5.0 Rated on Google
Stay Cool Climate Control
Dependable Air Conditioning Services
Instant Quote Replacement
Struggling with an unreliable air conditioner during the hottest days of summer can quickly make your home uncomfortable and stressful. Rising indoor temperatures, weak airflow, or unexpected breakdowns not only disrupt your comfort but can also lead to costly energy bills. Without the right attention, these problems can shorten the life of your system and leave you facing frequent repairs. Stay Cool Climate Control provides complete air conditioning services designed to keep your home cool, efficient, and comfortable all season long.
Stay Cool Climate Control provides complete air conditioning services in O’Fallon, MO, and the Greater St. Charles County area, designed to keep your home cool, efficient, and comfortable all season long. Our technicians specialize in AC installation, repair, maintenance, and replacement, using advanced diagnostic tools and trusted equipment to ensure reliable performance. With expert care and a customer-first approach, we deliver cooling solutions that fit your home, your budget, and your family’s comfort needs. Call today to schedule your air conditioning service and enjoy peace of mind all summer.
Air Conditioning Services We Provide
Stay Cool Climate Control delivers a full range of air conditioning services to keep your home cool and comfortable during the hottest months of the year. From brand-new installations to fast repairs and ongoing maintenance, our team ensures your cooling system performs at its best. Here’s how we can help:
Air Conditioning Installation
We provide professional AC installation services designed to match your home’s size, layout, and comfort needs. Our team installs energy-efficient cooling systems from trusted brands that deliver reliable performance for years to come. With the right setup, you can enjoy consistent comfort and reduced energy costs.
Air Conditioning Repair
When your cooling system isn’t working properly, our skilled technicians are ready with fast and dependable air conditioning repair services. We diagnose issues like weak airflow, warm air output, or unexpected noises to get your system back up and running. By addressing problems quickly, we help you avoid costly breakdowns and extended discomfort.
Air Conditioning Replacement
If your current system is old, inefficient, or constantly breaking down, it may be time for an AC replacement. We guide you through the process of choosing a new system that offers improved efficiency, reliability, and comfort. Our installation ensures a smooth transition so you can enjoy worry-free cooling right away.
Air Conditioning Maintenance
Routine AC maintenance is essential for preventing breakdowns and extending the life of your equipment. Our maintenance services include thorough inspections, cleaning, and tune-ups to keep your system operating at peak performance. Regular service also helps improve energy efficiency and maintain consistent comfort throughout your home.
Schedule Your AC Maintenance With Us Today!
Why Choose Stay Cool Climate Control for Air Conditioning Services
Selecting the right partner for your cooling needs ensures that your home stays comfortable, efficient, and stress-free. At Stay Cool Climate Control, we’ve built our reputation in O’Fallon, MO, and the Greater St. Charles County area by combining technical knowledge with a neighborly approach that makes every customer feel supported. Our team goes beyond quick fixes to deliver long-term solutions that help your system run at its best. With every service call, we aim to bring you comfort, reliability, and confidence in your air conditioning system.
- Local Knowledge: We understand the demands of Missouri summers and design cooling solutions built for our climate.
- Preventative Approach: Our maintenance and repair services are focused on preventing costly breakdowns before they happen.
- Customer Education: We take time to explain your options so you can make informed decisions about your cooling system.
- Emergency Readiness: With 24/7 availability, we’re here when you need urgent air conditioning services the most.
- Added Value: From coupons and seasonal specials to referral rewards, we help you save while keeping your home cool.
Schedule Your Air Conditioning Service Today
Don’t wait until the next heat wave to make sure your cooling system is ready. Stay Cool Climate Control delivers dependable air conditioning services that keep your home comfortable and efficient all summer long. From new installations to emergency repairs, our team provides solutions that fit your needs and budget. Call us today or request your appointment online to schedule professional AC service you can count on.
$25 OFF
First Service CallOffer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.
Expires: Feb 28, 2026
Expires: Feb 28, 2026
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Testimonials
Hear from Our Satisfied Customers
Travis was great! He not only worked quickly, but talked me through everything he was doing, gave maintenance tips and made sure I knew everything I needed to know before he left! He was friendly, prompt, and so helpful! I would absolutely recommend StayCool for any HVAC needs!
Jenna Whitmore
2 days ago
Always a great service from these guys. Jacob was out and went through my furnace and cleaned everything up. Very professional and easy to talk to. I’ve had them servicing my hvac for about 6 years now and they have always been able to make things work or work better.
Bailey Dickherber
2 days ago
On Jan 16, 2026 I called Stay Cool Climate Control to get a quote on replacing our old HVAC because the furnace was showing signs of imminent failure. I called the office in the morning, and Jeremy was able to come that afternoon. Jeremy looked at the old system and offered us multiple replacement choices. A few days later, after checking with 2 other companies, we concluded that Stay Cool was the best choice for us in terms of cost, efficiency, and equipment quality. We are not disappointed.
Installation was scheduled for the following Tuesday.
Brandon, Dalton, and Trey arrived on time early that morning, and after seeing the old system began removing it. Even though the outside temperature was in the teens and there was snow on the ground they worked tirelessly all day. By late that afternoon we had a new, highly efficient HVAC system up and running.
Our thanks also go to Carter, who has answered many questions and was able to make the quick schedule possible.
Larry Pangborn
2 days ago
Very professional, fixed fast, highly recommend.
Scott Zoellner
2 days ago
HIGHLY Recommend. Our furnace quit right as a winter storm rolled in, and they sent someone out within an hour! Dalton figured out our issue and got our unit to work for just a bit longer until our replacement could be scheduled. Jake and Skylar handled our replacement. The office will send names and pictures of who is coming to your home, which made me feel very safe. Every person we encountered on the phone or in person was professional, friendly, and knew what they were doing. Pricing was fair and transparent, and they helped us get financing. Never felt rushed or pressured. A+ communication.
Lindsey Vazquez
4 days ago
On time arrival to service my furnace for the winter. Travis was very courteous. He carefully reviewed his findings and answered all of my questions. As a realtor and homeowner, I strongly suggest that your HVAC system be checked, serviced and cleaned twice yearly. Use a professional like Stay Cool Climate Control.
Mike Bronowicz
1 week ago
Brandon and Trey were awesome!!!
Anne Seiler
2 weeks ago
Jacob A was friendly and knowledgeable! Highly recommend this family owned company! Thank you, Tim & Cheri Dickherber/ Missouri Irrigation
Cheri Dickherber
2 weeks ago
Very trustworthy, quick to respond and explained everything really well. 👏
Missy Cissell
2 weeks ago
Dalton was very professional and did an excellent job! Dalton left to get a part and returned right a way to complete the job! Excellent work!
David Schottel
3 weeks ago
Dalton was very helpful, and fast
David Anderton
3 weeks ago
Dalton came out for our annual furnace maintenance and did amazing!
McKenna Lee
3 weeks ago
Called 3 companies early in the morning. Stay Cool was able for me to take pics of the area while other companies wanted to come out 3+ days later to look while we had no hot water. Stay Cool was able to come out the same day which was a huge plus for us since we had not had hot water for 2 days already. Their price was also $350 and $700 cheaper than 2 other companies I have had in the past. Travis and Carter showed up on time and walked me through the tearing out and install of the new heater. They were courteous of their wet shoes with slips if they had to go to their truck outside when tearing out the old water heater. Carter, with our older heavy door headed to the garage it doesn't take much to close it. Please be easier in the future. There was an issue with the old water heater being taken up the steps with a dolly that scrapped all the way up the steps in pic 2. I called the main office, they apologized, and they sent Travis back out the next day to repaint. Ill still keep them in mind for future projects. thank you.
Steve Craig
3 weeks ago
Dalton did our annual heater maintenance check, and was pleasant, professional and knowledgeable. We have used Stay Cool for a few years and have always enjoyed their service.
Clare Trim
4 weeks ago
We had a complete system installed yesterday and Nathan Blunt was the best technician we have ever had. He was very knowledgeable about the system over all it’s was a great experience,
Michael Statler
4 weeks ago
Peter was on time, courteous, and very knowledgeable. I’d absolutely recommend using Stay Cool Climate Control for all HVAC needs.
Mark VanRonzelen
4 weeks ago
Stay Cool Climate Control was fast, on time, great service!! Appreciate your customer service! Jacob Austin was great, very knowledgeable, professional and takes pride in his job! Thank you!! I purchased the Maintenance plan, which is a good price!
Patrick Grimes
1 month ago
I have used Stay Cool for several years on my commercial and residential properties. They are always efficient, proficient and punctual. I called this morning and my technician Jacob was there within an hour, he had us back up and running in no time. Jacob was polite and professional. I highly recommend Stay Cool 😎
Patricia Senn
1 month ago
Schedule Your Service with Stay Cool Climate Control
Don’t hesitate to reach out to us for the comprehensive solutions you need. We are happy to discuss any concerns you may have and will provide the honest, professional advice you need to help you make the best decision for your home. Contact us today to schedule a free second opinion, request an estimate, or book an immediate appointment for heating and air conditioning services in O’Fallon, Missouri.
