Arizona licenses insulation work under the C-40 Insulation class, and many of these shops are small, owner-run LLCs or corporations. A working member or shareholder below 50% is typically on the workers comp policy as an employee, while an owner at 50% or more joins only through a written election the carrier accepts.
In a small insulation company, the owners are often the installers. That makes Arizona's ownership line the first question on the application, followed by how the company treats installers it pays as independent contractors.
| Rule | What It Means for an Insulation Shop | Source |
|---|---|---|
| License class | C-40 Insulation. | Arizona Administrative Code R4-9-102 |
| Owners under 50% | A member or shareholder who works in the business, blowing attics or spraying foam, is treated as an employee. | Arizona Revised Statutes 23-901 |
| Owners at 50% or more | Deemed an employee only by written election accepted by the carrier through an endorsement, at its discretion. | Arizona Revised Statutes 23-901 |
| Independent installers | Arizona's statute tests whether an installer is truly independent, and a signed agreement starts from a presumption that can be rebutted. | Arizona Revised Statutes 23-902 |
| Installers you control | Where you keep supervision or control and the work is part of your trade, contractors and their workers are treated as yours. | Arizona Revised Statutes 23-902 |
| Sole proprietor installer | May waive coverage as an independent contractor on a waiver signed and dated by the installer and your carrier. | Arizona Revised Statutes 23-961 |
The ROC license and the workers comp classification answer different questions: one is what you may contract for, the other is how payroll is rated, and the carrier decides the second. A covered owner's assumed wage is set by statute at $600 a month or more, and owner elections are settled with the carrier. More on the state's rules is on the Arizona workers comp for contractors and restaurants page.
Insulation payroll in Arizona goes through NCCI's classification system. As far as we found, no official Arizona class list is public, so Arizona codes are not shown here. Batts, blown fill, spray foam, pipe and duct insulation and removal of old material can raise different questions, and the carrier answers them from what each installer does. California's insulation code doesn't carry over; see workers comp classification codes for who publishes each state's list.
Name Every Kind of Job You Do
List foam, tear-out and mechanical insulation separately on the application. We don't assign or confirm codes.
Illustrative scenario
Illustrative only. Two partners each own half of a Tucson insulation corporation, and both run the spray foam rig most days. A third working shareholder holds a small stake and drives the blown-fill truck. Because each partner sits at 50%, neither is on the policy unless they elect in writing and the carrier accepts it by endorsement. The third shareholder, under the line, is treated as an employee. In Nevada the same three would be sorted by office and pay rather than ownership share, because Nevada sets no percentage for owner choices.
Assuming Equal Partners Are Under the Line
Partners who each own exactly half often assume they count as minority owners. Arizona draws the line at 50% or more, so an equal partner is at the line, not under it. If both partners spray foam every day, settle their status with the carrier before an attic injury forces the question.
Workers comp responds to injuries to your installers. Overspray on a neighbor's car, a fire traced to a job or a homeowner's complaint about fumes typically belongs under general liability or pollution coverage. The insulation workers comp insurance hub compares three states, and Nevada spray foam workers comp shows how Nevada handles owners without a percentage.
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Not automatically. An owner holding 50% or more counts as an employee only after electing it in writing and getting the carrier's acceptance by endorsement, which is at the carrier's discretion. A working shareholder below that line is treated as an employee. Confirm your status with the carrier before the policy starts.
Insulation work is licensed under C-40 Insulation. That license doesn't set the workers comp classification, which comes from the work each installer does and the carrier's determination. Confirm the license scope with the ROC.
Arizona applies a statutory test to independent contractor status, and a written agreement gives only a rebuttable presumption. If you schedule the jobs, supply the rig and check the work, the installers may still be treated as your employees. A sole proprietor installer can waive on a form your carrier also signs.
It can. Spray foam typically draws more underwriting questions than batts or blown fill, and the carrier decides how the work is classified from actual duties. Describe foam work separately on the application so the quote reflects it.
Arizona sets an assumed wage for covered owners: no less than $600 a month. What the carrier uses above that may depend on its rules and the owner's role, so ask when the endorsement is added.
6 official sources
Reviewed by David Gleason, Principal, on .
Next Level Experience. Insurance Done Right.
Arizona insulation workers comp, from owner stakes to independent installers.
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