Commercial AHU (Air Handling Unit) Repair in Glendale, CA

Diagnostic-first engineering for lasting AHU repairs

We don’t guess—we measure. Our commercial AHU service in Glendale centers on data: airflow, static pressure, temperatures, refrigerant conditions (when applicable to integrated systems), motor loads, and control sequences. By testing the whole air side, we isolate faults and prevent repeat failures.

• Noisy or vibrating blower assemblies
• Overheated motors, worn bearings, belt wear and misalignment
• VFD trips, tuning errors, and parameter resets
• Insufficient airflow, high static pressure, and duct leakage
• Coil fouling, corrosion, and refrigerant-to-air performance loss
• Drain pan overflow, microbial growth, and water damage risks
• Economizer and outside air damper failures
• Faulty actuators, sensors, and BMS integration issues

What we repair and optimize

We service most major commercial air handlers used across offices, healthcare, schools, hospitality, retail, and industrial facilities. Our team repairs and optimizes:

• Fans and blowers: wheel cleaning, balancing, bearing replacement, shaft and belt service
• Motors and VFDs: selection, programming, commissioning, and vibration mitigation
• Coils and filtration: cleaning, leak tracing, coil replacement, filtration upgrades (MERV strategies), and pressure-drop tuning
• Drainage and IAQ: pans, traps, lines, biogrowth prevention, and fresh-air verification
• Economizers and ventilation: damper repair, actuator calibration, and logic sequencing
• Controls and BMS: sensor verification, sequence of operations correction, alarms, and trend review

Result: steadier temperatures, healthier indoor air, lower energy use, and fewer unscheduled shutdowns.

Engineered for complex and large-scale projects

Big buildings and specialized spaces demand more than basic HVAC service. We thrive on complexity—VAV and DOAS systems, heat recovery, pressurization strategies, and integration with existing BMS. Whether you manage a medical facility, school campus, hotel, high‑rise, or production environment, our fourth‑generation engineering mindset keeps your AHUs compliant and dependable.

We align with ASHRAE best practices and local codes to balance ventilation, comfort, and efficiency for Glendale’s climate conditions.

Our mission: healthier air for healthier lives

Healthy indoor air is at the heart of everything we do. From proper ventilation rates to filtration strategies and moisture control, we tune AHUs so occupants breathe cleaner, fresher air. Expect practical upgrades that improve IAQ without compromising energy performance.

Energy, controls, and compliance

Many AHU problems begin in controls. We verify sensor accuracy, restore sequences of operation, recalibrate economizers, and right‑size setpoints to cut waste. Our approach supports energy goals and helps facilities stay aligned with relevant standards while protecting occupant comfort.

Proven process that fits your facility

• Inspect: safety, access, electrical, mechanical, and cleanliness
• Test: airflow, static pressure, temperatures, motor loads, and controls
• Diagnose: isolate root causes and contributing factors
• Report: clear findings with repair options and timelines
• Repair: precise mechanical, electrical, and controls work
• Verify: post‑repair performance testing and documentation
• Maintain: options for proactive service to prevent downtime

Factory-trained expertise you can trust

Our engineers are factory-trained by Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China). Combined with 80+ years of family engineering experience, that training empowers us to bring disciplined methods, careful commissioning, and measurable outcomes to your air handlers.

When to repair vs. replace an AHU

We prioritize repair when it is safe, reliable, and cost‑effective. Replacement is considered when structural deterioration, repeated failures, or obsolete parts threaten uptime. Either way, we provide clear budgets, schedules, and phased plans to minimize disruption for tenants and operations.

Preventive maintenance that pays back

Clean coils, aligned belts, balanced fans, calibrated sensors, and clear drains keep AHUs stable and efficient. Ask about maintenance programs designed around your building’s occupancy and load patterns to extend equipment life and reduce energy spend.

Rapid response in Glendale and beyond

Based in Los Angeles County, we prioritize Glendale while also serving nearby areas: Los Angeles County, Orange County, Ventura County, and Western Riverside County. Need urgent help or planning a retrofit? We schedule around your operations and coordinate with facility teams to keep downtime low.

Choose #1 AC Guys

From first test to final verification, we bring the focus, discipline, and engineering depth your commercial AHUs deserve. If your air handler is noisy, inconsistent, or inefficient, we can help—fast. Request service today and get healthier air, better comfort, and lower operating costs for your Glendale property.