Commercial and Industrial Plant Cooling in Downey

Engineering-first cooling for Downey commercial and industrial facilities

#1 AC Guys is a fourth-generation, family-owned HVAC firm serving Downey and the greater Los Angeles region. With 80+ years of engineering experience, our team brings deep technical rigor to commercial and industrial plant cooling, from process-critical applications to whole-building climate control. Our mission is healthy air for a healthy life, delivered through dependable capacity, stable temperatures, and superior filtration that protects people, products, and equipment.

We are factory trained by Fujitsu in Japan, Mitsubishi Electric in Thailand, Midea in China, Gree in China, and Hier in China. That real-world manufacturer training informs how we design, install, commission, and maintain sophisticated systems. Paired with our field experience, it enables us to solve complex thermal challenges and sequence multiple technologies to meet your goals.

AC PRO integration for reliable industrial cooling

We design around and integrate AC PRO commercial equipment to deliver robust performance and serviceability. Whether you need a rapid retrofit to stabilize process temperatures or a ground-up system for a new facility, AC PRO components help us achieve efficiency, availability, and long-term value without compromising code compliance or comfort.

• Chiller plants and process cooling skids
• Cooling towers and fluid coolers
• Packaged rooftop units and split systems
• VRF and heat recovery systems for zoned control
• Dedicated outdoor air systems and make-up air units
• Filtration, HEPA, and IAQ upgrades for cleaner air

Our engineering-led designs balance thermal loads, air distribution, and controls logic to support uptime while lowering lifecycle costs.

Services tailored to plants and large commercial sites

• Design-build and plan-spec projects with stamped calculations
• Retrofits that minimize downtime and preserve existing infrastructure
• Commissioning, functional testing, and controls optimization
• 24/7 emergency repair with critical spares planning
• Predictive and preventive maintenance to protect uptime
• Chiller and cooling tower efficiency upgrades
• Process cooling loop design and fluid management
• Ventilation balancing, make-up air, and pressure control
• IAQ strategies: filtration, purification, and dilution ventilation
• Refrigerant management and environmental compliance

Our proven process

• Discovery: We map production schedules, process setpoints, and environmental constraints.
• Load analysis: We model sensible and latent loads, diversity factors, and growth scenarios.
• System selection: We align AC PRO and complementary technologies to your KPIs.
• Controls strategy: We program sequences of operation for resilience and efficiency.
• Commissioning: We verify performance, safety, and documentation for turnover.
• Lifecycle support: We maintain uptime with data-driven service and continuous improvement.

Compliance, safety, and standards

Every project adheres to ASHRAE best practices, California Title 24, local permitting, SCAQMD guidelines, and applicable Cal/OSHA requirements. We design with safety, service access, and energy codes in mind to streamline inspections and reduce risk over the life of your system.

Industries and spaces we support

• Manufacturing and assembly lines
• Food and beverage processing
• Pharma and light industrial labs
• Distribution centers and cold rooms
• Data rooms and electronics production
• Large retail, mixed-use, and office campuses

From stabilizing process temperatures to improving comfort in high-occupancy zones, we tailor airflow, coil selection, and control sequences to your environment.

Why #1 AC Guys for Downey

• 80+ years of engineering experience across four generations
• Factory-trained by Fujitsu, Mitsubishi Electric, Midea, Gree, and Hier
• Expertise with AC PRO integration for industrial-grade reliability
• Proven execution on complex, large-scale projects
• Transparent scopes, clear timelines, and proactive communication
• 24/7 emergency response and preventive maintenance programs

Service area

We are local to Downey and serve the broader region with fast dispatch:

• Los Angeles County including Downey and surrounding cities
• Orange County
• Ventura County
• Western Riverside County

Whether you operate a single plant in Downey or multiple facilities across Southern California, we standardize maintenance, parts strategy, and controls to simplify operations.

Healthy air, strong operations

Healthy air in your building protects people and product quality while stabilizing processes. By combining precise cooling, proper ventilation, and filtration, we help you reduce downtime, avoid scrap, and improve comfort for your teams.

Get a site assessment

Ready to upgrade or stabilize your commercial or industrial cooling in Downey? Contact #1 AC Guys to schedule an on-site engineering assessment. We will deliver a clear scope, budget options, and a plan that aligns with your production needs, energy targets, and compliance requirements.

Keep your plant running at peak performance with an engineering-first partner who understands industrial realities and delivers results the first time.