Thermostat and Smart Controls in Greater St. Louis
Upgrade to smart comfort with expert setup and support. Our licensed team installs and configures thermostats and smart HVAC controls so your home stays efficient and easy to manage. We are a family-owned Carrier Factory Authorized Dealer with a 4.9 rating from 2,124 reviews. Serving the Greater St. Louis area, including St. Louis, St. Charles, and O'Fallon. Get a free estimate or schedule service today.
Price intelligence
How our prices compare.
rate us fair value or better100%
What can you expect to pay?
Customer Perception
How customers feel about the bill, in their words.
Post-job survey · verified customers
SentimentAir Comfort Service, Inc.Market avgDelta
Reasonable Price100%63%+37 pts
Price Factors
Typical price ranges.
Price ranges for this service based on Air Comfort Service, Inc. job history.
Replace/Install
Our price$19 – $1,200
Typical$150 – $1,100
Repair
Our price$99 – $1,200
Typical$101 – $750
Maintain
Our price$19 – $99
Why us
Why Choose Us
Carrier authorized pros
Carrier Factory Authorized Dealer
Trusted since 1969
Family-owned, serving the STL metro since 1969
Transparent flat pricing
Upfront, flat-rate quotes before work begins
Licensed and permitted
Licensed technicians; we pull all required permits
24/7 availability
Emergency service days, nights, weekends, holidays
Reviews Proof
What Our Customers Say
quality
quality
“He helped us install a dual zone smart thermostat system in our new house.”
professionalism
professionalism
“John explained everything about resolving my thermostat problem in clear terms.”
expertise
expertise
“Spencer adjusted our Infinity thermostat and the house felt better almost immediately.”