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: Jul 31, 2026

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Testimonials

Hear from Our Satisfied Customers

My tech that came out was above and beyond the best. On a holiday and in the heat. He was amazing.
bartonr62001
3 days ago
First of all, a HUGE thanks for Stay Cool Climate being able to schedule same day service during the heat wave and the upcoming holiday weekend! Alex came out today and did a great job diagnosing and communicating the issue we were having with our AC. He fixed it up quickly and made a few recommendations with no added pressure. After the work was completed we decided to sign up for the preventative maintenance program, which was an easy decision after the experience we had with this repair. Highly recommend!
Erin Halbert
3 days ago
Had a new a/c installed by Neil and Landon. They were very efficient and answered all my questions and did a great job. Recommend Stay Cool Climate for all a/c needs. Mary in the office is very nice and kept me updated thru the entire process.
Dottye Conrad
3 days ago
Stay Cool Climate Control was able to come out quickly(same day) to help save the day! Here we are in this insane heat and my air conditioner needed love, like lots of it. Thank you Dalton for being kind and helpful.
Stephanie Brueggeman
4 days ago
My air conditioner went out on Wednesday afternoon, and Stay Cool Climate Control had someone at my house first thing Thursday morning. Dalton was my technician, and he did an excellent job. He was professional, friendly, explained everything clearly, and had my AC up and running quickly. I really appreciated the fast response and great customer service. If you’re looking for a reliable HVAC company, I highly recommend Stay Cool Climate Control!
Lindsay Castello
5 days ago
Had a thermostat issue and Dalton swiftly took care of the problem and replaced it for us. He was professional and kind.
Bailey Bartoni
5 days ago
Stay Cool helped us out in a big way, was there the morning after I contacted them with a technician, helped our existing AC make it a few more days until they could install a new one. All of the technicians and the installers who came were on time or early and always explained everything very well.
Nathan Dickerson
5 days ago
Great company to work with. Excellent service and employees are really really nice.
Archway Industrial Coatings
6 days ago
Dalton was very nice and very knowledgeable. He did a good job ,I would recommend this company.
Nina McCutchen
6 days ago
Very quick and professional service i called at 10pm and had a cold house after work the following day, and they even called to try and get my repaire done earliy than scheduled because they had an opening. Also what's this i hear about free tacos? #TACOBOUTUS
joe maltzman
6 days ago
Prompt and always professional! Alex was able to quickly diagnose what was wrong and fixed it in under an hour. Love this company so much!
Angela Blake
7 days ago
From start to finish, the process was very easy. Every employee that my family dealt with was very nice and personable. Scott, our salesman was very informative and answered every question I had. I would recommend Stay Cool to anyone who wants professional service with even better customer service. Well done!
Cliff House
1 week ago
Came same day as I called and got my AC back up and running! Will be using them again!
Price Powelson
1 week ago
Stay Cool Climate Control was amazing! On the hottest day so far this year, they were able to repair my AC unit and give me great, sound advice for replacement and financing. Alex did a fantastic job and was so kind, patient, and courteous with all of my questions. I highly recommend them!
Amanda Halbert
1 week ago
Travis did a good job of explaining what the issues were and giving me options. He left it up to me as far as what I wanted to do instead of pressing into a decision. Would recommend.
Brian Manning
1 week ago
Alex was great and came out on short notice. He walked me through each step and was extremely knowledgeable.
Jason Hardebeck
1 week ago
Very impressed with the young man that came out he put covers over his shoe. He was very professional and I look forward to seeing him in the fall. I think the price they charge was extremely fair. I didn’t think they were trying to push something on me, I’ve used them before I highly recommend them.
Marc Savory
1 week ago
I set this appointment last night. Now, by COB today, my AC issues have been fixed and I'm good to go. Prompt service and explanation I can understand. That is what I love about this company.
Eric Barnett
2 weeks 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.