Commercial Cooling Tower Repair in Ontario, CA

What We Repair and Optimize on Commercial Cooling Towers

We address performance, reliability, and safety across the entire tower system—not just the obvious failure. Our team troubleshoots, repairs, and verifies:

• Fan systems: motors, gear reducers, shafts, couplings, bearings, blades, pitch, guards, and vibration isolation
• Mechanical alignment: laser belt and sheave alignment, shaft balancing, soft‑foot correction
• Hydronics: basin leaks, sump cleaning, strainers, nozzles, fill media, drift eliminators, and make‑up/bleed controls
• Electrical and controls: starters, contactors, VFDs, sensors, safeties, BAS integration, and sequencing for multi‑cell towers
• Structural integrity: corrosion mitigation, coatings, panel repairs, access platforms, safety upgrades
• Performance validation: thermal approach, airflow, water flow, and heat rejection testing under real load

Why Ontario Businesses Choose #1 AC Guys

• Four generations, 80+ years of engineering: We solve complex, high‑stakes problems with a systems mindset.
• Factory‑trained engineers: Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), Haier (China).
• AC PRO supply access: When specified, we source OEM‑grade components through AC PRO to minimize downtime.
• Commercial expertise: From office towers and logistics hubs to healthcare, hospitality, and data‑critical sites.
• Safety and compliance: Work aligned with best practices and standards such as ASHRAE guidance and site safety requirements.
• Transparent reporting: Root‑cause findings, photos, measurements, and commissioning data included.

Our Repair Process: Diagnose • Repair • Validate

1) Diagnose: We begin with a structured assessment—visual inspection, vibration checks, electrical testing, and thermal performance analysis. We map symptoms to causes and present options with clear timelines and costs.

2) Repair: We execute the plan with attention to safety, lockout/tagout, and site coordination. Typical actions include motor or gearbox replacement, bearing swaps, alignment and balancing, fill and drift eliminator replacement, basin sealing, nozzle restoration, and controls/VFD tuning.

3) Validate: We confirm results with on‑site testing—amperage, vibration, GPM, approach temperature, fan speed, and noise levels—to ensure your tower meets design intent and load requirements.

Preventive Maintenance Programs

A strong PM plan extends equipment life and stabilizes operating costs. Our maintenance services include:

• Quarterly or seasonal inspections with detailed checklists and trend logs
• Mechanical services: lubrication, alignment verification, belt tension, fastener torque, and bearing checks
• Performance audits: thermal approach, water flow, airflow, and motor load
• Cleaning services: basin and sump cleaning, debris removal, nozzle and strainer care
• Fill and drift eliminator condition assessments with planned replacements
• Controls tuning: VFD optimization, staging/sequencing for multi‑cell towers
• Water treatment coordination: We work with your certified provider to support Legionella risk reduction and scale/corrosion control

The result is fewer emergency calls, lower energy consumption, and greater reliability during peak Inland Empire heat.

AC PRO–Supplied Components When Specified

Need parts in a hurry? We can source OEM‑grade components through AC PRO when the project or client specifies it—helping compress lead times for motors, belts, drives, controls, and accessories. We remain brand‑neutral and service‑first, matching components to your performance and budget goals.

Rapid Response in Ontario, CA

We prioritize fast turnaround for Ontario facilities and the nearby Inland Empire corridor. In most cases, we can offer same‑day or next‑day dispatch, coordinated with site access and safety requirements to minimize disruption to operations.

Integrated Commercial HVAC Expertise

Cooling towers rarely fail in isolation. Our commercial team understands the entire plant—chillers, pumps, heat exchangers, water treatment interfaces, and building automation—so fixes deliver measurable improvements, not temporary patches.

Service Area

We proudly serve Ontario and neighboring corridors, with regular coverage across Los Angeles County and surrounding regions including Orange County, Ventura County, and Western Riverside County.

About #1 AC Guys

#1 AC Guys is a family‑owned Southern California company led by a fourth‑generation engineering team with 80+ years of cumulative engineering experience. Our mission is simple: healthier, safer air and reliable cooling for healthier lives and stronger businesses. From emergency repairs to long‑term optimization, we stand behind our work with clear communication and data‑driven results.

Get a Quote

Need commercial cooling tower repair in Ontario, CA? Contact #1 AC Guys to schedule diagnostics or request a fast estimate. We’ll align on scope, parts strategy (including AC PRO‑supplied OEM components when specified), timeline, and testing criteria—then deliver a repair that performs.