HVAC Services Wentzville MO | Call Johnson Heating and Cooling
223 N Callahan Rd, Wentzville, MO 63385
Company Overview
Johnson Heating and Cooling is a family-owned HVAC company serving Wentzville and the surrounding communities. Founded on the principle of treating customers and employees with the same care we'd expect for our own families, we've built long-term relationships through reliable service and honest communication. Our licensed technicians are dedicated to providing professional installation, repair, and maintenance for all brands of heating and cooling equipment. We believe in educating our customers about their systems to ensure safety, efficiency, and comfort in their homes. Whether it's a routine maintenance check, an urgent repair, or planning a new installation, our team approaches every job with a focus on quality workmanship and clear, friendly service.
Key Services
- HVAC installation or replacement
- HVAC system repair
Common Questions
What is included in your HVAC installation or replacement service in Wentzville?
Our installation service is a comprehensive process. We begin with a detailed assessment of your home's heating and cooling needs, considering factors like size, insulation, and your family's comfort preferences. We then help you select the right system, whether it's a furnace, air conditioner, heat pump, or geothermal unit, and handle the full professional installation. Our licensed technicians ensure optimal operation and provide clear guidance on using your new system efficiently. We service all brands and focus on a clean, precise installation to maximize performance and longevity for your Wentzville home.
How do you handle HVAC system repairs, especially for older equipment?
Our approach to repairs starts with a thorough diagnosis by our licensed technicians. We service all brands and models, and our goal is to provide a lasting, cost-effective solution. We'll clearly explain the issue, your repair options, and any recommendations for maintenance or future upgrades. Our philosophy is to treat you as we'd want to be treated, which means honest advice—if a repair isn't in your best interest, we'll tell you. For many Wentzville residents, this trusted approach has kept their systems running reliably for years.
Can you help with poor indoor air quality and smart thermostat problems common in our area?
Absolutely. Many Wentzville homes experience these issues. For air quality, we offer and install products like humidifiers and electronic air cleaners that integrate directly with your HVAC system to reduce allergens, dust, and dryness. For smart thermostat problems—whether it's connectivity issues, programming difficulties, or compatibility—our technicians are trained to diagnose and resolve them. We can also educate you on how to use these devices to improve your system's efficiency and your home's comfort, turning common local frustrations into solved problems.
Business Location & Hours
| Mon: | 8:30 AM - 5:00 PM |
| Tue: | 8:30 AM - 5:00 PM |
| Wed: | 8:30 AM - 5:00 PM |
| Thu: | 8:30 AM - 5:00 PM |
| Fri: | 8:30 AM - 5:00 PM |
| Sat: | 8:30 AM - 5:00 PM |
| Sun: | 8:30 AM - 5:00 PM |



