Commercial & Industrial Exhaust Systems in Fullerton

When ventilation is mission‑critical, you need an engineering‑driven contractor. #1 AC Guys is a fourth‑generation family business serving Fullerton and surrounding Orange County with commercial and industrial exhaust systems that perform safely, quietly, and efficiently. Our core mission—healthy air for a healthy life—guides every design, retrofit, and service visit.

What we build and service

• Commercial kitchen exhaust with grease ducts, fan systems, and code‑compliant make‑up air
• Industrial process exhaust for heat, fumes, VOCs, welding, and light manufacturing
• Warehouse relief, distribution center exhaust, and high‑bay destratification support
• Laboratory and specialty exhaust with filtration and dilution strategies
• Parking garage exhaust and CO/NOx demand‑control integration
• Odor abatement, carbon filtration, and air cleaning to meet local standards

Each project is engineered to meet California Mechanical Code, Title 24 energy requirements, NFPA 96 (where applicable), and local AQMD rules. We coordinate closely with city inspectors and plan check to streamline approvals and shorten timelines.

AC PRO components and supply advantages

To keep your project on schedule, we source fans, curb adapters, ductwork, controls, and filtration through AC PRO. That means rapid availability, consistent quality, and easier maintenance over the life of your system. Whether you need a backward‑inclined roof fan, high‑temperature inline unit, or specialized filtration, our AC PRO supply channel helps us deliver faster with fewer change‑orders.

Controls matter. We integrate VFDs, pressure sensors, and demand‑controlled ventilation to modulate airflow by occupancy, contaminant load, or temperature—reducing energy use while maintaining capture efficiency and comfort.

Why engineered exhaust matters

Effective industrial exhaust is more than a fan on a roof. Capture velocity, duct velocity, static pressure, leakage, and make‑up air balance determine whether your system removes hazards without creating drafts, negative pressure, or energy waste. Our engineers calculate the right hood design, plenum sizing, duct routes, fire clearances, and fan selection for reliable performance.

We design for serviceability—cleanouts at key intervals, access panels, and SMART monitoring where appropriate—so maintenance is faster, downtime is lower, and total cost of ownership drops.

Our process

• Assessment and load analysis: heat, contaminant, and airflow modeling
• Code and permitting plan: California Mechanical Code, Title 24, AQMD coordination
• Design‑build submittals: drawings, equipment schedules, and control sequences
• Installation: clean, safe, and sequenced to minimize operational disruption
• Commissioning: airflow testing, balancing, capture verification, and training
• Maintenance: periodic cleaning, inspections, and performance tuning

For existing facilities, we perform retrofit studies to solve issues like poor capture, grease carryover, fan noise, or negative pressure that affects doors and comfort. Small upgrades—like right‑sized make‑up air, VFD tuning, or improved hood skirts—often deliver big gains.

Complex projects are our specialty

Large kitchens with multiple hoods, mixed‑use buildings, tight rooftop space, long duct runs, or high static pressure? That’s where our team excels. With 80+ years in engineering across four generations, we bring problem‑solving discipline to commercial ventilation challenges that others avoid.

Our engineers have trained at the factory with Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China). This manufacturer training strengthens our HVAC and controls integration skills, helping your exhaust system operate as part of a balanced, efficient building.

Industries we serve in and around Fullerton

• Hospitality and foodservice: restaurants, ghost kitchens, food halls, cafeterias
• Beverage: breweries, roasteries, and specialty production
• Industrial: light manufacturing, metalwork, assembly, and packaging
• Science and tech: labs, R&D suites, makerspaces
• Logistics: warehouses, cross‑docks, and distribution centers
• Parking structures and mixed‑use properties

While this page focuses on commercial and industrial exhaust in Fullerton, #1 AC Guys serves the wider region—Orange County, Los Angeles County, Ventura County, and Western Riverside County—with the same engineering‑first approach.

Safety, compliance, and clean work

We stage projects to protect your operations, maintain egress, and keep spaces clean. Our teams follow OSHA best practices and jobsite safety protocols. Expect clear communication, photo documentation, and as‑built updates for your records.

Need to align with landlord requirements, health department, or fire authority? We coordinate approvals and provide the documentation you need—load calcs, shop drawings, submittals, and startup reports.

Service and maintenance

Preventative maintenance keeps systems within compliance and saves energy. We offer scheduled cleaning for kitchen exhaust and grease ducts, belt and bearing checks, airflow verification, and control recalibration. If a fan fails, our AC PRO supply network helps us replace it quickly to minimize downtime.

Get a right‑sized plan for your facility

Every building is different. We begin with a focused survey, airflow targets, and energy strategy, then propose clear options with budgets and timelines. Whether you’re building new, expanding, or resolving long‑standing issues, our Fullerton team delivers a solution that is safe, quiet, and cost‑effective.

Ready to improve air quality and compliance with an AC PRO‑compatible exhaust system built for your operation? #1 AC Guys is here to help—from concept to commissioning and beyond.
Serving Fullerton, all of Orange County, Los Angeles County, Ventura County, and Western Riverside County.