A Legacy of Comfort and Excellence

Reliable Heating & Cooling has been a cornerstone of the HVAC industry in St. Charles County, Missouri, for over two decades. Founded in 2001 by John and Mary Thompson, this family-owned business has grown from a small operation to a leading provider of air conditioning and heating services in the region.

Our Service Area

We proudly serve the following communities:

• O’Fallon, MO
• Saint Peters, MO
• Lake Saint Louis, MO
• Wentzville, MO
• Saint Charles, MO

Comprehensive HVAC Solutions

At Reliable Heating & Cooling, we offer a wide range of services to meet all your heating and cooling needs:

• Air Conditioner Repair
• AC Repair
• Air Conditioning Installation
• HVAC Installation
• Air Conditioner Service

Our team of certified technicians is equipped with the latest tools and technology to handle any HVAC challenge. We pride ourselves on our ability to diagnose and repair issues quickly and efficiently, minimizing downtime and discomfort for our valued customers.

Customer-Centric Approach

What sets Reliable Heating & Cooling apart is our unwavering commitment to customer satisfaction. We understand that a malfunctioning HVAC system can be more than just an inconvenience; it can be a health and safety concern. That’s why we offer 24/7 emergency services, ensuring that our clients never have to endure extreme temperatures for long.

Our dedication to excellence extends beyond our technical skills. We believe in building lasting relationships with our customers through honest communication, transparent pricing, and exceptional service. Whether you need a simple AC repair or a complete HVAC installation, we treat every job with the same level of professionalism and attention to detail.

Community Involvement and Environmental Responsibility

As a local business, we are deeply invested in the communities we serve. Reliable Heating & Cooling regularly participates in local events and supports various charitable initiatives throughout St. Charles County. We also recognize our responsibility to the environment and consistently strive to offer energy-efficient solutions that reduce our clients’ carbon footprint and utility bills.

Looking to the Future

As we continue to grow, Reliable Heating & Cooling remains committed to staying at the forefront of HVAC technology. We regularly invest in training for our staff and update our equipment to ensure we can offer the most innovative and efficient solutions to our customers.

Whether you’re in O’Fallon, Saint Peters, Lake Saint Louis, Wentzville, or Saint Charles, you can trust Reliable Heating & Cooling to keep your home or business comfortable all year round. Experience the difference that true reliability can make in your HVAC services.