about us

Cornelius Contracting HVAC, a leading Heating and Cooling, Electrical, Plumbing and Property Management Contractor in Northwest Missouri since 1993. We tackle everything from complex and large-scale construction projects to Residential repair and installation, Property Management from duplexes to apartment complexes. Fueled by our commitment to excellence, we go the extra mile to make sure clients are completely satisfied with our work. Call us today to schedule a consultation.


When you call Cornelius Contracting HVAC, you will be contacted by one of our licensed professionals, who will identify your problem, educate you about your options, give you an estimate, complete the work and takes payment.  Easy and efficient!


We Service All Brands

Quality You Deserve, Service You Depend On

Our team of master mechanics is licensed and insured to service all heating and cooling brands. We offer 24/7, 365-day sales, service, and installation for residential and commercial needs.


Cornelius Contracting HVAC has been serving Leavenworth County, Clay County, Platte County, Jackson County, Wyandotte County, Doniphan County, Atchison County, Buchanan and Andrew County since 1993. 

Frequently asked questions

What brands do you work on?

We work on all brands, including Rheem, Lennox, Bosch, Ruud, Armstrong Air, Bryant, Goodman, Heil, Amana, Carrier, Arcoaire, American Standard, Day and Night, York, Coleman, and Trane.

What do I do if I have an emergency?

We are have 24/7, 365 days a year service! We can take your phone call at anytime and help you out, no matter the emergency.

What areas do you service?

We service St. Joe, Liberty, Claycomo, Parkville, Platte City, and North Johnson County.

Contact Us Now


Cornelius Contracting HVAC on Google Maps

(816) 232-3597​​

Toll Free (844) 454-3597


2314 175th Rd

Wathena, KS 66090

5150 NW Waukomis Dr

Northmoor, MO 64151