MASON PRO SERVICES | PHOENIX, ARIZONA | FAMILY-OWNEDCommercial HVAC Service Technician IIICommercial Level 3 | Advanced Journeyman TechnicianPAY: $44-$54/hour + monthly performance bonuses | Monday-Friday, 7:00 AM-6:00 PM | On-call rotationLead the most complex commercial service calls.Mason Pro Services is hiring an advanced commercial technician to handle everyday service work and the most difficult diagnostic calls across large and specialized HVAC systems.What You'll OwnHandle commercial PMs, no-cool/no-heat calls, inspections, repairs and customer communicationDiagnose and repair package and split systems up to 100 tons, plus VRF, VFD, boilers, cooling towers, pumps and chillersResolve intermittent faults, communication issues, nuisance lockouts, complex controls and difficult hydronic problemsPerform advanced testing including combustion analysis, isolation testing, building-pressure diagnostics and airflow measurementComplete detailed documentation, own high-impact callbacks, mentor technicians and participate in the on-call rotationWhat You Bring8+ years of commercial HVAC service experience with top-tier diagnostic abilityEPA 608 Universal certificationDemonstrated experience with large commercial equipment, controls, hydronics and complex electrical systemsValid driver's license and a safe driving recordNATE Core + Specialty preferred; VRF, chiller, boiler and controls certifications are highly valuedWhy Technicians Choose Mason ProCompany contribution toward health coverage401(k) plan with company matchTool allowance and company-supported tool programsTake-home company vehicleFamily-owned and operated - local leadership without corporate layersClear career paths with defined advancement opportunitiesPaid technical training, certification support and hands-on resourcesReady to talk? If you're the technician others call when the normal answer does not work, we should talk. Apply today for a confidential conversation about skill, pay and long-term fit.