Licensed Solar Contractor in Hawaii: How to Verify Before You Hire

April 8, 2026 — 6 min read

Does Hawaii Require a License for Solar Installation?

Yes, Hawaii requires a specific Specialty Contractor license — C-61 (Solar) — issued by the Department of Commerce and Consumer Affairs (DCCA) Professional & Vocational Licensing (PVL) division. Any contractor installing solar photovoltaic or solar thermal systems in Hawaii must hold this license or work under the supervision of one who does.

Hawaii leads the nation in residential solar adoption per capita, with over 35% of single-family homes carrying rooftop solar as of 2024 — the highest rate of any U.S. state. This high adoption rate has attracted both reputable installers and out-of-state contractors who may not carry the required Hawaii credentials. Verifying the C-61 license before hiring is essential.

Hawaii's licensing requirement reflects the complexity of solar work in the islands: high winds, salt air corrosion, hurricane-load structural standards, and a grid managed by Hawaiian Electric (HECO) and Kauai Island Utility Cooperative (KIUC) with specific interconnection requirements. Licensed contractors understand these local conditions; unlicensed contractors often do not.

What Is the C-61 Solar Contractor License?

The C-61 is a Specialty Contractor license classification covering the installation, repair, and maintenance of solar energy systems, including photovoltaic panels, inverters, racking systems, and solar water heating equipment. It is issued by the Hawaii DCCA's Professional & Vocational Licensing division and must be renewed biennially.

To qualify for a C-61 license, applicants must demonstrate four years of relevant experience, pass a trade examination, carry general liability insurance, and pay licensing fees. The license is tied to a qualifying individual — typically the owner or a designated employee — whose experience and exam scores support the company's license. If that qualifying individual leaves the company, the company must designate a new qualifier or the license becomes inactive.

Hawaii also requires contractors performing electrical work as part of a solar installation to hold a C-13 (Electrical) license or to subcontract the electrical portion to a licensed C-13 contractor. Homeowners should confirm whether their solar company is handling electrical work in-house with a C-13 license or using a licensed subcontractor.

How Do You Verify a Solar Contractor's License in Hawaii?

Verify Hawaii solar contractor licenses at pvl.ehawaii.gov, the DCCA's public license lookup portal. Search by contractor name, company name, or license number to confirm the C-61 license status, expiration date, and any disciplinary actions on record.

Steps to verify:

• Ask the contractor for their C-61 license number and, if they handle electrical work in-house, their C-13 license number.
• Visit pvl.ehawaii.gov and search by license number or company name.
• Confirm the license type reads "C-61 Solar" and that the status is "Active."
• Check the expiration date — Hawaii licenses renew biennially, and many contractors let credentials lapse between renewals.
• Review any complaint or disciplinary history visible in the PVL system.
• Request certificates of general liability and workers' compensation insurance.

Hawaii's DCCA reports that contractor complaints are among the most common grievances filed with the office. Performing this verification before signing a contract is one of the simplest consumer protections available.

What Do the License Classifications Mean for Solar Work in Hawaii?

Hawaii contractor licenses are divided into General Engineering (A), General Building (B), and Specialty (C) classifications. Solar contractors operate under the Specialty classification, specifically C-61. A contractor holding only a general B license cannot legally perform solar installations without also holding a C-61.

Some Hawaii solar companies hold multiple C-class licenses, such as C-61 (Solar) and C-13 (Electrical), allowing them to self-perform all aspects of the installation. Others hold only the C-61 and subcontract electrical work. Both approaches are legal, but you should confirm the arrangement before work begins and verify the subcontractor's credentials separately.

Roofing work associated with solar installation — waterproofing, flashing, and penetration sealing — may require a C-42 (Roofing) license if the scope extends beyond incidental roof work. Ask your contractor which license covers each portion of the job.

What Are the Bond and Insurance Requirements in Hawaii?

Hawaii requires C-61 licensed contractors to carry a minimum surety bond and general liability insurance as conditions of licensure. The exact bond amount is set by the Hawaii DCCA and is verified at the time of license application and renewal. Contractors must also carry workers' compensation insurance for any employees.

Homeowners should request a certificate of insurance directly from the contractor's insurer — not just a copy provided by the contractor — to confirm coverage is active and adequate. For most residential solar projects in Hawaii, look for a minimum of $500,000 in general liability coverage. Hawaii's high cost of labor and materials means that inadequate coverage can leave homeowners underprotected in the event of property damage or injury.

What Are the Risks of Hiring an Unlicensed Solar Contractor in Hawaii?

Hiring an unlicensed solar contractor in Hawaii creates serious legal and financial exposure. Unlicensed work cannot be permitted through the county building department, and unpermitted solar installations are subject to removal orders. Hawaiian Electric (HECO) requires a valid permit and licensed installation as part of its interconnection application — without this, your system cannot legally connect to the grid or earn net energy metering credits.

Property insurance complications are significant. If an unlicensed installation causes a fire or structural damage, your insurer may deny coverage on the grounds that the work was performed without a license or permit. Given that Hawaii homeowner's insurance rates are already elevated due to hurricane and volcanic risk, an uncovered claim can be financially devastating.

Hawaii law also prohibits unlicensed contractors from filing liens on your property to collect payment, but that protection does not help you recover money already paid. The state's Contractor License Recovery Fund provides limited restitution for consumers harmed by licensed contractors — not unlicensed ones — making pre-hire verification even more critical.

Protect your home and your investment before signing anything. CheckLicensed.comlets you verify any contractor's Hawaii C-61 license status instantly for $0.99 — a small step that safeguards your solar investment in one of the sunniest and most solar-active states in the country.