Commercial Chiller Installation in Ontario, CA (Air‑Cooled & Water‑Cooled)

#1 AC Guys is a family‑owned HVAC company rooted in Los Angeles and serving Ontario, CA with expert commercial chiller installation. With 80+ years of engineering experience across four generations, we specialize in large and complex projects that demand rigorous planning, precise execution, and dependable performance. Our mission is simple and unwavering: healthier indoor air for a healthier life—delivered through right‑sized, efficiently controlled chiller systems that keep your building productive and comfortable.

Why businesses in Ontario choose #1 AC Guys

• 4th‑generation family of engineers with 80+ years of engineering expertise
• Factory‑trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China)
• Design‑build delivery for speed, accountability, and cost control
• Specialists in air‑cooled and water‑cooled plants, including complex retrofits
• Title 24, CALGreen, AQMD, and energy‑code compliance
• Seamless BAS integration, trending, and alarms for proactive maintenance
• N+1 redundancy strategies for mission‑critical uptime

Air‑cooled vs. water‑cooled: what fits your facility

Air‑cooled chillers are ideal when you want simpler infrastructure, faster installs, and reduced water use. They mount on rooftops or pads, excel in partial‑load efficiency with modern compressors and VFD fans, and minimize maintenance. Water‑cooled chillers, paired with cooling towers and pump skids, deliver excellent full‑load performance, quieter operation, and long equipment life—often the choice for larger buildings or process cooling. We assess lifecycle cost, sound, available space, water quality, and utility incentives to recommend the most advantageous path.

Our end‑to‑end process

• Assessment and load modeling: Utility data analysis, occupancy patterns, envelope review, and process loads to size your plant accurately.
• Scope and budget: Multiple options (base, value‑engineered, and high‑performance) with clear ROI and maintenance implications.
• Engineering and permitting: Piping diagrams, electrical coordination, seismic anchorage, and Title 24 documentation.
• Logistics plan: Crane picks, rigging, safety, and phasing to maintain operations with minimal downtime.
• Installation: Piping and insulation, hydronic balancing, power terminations, controls wiring, and start‑up checks.
• Commissioning: Sensor calibration, sequence verification, trending, and training for your operators.
• Handover and support: As‑builts, O&M manuals, warranty registration, and maintenance options.

Controls and integration

We implement sequences that prioritize reliability and efficiency: optimal start/stop, lead‑lag rotation, chilled‑water reset, condenser water reset, and demand‑based staging. Integration with your building automation system enables real‑time monitoring, alarm notifications, and KPI dashboards so your team can act before small issues become costly downtime.

Designed for clean, healthy air

Cooling is only part of occupant comfort. We align chiller performance with ventilation and filtration strategies to support clean indoor air—coordinating coil selection, humidity control, and airflow to maintain comfort, reduce mold risk, and protect sensitive spaces. Healthy air is central to every design decision we make.

Retrofits and plant upgrades

For aging systems, we deliver stepwise upgrades—from variable primary flow and high‑efficiency pumps to modern heat exchangers, VFDs, and improved water treatment. We plan changeovers to avoid business interruption, often phasing equipment so your building stays online while we modernize your plant.

Industries we serve in Ontario

• Logistics and distribution centers
• Manufacturing and light industrial
• Medical and healthcare offices
• Corporate offices and campuses
• Hospitality and mixed‑use
• Education and public facilities

Compliance, safety, and sustainability

We engineer to California codes, emphasize seismic best practices, and specify low‑noise, low‑leak solutions. Where beneficial, we incorporate energy‑saving measures such as variable flow, heat recovery, and optimized control sequences. Our team helps you evaluate utility incentives and long‑term operating cost impacts before you commit.

What you can expect

• Clear timelines and a single point of accountability
• Transparent proposals and lifecycle‑cost visibility
• Clean job sites, safety‑first crews, and proactive communication
• Thorough commissioning and operator training
• Responsive support after turnover

Serving Ontario, CA and greater SoCal

Headquartered in Los Angeles, we serve Los Angeles County and nearby regions, including Ontario and surrounding SoCal markets such as Orange County, Ventura County, and Western Riverside County. If your project falls just outside these areas, reach out—we frequently accommodate adjacent locations.

Get your tailored chiller solution

Whether you need a new air‑cooled or water‑cooled chiller, a phased retrofit, or a full plant replacement, #1 AC Guys provides engineer‑led planning and precision installation. Tell us your cooling challenges, timeline, and budget—we’ll deliver a reliable, efficient system that protects your operations and bottom line.

Contact #1 AC Guys to schedule a site visit in Ontario, CA and receive a detailed, code‑compliant proposal from our 4th‑generation family of engineers.