Commercial Ventilation Design in Los Angeles

We design commercial ventilation systems that improve indoor air quality, stabilize comfort, and control operating costs—without surprises. Whether you need a new build, a retrofit to meet current code, or a targeted upgrade around ventilation effectiveness, our engineers deliver a complete, documented solution.

What we design and deliver

• Dedicated Outdoor Air Systems (DOAS) with precise ventilation rates
• Energy Recovery Ventilators (ERV/HRV) to cut heating/cooling loads
• Make‑up air for kitchens, labs, and exhaust‑heavy zones
• Balanced supply/exhaust for offices, retail, and multifamily common areas
• Rooftop units and VRF/mini‑split systems with integrated ventilation paths
• Demand‑controlled ventilation with CO₂ sensors and smart controls
• Acoustic optimization and vibration isolation for quiet, productive spaces
• Filtration strategies (e.g., MERV‑13+) matched to your application

Our process starts with a thorough site review and occupancy analysis. We calculate outdoor air requirements, evaluate existing ductwork and exhaust paths, and model fan curves for stable airflow across seasons. Then we right‑size equipment, specify controls, and develop drawings and submittals for permit and construction.

Engineering depth that protects your project

• Compliance built‑in: ASHRAE 62.1 ventilation rates, California Title 24, and local jurisdiction requirements
• Energy strategy: recovery, economizer logic, and schedule‑driven ventilation to lower utility spend
• Performance validation: Testing, Adjusting, and Balancing (TAB) with documented airflows
• Future‑proofing: capacity for tenant changes, extended operating hours, or higher occupancy

We are a fourth‑generation family of engineers with 80+ years of engineering experience, specialized in commercial HVAC ventilation throughout Los Angeles County and neighboring Orange County, Ventura County, and Western Riverside County. Our team is factory‑trained at Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China), ensuring we integrate equipment intelligently and service it correctly over its life cycle.

AC PRO access for speed and reliability

Project timelines matter. We coordinate closely with AC PRO for equipment and materials, helping secure rapid availability of fans, ERVs, controls, and sheet metal components. This local supply advantage keeps your schedule on track and reduces costly delays.

Industries and spaces we serve

• Offices, coworking, and creative studios
• Retail, restaurants, and commercial kitchens
• Warehouses, light industrial, and logistics
• Medical offices, clinics, and wellness spaces
• Schools, churches, and community facilities
• Multifamily amenities and corridors

From new construction to phased retrofits in occupied buildings, we plan for constructability: rooftop clearances, curb details, seismic supports, grease and odor control for kitchens, and safe service access. Our documentation includes equipment schedules, control points, duct sizing, and diffuser layouts, backed by clear startup and commissioning checklists.

What you can expect from #1 AC Guys

• Transparent scope, drawings, and submittals
• Permit and inspection support
• Coordinated startup and TAB verification
• Training for your facilities team
• Ongoing maintenance programs to preserve airflow and efficiency

Healthy air is our mission. As your commercial ventilation partner, we balance the science of airflow with the realities of budgets and schedules—delivering systems that meet code, feel comfortable, and run efficiently day after day.

Service area: Los Angeles County and nearby Orange County, Ventura County, and Western Riverside County. Get a design review or quote today from #1 AC Guys and move your project forward with confidence.