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April 09, 2024

Expert AC Repair in Pasadena

Stewart Air Systems: Your Premier HVAC Service Repair and Replacement Provider in Pasadena, CA 

Welcome to Stewart Air Systems, where your comfort is our priority. With years of experience serving the Pasadena community, we're dedicated to providing top-notch heating and air conditioning services. Our commitment to quality service and customer satisfaction sets us apart. 

Our Services 

Air Conditioning Repair, Installation and Maintenance Pasadena, CA. 

Beat the heat with our air conditioning services. We offer installation, repairs, and maintenance to keep your home cool and comfortable all summer long. Our services include handling both residential and commercial HVAC systems, ensuring your space is always at the perfect temperature. 

Indoor Air Quality Solutions Pasadena

You know what it's like in those hot summer months when the air pollution from the entire LA & Riverside County basin collects in your backyard, right? Do you want an escape from that awful foul air, at least inside your home where you can be both cool and comfortable and breathe cleaner air? With Stewart Air you can breathe easier with our indoor air quality solutions. We provide advanced air filtration and air purification systems, smart thermostat installations, and humidity control solutions to improve your home's air quality. 

Smart thermostats are a game-changer in keeping a comfortable and healthy indoor environment, especially during those hot summer months when air pollution is at its peak. Here's how they can make a difference: 

  • Remote Control: With a smart thermostat, you can control your home's temperature from anywhere using your smartphone or tablet. This means you can adjust the settings to ensure your home is cool and comfortable before you even walk through the door. 
  • Energy Savings: Smart thermostats learn your schedule and preferences, automatically adjusting the temperature to save energy when you're away or asleep. This can lead to significant savings on your energy bills, all while keeping your home at the perfect temperature. 
  • Air Quality Monitoring: Some smart thermostats can check your indoor air quality, alerting you when levels of pollutants or allergens are high. This allows you to take action, such as activating your air purification system, to ensure you're breathing clean air. 
  • Integration with Other Smart Devices: Smart thermostats can be integrated with other smart home devices, such as air purifiers and humidifiers, to create a comprehensive indoor air quality system. This seamless integration ensures that all components work together to keep optimal air quality and comfort. 
  • Customizable Comfort: With features like geofencing and voice control, smart thermostats offer personalized comfort. You can set up zones in your home to target specific areas for cooling or heating, ensuring every room is just the way you like it. 

By installing a smart thermostat with Stewart Air, you're not just making your home more comfortable and energy-efficient; you're also taking a proactive step towards cleaner, healthier air. It's a smart investment for both your wallet and your well-being. 

Emergency HVAC Services 

HVAC emergencies can happen at any time. That's why we offer 24/7 emergency services to address your urgent HVAC needs promptly. We guarantee service within 24 hours of your call, ensuring your comfort is never compromised. 

New HVAC Technologies: Stay ahead of the curve and save on energy costs every day with our new HVAC technologies. We offer inverter technology, variable speed compressors, and smart home integration for enhanced efficiency and comfort. These technologies help increase energy efficiency, prolong HVAC equipment life, and provide customized comfort. 

Heating Services: Stay warm during the chilly months with our comprehensive heating services. From installation to maintenance, our skilled technicians ensure your heating system, including furnaces and heat pumps, runs efficiently. 

Additional Services: We also offer water heater installation, and other services to enhance the comfort and efficiency of your home. Our attention to detail and use of higher quality materials ensure that you get the most value for your investment. 

Why Choose Stewart Air Systems 

Choose Stewart Air Systems for our attention to detail, use of high-quality materials, and custom-designed systems tailored to your needs. Our skilled craftsmen are committed to delivering exceptional service. What makes us different is our focus on treating our employees well, ensuring a team of skilled craftsmen who are like family. We’ll treat you like family too. Every one of our installations is based on a custom design we develop specifically for you and your home. 

Benefits for the Buyer 

Investing in our services means greater value, improved indoor air quality, and reduced utility bills through energy-saving technologies. You'll enjoy a comfortable indoor environment with efficient systems that last longer and save you money. 

When to Call Us 

If you experience high utility bills, poor air quality, unusual noises, frequent system cycling, or have dirty or missing air filters, it's time to call us for expert HVAC service. These signs show that your HVAC system may need attention to ensure it runs efficiently. 


Hear from satisfied customers who have experienced the Stewart Air Systems difference: 

"We started using Stewart Air for the first time six years ago on a Saturday in the middle of winter when our heat went out. Justin squeezed us in at the end of his day last minute even though he was booked for weeks like everyone else I called that day... — Man Yip" 

"I was introduced to Stewart Air Systems through my old A/C Company who has since retired. As a property manager I rely on fast quality service and Stewart Air Systems has always delivered... — Stephan Watkins" 

"Recently my home needed two, separate, central HVAC systems considering our old ones were ancient and needed a complete overhaul. Steve and Justin with Stewart Air Systems came quickly to assess and provide options that included a new central system and mini-split options... — David Szymkowski" 

"We had a 20+year-old HVAC that needed to be replaced (3x5 tons) and I did my due diligence and interviewed five HVAC companies. Justin and Steve Stewart are very knowledgeable in their trade and they answered all my questions and gave me different options on various systems... — Peter Kang" 

Contact Us 

Ready for top-quality heating and air conditioning services in Pasadena? Contact Stewart Air Systems today at (626) 498-7770 • (626) 335-5496 or email us at Schedule your service or consultation and enjoy a comfortable home all year round.