Stay Cool Climate Control

Weldon Spring

Heating & Air Conditioning in Weldon Spring

Whether we’re heading down Highway 94 or navigating the quiet residential turns near Weldon Spring City Park, we know this area by heart. We’ve been keeping busy on the streets of Weldon Spring, helping our neighbors maintain comfortable homes despite the Missouri humidity and freezing winter fronts. You’ve likely spotted our white trucks parked in the driveways of the neighborhoods surrounding Persimmon Woods Golf Club or grabbing a coffee near the intersection of I-64 between service calls. We understand the unique environmental factors in St. Charles County and how they impact your home’s comfort systems.

Reach out to our crew today to ensure your HVAC and water systems are performing at their best.

Heating & Cooling Services

Our boots are on the ground across Weldon Spring, providing everything from routine inspections to complex HVAC repair. We specialize in high-performance equipment that stands up to the variable local climate.

Contact us now to schedule an appointment with a trusted HVAC company.

Water Heater Repair & Installation

Weldon Spring homes rely on consistent hot water for daily life. We provide expert water heater services to address everything from minor leaks to full system failures.

  • Emergency hot water repair to restore your comfort quickly.
  • Modern tankless water heater replacement for space-saving efficiency.
  • Durable water heater installation for new and existing homes.

Let us handle your water heater needs with professional, timely service.

Indoor Air Quality Solutions

Given our proximity to the conservation areas and Missouri River, pollen and outdoor allergens can easily find their way inside. We offer indoor air quality upgrades to keep your home’s air clean and healthy.

Speak with our team to learn how we can improve the air you breathe every day.

Schedule Your AC Maintenance With Us Today!

Why Choose Stay Cool Climate Control?

We have become a fixture in the Weldon Spring community by treating every home with the expert care it deserves.

  • 24/7 Emergency Service for comfort crises that happen after hours.
  • Deep knowledge of Weldon Spring’s residential infrastructure.
  • Background checked and highly trained technicians.
  • Clean, professional service with respect for your property.
  • Clear communication and straightforward pricing.

Schedule your next HVAC or water heater service with Stay Cool Climate Control today.

$79

Tune Up

AC or Furnace

Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.
Expires: Jun 30, 2026

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Testimonials

Hear from Our Satisfied Customers

Trevor was my service tech. I was highly impressed by that young man knowledge and professionalism. I chatted with him briefly and it's rare to find someone that young to be so humble and respectful. My heart is truly full, I raved highly about him to my wife. #SaluteToYouTrevor Calvin
Calvin Payne JR
4 days ago
Peter was very helpful, knowledgeable and explained all options to fix the problem.
Travis Carter
5 days ago
We had a great experience. Our A/C stopped working while my family was out of town on vacation, and we had someone staying at our house to watch our dogs. Stay Cool was able to coordinate everything remotely, diagnose the issue, and get the unit repaired and running again without us having to be there. Their communication was excellent throughout the entire process, and they made what could have been a stressful situation completely hassle-free. It’s hard to find a company you can trust when you’re hundreds of miles away, but Stay Cool exceeded our expectations. We came home to a cool house and happy dogs. Highly recommend their team for their professionalism, responsiveness, and quality service!
Hayden Knickmeyer
6 days ago
Alex was great! Honest, thorough, knowledgeable and extremely patient.
Kevin McKeon
2 weeks ago
Our tech, Alex, was great. On time, great communication, knowledgeable and honest. He was quicknto detrmine thebissue, and we were happy to have him in our home.
Chris Ravenscraft
2 weeks ago
Dalton was great. Arrived on time. Polite. Did my spring tune up and installed a new thermostat Polite very efficient.
Anne S
2 weeks ago
Alex did a great job!
Cathy Gudermuth
2 weeks ago
Very knowledgeable. Same day service was great (unexpected). Annual program great fit for us.
Charlie Levine
2 weeks ago
Very well mannered worker. Was above and beyond with speaking with us on things.
Bruce Hymes
3 weeks ago
Punctuality, polite, clean and efficient. Plus, Dalton made extra time to help dismantle and remove an old gas pit. BIG thanks!
Rose
3 weeks ago
Technician arrive promptly when said they would and arrived on sight 3 hrs after making appointment. My Technician Travis found my issue promptly and every Courteous.
Doug Miller
4 weeks ago
The tech Dalton was professional and knowledgeable. There were no hidden fees, price was honest. I will call them again if needed!
Rachel B
4 weeks ago
Thank you Alex. Really appreciate your hard work today. Did a great job. System is running well.
Jon Godbey
4 weeks ago
Dalton was very personable and helpful in explaining the process and any addressing my questions in a polite and direct manner. Very impressed with his professionalism.
John Gialouris
1 month ago
Came on time, very receptive to all questions, gave me heads up on what COULD go wrong in the near future. Great company to get your HVAC service needs
Maaz Ahmed
1 month ago
I could not be more pleased!!! Trey and Neal were awesome, very professional. Arrived at 8:00 am and left at 4:00 pm... no breaks. They replaced my HVAC system and installed a new water heater. It was a great experience, both were very polite and neat. Thank you!!
sandy coughlin
1 month ago
My service was excellent good job 😄
Mary Wilson
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.