20% Todays special Deal in your city
Los Angeles, CA
20% Todays special Deal in your city
+1 (213) 444-4223
Looking for a dependable contractor to install a commercial Fujitsu rooftop unit (RTU) in Los Angele...
95% of clients recommend us
We offer a wide range of HVAC services catered to both residential and commercial clients. Even the all-powerful Pointing has no control about the blind texts.
We combine fourth‑generation engineering discipline with factory training to deliver reliable, efficient, and code‑ready Fujitsu rooftop installations. From detailed load calculations and Title 24 compliance to seismic curbs, crane logistics, and BMS integration, our commercial team handles every step in‑house. We specialize in complex replacements and new builds for offices, retail, restaurants, warehouses, and more across Los Angeles County and nearby Orange, Ventura, and Western Riverside counties. Our mission—healthy air for healthy life—means we engineer superior ventilation, filtration, and control strategies that improve comfort, productivity, and energy performance. Expect transparent proposals, precise timelines, and commissioning that proves your RTU performs as designed.
At #1 AC Guys, your commercial Fujitsu rooftop unit installation starts with engineering. We perform site surveys, heat‑gain/load calculations, and airflow analysis to right‑size your equipment. We plan curbs and adapters, economizers, and ventilation to align with California Title 24, local code, and your building’s operating needs. Our fourth‑generation engineering roots and 80+ years in engineering guide every decision—from coil selection to control sequences—so your system delivers dependable comfort and measurable efficiency.
Our commercial team is factory‑trained by Fujitsu in Japan, bringing brand‑specific know‑how to selection, installation, and commissioning. We also hold factory training from Mitsubishi Electric in Thailand, Midea in China, Gree in China, and Haier in China, strengthening our engineering perspective across advanced HVAC platforms. This depth helps us execute complex rooftop installations with confidence, precision, and scalability—whether you need a single RTU or a multi‑unit replacement program across several buildings.
Healthy air for healthy life is our mission. We design RTU solutions that enhance occupant wellness and reduce operating costs: high‑efficiency filtration, balanced ventilation, demand‑control strategies, smart economizers, and optimized fan speeds. The result is cleaner indoor air, stable temperatures, and lower kWh/therm consumption—without sacrificing comfort or reliability.
You get a single, accountable team from day one. We begin with a discovery call and on‑site assessment, followed by an engineered proposal with options and ROI insights. Once approved, we handle permits, coordinate cranes and deliveries, and execute the installation with clear daily communication. After commissioning, we provide documentation, warranty registration, and an optional maintenance plan to protect your investment.
We install commercial Fujitsu rooftop units across Los Angeles County and nearby Orange County, Ventura County, and Western Riverside County. From downtown Los Angeles to coastal corridors and inland business parks, our logistics team schedules crane lifts and deliveries to minimize disruption to your operations.
Our proposals outline scope, equipment, timelines, and all inclusions—no surprises. We offer same‑week site assessments and scheduling when available, fair pricing for complex crane and curb work, and workmanship warranties backed by our family business reputation. Ask about phased replacements and maintenance programs that extend equipment life and stabilize budgets.
How long does a commercial RTU installation take?
Most single‑unit projects take 1–3 days once permits and crane logistics are in place. Larger or multi‑unit projects may run 3–5 days or be phased to minimize downtime.
Do you handle permits and crane lifts?
Yes. We manage permits, engineering, curb adapters, crane coordination, and site safety so your team can stay focused on operations.
Can you integrate with our existing controls or BMS?
Yes. We configure Fujitsu controls and can interface with building management systems where required for monitoring and scheduling.
Do you replace RTUs on existing curbs?
We evaluate the curb, design adapters or seismic curbs as needed, and ensure proper duct alignment, drainage, and weatherproofing.
What about warranties and maintenance?
We register manufacturer warranties and back our work with a workmanship warranty. Optional preventive maintenance plans help maintain efficiency and uptime.
Choose a commercial partner that leads with engineering. #1 AC Guys brings four generations of problem‑solving to your rooftop—delivering clean, efficient air with proven Fujitsu expertise. Contact us today to schedule your free on‑site assessment in Los Angeles or the surrounding counties.
We offer a wide range of HVAC services catered to both residential and commercial clients. Even the all-powerful Pointing has no control about the blind texts.
We offer a wide range of HVAC services catered to both residential and commercial clients.
We offer a wide range of HVAC services catered to both residential and commercial clients.
