Commercial Ventilation System Installation in Downey

#1 AC Guys provides end‑to‑end commercial ventilation system installation in Downey designed around your building’s occupancy, processes, and code requirements. We specialize in engineered solutions that improve indoor air quality, control contaminants, and stabilize temperature and humidity while keeping operating costs in check.

What We Install

• Dedicated Outdoor Air Systems (DOAS) with energy recovery (ERV/HRV) for efficient ventilation and humidity control
• Make‑up air units for kitchens, manufacturing, and negative‑pressure spaces
• Exhaust systems: restroom, kitchen, general process, and parking garage exhaust
• High‑efficiency filtration upgrades: MERV‑13+, HEPA, carbon, and optional UV‑C
• Variable speed fans (ECM/VFD), demand‑controlled ventilation (DCV), and CO2 monitoring
• BAS/BMS controls integration, smart sensors, and remote monitoring
• Seismic supports, duct design/fabrication, acoustic treatments, and fire/smoke dampers
• AC PRO brand ventilation components and equipment sourced to your spec

Our Process

Every project follows a proven, engineer‑led workflow to minimize risk and maximize performance.

• Assessment & Load Analysis: Site visit, air change targets, contaminant sources, and existing system review.
• Engineering & Permitting: Stamped drawings as required, Title 24 compliance, ASHRAE 62.1/62.2, CalGreen, and local code coordination.
• Installation: Safety‑first execution with clean routing, proper sealing, insulation, hangers, and clear labeling.
• Controls & Integration: Economizers, DCV, scheduling, BMS tie‑in, and alarms for fault detection.
• TAB & Commissioning: Professional testing, adjusting, and balancing for verified CFM, pressures, and noise levels—final report included.
• Training & Turnover: Operator orientation, O&M documentation, and maintenance plan.

Why #1 AC Guys

• 4th‑generation family of engineers with 80+ years of engineering excellence
• Factory‑trained at Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China)
• Specialists in complex commercial and large mixed‑use projects
• Design‑build, plan‑spec, and retrofit expertise
• Transparent pricing, clear timelines, and code‑ready documentation
• TAB/commissioning included for performance you can verify
• Local to Downey; wider coverage across Los Angeles County, Orange County, Ventura County, and Western Riverside County

Industries We Serve

• Office, retail, and mixed‑use
• Restaurants, commercial kitchens, and food service
• Warehouses, distribution, and light manufacturing
• Healthcare clinics, dental, and wellness
• Education and childcare
• Multifamily common areas and amenities
• Laboratories, specialty rooms, and maker spaces

AC PRO Brand Options

Need AC PRO on your spec? We can design and install ventilation systems using AC PRO brand components and equipment, or integrate AC PRO with other leading OEM solutions to meet your performance and budget goals. Our team evaluates lifecycle cost, efficiency, and maintainability so you get the best value without compromising airflow or filtration targets.

Compliance & Quality

We engineer to ASHRAE 62.1/62.2, Title 24, CalGreen, and local code requirements. Projects are documented for permit approval and final inspection, with commissioning records that include CFM measurements, setpoints, filter schedules, and as‑builts. Where applicable, we support smoke control coordination, grease duct compliance, and environmental health requirements.

Energy & Health Benefits

Right‑sized ventilation improves occupant wellness, reduces complaints, and stabilizes productivity. With energy recovery, DCV, and high‑efficiency fans, you can cut utility costs while maintaining healthy air—MERV‑13 or higher filtration helps capture fine particulates, and optional UV‑C can address microbial concerns in select applications.

Service & Support

Beyond installation, we offer preventive maintenance, filter programs, and performance checkups. If you’re expanding or re‑tenanting space, we can re‑balance, re‑zone, or upsize ventilation to match new occupancy profiles—often reusing existing infrastructure to save costs.

Ready to start in Downey?

Book a site visit, share your plans/specs, or request a fast design‑build proposal. We’ll provide a clear scope, timeline, and investment with options that include AC PRO brand components. Let’s deliver healthier air, measurable performance, and dependable compliance—on time and on budget.

Serving Downey and surrounding areas: Los Angeles County, Orange County, Ventura County, and Western Riverside County.