Our Services

Need HVAC service? You’ll feel confident knowing your home and business systems are in good hands.


When winter hits in, don’t let your furnace leave you out in the cold. The experts at Schraer can keep your system in shape so you can stay cozy and comfortable in your home all season long. Whether it’s time for annual maintenance to prepare your system for colder temperatures or you’re in need of an emergency repair, we’re ready to help. We’re also happy to help you weigh the benefits of a new system. At Schraer Heating & Air Conditioning, we can help you find and install a home comfort system that works for your home.


When temperatures rise, you want your air conditioning working efficiently to keep you cool. Schraer Heating & Air Conditioning can make sure your system is giving your home peak performance. Whether you want to look for a new, energy efficient system or just want a regular tune-up, we have your home covered. Stuck in the heat with a broken-down system? We can help. Call us for an emergency AC repair!


If it’s time to replace your system or you’re just starting a new project, you might want to consider looking at geothermal options. Geothermal HVAC systems are more efficient than traditional systems and they’ll keep you just as comfortable. Contact Schraer Heating & Air Conditioning to learn more.

Schedule an Appointment Today

Schraer Heating & Air Conditioning has proudly served the Warrenton area for years. Get in touch with us today to reach the ultimate in home comfort.

Sheet Metal Fabrication

A complicated HVAC system needs many parts to run at its best. Sometimes you need a custom solution, like our sheet metal fabrication. Our services at Schraer Heating & Air Conditioning can make your project simpler, whether it’s new construction or you’re replacing ductwork. With ductwork customized for your home or business, you’ll get improved performance and better energy efficiency. Call us to discuss your sheet metal fabrication project now!


Your business requires a refrigeration system it can trust to run smoothly. We strive to be your refrigeration partner for life, so you can expect less downtime, quick repairs and affordable prices that don’t undercut your bottom line. We also offer a full line of other refrigeration services for your business. Give us a call today to book your appointment!

Serving These Communities

Moscow Mills
St. Peters

High Hill
New Florence
Old Monroe

Dardene Prairie
Hawk Point
Lake St. Louis
Montegomery City
New Melle
St. Charles
Wright City

About Schraer Heating & Air Conditioning

At Schraer Heating & Air Conditioning, we’re proud to offer products from Lennox® – a company whose dedication to your home comfort matches our own. We have the experience and skills to find the correct HVAC solution for your home, whether you need a small repair or a new system. Trust us to take care of your home and we’ll make sure you’re comfortable at all times. Call us at 636-456-5041 or contact us online so we can work together toward total home comfort!

Schraer Heating & Air Conditioning

Phone: 636-456-5041