Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in Monrovia, CA
Founded in 1969, Air-Tro has established itself as a trusted leader in residential and commercial HVAC services across Southern California. Our family-owned business combines decades of hands-on experience with cutting-edge technology to deliver tailored heating, cooling, and air quality solutions. With a team of certified professionals, we prioritize rigorous inspections, energy-efficient installations, and rapid emergency response to ensure year-round comfort for homeowners and businesses.Our commitment to excellence is reflected in our long-standing community partnerships, industry awards, and customer-centric approach that emphasizes transparency, integrity, and lasting relationships. We serve the San Gabriel Valley, Pasadena, Los Angeles, and surrounding areas, maintaining a reputation built on trust and technical expertise.
Services
HVAC Installation
AC Repair
Furnace Replacement
Air Quality Solutions
Generator Installation
Details
- Year established: 1969
Highlights and features
- We have over 50 years of experience serving Southern California's HVAC needs
- Our team consists of certified experts with decades of combined experience
- We provide 24/7 emergency repair services for urgent HVAC issues
- Our company has received multiple Readers Choice Awards for service excellence
- We maintain long-term partnerships with local community organizations
What people say
Prompt and professional
Courteous and efficient
Experienced technicians
Reliable service
Quality workmanship
Services
HVAC Installation
We specialize in complete HVAC system installations for residential and commercial properties. Our certified technicians ensure proper sizing, energy-efficient configurations, and manufacturer-compliant setups. With over 50 years of experience, we deliver durable installations that optimize indoor comfort while maximizing energy savings for Southern California clients.
AC Repair
Our emergency AC repair services address cooling system failures promptly across Los Angeles County. Trained technicians diagnose issues with compressors, refrigerant levels, and electrical components using advanced diagnostic tools. We prioritize rapid response times while maintaining technical precision to restore comfort in both residential and commercial settings.
Furnace Replacement
We provide complete furnace replacement solutions with energy-efficient models tailored to Southern California's climate. Our process includes load calculations, ductwork evaluation, and proper venting configurations. Certified technicians ensure safe installation of high-efficiency systems that deliver consistent heating performance while reducing energy consumption for homeowners.
Air Quality Solutions
Our air quality services include UV sanitization systems, ventilation upgrades, and filtration solutions for healthier indoor environments. We install and maintain systems that remove contaminants, control humidity, and improve airflow circulation. These solutions benefit both residential clients and commercial spaces requiring specialized air purification protocols.
Generator Installation
We offer generator installation services for residential and commercial properties in Greater Los Angeles. Our experts handle proper sizing, transfer switch installation, and fuel system connections. We specialize in backup power solutions that ensure uninterrupted operation during outages, with proper permitting and safety compliance for both residential and business clients.
People
Bob Helbing
President
With decades of HVAC industry leadership, Bob Helbing oversees Air-Tro's operations and community initiatives. Recognized with a Rotary Award for service excellence, he maintains active involvement in local education and charitable programs while ensuring technical standards across all service divisions.
Questions
What HVAC services do you offer for residential customers?
We provide complete HVAC solutions including system installation, repair, and maintenance for residential properties in Southern California.
Do you offer emergency HVAC repair services?
Yes, our rapid response team provides 24/7 emergency repair services for urgent heating and cooling system failures.
What commercial HVAC services are available?
We offer commercial HVAC installation, maintenance, and repair services including rooftop units, VRF systems, and digital controls for Los Angeles businesses.
Do you provide financing options for HVAC upgrades?
Yes, we offer financing programs to help customers manage the cost of HVAC system replacements and major repairs.
What areas do you service?
We serve Monrovia, Pasadena, Los Angeles, and surrounding areas including Arcadia, Sierra Madre, and San Marino.
How can I schedule HVAC service?
Call us at (626) 357-3535 or visit our website to schedule service for residential or commercial HVAC needs.
Videos
Reviews (6)
Jonathan B.
Jun 21, 2022
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What an amazing crew! Kevin Berry was very helpful and responsive to my needs and got my job setup just in time for the summer heat. Jonathan was a very knowledgeable tech and my a/c is now cranking. 100% recommended!
Amman S.
Jun 21, 2022
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Scheduled an AC person to come twice. Both times they didn't show within 4 hour window. Unreliable. Don't waste your time.
Adriana D.
Jun 10, 2022
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I called Air Tro and spoke to schedule regular quarterly maintenance. The service fee was $112, I advised that service is bow $168. No notice, no heads up. My parents have been customers for years and to not give them a heads up on the price increase is completely unprofessional. I have advised Air Tro that I will be taking my business elsewhere.
Cheryl R.
Jun 07, 2022
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5 stars for our consultant Peter J, our new two-stage condenser, and the crew who installed our new furnace into the attic. Peter was very thorough and responsive and the Air-Tro crew worked efficiently and was very communicative during the whole removal/disposal/installation process! That being said, I cannot stand the iComfort Lennox app which lets me control our air and heat. The app works a small fraction of the time, otherwise, it gives me a "Unable to Display Current Temperature" error message and will not connect. Extremely frustrating, I wish we could use another app. Either way, Air Tro was great, but hopefully they're able to switch to something that uses a better app.
Cesar C.
Jun 06, 2022
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Purchased a home with ac unit that was not working. Called Jorge, made an appointment to have my ac checked. Jorge was on time and fixed my ac. Now it works and is blowing ice cold. Happy we went with him saved us from a big headache!
Sanjay Sanjay
May 31, 2022
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The technician was knowledgable. Prices are higher compared to some other places that I have checked with, but there was no hassle. Giving it 3 star rating because I have only used their diagnostic services. Will update or add a new review once I use their installation service. Service: HVAC system maintenance
