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

Your air handler is the heart of your building’s HVAC. When an AC PRO AHU struggles, energy costs rise, comfort drops, and indoor air quality can be compromised. At #1 AC Guys, we blend rigorous diagnostics with practical field wisdom to restore safe, efficient operation for Calabasas businesses that demand reliability.

What makes #1 AC Guys different

We are a family-owned Los Angeles company with a fourth-generation lineage and 80+ years of engineering experience. Our mission is healthy air for healthy living, which means we do more than swap parts—we correct the underlying airflow and control logic that keep your AHU performing. Our engineers trained at manufacturer facilities for Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China), bringing factory-level practices to your commercial site.

Common AC PRO AHU issues we resolve

• VFD, soft-start, and motor control faults causing trips or low airflow
• ECM and belt-drive blower failures, bearing wear, and shaft misalignment
• Stuck or miscalibrated outside air and return dampers; economizer logic errors
• Dirty or restricted coils and filters leading to high static pressure
• Sensor drift (temperature, humidity, pressure) and actuator failures
• Drain pan, trap, and condensate overflow issues impacting IAQ
• Controls integration problems (scheduling, setpoints, BACnet gateways)
• Insufficient ventilation or pressurization causing comfort complaints

Our commercial AHU repair process

• 1) Assess and stabilize: safety lockout, short-term protection, and critical alarms addressed
• 2) Measure: airflow, static pressure, temperatures, amperage, vibrations, and controls status
• 3) Diagnose: isolate root causes instead of symptom-chasing
• 4) Repair: quality parts for AC PRO air handlers and compatible components installed to code
• 5) Verify: document pre- and post-repair performance with photos and readings
• 6) Optimize: set airflow, economizer limits, and ventilation rates to support IAQ

This data-first approach reduces callbacks, protects equipment life, and gives you measurable improvements your facilities team can trust.

AC PRO air handling units we service

We repair packaged and split-system air handlers, rooftop air handlers, and custom AC PRO air handling assemblies serving offices, retail, hospitality, multi-tenant buildings, and light industrial spaces. Whether it is a single air handler or a multi-AHU site with central plant support, our team handles complex projects others avoid.

Industries we support in Calabasas

• Office campuses and creative workplaces
• Retail and mixed-use spaces
• Hospitality and fitness facilities
• Medical and dental suites
• Education and worship spaces
• Property management and multi-tenant common areas

Documentation, safety, and compliance

Expect clean, safe workmanship and documentation your stakeholders will appreciate. We align repairs with California Title 24 requirements and local codes, maintain clear work areas, and leave the site ready for occupancy with verified airflow and temperature control. Post-repair reporting helps you demonstrate compliance and plan preventative maintenance.

Healthy air is our mission

Healthy indoor air requires more than cooling. We address ventilation rates, filtration, and pressurization so occupants feel the difference. We can upgrade to appropriate MERV filtration, restore economizer function, and correct airflow to reduce hotspots and improve pollutant dilution. Better IAQ supports comfort, productivity, and long-term asset value.

Service area

Based in Los Angeles, we proudly serve Calabasas and nearby communities across Los Angeles County, plus surrounding regions: Orange County, Ventura County, and Western Riverside County. In and around Calabasas, we frequently support businesses in Hidden Hills, Woodland Hills, Agoura Hills, Westlake Village, and the greater San Fernando Valley.

When to call #1 AC Guys

• Uneven temperatures, poor ventilation, or rising humidity
• Repeated trips, alarms, or VFD and motor faults
• High static pressure, noisy operation, or low airflow
• Frequent filter clogs, dirty coils, or IAQ complaints
• Controls not following schedule or erratic economizer behavior

If you notice these symptoms, early intervention protects components, avoids downtime, and saves energy.

Get a fast, engineered fix

For Commercial AHU Repair in Calabasas—especially AC PRO air handling units—choose the fourth-generation team that brings 80+ years of engineering expertise to every service call. We respond quickly, communicate clearly, and deliver results you can measure.

Contact #1 AC Guys to schedule service, request a quote, or set up a maintenance plan.
Calabasas and Los Angeles County’s trusted commercial AHU repair specialists.