Heating Up the Deals so You Can Cool Off

Prompt and Professional HVAC in Wentzville, MO

If your furnace has started making weird noises or your air conditioning is leaking fluid, it may be time for a checkup. Let our team at Haarmann Heating & A/C in Wentzville, MO, diagnose the problems and provide lasting solutions that are affordable and reliable. 

Residents within St. Charles County have relied on us for years. Known for our attention to detail and prompt service, we’ve become a favorite for many of your neighbors and friends in the area. Our certified technicians will go above and beyond to ensure everything you need is accounted for.

From diagnosing electrical problems in your air conditioner to installing a completely new furnace, our team is ready to handle your specific needs. We will go over all details thoroughly to ensure that you understand the process. We’ll always keep you in the loop and provide affordable options that fit into your budget. 

Contact our team for reliable and professional service you won’t get anywhere else in the region. We know our professionalism and quick service will please. Call today to speak with a member of our staff to get all your questions and concerns answered. 

Residential and Light Commercial Service

Certified Technicians | Effective Solutions | Quick Installations | Dedicated Service | Attention to Detail
We Service All Brands | Replacement and New Construction | Authorized Rheem Dealer
Dedicated Service at Haarmann Heating & A/C in Wentzville, MO
Certified Technicians at Haarmann Heating & A/C in Wentzville, MO

Certified Technicians

Every technician on our team is certified. We work hard to ensure your HVAC is fully functioning at all times.
Ask about our Maintenance Contracts.

Prompt Service

Your time is valuable. That’s why we work quickly, so you can get back to life as normal. 


We come with over 40 years of experience to assist you. From fixing your furnace to providing a lasting solution for your A/C, we get everything done quickly and effectively. 

Contact Us Today!

Contact Haarmann Heating & A/C in Wentzville, MO, to receive quick and professional solutions for all your HVAC needs. Call (636) 828-4199 to speak with a member of our staff about scheduling an appointment.