Commercial Legionella Prevention (Cooling Towers) in Los Angeles

Cooling towers can aerosolize water that, if unmanaged, may carry Legionella bacteria. Our commercial Legionella prevention service is built to lower risk through sound engineering, vigilant maintenance, and continuous verification. We help your facility align with ASHRAE Standard 188 and public health guidance while keeping operations practical, cost‑effective, and easy to document.

What’s included in our Legionella prevention program

• Comprehensive risk assessment and written Water Management Program (WMP) aligned with ASHRAE 188 and industry best practices.
• Cooling tower cleaning and disinfection for startup, routine maintenance, post‑shutdown, and emergency response.
• Continuous water treatment: oxidizing/non‑oxidizing biocides, scale and corrosion control, automated dosing, conductivity bleed‑off, and pH management.
• Remote monitoring with smart sensors and data logging; optional BMS/BAS integration and compliance dashboards.
• Legionella sampling and testing coordinated through accredited laboratories with trend analysis and action thresholds.
• Operational controls: drift eliminator inspection, dead‑leg mitigation, water turnover strategies, seasonal procedures, and documentation.
• Retrofit and optimization support for towers, heat exchangers, and related plant equipment to improve safety and efficiency.
• Emergency response playbooks and coordination with facility teams during public health investigations.
• On‑site staff training on tower hygiene, testing schedules, and recordkeeping.

We focus on clear, defensible documentation so facility managers can demonstrate due diligence and readiness during audits or inspections. Our reports summarize findings, corrective actions, and verification results in plain language for executives and EHS teams.

Our engineering advantage

#1 AC Guys is a fourth‑generation family of engineers with 80+ years in engineering. Our team is factory‑trained by Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China). We bring big‑project discipline to cooling tower programs, combining mechanical system know‑how with water chemistry and controls expertise. The result: fewer surprises, stronger reliability, and consistent risk reduction for mission‑critical facilities.

Complex property? That’s our specialty. From central plants and multi‑tower banks to mixed VRF‑hydronic interfaces, we engineer practical solutions that respect your load profile, budget, and operational constraints.

Industries we serve

• Hospitals and healthcare networks
• Hotels and resorts
• Universities, schools, and campuses
• Office towers and mixed‑use developments
• Manufacturing and life sciences
• Data centers and broadcast facilities
• Municipal and public buildings

Every site is different. We tailor control strategies to system design, occupancy, water chemistry, and documentation requirements, then verify performance with testing and trend reviews.

How our process works

• Discovery and site survey: gather drawings, water data, and operational practices.
• Risk scoring and WMP development: define control limits, monitoring, and corrective actions.
• Onboarding and stabilization: clean, disinfect, calibrate dosing, and enable monitoring.
• Routine operations: scheduled service, testing, data reviews, and adjustments.
• Quarterly and annual reviews: audit documentation, refine controls, and plan upgrades.
• Incident response: rapid disinfection and communication workflow when thresholds are exceeded.

Our goal is simple: measurable risk reduction that fits your facility’s realities—without overcomplicating your maintenance schedule or budget.

Service area

We serve commercial properties across Los Angeles County and nearby areas, including Orange County, Ventura County, and Western Riverside County. Local experience matters—water sources, climate, and code expectations vary by jurisdiction, and we plan accordingly.

Why Legionella prevention matters in Southern California

Warm weather, variable water conditions, and seasonal loads can create ideal conditions for bacterial growth if towers are not proactively managed. A well‑designed WMP—with consistent cleaning, treatment, monitoring, and documentation—reduces risk to occupants and operations while supporting regulatory alignment and business continuity.

Transparency and documentation

You’ll receive clear service logs, dosing and conductivity records, lab results, and corrective‑action summaries. We help you stay audit‑ready with organized digital records and routine performance reviews.
Testing is coordinated through accredited laboratory partners; results are explained in plain language with recommended next steps.

Why choose #1 AC Guys

• 4th‑generation engineering family with 80+ years in engineering
• Factory‑trained by Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China)
• Expertise in large and complex commercial systems
• ASHRAE 188–aligned programs and practical compliance support
• Local service across Los Angeles and surrounding counties
• Mission‑driven: healthy air and water for a healthier life indoors

If you’re concerned about Legionella risk—or want a second opinion on your current cooling tower program—our team is ready to help with a practical plan and fast implementation.

Start now

Schedule a site assessment to benchmark your current risk, tighten your Water Management Program, and implement monitoring that keeps your towers safe and efficient. Get commercial‑grade service from engineers who understand Los Angeles, your industry, and your operational priorities.