A Legacy of Comfort and Quality

Reliable Heating & Cooling has been a cornerstone of the HVAC industry in the greater St. Charles County area for over two decades. Our journey began in O’Fallon, MO, with a simple mission: to provide top-notch heating and cooling services to our community.

Humble Beginnings

Founded by a group of experienced HVAC technicians, our company started as a small operation focusing primarily on AC repair and maintenance. As word spread about our exceptional service and expertise, we quickly expanded our offerings to include:

• Air conditioning installation
• HVAC installation
• Air conditioner repair
• Heating system services

Expanding Our Reach

As our reputation grew, so did our service area. Today, Reliable Heating & Cooling proudly serves:

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

Our commitment to quality and customer satisfaction has allowed us to become a trusted name in HVAC services throughout these communities.

Embracing Innovation

Over the years, we’ve stayed at the forefront of HVAC technology, continually updating our skills and equipment to provide the most efficient and effective solutions for our customers. From smart thermostats to energy-efficient systems, we’ve embraced innovations that help our clients save money and reduce their environmental impact.

Community Involvement

As we’ve grown, we’ve never forgotten our roots. Reliable Heating & Cooling remains deeply committed to the communities we serve, participating in local events and supporting area charities. We believe in giving back to the people who have supported us throughout our journey.

Looking to the Future

As we continue to grow and evolve, our core values remain the same. We’re dedicated to providing reliable, efficient, and affordable HVAC services to homes and businesses across St. Charles County. Whether you need a simple repair or a complete system overhaul, you can count on Reliable Heating & Cooling to keep you comfortable all year round.

Thank you for being part of our story. Here’s to many more years of keeping our community cool in the summer and warm in the winter!