Commercial Ventilation System Installation in Fontana

Fontana’s logistics, manufacturing, and commercial spaces demand robust ventilation to control heat, contaminants, and humidity while meeting strict California codes. #1 AC Guys brings 80+ years of engineering expertise from a fourth‑generation family business to design, install, and commission commercial ventilation that keeps air clean and operations efficient. We specialize in complex, large‑scale projects and deliver measurable indoor air quality improvements without sacrificing energy performance.

What we install

• Dedicated Outdoor Air Systems (DOAS) with energy recovery
• ERV/HRV units for heat and moisture transfer
• Make‑up air units with gas, electric, or heat pump configurations
• Demand‑controlled ventilation with CO2 sensors
• General and process exhaust, lab exhaust, restroom and kitchen exhaust
• High‑efficiency filtration: MERV 13+, HEPA options, UV‑C as required
• Custom sheet‑metal ductwork, VAV/pressure control, and sound attenuation
• Smart controls and BAS integration for monitoring and fault detection

Our field teams complete precision duct fabrication, seismic bracing, curb adapters, roof penetrations, and weatherproofing details that stand up to daily use and seasonal conditions.

Design‑build engineering for better outcomes

We begin with a collaborative, data‑driven approach—load calculations, airflow modeling, and space‑use analysis—matching system types to your goals for comfort, air quality, and energy intensity. That translates into right‑sized equipment, quieter operation, and fewer change orders. We plan for maintenance access, future expandability, and control sequences that optimize ventilation against real occupancy patterns.

Our engineers and installers are factory‑trained at Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China), giving us deep product knowledge to configure systems correctly and commission them to spec.

Compliance, documentation, and commissioning

• Title 24 compliance, acceptance testing coordination, and ventilation rate verification
• California Mechanical Code and CALGreen alignment for IAQ and filtration
• Stamped drawings as needed, permit packages, and inspection support
• Testing, Adjusting, and Balancing (TAB) with final reports
• Controls programming, point‑to‑point checks, and trend verification

Every installation is delivered with O&M manuals, as‑built drawings, and a commissioning report so your facilities team can operate systems confidently from day one.

Industries we serve in and around Fontana

• Warehouses and distribution centers along the I‑10 corridor
• Manufacturing and light industrial facilities
• Grocery, retail, and shopping centers
• Office buildings, medical suites, and campuses
• Restaurants, commercial kitchens, and food storage

From odor and heat removal to code‑required outdoor air and pressure zoning between clean and dirty spaces, we tune systems to your process and people.

Our proven process

• Assessment: Site walk, IAQ review, existing equipment inventory, and airflow measurements
• Engineering: Alternatives and budgets with lifecycle cost analysis
• Permits and procurement: Submittals, logistics planning, and safety plan
• Installation: Phased work to minimize downtime; strict QA/QC
• TAB and commissioning: Balance, verify, and document performance
• Training and turnover: Hands‑on operator training and O&M kits
• Aftercare: Preventive maintenance plans and priority response

Why #1 AC Guys

• Fourth‑generation family business with 80+ years in engineering
• Specialists in complex commercial and industrial ventilation
• Factory‑trained at Fujitsu, Mitsubishi Elektrik, Midea, Gree, and Hier
• Design‑build delivery for speed, accountability, and cost control
• Transparent pricing, clear schedules, and safety‑first execution

We are committed to our mission: healthy air at work for healthier lives. That means selecting filtration and ventilation strategies that lower particulate and VOC exposure, stabilizing humidity for comfort and product quality, and integrating controls that avoid over‑ventilation energy waste.

Service area and response

We serve Fontana and the Greater Los Angeles region, including Los Angeles County and nearby areas such as Orange County, Ventura County, and Western Riverside County. Whether you operate a single facility or a multi‑site portfolio, our team mobilizes quickly with the people, parts, and project leadership to keep your timeline on track.

Get a code‑ready quote

Bring us your ventilation challenge—tight schedules, high internal loads, odor control, or strict compliance. #1 AC Guys will deliver a clear scope, fixed pricing options, and a commissioning plan you can trust. Contact us to schedule a site assessment and discover how engineered ventilation can improve productivity, safety, and energy performance.

Ready to start? Let’s design a cleaner, safer airflow strategy for your Fontana facility today.