Keeping St. Charles & St. Louis Comfortable Since 1979
Residential heating and air conditioning repair, installation, and emergency service for St. Charles & St. Louis families. Family owned and operated since 1979.
Complete Heating & Cooling Solutions for Your Home
From AC repair in St. Louis to furnace installation in St. Charles, our experienced team handles it all — residential service only.
Air Conditioning Services
Tune-ups, diagnostics, repairs, and complete AC installation to keep your home cool all summer long.
Heating Services
Gas and electric furnace service, repair, and high-efficiency installation — plus heat pump repair, maintenance, and installation for reliable winter comfort.
Mini Splits
Energy-efficient ductless mini-split systems for supplemental heating and cooling where ductwork isn't practical.
Humidifiers & Indoor Air Quality
Aprilaire whole-home humidifiers and indoor air quality solutions for balanced, comfortable indoor air.
Emergency After Hours & Weekend Service
Heating or cooling problems don't always happen during regular business hours. We offer after hours and weekend emergency service when available to help get your home comfortably again. Please call to check availability and to schedule.
System Replacement & Financing
Upgrade your equipment with 0% financing for qualified customers on new installations.
Why St. Charles & St. Louis Families Trust American Home Heating and Air
47+ Years, Family Owned
Founded in 1979 by Tom Witt. Today, owner Bryan Witt leads our experienced team of technicians across St. Charles & St. Louis.
About UsEmergency After Hours & Weekend Service
Heating or cooling problems don't always happen during regular business hours. We offer after hours and weekend emergency service when available to help get your home comfortably again. Please call to check availability and to schedule.
0% Financing for Qualified Customers
Upgrade your system with 0% financing on new installations, with approved credit.
Licensed, Bonded & Insured
Licensed and bonded in both St. Charles and St. Louis counties for your peace of mind.
BBB A+ Rated Business
An A+ rating from the Better Business Bureau — honest, dependable service since 1979.
View BBB Profile5.0 on Google (82+ Reviews)
Homeowners across St. Charles and St. Louis rate us a perfect 5.0 — read what your neighbors say.
Read Google ReviewsMaintenance Plans from $225/yr
AC + furnace maintenance, 15% off repairs, and 5% off installations for a full year.
Premium Comfort by Amana
Discover the next level of home comfort with Amana S-Series inverter technology. Enjoy consistent temperatures, improved energy efficiency, quieter operation, and exceptional warranty protection.
Family Owned & Operated Since 1979
Proudly serving St. Charles and St. Louis counties since 1979, American Home Heating & Air Conditioning has built its reputation on honest service, quality workmanship, and treating customers like family.
Bryan Witt, Owner
Leading our team of technicians for service calls, repairs, and installations.
Maintenance Plans & Transparent Pricing
Simple, upfront pricing on the services that keep your home comfortable.
Maintenance Tune-Up
A single AC or furnace tune-up to keep your system running efficiently.
Yearly Maintenance Plan
AC + furnace maintenance, 15% off repairs, 5% off installations, and access to after-hours and weekend emergency service (subject to availability and applicable service rates) — all for a full year.
Emergency After Hours & Weekend
Heating or cooling problems don't always happen during regular business hours. We offer after hours and weekend emergency service when available to help get your home comfortably again. Please call to check availability and to schedule.
Standard Service Call & Diagnostic
Our experienced technicians will diagnose your heating or cooling issue, explain the problem, and provide upfront repair pricing before any work begins.
0% Financing
Qualified customers can finance new system installations at 0% with approved credit.
Repair and equipment pricing depends on what we find during diagnosis — your technician will provide options before any work is done. We do our best to price-match equipment installations, but it's not guaranteed.
See How Much a High-Efficiency System Could Save You in the St. Louis and St. Charles Areas
Upgrading to a higher-SEER air conditioner can dramatically cut your cooling costs in the St. Louis and St. Charles areas. Adjust the sliders below to estimate your yearly and long-term savings.
Older systems typically rate 8–13 SEER.
Modern high-efficiency systems reach 16–22 SEER.
Not sure? The average Missouri home spends $900–$1,500/year on cooling.
That's a 44% reduction in your cooling costs — every single year.
Ready to start saving? Our team installs high-efficiency systems with flexible financing.
Estimates are for comparison only. Actual savings vary with home size, insulation, climate, usage, and equipment. Call us for a personalized assessment.
What Our Neighbors Say
Real reviews from homeowners across St. Charles and St. Louis.
"Conner is a very good and courteous tech. Good knowledge and knows what he is doing. Thank you for all the good service."
Authentic customer reviews publicly posted to American Home Heating & Air Conditioning's Google Business Profile.
Since 1979, American Home Heating and Air has built its reputation one satisfied customer at a time. As a family-owned and operated business, owner Bryan Witt and his team treat every home like it's their own — delivering dependable residential heating and cooling service the St. Charles and St. Louis communities have counted on for over 47 years.
Contact American Home Heating & Air
Tell us what's going on and we'll reach out to get you on the schedule. For no-heat or no-AC emergencies, please call us directly at 636-946-1055 — this form is for repairs and new installations that aren't an emergency.
Visit & Call Us
Heating or cooling problems don't always happen during regular business hours. We offer after hours and weekend emergency service when available to help get your home comfortably again. Please call (636) 946-1055 to check availability and to schedule.
