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!

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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

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Testimonials

Hear from Our Satisfied Customers

I have been working with Stay Cool since they opened their doors. They are always on time, knowledgeable, and always there to help! I will continue to recommend them to all my neighbors and family members.
Andrew Swallow
2 days ago
Nate and John did a wonderful job, very professional.\nExtremely happy with the job they did. Forgot to mention that.They also have a great service team that I have had coming here now 5or six years
that also do a great job. Thanks a lot guys
david collins
3 days ago
Our thermostat wouldn't work and our house was getting very hot. With animals inside that wasn't an option to stick with and we needed help. Alex the technician came out and found the real problem. Fixed everything and was very friendly and knowledgeable. We will definitely keep this company's information for any future issues.
Whittney Lee
3 days ago
Need to check e-mailds before sending then out.
JOSEPH PECORARO
4 days ago
Punctuality, polite, clean and efficient. Plus, Dalton made extra time to help dismantle and remove an old gas pit. BIG thanks!
Rose
1 week ago
Stay Cool has been an incredible company to work with. Their service is always amazing, prompt and thorough. Purchased our second full system from them and installation team was incredible. Very detailed, left the area spotless. Great job Stay Cool Team!!!
Shane Pickering
2 weeks ago
First time customer, Dalton came by and I was impressed with his service he did a wonderful job and I will be using stay cool in the future.
Patti Reinkemeyer
2 weeks ago
What a great experience! They were knowledgeable, courteous, respectful and on time! They talked me through all of my options with no pressure, only genuine concern for my needs. The install crew was awesome! So clean, you would never know they were here!! My new system is performing well and I look forward to a long relationship with this company! And, TACOS!!
Jerany Jackson
2 weeks ago
Travis has been to our house twice now and both times has been very thorough and helpful! Although you never want to call a maintenance technician, Stay Cool is one I’ll keep on file and recommend to everyone.
Elizabeth Richards
2 weeks ago
Travis was very helpful with our regular maintenance, and walked us through when we needed a new system.
Lori Godby
3 weeks ago
Great company to deal with. Dalton was great from Stay Cool. He Answered all my questions and was knowledgeable.
Neil Johnson
3 weeks ago
Alex was awesome! He came out for my AC and heating tune-up, cleaned my humidifier, and somehow managed to explain everything in a way that actually made sense to me. He was super thorough, answered all my questions, and made sure I actually understood what was going on with everything before he left.

Bonus points for explaining it all without losing me somewhere along the way 😂
Ashley
3 weeks ago
We love the technicians and service from Stay Cool. Alex was our guy this time around and he was great. They are friendly, honest, and knowledgeable. Even with our yearly checks, they never disappoint.
Courtney Simon
3 weeks ago
We have the bi-annual maintenance plan through Stay Cool. We moved into our 100 year old house last year. I found their info on the furnace and called to see if they could still service our HVAC. Our address was still in their system and they gave me a complete rundown of installation dates, services provided and service plans. Having just moved out of another home in which we had to (expensively) replace the HVAC as a condition of sale, I took them up on the plan. The techs (most recently Alex Larson) have all been professional, informative and they all dig our dogs! Happy to recommend them.
Mike Brannon
3 weeks ago
I highly recommend Stay Cool Climate Control. Everyone from the office to the technician is extremely courteous and professional. I highly recommend Stay Cool Climate Control.
Michelle McLaughlin
3 weeks ago
They made a special effort to help me out during a high volume period of service calls due to 100 plus degrees weather. It all worked out and i was up and running within 3 hrs of calling them.
mike whalen
1 month ago
I came home to find AC blowing warm air, so I called to schedule an appointment. Dalton and Landon showed up 40 minutes later. They diagnosed the problem, had it fixed and my AC serviced within 45 minutes. They checked the whole HVAC system to make sure everything was functioning properly. They were professional and tried to keep the price as low as possible. I am very happy with the service I received.
Juli Hansen
1 month ago
Excellent Service, Very Quick, and Professional, What was quoted was what was billed no surprises, cannot recommend enough! They are the best around!
Murika13
1 month ago
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    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.
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