HVAC System Replacement & Financing in St. Charles & St. Louis areas
Upgrade your heating or cooling system with confidence — free in-person estimates, 0% financing for qualified customers, and warranties you can trust.
About This Service
When it's time to replace your furnace, air conditioner, heat pump, or mini-split, American Home Heating & Air Conditioning makes the process straightforward and honest. We provide free estimates in person — we need to see the complete scope of the job to give you an accurate quote.
We offer 0% financing for qualified customers on new system installations, so you can stay comfortable without straining your budget. Every equipment installation is backed by a 10-year manufacturer warranty and a 3-year labor warranty. Our team of technicians, led by owner Bryan Witt, handles every installation.
What We Do
Free In-Person Estimates
We don't quote over the phone — we come out, assess the full scope, and give you honest options.
0% Financing for Qualified Customers
Spread the cost of a new system with 0% financing on approved credit.
10-Year Manufacturer Warranty
New equipment installations include a full 10-year manufacturer warranty.
3-Year Labor Warranty
Our workmanship is backed by a 3-year labor warranty on equipment installations.
Frequently Asked Questions
Do you give free estimates?
Yes, we give free estimates, but not over the phone — we must see the complete scope of the job in person.
Do you offer financing?
Yes, we offer 0% financing for qualified customers on new system installations.
Do you price match other companies?
We do our best but cannot guarantee to price match equipment installations from other companies.
What warranties come with a new system?
Equipment installations include a 10-year manufacturer warranty and a 3-year labor warranty. Parts replacements carry a 1-year warranty.
Other Services We Offer
Air Conditioning Services
Tune-ups, diagnostics, repairs, and complete AC installation to keep your home cool all summer long.
Learn moreHeating Services
Gas and electric furnace service, repair, and high-efficiency installation — plus heat pump repair, maintenance, and installation for reliable winter comfort.
Learn moreMini Splits
Energy-efficient ductless mini-split systems for supplemental heating and cooling where ductwork isn't practical.
Learn moreHumidifiers & Indoor Air Quality
Aprilaire whole-home humidifiers and indoor air quality solutions for balanced, comfortable indoor air.
Learn moreEmergency 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.
Learn moreContact 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.
