Service call/Repair/Install/Maintenance Contract

 We are always available to resolve any type of residential or commercial HVAC challenge,  we believe in treating our customers like family.  Whether you’re looking for new heating/cooling system installation, equipment upgrades, essential maintenance, or skilled repair. For expert installation, service and repair in St. Charles, St. Louis, Lincoln, and Warren Counties contact Crabtree Heating and Cooling now.

Ameren Rebates

Save energy, lower your bill and make your home more comfortable with help from the Ameren Missouri Heating and Cooling Program. When you install qualifying, energy-efficient heating and cooling equipment, not only will you use less energy, but you can also earn significant rebates to help make the installation more affordable.


 We offer a variety of maintenance services designed to address your unique HVAC needs and our rates are among the most competitive in the industry. Call us today for an initial system check up and get the peace of mind that comes from knowing your HVAC system is working as effectively and efficiently as possible. 




The advantage you can see and feel, higher efficiency and greater comfort.

Air Handlers


 Using innovative variable-speed technology,  air handlers provide your home with reliable and efficient comfort year round, and helps to deliver cleaner air and less moisture. 

Boiler Systems


Water or Steam Heat

Service or Installation, we have you covered.  You can trust in our many years of experience with boiler systems.

Media Filters


 Media filters block out more dust, allergens, and other pollutants from entering your system, and require attention less often.

Air Conditioners


Outdoor unit that cools on the hottest days with reliability you can count on.

Heat Pumps


Outdoor unit that heats during the winter and cools during the summer with quiet reliable efficiency.

Whole Home Humidifier


Whole home steam humidifiers and whole home humidifiers. 

With seasonal dryness, maintaining the right level of humidity can make all the difference in how comfortable you feel in your home.

Hot Water Heater


From standard tank types to high efficiency tank less. If you are still unsure which way to go we can help you figure that out. 

Zoning Systems


 Zoning is the controlled delivery of heating and cooling to different areas (zones) in your home or business as desired, keeping you comfortable in whatever room you are in.  

Air Scrubber


 Helping remove up to 99.9% of the harmful contaminants in your home, this product has been given the air cleaning technology award, awarded by the Certified Space Technology seal of approval by the Space Foundation (in cooperation with NASA).

Maintenance Contracts


Maintenance is a checkup for your hvac systems to insure that they are working properly and efficiently, so that you have piece of mind. Please give a call to check on different contract options we offer.



 From smart home thermostats to the most basic of thermostats

we can help find the perfect fit for you.