20% Todays special Deal in your city
Ontario, CA
20% Todays special Deal in your city
+1 (213) 444-4223
When Ontario universities and research campuses need reliable, high‑performance cooling, they call #...
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.
#1 AC Guys designs, modernizes, and maintains commercial university chiller plants across Ontario and the Inland Empire. Our mission is healthy, reliable air for healthy learning—delivered by a 4th‑generation family of engineers with 80+ years in engineering. We’re factory‑trained at Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). From N+1 redundancy to BAS integration, we optimize water‑cooled and air‑cooled plants, cooling towers, pumps, and distribution loops to meet ASHRAE and Title 24. Expect precise controls, lower energy use, and minimal downtime. With fast access to parts and equipment through AC PRO supply channels, we shorten lead times and keep your central utility plant online—labs, lecture halls, and dorms included.
Universities in Ontario, CA need central utility plants that deliver unwavering capacity, tight temperature control, and top‑tier indoor air quality. #1 AC Guys provides end‑to‑end services for water‑cooled and air‑cooled chiller plants—design/build, retrofits, optimization, monitoring, and 24/7 emergency repair—engineered for resilience and efficiency.
We’re a 4th‑generation family business with 80+ years in engineering, specializing in large and complex commercial projects. Our engineers are trained at the factories of Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That depth shows up in safer commissioning, smarter controls, and measurable efficiency gains.
We also move fast. Leveraging AC PRO supply channels, we source equipment and OEM/aftermarket components quickly to reduce lead times and downtime—critical during peak seasons and campus events.
From greenfield plants to phased modernizations, we model load profiles across academic calendars, labs, and residence halls to right‑size chillers, towers, and pumps. Expect N+1 redundancy where it matters, low entering condenser water temperatures for efficiency, and optimized distribution with variable primary flow for lower pumping energy.
We sequence chillers, towers, and pumps to minimize kW/ton while maintaining stability during high‑density classroom changes and lab loads. Our BAS work includes trending, alarms, FDD, and dashboards for plant KPIs. We implement chilled water reset, condenser water optimization, and chiller staging logic for real‑world conditions.
Need demand response and Title 24 compliance? We integrate TES and smart load shedding to protect comfort while capturing incentives and meeting code.
Reliable operation starts with commissioning and continues with data‑driven maintenance. We verify sensors, valves, and safeties; test failover; and baseline efficiency for continuous improvement. For IAQ, we align plant operation with ventilation and dehumidification targets to promote healthy learning environments in lecture halls, libraries, dorms, and athletic facilities.
Our preventive programs keep plants running at peak efficiency and reduce emergency calls.
Services include oil and refrigerant analysis, tube cleaning, eddy‑current testing, vibration analysis, controls calibration, water treatment coordination, and seasonal switchover. When the unexpected happens, our Ontario‑area team is on call 24/7.
We align projects with ASHRAE guidelines, Title 24, and campus standards. Our process emphasizes lockout/tagout, confined‑space awareness for towers and mechanical rooms, and comprehensive documentation to support audits and capital planning.
To minimize downtime, we leverage AC PRO distribution for rapid access to coils, air handlers, valves, drives, controls components, and accessories, helping your plant return to service faster and more reliably.
Based in Los Angeles and serving Ontario and neighboring areas of Southern California—including Los Angeles County and surrounding regions such as Orange County, Ventura County, and Western Riverside County—we mobilize quickly for universities and research campuses across the Inland Empire.
Healthy air for healthy life. In higher education, that means stable comfort, excellent IAQ, and energy performance that supports sustainability goals and budgets—without disrupting the academic mission.
Planning a new chiller plant, modernizing an aging system, or chasing persistent alarms? #1 AC Guys delivers engineered answers. Schedule a site walk, load study, or optimization review today—and keep Ontario’s classrooms, labs, and dorms comfortable, efficient, and resilient all year.
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.
