St. Louis Heating and Air Conditioning

Keep your home cozy, comfortable, and efficient with Arnold Air.

Home with HVAC system

Your Single Source for Residential Furnace Repair Services, and More

When it comes to your home, comfort and safety are paramount. Our residential heating and cooling services are designed to ensure your living space remains comfortable and safe throughout the year. Whether it’s a chilly winter night or a scorching summer day, we have you covered with heating, repair, and installation services, as well as air conditioning solutions to keep your home’s climate just right.

However, our top-notch residential HVAC systems don’t just focus on comfort. They are also designed for energy efficiency. A properly maintained system can significantly reduce your utility bills while contributing to a greener planet. Our team of certified experts will help you choose and install an energy-efficient system tailored to your home’s unique needs.

Did you know that many HVAC manufacturers require regular maintenance to keep their warranties valid?

With Arnold Air and More, you not only get high-quality Trane HVAC systems, but you also have the assurance that your investment is protected. Our team provides regular maintenance services to keep your HVAC system in top shape, ensuring you don’t miss out on any warranty benefits.

Our Residential Air System Solutions

Elevate your home’s comfort with our range of specialized services.

Residential Heating Repair and Installation

Trust our experts to ensure your home stays warm and cozy, even during the coldest winter days. Our heating installation services provide reliable warmth when you need it most.

Residential Cooling Repair and Installation

Keep your living spaces refreshingly cool in the heat of summer. We install and repair air conditioning systems that deliver energy-efficient cooling, maximizing your comfort.

Standalone Ductless HVAC Solutions

Gain versatility in controlling your home’s climate. Our ductless HVAC units offer efficient and quiet solutions, perfect for room additions and other spaces.

St. Louis Emergency HVAC Repair

Count on us for swift and efficient 24/7/365 emergency HVAC repairs. We’re just a call away to tackle unexpected heating and cooling problems to keep your family comfortable.

Trane HVAC System Installation

As proud partners with Trane, we offer installation services for one of the most trusted HVAC brands in the nation. Experience the reliability and efficiency of Trane systems.

Regular and Warranty Maintenance

Extend your HVAC system’s life and maintain peak efficiency. Our routine maintenance and warranty services ensure you’re getting the most from your heating and cooling equipment.

Let’s Revamp Your Home’s HVAC

Elevate your home’s comfort with Arnold Air and More’s residential HVAC solutions. Our expert team specializes in ensuring your comfort, safety, and energy efficiency. Whether you need heating repair, air conditioning installation, ductless HVAC solutions, or emergency HVAC repair, we have you covered.

Why We’re the First Choice for Heating and Air Conditioning in St. Louis

  • Locally-Owned and Operated Since 2006

    As a locally-owned and operated company, we have deep roots in St. Louis heating and air conditioning. Our commitment to the community runs strong. We take pride in serving our neighbors and ensuring their homes are comfortable and safe. With 157 years in the HVAC industry, we’ve established ourselves as a reliable and trustworthy partner for all your heating and cooling needs.

  • Certified, Expert Installers You Can Count On

    Our team consists of certified HVAC experts who bring years of experience to the table. We know the ins and outs of residential HVAC systems, and our commitment to excellence ensures that every installation and repair is completed to the highest standards. You can trust us to deliver results that keep your home comfortable, efficient, and safe.

  • We Install America’s Leading HVAC Systems

    We understand the value of superior products. That’s why we’ve partnered with Trane, America’s most trusted HVAC brand for nine consecutive years. Our installations utilize top-tier Trane HVAC systems, known for their quality, durability, and efficiency. We believe in providing the best to our customers to guarantee long-lasting satisfaction.

Read Testimonials for Proof of Our Excellence

We’re immensely proud of the relationships we’ve built with our homeowners and the impact we’ve had on their daily lives. Don’t just take our word for it: read the experiences of others who’ve entrusted us with their HVAC needs:

We appreciated the great job Mike & Matt did when installing our new furnace and A/C unit yesterday in our home. It was 5 degrees outside when they started! They worked nonstop to get the new furnace up and running as well as the outside A/C unit installed. They are friendly, courteous, knowledgeable professionals. Their pricing is competitive. Very happy that we chose them again! We highly recommend them!


We have used Arnold Air and More for a few years for repairs and maintenance on our old system to the newly purchased HVAC system and humidifier this year. We have been impressed with every experience. Prices are reasonable, technicians are friendly and professional, the company is responsive and helpful! I definitely recommend Arnold Air.


Amazing! Could not have asked for better service and performance from Mike and Arnold Air and More. We were provided with a great system and a great price to go with it. Service was quick, efficient, on time and our house is already cool. We couldn’t be happier!! We would not even bother calling anyone else. Thank you Mike and Arnold Air!