Commercial and Industrial Exhaust Systems in Ontario, CA

Engineered Exhaust Solutions for Ontario’s Commercial and Industrial Facilities

At #1 AC Guys, our mission is simple: healthy air for healthy lives. For Ontario, CA businesses, that means exhaust systems engineered to capture contaminants at the source, manage building pressure, and maintain clean, comfortable environments. With 80+ years of engineering experience across four generations, we bring proven methodologies to every project—whether it is a fast-track kitchen hood retrofit or a multi-zone industrial ventilation system integrated with make-up air, variable speed drives, and building automation.

We serve Ontario and the Greater Los Angeles area, including Los Angeles County and nearby regions such as Orange County, Ventura County, and Western Riverside County. Our team excels at large and complex scopes with strict code requirements, coordination challenges, and critical uptime needs.

Systems We Design, Install, and Service

• Commercial kitchen exhaust and grease ventilation built to NFPA 96, with hoods, fans, UL-listed duct systems, and grease containment.
• Make-up air systems sized to maintain neutral or slightly positive building pressure, reducing drafts and improving comfort.
• Manufacturing and process exhaust for welding fumes, solvents and VOCs, mist, particulates, and corrosive gases.
• Parking garage CO/NO2 exhaust with demand-control sensors and VFDs to cut energy use while meeting air quality targets.
• Warehouse and logistics ventilation for heat stratification, forklift emissions, and general air changes per hour.
• Laboratory and R&D exhaust, specialty capture hoods, and dilution strategies designed for safety and stability.
• Dust collection and localized source capture for woodworking, metalworking, and packaging operations.

Every system is balanced against the building’s HVAC to protect indoor air quality, comfort, and energy performance.

Codes, Standards, and Local Compliance

We design and deliver to the codes and standards that matter in Ontario, CA and the surrounding region: NFPA 96 for kitchens, the International Mechanical Code (IMC), California Title 24 energy requirements, CAL/OSHA safety guidance, and South Coast AQMD expectations for emissions and air quality. Our submittals, calculations, and as-built documentation are prepared to streamline plan check and inspections, reducing delays and change orders.

AC PRO Supply Chain Advantage

Reliable schedule control starts with reliable materials. Through AC PRO, we secure fast, consistent access to commercial-grade fans, curb adapters, dampers, VFDs, EC motors, filtration, duct, and controls. This shortens lead times, enables like-for-like replacements during repairs, and helps us value-engineer retrofits without sacrificing performance or durability.

Integration with HVAC, VRF, and Controls

Exhaust affects everything—temperature, humidity, pressurization, and energy spend. Our specialists were factory trained at Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That training supports precise integration with HVAC and VRF so you get the right mix of ventilation, heat recovery, and modulation. We coordinate start-stop sequences, economizer logic, damper positioning, and sensor strategies to keep airflow stable across seasons and loads.

Our Process for Commercial and Industrial Projects

• On-site assessment and airflow measurements to identify contaminant sources and pressure imbalances.
• Engineering and modeling to size fans and ducts, establish capture velocities, and select controls and safety interlocks.
• Permit-ready submittals with equipment schedules, details, and sequence of operations.
• Fabrication and installation coordinated with roofing, structural supports, electrical, and fire life safety trades.
• Commissioning and balancing to verify airflow, sound levels, controls logic, and energy performance.
• Training for your staff and a maintenance plan tailored to load, duty cycle, and cleanliness requirements.

Need to keep production running? We plan phased cutovers and off-hour work to minimize downtime, with clear milestones and checklists to keep stakeholders aligned.

Industries We Serve in and around Ontario

• Restaurants, food halls, ghost kitchens, and hospitality venues.
• Food and beverage processing, packaging, and cold-chain facilities.
• Manufacturing, metal fabrication, and precision machining.
• Warehousing, distribution, and last-mile logistics centers.
• Auto service, body shops, and fleet maintenance.
• Laboratories, electronics, and clean manufacturing support spaces.

Whether your priority is grease and smoke capture, solvent vapor control, or demand-controlled garage ventilation, we design to your KPIs—safety, comfort, energy, noise, and uptime.

Maintenance, Repairs, and Retrofits

Performance depends on maintenance. We provide scheduled cleaning for kitchen exhaust, fan and bearing inspections, belt and motor checks, filter changes, and sensor recalibration. For retrofits, we benchmark existing systems, capture real-world duty cycles, and recommend targeted upgrades—high-efficiency fans, EC motors, improved capture hoods, better duct layouts, or smarter controls—to deliver measurable gains with fast payback.
When breakdowns happen, our rapid-response team sources parts through AC PRO and mobilizes quickly to restore safe airflow and compliance.

Why #1 AC Guys

• 80+ years of cross-discipline engineering experience and a fourth-generation family team.
• Specialists in complex commercial and industrial exhaust and ventilation.
• Factory-trained at Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China).
• AC PRO materials sourcing for speed, consistency, and value.
• Mission-driven focus on healthy indoor air and dependable building performance.

Service Area

We proudly serve Ontario, CA and the Greater Los Angeles region, including Los Angeles County and nearby areas such as Orange County, Ventura County, and Western Riverside County, along with neighboring Inland Empire communities.

Let’s Talk About Your Exhaust Project

From concept to commissioning, #1 AC Guys delivers safe, quiet, and efficient exhaust systems built for your facility’s realities. Tell us your challenge—commercial or industrial—and we will engineer a solution that lasts.