Business Details
28 Years
experience
Emergency
services
Your Trusted HVAC Partner in St. Charles, MO
Since 1998, Chowning Heating and Cooling has been dedicated to providing comprehensive heating, cooling, and gas inspection services to residential and light commercial clients across St. Charles County, St. Louis County, and surrounding areas. Founded by Darren Chowning, our company was built on the principle of delivering quality technical expertise at competitive prices while maintaining a strong commitment to customer satisfaction. Over two decades later, we continue to uphold these values, expanding our offerings to include specialized gas inspections for home sales in 2014. Our team treats every client and employee as part of our extended family, ensuring personalized service and transparent communication throughout every project. With more than 5,000 gas inspections completed annually for 40 home inspection companies and hundreds of real estate agents, we have established ourselves as a trusted local leader in HVAC services.Our technicians combine extensive experience with advanced training to address both routine maintenance and complex system challenges. We maintain strict adherence to safety codes and industry standards while offering flexible scheduling options, including emergency service for urgent heating or cooling needs. Our Full Service Plan provides added value through biannual maintenance visits, repair discounts, and priority response times. From single-family homes to commercial buildings, we approach every job with the same dedication to excellence that has defined our company since its inception. Our motto, 'Better Service at a Better Price,' reflects our ongoing commitment to balancing affordability with superior workmanship.
Services
Heater Repair
Gas Inspections
A/C Repair
System Installation
Zoning Systems
Duct Installation
Details
- Year established: 1998
Highlights and features
- 20+ years of HVAC experience serving St. Charles and St. Louis counties
- Family-owned business treating clients like extended family members
- Completes 5,000+ gas inspections annually for real estate transactions
- Offers 24/7 emergency service for urgent heating/cooling needs
- Certified technicians with expertise in all major HVAC brands
What people say
Always reliable
Polite
Professional
Extremely knowledgeable
Services
Heater Repair
We repair all types of heating systems including gas furnaces, electric furnaces, boilers, and heat pumps. Our technicians service all major brands and models, ensuring efficient operation through expert diagnostics and quality parts replacement. Regular maintenance extends system lifespan while emergency repairs restore comfort quickly during critical failures.
Gas Inspections
Specialized gas safety inspections for home sales examine fuel lines, shutoff valves, and appliance connections. Our certified technicians identify code violations like improper TPRV termination and missing drip legs. We provide detailed reports to real estate agents and homeowners, ensuring compliance with safety standards during property transactions.
A/C Repair
Our team services all air conditioning brands and models, addressing refrigerant leaks, compressor issues, and electrical component failures. We maintain comprehensive parts inventory for immediate repairs, minimizing downtime during hot weather. Regular maintenance optimizes efficiency while emergency service restores cooling capacity for residential and commercial clients.
System Installation
We install complete heating and cooling systems for new construction, home additions, and system replacements. Our experts recommend energy-efficient models matched to property size and climate needs. From single-family homes to commercial buildings, we ensure proper sizing, duct integration, and code-compliant installation for optimal performance and energy savings.
Zoning Systems
Custom zoning solutions address temperature inconsistencies in multi-level homes. Our installations use motorized dampers and programmable thermostats to create independent climate zones, improving comfort and energy efficiency. This system is ideal for homes with second floors or rooms that require different temperature settings throughout the day.
People
Darren Chowning
Owner
Founder Darren Chowning established the company in 1998 with a commitment to quality service and technical excellence. With over 25 years in the HVAC industry, he oversees operations while maintaining direct client relationships. His leadership emphasizes continuous technician training and community-focused business practices.
Questions
What HVAC services do you offer?
We provide heater repair, A/C repair, system installations, gas inspections, zoning systems, and duct installations for residential and commercial clients.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service for urgent heating and cooling issues outside regular business hours.
Which areas do you service?
We primarily serve St. Charles County and St. Louis County, with additional service available in surrounding Missouri regions.
What are your service call rates?
Standard calls range from $90-$105 (St. Charles/St. Louis areas) during business hours, with afterhours rates at $150-$170.
Do you offer maintenance plans?
Our Full Service Plan includes biannual maintenance visits, 15% repair discounts, and priority service for $189 annually (plus $99 per additional system).
What gas inspection pricing applies?
Gas inspections cost $130 for homes under $700k, $190 for higher-value properties, and $190 for multi-family units.
