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.
Experience unparalleled comfort and service with Air Comfort Service, Inc. as our professionals ensure your home's climate control is seamless.
Experience exceptional HVAC services with Air Comfort Service, Inc., where customer satisfaction and professionalism meet.
Experience seamless comfort and control with Air Comfort Service, Inc., where our friendly technicians ensure your home is always at the perfect temperature.
Experience seamless comfort with Air Comfort Service, Inc. as our skilled technicians ensure your indoor climate is just right.
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
What Our Customers Say
quality
“He helped us install a dual zone smart thermostat system in our new house.”
professionalism
“John explained everything about resolving my thermostat problem in clear terms.”
expertise
“Spencer adjusted our Infinity thermostat and the house felt better almost immediately.”
Crystal City
MO
Bayless
MO
Kinloch
MO
Pasadena Hills
MO
Old Monroe
MO
Portage Des Sioux
MO
Pacific
MO
Grafton
IL
Bethalto
MO
Wentzville
MO
Cedar Hill
MO
Lakeshire
MO
Sappington
MO
Wood River
MO
Glendale
MO
Glencoe
MO
Maryville
IL
North Riverfront
MO
Herculaneum
MO
Wildwood
MO
St Louis Hills
MO
Lewis Place
MO
Eureka
MO
Mascoutah
IL
Troy
MO
Augusta
MO
Edwardsville
IL
Treloar
MO
Grubville
MO
Pasadena Park
MO
Penrose
MO
St. Paul
MO
Holstein
MO
Marthasville
MO
Bel Nor
MO
Concord Hill
MO
Foristell
MO
Cottleville
MO
Grover
MO
Imperial
MO
Manchester
MO
St. Ann
MO
Black Walnut
MO
Fenton
MO
West Alton
MO
Dellwood
MO
Calverton Park
MO
Baden
MO
Moscow Mills
MO
Alton
IL
Winchester
MO
Green Park
MO
Richmond Heights
MO
Aspenhoff
MO
Pagedale
MO
Maplewood
MO
Ellisville
MO
South Shore
MO
Gray Summit
MO
Jennings
MO
Matson
MO
O'Fallon
IL
The Hill
MO
Webster Groves
MO
Kings Oak
MO
Festus
MO
Byrnes Mill
MO
St. Peters
MO
Normandy
MO
Crystal Lake Park
MO
Central West End
MO
Clifton Heights
MO
Orchard Farm
MO
O'Fallon
MO
Weldon Spring
MO
Columbia
IL
Kirkwood
MO
Moline Acres
MO
Defiance
MO
University City
MO
Breckenridge Hills
MO
Smithton
IL
Clayton
MO
Black Jack
MO
East Alton
IL
Ferguson
MO
Warson Woods
MO
Antonia
MO
Bellefontaine Neighbors
MO
Winfield
MO
Berkeley
MO
Ballwin
MO
Josephville
MO
Woodson Terrace
MO
Frontenac
MO
West End
MO
Boschertown
MO
Pickney
MO
Labadie
MO
Mehlville
MO
Brentwood
MO
Benton Park
MO
Harley Hills
MO
Barnhart
MO
High Ridge
MO
Union
MO
Washington
MO
Florissant
MO
Bevo Mill
MO
Cappein
MO
Dardenne Prairie
MO
Crestwood
MO
Huntleigh
MO
Gilmore
MO
Bridgeton
MO
Grantwood Village
MO
Olivette
MO
Seeburger
MO
Hopewell
MO
St. Louis
MO
Fairground
MO
New Melle
MO
Fairview Heights
IL
Belleville
IL
Ville Ridge
MO
Shrewsbury
MO
Vinita Park
MO
Godfrey
IL
Hilsboro / Mapaville
IL
Hazelwood
MO
New Haven
MO
North Woods
MO
Glen Carbon
IL
Town and Country
MO
Allenton
MO
Freeburg
IL
Pine Lawn
MO
Harvester
MO
Arnold
MO
Soulard
MO
Cool Valley
MO
Creve Coeur
MO
Waterloo
MO
Machens
MO
Valley Park
MO
Wellston
MO
Wright City
MO
Robertsville
MO
Earth City
MO
Velda Village
MO
McKinley
MO
Weldon Spring Heights
MO
Affton
MO
Dittmer / Morse Mill
MO
Mount Pleasant
MO
Kampville
MO
Overland
MO
Maryland Heights
MO
Sunset Hills
MO
Rock Hill
MO
Spanish Lake
MO
Edmundson
MO
St. George
MO
House Springs
MO
Lake St. Louis
MO
Ladue
MO
Hillsdale
MO
Kimmswick
MO
Riverview
MO
Flint Hill
MO
St. John
MO
Bel Ridge
MO
Catawissa
MO
Pevely
MO
St. Charles
MO
Airport
MO
Des Peres
MO
Country Club Hills
MO
Chesterfield
MO
Sycamore Hills
MO
Columbus Square
MO
Oakland
MO
Oakville
MO
Lemay
MO
Warrenton
MO
Dutzow
MO