Contractors
Class Code 9519: Air Conditioning Systems—Portable Units—Installation, Service or Repair & Drivers — Workers' Comp Insurance
Covers technicians who install, service, and repair portable and window-unit air conditioning systems, along with the company's drivers. It's a narrower classification than full HVAC contracting, focused on smaller, portable cooling equipment.
- Risk level:
- moderate
What code 9519 covers
Class 9519 applies to businesses installing, servicing, and repairing portable and window-unit air conditioning systems, covering technicians who set up, maintain, and repair this smaller-scale cooling equipment, along with drivers who transport units and parts to customer locations. This is a narrower classification than full HVAC contracting (5537), which covers central and built-in heating, cooling, and refrigeration systems requiring ductwork and more extensive installation. Portable and window-unit work involves less structural installation and ductwork exposure than central HVAC systems, though it still involves equipment handling and electrical connections. Businesses that service both portable units and full central HVAC systems may need to evaluate which classification best fits the bulk of their work, or split payroll accordingly.
Included operations
- Installation of portable and window-unit air conditioning systems
- Service and repair of portable cooling equipment
- Electrical connection work for portable A/C units
- Drivers transporting units and parts to customer locations
Assigned elsewhere
- Central/ducted HVAC system installation and service — see code 5537 (Heating, Ventilation, Air-Conditioning and Refrigeration Systems)
- Refrigeration equipment manufacturing, evaluated under the applicable manufacturing classification
- Electrical wiring beyond the immediate connection of an A/C unit — see code 5190
- Retail sale of portable air conditioning units without installation or service, evaluated under the applicable retail classification
Businesses that typically carry 9519
- Portable and window-unit air conditioning service companies
- Seasonal A/C installation and rental businesses
- Small, owner-operated contracting businesses
- Regional trade contracting companies
- Subcontractors working for general contractors
- Design-build contracting firms
Common misclassifications
Code 5537
Portable A/C service and full central HVAC contracting can be confused, but they're evaluated under separate classifications given the different scope and equipment involved.
Code 9516
Technicians who service both portable A/C units and broader electronic equipment can blend two distinct field-service classifications if that scope isn't tracked.
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What drives the cost of code 9519
- Total payroll for employees performing the classified work, not gross receipts
- Experience modification factor built from claims history
- State-specific base rates and loss costs filed for this class code
- Use of subcontractors and whether they carry their own workers' comp coverage
- Safety programs, jobsite supervision, and documented training
- Payroll properly split across multiple classifications when work crosses trades
What underwriters look for
- Years in business and prior workers' comp loss history
- Types of jobs typically performed (new construction, remodel, residential vs. commercial) and average job size
- Whether subcontractors are used and certificates of insurance are collected and tracked
- Total payroll for employees actually performing the classified work
- Safety program, training documentation, and any OSHA history
Eligibility
State differences
This entry uses standard NCCI class code phraseology, which applies in most NCCI-governed states. Pennsylvania (PCRB), Delaware (DCRB), California (WCIRB), New Jersey (NJCRIB), Michigan, New York (NYCIRB), and Massachusetts maintain their own classification manuals, and code numbers or phraseology can differ there. Our agency confirms the correct classification for your state before quoting.
Where code 9519 fits
Quote class code 9519.
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Mon–Fri, 8:00am–6:00pm ET · Independent agency licensed in 23 states
Class code 9519 questions
How is this different from the general HVAC contractor code?
5537 covers central, ducted HVAC systems; 9519 is specific to portable and window-unit air conditioning, which involves less structural installation.
Does this code cover our delivery/service drivers?
Yes, drivers transporting portable units and parts to customer locations are part of this classification.
What if we service both portable units and central HVAC systems?
We review the balance of your business to determine the best classification fit, or whether payroll should be split between the two.
Does this cover retail sales of portable A/C units without installation?
No, pure retail sales without installation or service would be evaluated under a different, retail-focused classification.
Last reviewed · Reviewed by Provident Financial Group licensed agents