Pasadena Commercial Furnace Repair — AC PRO Experts

AC PRO Commercial Furnace Repair — What We Service

We diagnose and repair AC PRO commercial furnaces and heating sections in packaged rooftop units across Pasadena. Whether your system is gas heat, heat pump with auxiliary heat, or a high-efficiency condensing design, our engineers restore reliable, safe operation while optimizing airflow, combustion, and controls.

• Packaged rooftop units (RTUs) with gas heat
• Split systems with furnace and air handler
• Make-up air and ventilation heat sections
• Economizer integration and controls
• Demand-controlled ventilation and IAQ upgrades

Serving offices, retail centers, restaurants, medical suites, schools, multifamily common areas, and light industrial facilities throughout Pasadena and Greater Los Angeles.

Signs You Need Commercial Furnace Repair

• No heat, short cycling, or intermittent lockouts
• Uneven temperatures, drafts, or poor air balance
• Rising gas or electric bills without increased usage
• Burnt smells, unusual noises, or vibration
• Tripped safeties, ignition failures, or sensor faults
• CO alarm events or combustion concerns

If your AC PRO furnace shows any of these symptoms, prompt troubleshooting prevents downtime and protects occupants.

Our Process for Pasadena Businesses

• Deep Diagnostics: Code scan, component testing, and live data logging
• Airside Analysis: Static pressure, airflow, and balancing verification
• Combustion & Safety: Draft, combustion analysis, and CO testing
• Controls & Integration: Thermostats, economizers, and BMS checks
• Transparent Options: Clear pricing for repair vs. optimize vs. replace
• Precision Repair: OEM-grade parts and documented procedures
• Performance Commissioning: Post-repair verification and handoff report

Every repair is engineered to meet California Mechanical Code and Pasadena’s local requirements, with documentation suitable for facilities and compliance teams.

Indoor Air Quality First

Our mission is healthy air for a healthy life. During furnace repair, we address filters, ventilation rates, and pressure relationships that affect IAQ. We can integrate high-MERV filtration, UV-C, economizer tune-ups, CO2-based ventilation control, and duct sealing to reduce pollutants while maintaining energy efficiency.

Complex and Large-Scale Projects

From historic Pasadena buildings to multi-tenant campuses and labs, our fourth-generation engineering team thrives on complexity. We identify root causes—design flaws, duct constraints, controls conflicts—and deliver durable, code-compliant solutions that stand up to heavy commercial loads and long operating hours.

Factory-Trained Expertise

Our engineers are factory-trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). This foundation in advanced HVAC manufacturing disciplines informs how we service AC PRO commercial furnace and rooftop systems—precise measurements, careful calibration, and meticulous quality control.

Preventive Maintenance Plans

• Seasonal heating inspections and combustion analysis
• Filter strategies for IAQ and equipment protection
• Airflow testing and economizer optimization
• Predictive maintenance with trend reporting
• Priority scheduling and preferred pricing

Well-planned maintenance lowers energy use, reduces emergency calls, and extends equipment life—especially important for AC PRO systems serving critical spaces.

Emergency & Priority Service

We offer priority same-day service in Pasadena for urgent heating issues. Our trucks are stocked for common AC PRO commercial furnace repairs, reducing return visits and downtime. Clear communication and safety-first procedures keep your team and occupants protected throughout the repair.

Pasadena and the Regions We Serve

We proudly serve Pasadena, Los Angeles County, and nearby areas including Orange County, Ventura County, and Western Riverside County. If your portfolio spans multiple sites, we can standardize maintenance and reporting across all locations for consistency and control.

Industries We Support

• Office and corporate campuses
• Retail and shopping centers
• Restaurants and food service
• Healthcare and medical offices
• Education and places of worship
• Manufacturing and light industrial
• Multifamily common areas and HOAs

Why #1 AC Guys

• Fourth-generation family of engineers with 80+ years in engineering
• Proven expertise on AC PRO commercial furnace and rooftop systems
• Precision diagnostics, combustion analysis, and air balancing
• Code-compliant workmanship and documented commissioning
• Mission-driven focus on healthy indoor air and occupant safety
• Specialists in large, complex, and time-critical commercial projects

When Pasadena businesses need Commercial Furnace Repair for AC PRO systems, they choose #1 AC Guys for engineering-grade accuracy and dependable results. Tell us what you’re experiencing, and we’ll deliver a clear plan to restore heat, protect IAQ, and control operating costs.

Ready to schedule? Contact #1 AC Guys for a professional assessment and a transparent repair path tailored to your building, budget, and timeline.