed since our first service call in 1966. What began as Air Masters, a one-man service shop, has grown into a major corporation with over 300 employees and nearly 200 service vehicles.  While IFS has become one of the premier mechanical contractors in the state, our goal is, and will always remain offering stellar ...

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We had a wonderful experience working with IFS! We replaced our AC, furnace and water heater in our home. All of the employees were very professional and accommodating. We would highly suggest using IFS.

Call us anytime, day or night! (636) 680-2100

We'll work to accommodate your busy schedule. CLICK HERE TO LEARN MORE

IFS technicians receive continuing education to provide you the best service possible