Fullerton Commercial Exhaust Fans — Installation, Repair & Maintenance

Engineered Exhaust Solutions for Demanding Commercial Spaces

From heat, smoke, grease, and odors to fumes and particulates, your building depends on a properly sized and balanced exhaust system to protect people, product, and property. #1 AC Guys specializes in commercial exhaust fans for Fullerton businesses—delivering clean air, temperature control, and code compliance without disrupting operations.

We design and service a full range of systems: rooftop upblast fans for commercial kitchens, inline centrifugal fans for long duct runs, mixed‑flow fans for quiet performance, general warehouse exhaust, restroom exhaust, lab and light‑industrial exhaust, and parking‑garage systems with CO/NO₂ sensors. Our goal is simple: healthier air and safer workplaces with dependable, energy‑smart performance.

Design/Build and Retrofits

Our engineers right‑size airflow using real‑world load data—calculating required CFM, static pressure, duct sizing, and make‑up air to stabilize building pressure and avoid back‑drafting. We specify VFDs or EC motors for efficiency, isolation bases for vibration control, and curbs/backdraft dampers for weather and odor mitigation. Need a retrofit? We seamlessly replace aging fans, re‑use viable ductwork, and upgrade controls to extend system life and reduce operating cost.

Code Compliance and Permits

We align every project with California Mechanical Code, Title 24 energy standards, NFPA 96 for commercial kitchen exhaust, and local AHJ requirements. Expect permit support, submittal packages, and documentation that keeps inspections smooth. For kitchen systems, we coordinate with your hood/fire‑suppression vendors and ensure interlocks, grease‑rated components, and proper clearance—end to end.

Fast Repairs and Diagnostics

When performance drops, odors linger, or heat builds up, our technicians troubleshoot quickly. We repair and replace fan motors (single/three‑phase), bearings, belts, pulleys, wheels, VFDs, starters, contactors, disconnects, and sensors. We correct vibration, balance wheels, seal duct leaks, and restore airflow to spec. Typical warning signs include unusual noise, breaker trips, grease leakage, persistent smoke/steam, or negative‑pressure door slamming—call us at the first sign to protect your equipment and guests.

Preventive Maintenance That Pays Off

Planned service reduces downtime and keeps you compliant. Our PM includes belt replacement and alignment, bearing lubrication, motor amperage checks, VFD inspections, fastener/curb seal checks, filter and make‑up air verification, and airflow/balance checks. For kitchens, we verify grease‑rated components and coordinate hood/duct cleaning schedules to maintain NFPA 96 compliance.

Industries We Serve

- Restaurants, food halls, ghost kitchens, and cafeterias
- Breweries, food processing, and cold storage support spaces
- Warehouses, distribution, and light manufacturing
- Labs, R&D, and specialty ventilation zones
- Retail, mixed‑use, offices, and multi‑family common areas
- Parking garages and back‑of‑house support areas

Trusted, Family‑Run Expertise

We are a 4th‑generation, family business built in Southern California. Our factory‑trained team has worked with leading manufacturers including Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). We love big, complex projects that require thoughtful engineering and precise execution—and we stand behind our workmanship.

Service Area

Headquartered in Greater Los Angeles, we proudly serve Fullerton and all of Orange County, plus Los Angeles County, Ventura County, and Western Riverside County. Need multi‑site support? We can standardize equipment, controls, and maintenance across your portfolio.

Get Your Free On‑Site Assessment

If your facility in Fullerton needs a new commercial exhaust fan, a performance upgrade, or urgent repair, #1 AC Guys is ready to help. We offer clear pricing, fast scheduling, and solutions that prioritize safety, comfort, and energy savings. Contact us now to book an on‑site assessment and receive a tailored, no‑pressure proposal.