Commercial & Industrial Exhaust Systems in Fullerton, CA

When your facility depends on reliable exhaust, “good enough” isn’t good enough. In Fullerton and throughout Orange County, #1 AC Guys delivers engineered commercial and industrial exhaust systems that protect indoor air quality, comply with code, and run efficiently under real‑world loads. From concept to commissioning—and through the life of your system—we manage the details others miss.

What we design, install, and service

• Commercial kitchen exhaust: grease hoods, listed grease ducts, UL 762 upblast fans, demand‑control kitchen ventilation, fire suppression interlocks, and make‑up air units
• Industrial/process exhaust: fume and smoke extraction, mist and oil‑mist capture, dust collection tie‑ins, spark arrestors, corrosion‑resistant fans and ducts (SS, FRP), and high‑temperature systems
• Laboratory and R&D: fume hood exhaust, variable volume controls, manifolded systems, HEPA/activated carbon filtration, room pressurization and air change targets
• Parking garages: CO/NO2 sensor‑based ventilation, jet fans, dilution strategies, and demand control for energy savings
• Odor and emissions control: scrubbers, carbon filtration, and SCAQMD coordination for compliance
• General exhaust and relief air: rooftop and inline fans, economizer and ERV/HRV integration to stabilize building pressure

Engineered performance, proven compliance

Every project starts with a load and capture assessment, hood and source geometry review, and duct routing study to minimize losses and noise. We size fans for actual system effect, specify VFDs for part‑load efficiency, and integrate make‑up air to prevent negative pressure issues that starve appliances and open doors. Our drawings reflect City of Fullerton and Orange County submittal needs, NFPA 96 for kitchen systems, UL 762 for grease fans, Title 24 ventilation requirements, and OSHA best practices.

Where required, we coordinate with local plan check, Health Department for food facilities, Fire Authority for suppression interlocks, and South Coast AQMD for emission control equipment. Seismic bracing is detailed to local requirements, and penetrations receive rated assemblies per listing and code.

Installation quality that lasts

• Factory‑level sheet‑metal and welded duct fabrication with smooth interior surfaces and proper slope for grease lines
• Listed grease duct or enclosure/fire wrap methods per approvals
• Precision hangers, isolation, and alignment to protect bearings and reduce noise
• Controls interlocks between exhaust, make‑up air, and appliances to maintain capture and pressure
• Airflow testing and balancing with documented capture velocities and sound readings

Advanced controls and efficiency

We deploy smart controls—VFDs, EC fans, and demand‑based ventilation—to match exhaust volume to actual load. In kitchens this can reduce energy use dramatically, while maintaining capture at the plume source. For labs and process areas, variable volume strategies preserve safety envelopes without wasting air. Integration with your building management system is available for alarms, trends, and remote support.

Industries we serve in Fullerton

• Restaurants, food halls, ghost kitchens, breweries
• Manufacturing, metalworking, plastics, printing, and composites
• Life science, biotech, university and private labs
• Parking structures and transportation hubs
• Cannabis cultivation and processing, odor‑sensitive operations
• Warehouses, distribution, and data‑adjacent support areas

Maintenance, cleaning, and emergency service

Performance and compliance depend on upkeep. Our preventative plans include hood and duct cleaning per NFPA 96 schedules, belt and bearing service, motor amp checks, filter and carbon media changes, CO/NO2 sensor calibration, and full system re‑balance after equipment changes. We provide detailed service reports and photos. 24/7 emergency response keeps you operational when fan motors, drives, or controls trip unexpectedly.

Why #1 AC Guys

• 80+ years of engineering and 4th‑generation craftsmanship in a Southern California family business
• Training at manufacturer facilities of Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China)
• Design‑build expertise for large and complex projects, from retrofit constraints to ground‑up construction
• Local code fluency—City of Fullerton permits, Title 24, NFPA 96, UL 762, OSHA, and SCAQMD coordination
• Transparent scopes, clear timelines, and documented commissioning
• Responsive warranties and life‑cycle support

Our process

1) Site walk and airflow/capture assessment
2) Concept design with budget and timeline
3) Engineering drawings and permits coordination
4) Fabrication and installation with safety controls
5) Testing, balancing, commissioning, and training
6) Maintenance plan and performance monitoring

Proudly serving Fullerton and beyond

Based in Southern California, we serve Fullerton and all of Orange County, with projects across Los Angeles County, Ventura County, and Western Riverside County. Whether it’s a single hood or a campus‑wide exhaust upgrade, we bring the same engineered discipline to every job.

Ready for cleaner, safer, and code‑compliant exhaust in Fullerton? Contact #1 AC Guys for a no‑obligation site assessment and engineered proposal tailored to your facility.