Commercial Ventilation System Installation in Los Angeles

#1 AC Guys delivers turnkey commercial ventilation system installation in Los Angeles—designed, installed, and commissioned by a 4th‑generation family of engineers with 80+ years of engineering expertise. Our mission is healthy air for healthy lives, and our focus is precision ventilation that elevates IAQ, reduces energy use, and satisfies code on every project.

Engineering-led design for complex buildings

From bustling restaurants and production spaces to medical suites and multi-tenant offices, we engineer ventilation to match real occupancy and process loads. We analyze space use, contaminants, and schedules; calculate outdoor air per ASHRAE 62.1; and right-size fans, ERV/HRV cores, and make-up air. Ducts are designed for low static and quiet operation, and controls are tuned to deliver air only when and where it is needed.

• ASHRAE 62.1/62.2 outdoor air calculations and diversity
• Title 24 and CALGreen compliance strategies
• Demand-controlled ventilation (CO2/VOC sensing)
• VFD fan control and static pressure reset
• Zonal balancing for even, comfortable airflow

Mitsubishi Electric expertise you can trust

We are factory-trained by Mitsubishi Electric and experienced in integrating their ventilation solutions—including energy recovery (e.g., Lossnay ERV concepts), VRF/controls interfaces, and economizer strategies—into new and existing HVAC systems. Proper commissioning ensures quiet operation, optimal recovery efficiency, and stable pressurization across seasons.

Our team is also factory-trained by Fujitsu (Japan), Midea (China), Gree (China), and Haier (China). This multi-manufacturer training helps us solve tough integration challenges while maintaining your brand preferences and standards.

Systems we design and install

• Dedicated Outdoor Air Systems (DOAS) with heat/energy recovery
• ERV/HRV solutions for energy-efficient fresh air
• Restaurant kitchen hoods, grease-rated exhaust, and make-up air
• Restroom, lab, and process exhaust with appropriate filtration
• Stairwell/garage ventilation and CO-based control
• Filtration upgrades (MERV 13+), UV-C, and air purification options
• Smart BMS and Mitsubishi Electric controls integration

Our proven process

1) Consultation & site assessment: We review your goals, constraints, schedules, and existing conditions.
2) Engineering & permitting: We produce stamped drawings where required, Title 24 documentation, and submittals.
3) Installation: Professional, code-compliant work with attention to airflow, sealing, and acoustics.
4) Commissioning & air balancing: Setpoints, flows, and sequences tuned for comfort and efficiency.
5) Training & handoff: Your team learns operation and maintenance procedures.
6) Ongoing support: Preventive maintenance and performance checks to keep IAQ and efficiency high.

Industries we serve

• Office and coworking
• Healthcare and outpatient clinics
• Hospitality, restaurants, and food service
• Education and childcare
• Retail and mixed-use
• Multifamily common areas and amenities
• Light industrial and specialty spaces

Compliance and indoor air quality

We design to meet ASHRAE 62.1, Title 24, CALGreen, and NFPA 90A requirements, and we prioritize IAQ through effective filtration, energy recovery, and source control. For sensitive environments, we can add higher-efficiency filters, source capture, pressure zoning, and continuous monitoring.

Why Los Angeles chooses #1 AC Guys

• 4th‑generation family business with 80+ years of engineering expertise
• Specialists in large and complex commercial ventilation projects
• Factory-trained by Mitsubishi Electric, Fujitsu, Midea, Gree, and Haier
• Design-build, permit support, commissioning, and maintenance—end to end
• Local, responsive service and transparent project management

Service area

We proudly serve Los Angeles County and nearby regions, including Orange County, Ventura County, and Western Riverside County.

Get a fast, engineering-grade proposal

Tell us about your building and goals, and we’ll provide a clear scope, equipment options centered on Mitsubishi Electric solutions when preferred, and a timeline you can trust. Whether you need a new DOAS with ERV, kitchen make-up air, or a full ventilation retrofit, our engineers deliver clean, efficient air—done right the first time.

Ready to improve indoor air quality and meet code with confidence? Contact #1 AC Guys for commercial ventilation system installation in Los Angeles today.