Hours: We are open 24/7

2183 West Terra Lane, O'fallon, MO 63366

(314) 513-0385

How can we help?

At Reliable Heating and Cooling, we provide HVAC services throughout the following areas:

Reliable Heating and Cooling is proud to provide top-notch HVAC services to residents and businesses across Missouri. From system maintenance and emergency repairs to new installations, we strive to keep your HVAC systems operating efficiently year-round.

Chesterfield, MO

In Chesterfield, Reliable Heating and Cooling offers a full range of HVAC services, including air conditioning repairs, heating system installations, and routine maintenance. Our expert team ensures your home stays comfortable in all seasons.

Creve Coeur, MO

Creve Coeur residents rely on Reliable Heating and Cooling for efficient HVAC solutions. From AC tune-ups to furnace repairs, our skilled technicians are ready to tackle any heating and cooling challenge to ensure optimal performance.

Florissant, MO

In Florissant, Reliable Heating and Cooling delivers comprehensive HVAC services, including system diagnostics, energy-efficient upgrades, and regular system check-ups. We work to ensure your HVAC system runs smoothly throughout the year.

Maryland Heights, MO

Maryland Heights homeowners trust Reliable Heating and Cooling for high-quality HVAC services, such as heating and cooling installations, air quality improvements, and energy-efficient system maintenance. Our focus is on maximizing your comfort and efficiency.

O’Fallon, MO

In O’Fallon, Reliable Heating and Cooling provides expert HVAC services, including emergency repairs, system replacements, and seasonal maintenance. We are committed to keeping your home comfortable and your HVAC system running at peak performance.

St. Charles, MO

St. Charles residents turn to Reliable Heating and Cooling for reliable HVAC services, from furnace installations to AC repairs. Our team of experienced technicians ensures your system is energy-efficient and built to last.

St. Louis, MO

In St. Louis, Reliable Heating and Cooling offers a broad range of HVAC solutions, including new system installations, indoor air quality testing, and preventative maintenance. We prioritize your comfort with fast, reliable service.

St. Peters, MO

St. Peters homeowners count on Reliable Heating and Cooling for comprehensive HVAC care. From regular tune-ups to emergency repairs, we help ensure your heating and cooling systems work efficiently all year long.

University City, MO

In University City, Reliable Heating and Cooling delivers expert HVAC services, including energy-efficient upgrades, air conditioning repairs, and furnace installations. We provide dependable service to keep your home comfortable in any weather.

Webster Groves, MO

Webster Groves residents rely on Reliable Heating and Cooling for all their HVAC needs. Our services include heating and cooling maintenance, new system installations, and energy-saving upgrades. We’re here to provide comfort solutions that last.

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Customer Reviews
What our customers are saying

Had a small gas leak for a property I was helping a friend sell and we found out late last night. We reached out to Reliable H&C and Derrick was over first thing in the morning. He was friendly, professional and knowledgeable. He answered my questions with a smile. Derrick was a rock star. Will absolutely call him again. Bravo

Connor Kapp

Have been with them for more than 10 years. They provide exceptional service…from the time they call to remind you about setting an appointment to the actual service day. Derek (and all their other technicians) are knowledgeable, professional, prompt, and open to listening to questions and pay attention to details. Never had a problem with anything. Thank you for a job well done. Good pricing.

Seema Chouhan

We have used Reliable Heating and cooling for all of our heating and cooling needs. We needed some water heater work and Ralph came out and took care of it right away. Ralph was very professional and knowledgeable. He got the job done very quickly and everything is working great! I always recommend Reliable to family and friends. They truly are Reliable!

Chris Lopez

Reliable has installed and maintained our last 2 furnaces and AC. Our experience with them has been great. Just yesterday we had an issue with our AC. I talked to Marty and he said he’d have someone out the next day. They even were able to accommodate us with an afternoon call. Derrick arrived promptly on time and had us up and going again in 15 minutes (bad capacitor on the condenser unit fan motor). With the prediction of high 90 temps, we were so thankful to have AC working again.

Keith Scherer

I had a system malfunction on Sunday evening December 12, 2022 on my Carrier Infinity ICS purchased in 2008.I am a first time caller to Reliable. Marty called me back and had his Tech dispatched at 8 AM the next day. The unit had failed and was dangerous to use. He had a new system by the next morning. They installed it and I was completely satisfied with their service and response time. I overwhelmingly recommend Reliable and will be using them from now on.

DM

We had a emergency water leak problem with our AC unit in the basement of our recently purchased condo. Called Reliable and Derrick was there within a couple of hours. He was polite, knowledgeable, and friendly. Derrick quickly found the problem and repaired it. He also checked the system overall, pointed our some concerns and answered all my questions. I can’t say enough about how satisfied we were with Derrick and Reliable Heating & Cooling! We would definitely recommend them!!! Thanks again!!!!

Terry Mills

Moscow Mills, MO

Chesterfield, MO

Winfield, MO

Cottleville, MO