Air-Tro

The company at a glance

Company overview

Air-Tro is a Monrovia heating and air-conditioning company with residential and commercial work across the San Gabriel Valley and greater Los Angeles. Its company history traces the business to John Helbing in 1969 and describes ownership by his sons, Bob and Tony. The firm says its Monrovia location houses offices, a warehouse, and a sheet-metal shop. Air-Tro’s company history.

Look beyond the replacement unit

Air-Tro lists heating and cooling installation, repairs, and ongoing maintenance. For someone comparing replacement proposals, the important discussion extends beyond the equipment model: ask how the contractor will assess the home, existing ducts, room-by-room comfort, and the controls that connect the system.

The company describes a dedicated service department and maintenance agreements as part of its operating history. If continued maintenance matters to your decision, ask what an agreement includes, which tasks carry additional charges, and how it affects service scheduling. A maintenance plan and an equipment warranty serve different purposes.

Questions for the first conversation

• What measurements will support the recommended system capacity?
• Does the proposal include duct inspection, airflow adjustments, and system commissioning?
• Who handles warranty registration, and which labor or maintenance costs remain the homeowner’s responsibility?

Home Review Board matched Air Tro Incorporated to California license 258228. The CSLB record was active on September 8, 2026 and included C-20 heating, ventilation, and air-conditioning, as well as several other classifications. CSLB license record.