Family-Owned HVAC Experts with 80+ Years of Engineering Excellence

With 80+ years of engineering expertise, #1 AC Guys delivers top-tier HVAC solutions for residential...

With 80+ years of engineering expertise, #1 AC Guys delivers top-tier HVAC solutions for residential and commercial projects, ensuring a healthy air for a healthy life. #1 AC Guys is a 4th-generation HVAC company proudly serving Los Angeles and nearby counties with expert heating, cooling, and air quality solutions backed by 80+ years of experie...

80+ years experience in engineering
Available 24/7 for Emergencies
Quick service Same-Day inspection and estimate

★★★★★

95% of clients recommend us

HVAC Experts in Los Angeles | #1 AC Guys – AC Repair & Installation

Special Deals

We give a 1 year guarantee for the trouble-free operation of your old air conditioner

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Up to 10 years air conditioner warranty Lifetime work guarantee

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Video review from our costumers

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Sarah M.

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James R.

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Monica T.

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Why Choose #1 AC Guys for Your HVAC Needs

#1 AC Guys is more than just an HVAC company — we are a family of engineers spanning four generations, with over 80 years of engineering expertise. From residential comfort systems to large and complex commercial projects, our mission is clear: to deliver clean indoor air for a healthy life. Serving Los Angeles County, Orange County, Ventura County, and Western Riverside County, our team provides world-class service backed by factory training from Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China).

Our Legacy and Commitment

As a 4th-generation family business, #1 AC Guys brings unmatched engineering knowledge to every project. Our story began more than 80 years ago, when the first engineer in our family inspired a tradition of excellence. Today, we continue this legacy by combining advanced training with modern HVAC technologies to ensure the highest level of comfort and reliability.

Residential HVAC Solutions

Homeowners throughout Southern California trust us for dependable, efficient, and long-lasting solutions. Our residential services include:

Air Conditioning Installation & Replacement – Custom systems designed for your home’s unique needs.
Heating Systems – High-efficiency furnaces, heat pumps, and more.
AC Repair & Maintenance – Fast, reliable service to restore comfort quickly.
Indoor Air Quality – Filtration, purification, and ventilation for a healthier living environment.

Commercial HVAC Expertise

Businesses across Los Angeles and surrounding counties rely on us for large-scale, complex HVAC projects. Our commercial services cover:

System Design & Engineering – Tailored solutions that maximize performance and efficiency.
Installation of Large Systems – Rooftop units, chillers, VRF/VRV systems, and more.
Preventive Maintenance Programs – Protecting your investment and ensuring long-term reliability.
Emergency Repairs – 24/7 availability to keep your operations running without interruption.

Why We Stand Out

Our engineers are factory-trained by industry leaders — Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier. This direct manufacturer training means that we understand each system at the highest technical level. Combined with decades of engineering experience, we deliver solutions that go beyond basic installation and repair.

Key reasons clients choose #1 AC Guys:

4th-generation family of engineers with 80+ years of expertise.
Extensive experience in both residential and commercial projects.
Specialized knowledge in large and complex HVAC systems.
Commitment to healthy indoor air for a better quality of life.
Service areas covering Los Angeles County, Orange County, Ventura County, and Western Riverside County.

Our Mission: Clean Air, Healthy Life

We believe that HVAC is more than just temperature control. It is about creating an environment where families and businesses can thrive. Clean, fresh, and properly circulated air promotes better health, greater comfort, and improved productivity. Every system we design, install, or service is guided by this mission.

Serving Southern California with Pride

From the bustling streets of Los Angeles to the growing communities in Orange County, Ventura County, and Western Riverside County, we proudly bring top-tier HVAC expertise wherever our clients need us. Our family-owned business combines personalized service with professional excellence, making us a trusted partner for homeowners, property managers, and business owners alike.

#1 AC Guys — Your trusted HVAC partner for clean, healthy, and efficient indoor air solutions in Southern California.

OUR SERVICES

HVAC Services in Southern California

We offer a wide range of HVAC services catered to both residential and commercial clients.

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TESTIMONIALS

Words From Customers

This team is fantastic. The technician arrived right on time, wore protective gear indoors, and was super respectful. They explained what they were doing at every step and ensured everything was working before leaving. A+ service!

Samantha R.

☆☆☆☆☆

I called them on a recommendation and now I see why people speak so highly of them. The technician was prompt, professional, and got everything up and running smoothly in no time. Great experience from start to finish.

Alex V.

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I’ve had them out for both routine maintenance and emergency repairs, and I’ve been impressed every single time. Their technicians are knowledgeable, friendly, and explain everything thoroughly. I feel confident calling them whenever I have an HVAC issue.

Mark E.

☆☆☆☆☆

xcellent service from start to finish. They were able to come out quickly and had my AC back up and running the same day. The tech was courteous and explained the issue clearly. I had gotten other estimates before, and this company was by far the most affordable. I didn’t feel pressured at all, and everything was handled professionally. Definitely my go-to from now on.

Natalie S.

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This HVAC company has now helped us with both heating and cooling repairs, and we’ve been happy each time. The technicians are always on time, very respectful, and know what they’re doing. One of the best things? You get high-quality service without paying outrageous fees. We won’t be calling anyone else.

Brian C.

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