HVAC Pre-Season Special $150
HVAC Pre-Season Special $150
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 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 service to all of our customers.

With just one call, you’ll access our residential services – heating and cooling, and plumbing, and will received prompt service by one of the largest fleets of professional technicians in the St. Louis region.

Residential Planned Maintenance Program

When should I replace my Heating and Cooling Equipment?

Residential Energy Efficient Rebates

Testimonials

We have been extremely pleased with IFS. The few times we have called for service, IFS has been prompt to respond with excellently trained...
Tom & Ginny M.
When my AC stopped working I called around to find the best deal on an efficient system and went with IFS.  I will never use anybody else.
Mark R.
I called IFS on one of the hottest days of the year.  My new born son and I were stuck at home in the heat.  They got out to us the same day...
Laura A.
I will recommend IFS to my neighbors, family and friends. I was very impressed. Thank you for the OUTSTANDING SERVICE!!!. Well done
Tom M.
We recently moved into the St Louis area. Upon closing on our new home we found one of the central air conditioning units was inoperable. IF...
Peg B.
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