HVAC Pre-Season Special $114.95*
HVAC Pre-Season Special $114.95*
We'll work to accommodate your busy schedule. CLICK HERE TO LEARN MORE
Financing Available!
Financing Available!
Apply For Financing Online Today!
24/7/365 Emergency Service
24/7/365 Emergency Service
Call us anytime, day or night! (636) 680-2100
Knowledgeable Technicians
Knowledgeable Technicians
IFS technicians receive continuing education to provide you the best service possible

IFS now offers financing through FTL Finance to assist with your residential HVAC purchase!

Apply Online Now!

Serving St. Louis for Over 50 Years

Serving St. Louis for Over 50 Years

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 1 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 service to all of our customers.

Residential Planned Maintenance Programs

When should I replace my Heating and Cooling Equipment?

Residential Energy Efficient Rebates