Commercial Boiler Repair in Pasadena

Why Pasadena Chooses #1 AC Guys for Commercial Boiler Repair

We are a fourth‑generation family of HVAC engineers delivering 80+ years of engineering excellence to Pasadena and Los Angeles County. Our mission is healthy air and dependable heat in every building we service. That means your commercial boiler is tuned for safety, efficiency, and comfort—not just restarted. We are experienced with AC PRO–supplied and AC PRO‑branded equipment and service mixed‑brand plants common in large facilities.

Our team is factory‑trained at the manufacturers’ facilities of Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That advanced HVAC training, combined with deep field experience, helps us solve complex hydronic and controls problems quickly and correctly.

What We Repair and Optimize

• Steam and hot‑water commercial boilers (atmospheric, power‑burner, condensing)
• Burners, gas trains, igniters, flame sensors, and combustion air systems
• Pumps, expansion tanks, air separators, valves, and piping
• Heat exchangers, economizers, and flue/venting components
• Boiler controls, BAS/BMS integration, safeties, and sensors
• Water treatment, scaling, corrosion, and makeup water management
• Efficiency tuning: O2/CO trim, draft, combustion analysis, and reset strategies

Common Boiler Issues We Solve

• No heat or intermittent lockouts after short cycling
• High gas usage, soot, or unstable flame due to improper combustion
• Frequent PRV lifts, cavitating pumps, or air in hydronic loops
• Condensing boiler corrosion or heat‑exchanger fouling from poor water quality
• Control faults, sensor drift, and BAS communication errors
• Uneven heating across zones or chronic low delta‑T

Our Engineer‑Led Repair Process

1) Interview and review alarms/logs. 2) Perform safety checks and code compliance screening. 3) Conduct instrumentation‑based diagnostics: combustion analysis, gas pressure, draft, temperature rise, delta‑P, and electrical testing. 4) Identify root causes—not just symptoms—and present options with clear pricing. 5) Complete repairs with quality parts compatible with AC PRO–sourced equipment and manufacturer specifications. 6) Optimize and document: setpoints, calibration, and performance reports you can share with stakeholders.

The result: safer operation, lower fuel consumption, and longer equipment life. If your plant needs strategic upgrades, we can phase improvements—controls, pumps, or heat exchangers—to reduce downtime and budget impact.

Serving Pasadena and Greater LA

We’re local to Pasadena and serve Los Angeles County every day, extending to Orange County, Ventura County, and Western Riverside County. Facilities we support include offices, campuses, hotels, mixed‑use, healthcare, multifamily, retail, and light industrial. If you manage a large or complex property, our engineering background and big‑project experience are built for you.

Healthier Buildings, Cleaner Combustion

Healthy indoor environments start with safe, efficient combustion and proper ventilation. We calibrate burners, verify flue integrity, and tune controls to reduce CO, CO₂, and NOx where applicable. Cleaner burns mean fewer deposits, better heat transfer, and healthier indoor air—core to our company mission.

Preventive Care That Pays Back

• Seasonal inspection with combustion analysis and safety testing
• Water treatment checks to control scaling and corrosion
• Pump performance verification and air elimination
• Sensor calibration and BAS/BMS sequence review
• Efficiency tuning: reset curves, staging, and lead/lag logic

Proactive maintenance helps you avoid emergency outages, reduce fuel spend, and extend asset life—especially on high‑demand systems serving critical operations.

Upgrades and Modernization

When repairs are no longer cost‑effective, we can design and execute targeted upgrades to raise reliability and efficiency: high‑turndown burners, ECM pumps, advanced controls, and condensing retrofits where suitable. We also plan redundancy and phasing to limit downtime and keep tenants and operations comfortable.

Transparent Estimates, Clear Communication

You get straight answers, documented findings, and options aligned to your budget and risk tolerance. We communicate in plain language and provide before/after data so you can see the improvement. Our goal is long‑term reliability—backed by engineering discipline and a family reputation built over four generations.

Ready to Restore Heat in Pasadena?

If your commercial boiler needs expert attention—especially AC PRO–supplied or AC PRO‑branded systems—contact #1 AC Guys. We respond quickly, diagnose precisely, and repair to code. Let our engineer‑led team bring stable heat, lower operating costs, and healthier indoor environments to your building.

• Location: Pasadena, Los Angeles County (with service to Orange, Ventura, and Western Riverside Counties)
• Service: Commercial boiler repair, diagnostics, optimization, and maintenance
• Brand focus: Service for AC PRO–supplied/AC PRO‑branded equipment and mixed‑manufacturer plants