Commercial Exhaust Fans—Design, Installation & Service in Los Angeles

When ventilation is critical to safety and productivity, your exhaust fans must be engineered, not guessed. Our Los Angeles commercial team performs detailed airflow calculations, duct static pressure modeling, and make-up air coordination to ensure your exhaust system actually performs under real-world conditions. We handle design-build, plan/spec, retrofits, and replacements for single fans and multi-fan systems across new construction and existing facilities.

What We Service and Install

• Upblast and utility-set rooftop exhaust fans (grease, smoke, high-heat)
• Inline and cabinet exhaust fans (long duct runs, acoustic-sensitive spaces)
• Wall-mounted and ceiling exhaust (restrooms, locker rooms, storage)
• Garage CO/NO2 ventilation with sensors and demand control
• Commercial kitchen hood exhaust with grease ducting and fan curbs
• Process and spot exhaust (welding, solvents, light industrial)
• General building exhaust and relief air solutions

Each project is custom-sized for airflow (CFM), static pressure, discharge velocity, temperature, contaminant type, and acoustics. We match fan curves to your duct design and specify VFDs or EC motors where appropriate to reduce energy and noise while improving control.

Engineered for Code and Compliance

We design to California Mechanical Code, Title 24, CalGreen, NFPA standards (as applicable), and local AHJ requirements throughout Los Angeles County and nearby counties. Our work includes proper clearances, roof curbs, backdraft dampers, seismic restraints, grease containment (where required), and fire-life safety coordination. We can assist with permit submittals and as-built documentation.

Industries and Spaces We Serve

• Restaurants, commercial kitchens, and food halls
• Warehouses, fulfillment centers, and light manufacturing
• Auto shops, body shops, and parking garages
• Laboratories, wellness, and healthcare-adjacent spaces
• Retail, offices, fitness studios, and mixed-use buildings
• Multi-family common areas and podium garages

Our mission is healthy indoor air for healthier lives—at work and at home. For commercial settings, that means controlling grease, smoke, CO/NO2, VOCs, humidity, and heat loads while maintaining pressure balance and adequate make-up air so doors close, hoods capture, and spaces feel comfortable.

Factory-Trained Expertise

Our engineers and technicians have completed factory training with Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). This background strengthens our understanding of advanced HVAC components, controls, and integration—skills we apply to exhaust system design, commissioning, and maintenance on complex projects.

Our Process

• Assessment and Airflow Survey: Field measurements, hood capture tests, and motor/drive evaluations.
• Engineering and Selection: Fan curves, static pressure, duct routing, vibration isolation, noise control.
• Controls Integration: VFDs, occupancy/CO/NO2/temperature sensors, demand-control ventilation.
• Installation and Startup: Clean, safe installs; alignment, balancing, and commissioning.
• Documentation and Training: O&M manuals, maintenance plans, and staff orientation.

For replacements, we deliver fast turnarounds with like-for-like upgrades or engineered improvements that boost performance and reduce energy spend.

Maintenance and Repairs

Exhaust fans work in harsh conditions. Proactive maintenance extends life and prevents downtime.

• Belt, bearing, and motor inspections with vibration and amperage checks
• Cleaning of wheels, housings, and grease containment where applicable
• Balancing, alignment, and fastener torque checks
• Damper and curb inspections; weatherproofing and corrosion control
• Controls calibration and filter changes for associated make-up air

When issues arise—noise, vibration, heat build-up, poor capture—we diagnose root causes and correct them: undersized fans, duct restrictions, worn drives, or missing make-up air. Our goal is stable, quiet, code-ready operation.

Why #1 AC Guys

• 4th-generation family of engineers with 80+ years of engineering experience
• Specialists in complex commercial and mixed-use projects
• Factory-trained team: Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), Haier (China)
• Precision calculations, clean installations, and transparent scopes
• Local code knowledge across Los Angeles, Orange, Ventura, and Western Riverside Counties

We’re committed to long-term performance: safer workplaces, better IAQ, lower utility bills, and fewer surprises. From rooftop upblast fans to multi-zone inline systems, we deliver engineered results—on time and on budget.

Service Area

Los Angeles County and nearby regions, including Orange County, Ventura County, and Western Riverside County.
Need help now or planning a future upgrade? Request an on-site assessment, and our engineers will map a clear path from problem to proven performance.