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Advanced Heating & Air Conditioning offers professional indoor air quality solutions, including air purification, duct cleaning, UV light systems, and whole-house ventilation, to improve the air you breathe and enhance your home's comfort. Our customized solutions help reduce airborne allergens, dust, bacteria, mold spores, and other pollutants, creating a cleaner, healthier indoor environment for your family.
Founded in 2008, Advanced Heating & Air was built on a simple principle: treat every customer like family and every home as if it were our own. For over 17 years, we've proudly served homeowners and businesses throughout Temecula Valley and the surrounding communities with honest recommendations, quality workmanship, and exceptional customer service.
Leading our team is owner Steve Shettleroe, who brings more than 29 years of hands-on HVAC experience to every project. Throughout his career, Steve has seen the industry change dramatically, but one thing has remained constant—his commitment to doing the job right the first time. His extensive knowledge and passion for helping customers have become the foundation of the company's reputation.
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SERVICE
Fast, hassle-free HVAC service from Factory Authorized and EPA Certified technicians, with same or next-day appointments often available.
INSTALLATION
Expert HVAC installations completed with quality workmanship and attention to detail.
TECHNOLOGY
Advanced heating, cooling, air purification, and humidity control solutions designed for greater comfort and energy efficiency.
PEOPLE
Highly trained professionals committed to exceptional service, ongoing education, and customer satisfaction.
We Service










Air Conditioning Services
Our expert technicians specialize in AC installations, repairs, and routine maintenance to keep your home cool and comfortable when temperatures rise.
Heating
Services
We specialize in heat pump & furnace installation, repair and maintenance, ensuring your home stays warm and cozy during the colder months.
Indoor Air Quality Solutions
Breathe easy with our indoor air quality services, including air purifiers, humidifiers, and ventilation solutions to create a healthier living environment.
Heating
Pump
Provide both heating and cooling, so recognizing early warning signs can help you avoid costly repairs and unexpected system failures
Mini
Splits
Professional mini-split installation, repair, replacement, and maintenance services for efficient, customizable heating and cooling without the need for ductwork.
Schedule an Appointment with Your Local HVAC Company in Murrieta, CA Today
What Our Customers Say About Us
EXCELLENT
Based on 346 reviews
Posted on Google![]()
clayton hawranikTrustindex verifies that the original source of the review is Google.
Great workPosted on Google![]()
David GuyTrustindex verifies that the original source of the review is Google.
Honest and stands by their work.A+++Posted on Google![]()
Tim PytellTrustindex verifies that the original source of the review is Google.
Danny was great.Posted on Google![]()
Aaron WyantTrustindex verifies that the original source of the review is Google.
We have used Advanced Heating & Air to help with our regular maintanence and repairs on both our heating and A/C units over the years (been in this house for 16 years). They have always been kind, trustworthy, and dependable. The time had come for our 23 year old downstairs A/C unit to be replaced (it was on it's very last leg). At first they gave us all the options and were very open and honest about it. Ultimately I knew it was best for us to just replace it. They talked us through it and explained everything and answered all of our detailed questions. They came back out to do all the necessary measurements to ensure the install day would be seamless. On the day we scheduled they were here on time and in force. They pulled up with two very professional looking vans and all the parts, tools, and equipment they would need. They layed down mats throughout the house to protect our carpet/flooring and they were very respectful of us and our things as they worked throughout our house to replace vents and returns along with accessing our attic to replace the heating exchange as well as the entire A/C unit and outside condenser. As the day progressed they explained things to us and were very respectful and kind. They caulked all the vents/registers that they replaced and installed our new ecobee thermostats for us and walked me through registering for the app and setting up the basic settings. I will continue to use them for our HVAC needs. They are a trustworthy and dependable company!Posted on Google![]()
Katie CostantinoTrustindex verifies that the original source of the review is Google.
Our AC went out during a week of 110 degree days. Advanced was able to send someone out same day and were amazing to work with!! Daniel is the BEST and was able to determine and fix our problem so quickly!! So appreciative of the fantastic customer service and fast solution!!!!Posted on Google![]()
Matthew MillerTrustindex verifies that the original source of the review is Google.
Fantastic and helpful service. Got along great with technician to explained the issue with our AC unit.Posted on Google![]()
J BTrustindex verifies that the original source of the review is Google.
Matt was great! They were recommended to me by a friend, and I’ll recommend to anyone else. Service was personable, extremely knowledgeable, quick, and priced extremely fairly! He found the issue instantly, and I learned some things, and fixed it on the spot. Great company all around!
