Commercial & Industrial Exhaust Systems in Orange, CA

Design-Build & Engineering

We begin with load calculations, capture velocity targets, and pressure mapping to right-size exhaust and make-up air. Our engineers use practical field data and proven standards to ensure the system performs across operating conditions. Whether you need UL 762 grease exhaust, lab fume extraction, process exhaust, or garage ventilation, we deliver a design that balances safety, energy efficiency, and long-term maintainability.

• Grease exhaust and make-up air systems designed to NFPA 96
• Fume hoods, process exhaust, and specialty filtration for labs and manufacturing
• Parking garage CO/NO2 ventilation with demand control strategies
• Smoke control, stairwell pressurization, and shaft ventilation
• Energy recovery and outside air optimization to meet Title 24

Installation & Retrofit

From heavy-gauge ductwork and welded grease ducts to curb adapters, vibration isolation, seismic bracing, and controls, we install for durability and code compliance. Our crews coordinate with GC, roofing, electrical, and fire life-safety trades to keep your project on schedule and inspection-ready in Orange, CA.

• Turnkey installs with permit coordination and AHJ inspections
• UL-listed components, smart controls, and VFD commissioning
• Quiet operation with proper duct sizing, balancing, and acoustic treatments
• Retrofits to improve capture, reduce odor, and meet new compliance

Controls, Integration & Bosch Compatibility

Need your exhaust to integrate with existing building systems? We deliver Bosch-compatible solutions when projects involve Bosch components, sensors, or controls, ensuring safe interoperability and adherence to manufacturer guidelines. We also integrate with common BMS platforms, demand control ventilation, and air quality monitoring for precise and efficient operation.

• Start/stop logic tied to cooking, process, or occupancy states
• CO/NO2 sensors for garages with staged/VFD fan control
• Pressure, temperature, and airflow monitoring with alarms
• Data logging for compliance documentation and optimization

Compliance, Testing & Documentation

We design and build to IMC, IBC, NFPA 96, ASHRAE guidelines, Title 24, and SCAQMD rules. After installation, we verify performance and document results for your records and the authority having jurisdiction.

• Test, Adjust, Balance (TAB) with capture and flow verification
• Smoke and pressure tests for shafts and stairwell pressurization
• Grease duct clearances, fireproofing, and cleanouts per code
• O&M manuals, training, and maintenance schedules for your team

Maintenance & Emergency Service

Prevent downtime and protect occupants with proactive service. Our maintenance plans include inspections, cleaning coordination for grease ducts, belt and bearing checks, VFD tuning, and sensor calibration. We provide rapid-response troubleshooting in Orange and throughout Orange County.

• Fan, motor, and VFD diagnostics and replacement
• Hood and duct performance checks with airflow corrections
• Filter media changes and odor mitigation strategies
• After-hours service to keep critical operations running

Industries We Serve

Our team specializes in complex, high-stakes projects that demand true engineering discipline.

• Restaurants, commissary kitchens, and food manufacturing
• Biotech, labs, and R&D facilities
• Aerospace, metalworking, and process exhaust
• Parking structures and mixed-use developments
• Hospitals, clinics, and healthcare campuses
• High-rise and commercial office buildings

Why #1 AC Guys

We are a 4th‑generation, family-owned company with 80+ years of engineering experience. Our mission is healthy air for healthy lives, delivered through safe, efficient, and code-ready exhaust systems. We are factory-trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That depth of training and engineering know-how helps us solve the most challenging commercial and industrial ventilation problems.

• Complex-project specialists with stamped drawings available
• Bosch-compatible integration when projects require Bosch components
• Transparent pricing, clear timelines, and AHJ-ready documentation
• Local, accountable service with long-term support

Service Area & Local Expertise

Based in Greater Los Angeles, we serve the City of Orange and all of Orange County, with rapid dispatch to neighboring areas including Los Angeles County, Ventura County, and Western Riverside County. We understand local codes, permitting pathways, and SCAQMD requirements that impact exhaust and make-up air design.

Get a Quote

Need a new commercial or industrial exhaust system in Orange—or a retrofit that finally fixes capture, noise, or compliance issues? Contact #1 AC Guys for an engineering-led proposal, complete with scope, schedule, budget options, and performance guarantees. We’ll design it right, install it clean, and document it thoroughly—so your facility operates safely and efficiently from day one.