Commercial Ventilation Design in Ontario, CA

What You Get with Our Commercial Ventilation Design

Our Ontario, CA commercial ventilation design service delivers buildable, code‑compliant solutions that improve indoor air quality while controlling operating costs. We tailor each design to your occupancy, process loads, and budget, then coordinate closely with your GC and trades to minimize change orders and delays.

• Ventilation load calculations and outside air schedules per ASHRAE 62.1
• Exhaust and make‑up air design for kitchens, restrooms, warehouse/process areas
• Energy recovery (ERV/HRV) and DOAS strategies to cut HVAC energy
• Demand‑controlled ventilation (CO2/VOC) and smart economizer logic
• Air distribution layouts, duct sizing, and pressure/velocity checks
• Filtration strategies (MERV upgrades) and clean air pathways
• Integration with VRF/ductless systems from Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier
• Control sequences of operation and sensor placement guidance
• Title 24 documentation support and permit‑ready mechanical sheets
• Construction-phase RFIs/submittal support and functional performance support

Built for California Codes and Ontario Plan Check

Every design aligns with the California Mechanical Code, Title 24 energy standards, CALGreen, and local jurisdiction requirements. We understand Inland Empire climates and the realities of Ontario plan check, ensuring your ventilation design is practical to build and straightforward to approve.

For commercial kitchens, we address grease exhaust and make‑up air coordination to support capture efficiency and comfort. For labs and light industrial spaces, we consider room pressurization, exhaust dilution, and heat recovery options where appropriate. In offices, retail, and education, we prioritize quiet operation, good air distribution, and controls that maintain target CO2 levels.

Healthy Air, Lower Energy

Our mission is healthy air for a healthy life. We combine right‑sized ventilation with high‑performance filtration and recovery technologies to reduce contaminants, support occupant wellness, and lower energy bills. ERV/DOAS systems recover energy from exhaust, while DCV trims airflow during partial occupancy without compromising indoor air quality.

• MERV 13+ filtration pathways and clean intake placement
• Energy recovery wheels/cores sized for climate and load
• Economizers with smart controls to leverage cool, dry outdoor air
• Night purge, setback strategies, and zoning for comfort and savings

Factory‑Trained Expertise You Can Trust

Our fourth‑generation engineering family brings 80+ years of engineering experience to every commercial project. We are factory‑trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That training helps us integrate DOAS and ventilation with VRF/ductless equipment effectively, honoring manufacturer best practices for reliability, service access, and performance.

Industries We Serve in Ontario, CA

• Offices, co‑working, and mixed‑use commercial
• Logistics and warehouses near Ontario International Airport
• Restaurants, food service, and food halls
• Healthcare clinics, dental, and outpatient facilities
• Retail and hospitality
• Labs, R&D, light manufacturing
• Education and community facilities

Our Process

• Discovery and goals: site survey, drawings review, IAQ targets, occupancy and process needs
• Analysis: ventilation and exhaust calculations, equipment options, control strategies
• Schematic design: airflows, zoning, ERV/DOAS concept, preliminary coordination
• Design development: duct routing, equipment sizing, sequences of operation, details
• Permit set: permit‑ready mechanical sheets and Title 24 documentation support
• Plan check support: timely responses to comments and revisions
• Construction support: RFIs, submittals, and field coordination as needed

Service Area

#1 AC Guys serves Ontario, California and the Greater Los Angeles region, including Los Angeles County and nearby areas such as Orange County, Ventura County, Western Riverside County, and surrounding Southern California communities.

Why #1 AC Guys

We specialize in large and complex commercial ventilation projects, uniting engineering rigor with practical buildability. You get responsive communication, clear drawings, and designs that meet code, meet the schedule, and meet your budget—without compromising indoor air quality.

Ready to improve IAQ and reduce energy in your Ontario facility?
Contact #1 AC Guys to schedule a commercial ventilation design consultation.