Commercial Ventilation Design in Orange, CA

What We Design for Orange Commercial Facilities

We engineer purpose-built ventilation systems for new builds, tenant improvements, and retrofits across Orange and Orange County. Our designs prioritize indoor air quality (IAQ), energy efficiency, and maintenance access while aligning with your budget and schedule.

• Dedicated Outdoor Air Systems (DOAS) with energy recovery (ERV/HRV)
• Demand-controlled ventilation using CO2/VOC sensors for dynamic airflow
• Packaged rooftop make-up air with economizers and advanced filtration
• Kitchen hood exhaust with balanced make-up air and grease vapor control
• Warehouse and manufacturing ventilation, destratification, and smoke control
• Healthcare isolation, pressure cascades, and high-MERV/HEPA strategies
• Laboratory and specialty exhaust with dilution and capture efficiency
• Parking garage ventilation with CO/NO2 monitoring and staged fans
• Integrated ventilation with VRF/mini-split from Fujitsu, Mitsubishi Elektrik, Midea, Gree, and Hier

Our Engineering Process

Every project begins with a site survey and data capture—occupancy profiles, contaminant sources, envelope characteristics, and utility constraints. We then perform ventilation calculations per ASHRAE 62.1, energy modeling for Title 24, and duct design to SMACNA standards. Equipment selection targets lifecycle value, acoustics, and serviceability, with filtration specified to meet IAQ objectives (MERV/HEPA where required). Controls sequences (including DCV, economizer logic, and setback) are drafted for seamless commissioning.

Deliverables typically include basis-of-design narratives, permit-ready drawings, schedules, details, and coordination with other trades. For design-build, we collaborate early with your GC and trades to prevent rework and optimize cost. Commissioning support and TAB-ready documentation ensure the installed system performs as engineered.

Codes, Standards, and Compliance

Our designs align with ASHRAE 62.1/90.1, California Title 24, IMC/CMC, and local Orange/Orange County amendments. We incorporate fire-life-safety requirements, smoke control intent, and damper strategies (UL 555/555S) with proper access for inspection. Where applicable, we detail seismic bracing per CBC and address acoustical criteria for occupant comfort. The result is a clear path to permits and a system that passes verification and commissioning.

Materials and Sourcing with AC PRO

To keep timelines tight and quality high, we specify professional-grade components and source materials through trusted suppliers such as AC PRO. Their Southern California distribution network helps maintain availability of duct fittings, filtration media, rooftop accessories, and controls hardware, reducing lead-time risk. Our team integrates ventilation with systems from Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China) where appropriate to your project goals.

Industries We Serve

• Office, retail, and mixed-use
• Food service and commercial kitchens
• Warehousing, light manufacturing, and logistics
• Education and assembly spaces
• Healthcare clinics and wellness facilities
• R&D, labs, and specialty environments

Why #1 AC Guys

• 4th-generation family business with 80+ years in engineering—built for complex, large-scale commercial work
• Factory-trained at Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China)
• Mission-driven: healthy air for a healthy life—IAQ, comfort, and energy balanced by design
• Design-build readiness: coordination-first approach that minimizes change orders
• Permit-ready documentation and commissioning support for faster closeouts
• Materials sourced via trusted suppliers like AC PRO to keep projects on schedule

Typical Deliverables

Basis of Design narrative; ventilation/airflow calculations; equipment schedules; duct and piping plans; control sequences; details and specifications; TAB-ready points lists; and closeout documentation. Need BIM? We support coordinated models to streamline fabrication and installation.

Service Area and Response

We serve Orange, Orange County, Los Angeles County, Ventura County, and Western Riverside County. Local familiarity with jurisdictional requirements shortens the path to permits and inspections. Whether you need a retrofit in the City of Orange or a ground-up in North OC, our team is ready to mobilize quickly.

Get a Fast, Engineer-Led Quote

Tell us about your space, occupancy, and goals. We’ll propose a right-sized, code-compliant ventilation design with clear timelines and costs. If you prefer design-build delivery, we can handle concept-to-commissioning with AC PRO-sourced materials to keep procurement smooth. Let #1 AC Guys turn complex ventilation challenges into healthy, reliable, and efficient solutions for your Orange, CA property.