Commercial AHU (Air Handling Unit) Repair in Fontana — AC PRO Specialists

Why Fontana Businesses Choose #1 AC Guys for AC PRO AHU Repair

We are a fourth‑generation family of engineers with 80+ years of engineering expertise, focused on delivering healthy indoor air and reliable performance for commercial facilities. Our specialists are factory‑trained at Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). We bring this deep engineering foundation to complex AHU diagnostics and repair for AC PRO air handling units in Fontana and the broader Inland Empire.

From logistics warehouses and manufacturing to retail centers, healthcare, schools, hospitality, and offices, we minimize downtime with fast, accurate fixes—backed by careful commissioning and documentation.

Comprehensive AHU Repair for AC PRO Systems

• Motors, bearings, sheaves, belts, and blower assemblies
• VFDs, contactors, relays, and electrical faults
• Cooling/heating coils, drain pans, condensate lines, and leak remediation
• Economizers, dampers, actuators, and outside air controls
• Filters (MERV upgrades), IAQ enhancements, and airflow balancing
• Sensors, thermostats, BAS integration, and control calibration
• Rooftop AHUs, indoor handlers, make‑up air units, and VAV air handlers

We use OEM‑grade components and proven repair methods to restore safe airflow, proper ventilation rates, and energy‑efficient operation. After repairs, we verify results with static pressure, airflow, and temperature split checks, and we provide clear service reports for your records.

Symptoms Your AHU Needs Immediate Service

• Uneven temperatures, hot or cold spots, or poor airflow
• High energy bills or breakers tripping under load
• Vibration, grinding, belt noise, or fan imbalance
• Humidity swings, musty odors, or visible moisture near the AHU
• Alarms from BAS/controls, economizer not opening/closing correctly

Catching these issues early protects indoor air quality, prevents costly failures, and extends equipment life.

Our Process: Engineered For Reliability

1. Rapid assessment
We dispatch quickly to Fontana facilities and stabilize the system to protect occupants and equipment.

2. Precision diagnostics
Electrical testing, VFD trending, airflow/pressure readings, coil inspection, controls review, and mechanical checks.

3. Repair and optimization
Targeted fixes using OEM‑grade parts, proper alignment/tensioning, sealing, cleaning, and calibration.

4. Commissioning & verification
We confirm designed airflow, temperature splits, damper operation, and safety controls—then document performance.

Healthy Air Is Our Mission

Healthy air drives every decision we make. We help Fontana businesses meet ventilation and filtration goals with practical upgrades: proper outside air control, MERV 13+ filter strategies where feasible, coil cleanliness for heat transfer, and balanced airflow to reduce hot spots and contaminants. When appropriate, we can discuss UV‑C options and other IAQ enhancements to support your environmental goals.

Planned Maintenance That Prevents Breakdowns

• Seasonal inspections, belt and bearing checks, lubrication, and vibration review
• Filter strategy and pressure drop tracking to protect coils and fans
• Drain pan and condensate line service to prevent leaks and microbial growth
• VFD health checks, torque and parameter review, and trend analysis
• Controls verification: sensors, safeties, economizer logic, and setpoints

A proactive plan reduces emergency calls, stabilizes indoor air quality, and trims energy costs across your AC PRO AHUs.

Industries We Serve in Fontana

• Logistics and distribution centers
• Manufacturing and light industrial
• Retail, grocery, and shopping centers
• Healthcare and medical offices
• Education and public facilities
• Class A/B offices and hospitality

Licensed, Insured, and Commercial‑Ready

We’re fully licensed and insured in California and experienced with safety protocols, roof access, crane coordination, permits, and documentation. Our team communicates clearly with facility managers and GCs, aligning repairs with your schedules and compliance requirements.

Fast Service Across Fontana and Nearby Areas

We serve Fontana and the surrounding Inland Empire corridors, with rapid dispatch to neighboring communities—including Western Riverside County and greater Los Angeles County. Whether you manage one site or a multi‑facility portfolio, we make service simple and consistent.

Get a Quote for AC PRO AHU Repair Today

If your commercial AC PRO air handler in Fontana needs urgent attention—or you want an expert health check—contact #1 AC Guys. We’ll restore safe airflow, stabilize temperatures, and protect your bottom line.

• 24/7 emergency response
• Transparent, itemized estimates
• OEM‑grade parts and precise commissioning
• Documentation for compliance and warranty

Call now or request service online. #1 AC Guys—engineered solutions for healthy, efficient air.