Commercial Ventilation System Installation in Orange, CA

End‑to‑end commercial ventilation—designed for Orange, CA

At #1 AC Guys, we deliver complete ventilation solutions that keep your people safe, comfortable, and productive while meeting California’s strict energy and mechanical codes. As a 4th‑generation, family‑owned HVAC company with more than 80 years of engineering expertise, we thrive on large, complex commercial projects across Orange and Orange County.

What we install

• Energy and heat recovery ventilators (ERV/HRV) for high‑efficiency outside air
• Make‑up air units and dedicated outdoor air systems (DOAS)
• Commercial exhaust: restroom, general, process, and high‑capacity rooftop fans
• Kitchen hood exhaust with conditioned make‑up air and grease duct systems
• Parking garage demand‑control ventilation (CO/NO2 monitoring and fan control)
• Laboratory, light manufacturing, and specialty exhaust systems
• Stairwell pressurization and smoke control components
• Ductwork, VAV boxes, fire/smoke dampers, louvers, and acoustic treatments
• Air quality upgrades: MERV‑13+ filtration, bipolar ionization (as specified), UV‑C
• Controls integration with BAS/BMS and demand‑control ventilation (DCV)

Design‑build process you can trust

• Assessment & goals: We walk the site, review plans, and align on airflow, IAQ, and energy targets.
• Engineered calculations: Outside air and exhaust sizing per ASHRAE and California Mechanical Code; Title 24 compliance baked‑in.
• Modeling & coordination: 3D coordination/BIM as needed to avoid clashes with structure, electrical, and plumbing.
• Permits & submittals: We handle drawings, specs, and city submittals for Orange and neighboring jurisdictions.
• Installation & safety: Seismic bracing, proper clearances, firestopping, and rated components—installed to spec.
• TAB & commissioning: Test, Adjust, and Balance to design cfm; functional testing and owner training.
• Turnover & support: O&M documentation, warranty registration, and proactive maintenance options.

Code, quality, and compliance

Our teams deliver ventilation that satisfies California Title 24 energy standards, California Mechanical Code, and local Orange/Orange County requirements. We implement proper fire/smoke damper placement, grease duct construction for kitchen systems, seismic supports, and acceptance testing where required. The result: a safe, efficient system that passes inspection the first time.

Industries we serve in Orange

• Restaurants, cafes, and commercial kitchens
• Offices, retail, and mixed‑use spaces
• Warehouses, distribution, and light manufacturing
• Healthcare clinics and dental offices
• Education buildings and places of assembly
• Gyms, studios, and wellness facilities
• Multifamily common areas and amenities

Project types

• New construction and core‑and‑shell
• Tenant improvements and build‑outs
• Retrofits, replacements, and expansions
• Kitchen hood make‑up air upgrades
• Garage ventilation modernization with DCV
• After‑hours cutovers to minimize downtime

Factory‑trained expertise

Our engineers and technicians have trained with leading manufacturers—including Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That factory insight helps us integrate components correctly, optimize controls, and extend equipment life through proper commissioning.

Healthier indoor air—measurable outcomes

Our mission is healthy air for a healthier life. In commercial settings, that means delivering the right outdoor air rates, using energy recovery where practical, and controlling ventilation based on occupancy and IAQ sensors. Expect reduced odors, balanced pressurization, better comfort, and improved productivity—all while managing utility costs.

What you can expect from #1 AC Guys

• Clear scope and pricing: No surprises—detailed proposals and timelines.
• Fast mobilization: Site walks and estimates scheduled quickly; priority for Orange businesses.
• Quality workmanship: 4th‑generation standards with a safety‑first culture.
• Strong warranties: Equipment and labor coverage, plus maintenance plans to protect your investment.
• Responsive service: From design to commissioning and ongoing tune‑ups.

Serving Orange and greater Southern California

Headquartered in the Los Angeles area, we proudly serve the City of Orange and all of Orange County, plus Los Angeles County, Ventura County, and Western Riverside County. If your project sits on the county line or requires multi‑site coordination, our team is built for it.

Get your free on‑site assessment

Ready to upgrade or install a commercial ventilation system in Orange, CA? Let #1 AC Guys handle the design, permits, installation, TAB, and commissioning—end to end. Contact us for a complimentary site visit and proposal, and discover why Southern California’s builders, facility managers, and business owners trust our family team for mission‑critical ventilation.