Solar Panel Installer Scam Signs: How to Spot a Fraudulent Solar Company

The FTC logged roughly 630 solar-related complaints in 2018, according to the FTC Consumer Sentinel Network Data Book. By 2023 that number had climbed past 5,300 — a more than sevenfold increase in five years. The growth of the solar market and the growth of solar fraud have tracked each other almost exactly. Most of that fraud follows a three-phase pattern: pressure before you sign, traps buried in the financing, and shortcuts taken after installation begins. And the scam almost always starts at your front door.

Are Door-to-Door Solar Salespeople Legitimate?

Door-to-door solar sales are legal, and some legitimate companies use them. But they are also the primary delivery mechanism for solar scams. High-pressure same-day tactics, claims of limited government programs, and requests to sign before reviewing financing terms are the clearest red flags that the person on your porch is not working in your interest.

The most common door-to-door red flags: pressure to sign tonight because the offer expires, claims that a “government program” makes solar free or nearly free, refusal to leave a written proposal for review, and vague or evasive answers about financing terms. Legitimate solar companies will always allow 24 to 48 hours to review a proposal. A salesperson who cannot wait overnight for your answer is telling you something important about how the rest of the relationship will go.

Federal law gives you a specific protection here. The FTC's Cooling-Off Rule entitles you to cancel any door-to-door contract over $25 within three business days, no reason required. The cancellation right must be disclosed to you in writing at the time of sale. If a salesperson did not give you a written cancellation notice, the three-day window may be extended. For more on door-to-door contractor tactics, see our post on common contractor scams.

What Is the “Free Solar Panels” Scam?

No government program provides genuinely free solar panels. The “free solar” pitch is almost always a solar lease or power purchase agreement being misrepresented as a government benefit. Homeowners who sign without understanding the 20-to-25-year contract attached to their property title can face serious complications when they try to sell or refinance.

Under a solar lease or PPA, a third-party company owns the panels. You pay a monthly fee for the electricity they produce. The arrangement runs 20 to 25 years and is recorded as an encumbrance on your property title, which means it transfers to the next owner when you sell. Buyers' lenders often balk at this, and deals can fall through or require expensive buyouts to close.

There is also a tax credit issue. The federal Investment Tax Credit — currently 30% of the system cost — goes to the company that owns the equipment. Under a lease or PPA, that is the leasing company, not you. Misrepresenting a lease as a “government program” that delivers free panels has triggered enforcement actions by the FTC and multiple state attorneys general. A legitimate company always clearly explains in writing whether the product is a purchase, a loan, a lease, or a PPA — before you sign.

What Is a Solar Loan Scam?

Solar loan scams typically involve hidden dealer fees that inflate the true cost of a system by up to 30%, sometimes without the homeowner's knowledge. The Consumer Financial Protection Bureau issued an alert in 2024 specifically about solar loan dealer fees buried in financing documents, warning that the practice was widespread and that many homeowners had no idea it was happening.

Dealer fees are amounts that the lender pays to the solar contractor as a financing incentive. In a legitimate transaction, that fee is transparent and factored into the quoted price. In the scam version, the contractor inflates the system price to absorb the fee without disclosing it to the homeowner. The financed amount — and the total you repay over the loan term — ends up substantially higher than the actual cost of the equipment and installation.

The clearest warning sign: a cash price and a financed price that differ by more than 10 to 15 percent. If a contractor refuses to provide a separate cash quote alongside the financed option, that refusal itself is a red flag. NPR reporting in 2024 documented equity-stripping schemes where elderly homeowners lost close to $50,000 in home equity through solar loan arrangements they did not fully understand. Always read the full financing document before signing, and compare the total repayment amount to the system's market value.

How Do Solar Tax Credit Scams Work?

Solar tax credit scams typically involve contractors overstating the ITC amount, misrepresenting it as a rebate check rather than a tax credit, or structuring loans with balloon payments timed to coincide with when the homeowner is expected to receive a tax refund — a refund that may never materialize if the homeowner doesn't owe enough in taxes.

The federal ITC is a 30% tax credit. That means it reduces the amount of federal income tax you owe, dollar for dollar. It is not a check the IRS mails you. If you owe less in federal taxes than the credit is worth, you cannot fully use it in a single year — though the excess can roll forward. A contractor who tells you to expect a “30% check in the mail” is either misinformed or deliberately misleading you.

The loan balloon-payment variant is more sophisticated. Some solar loans are structured with a low monthly payment for the first 18 months, then a large balloon payment due. The contractor tells the homeowner that their ITC refund will cover the balloon. When the homeowner files taxes and discovers the credit doesn't produce a cash refund, they miss the balloon payment, the loan principal resets to nearly the original amount, and the monthly payments jump. This structure is not inherently illegal, but it is routinely misrepresented during the sales process. Solar-related complaints consistently spike in the first quarter of each year as homeowners file taxes and discover the ITC doesn't work the way they were told.

What Are the Warning Signs of an Unlicensed Solar Installer?

Unlicensed installers often look identical to legitimate ones during the sales phase. Warning signs emerge in the operational details: no mention of permits, vague answers about subcontractors, refusal to provide a license number in writing, and unusually low bids that cannot survive the cost of proper permitting and licensed labor.

The most direct test is simple: ask for the license number in writing before the first appointment ends. A legitimate licensed contractor provides this without hesitation. An unlicensed contractor will deflect, change the subject, or offer vague assurances about being “registered” or “certified” — neither of which is a substitute for a state-issued contractor license.

Permit-related red flags are equally telling. A quote that does not include permit fees as a line item is suspicious. A contractor who suggests skipping the permit to save money is explicitly asking you to accept unlicensed risk on their behalf. No mention of the utility interconnection process or net metering application is another signal — a legitimate grid-tied installer discusses interconnection as a matter of course, because it is a required step in every grid-tied installation.

The consequences of hiring an unlicensed solar installer are significant: voided equipment warranties, insurance claim denial, fines of $500 to $10,000 or more from local authorities, and in serious cases a forced system removal at the homeowner's expense. For a full breakdown of what's required in your state, see our post on solar contractor license requirements by state.

How Do You Know If a Solar Company Is Legitimate?

A five-point checklist covers the essential bases: verify the license at the state board or CheckLicensed.com, confirm a physical business address and established operating history, read third-party reviews older than 12 months, confirm permits will be pulled before work begins, and never pay more than 10 to 15 percent upfront before installation starts.

CheckLicensed.comlets you verify a solar contractor's license status in seconds, directly from state licensing board data. It takes under two minutes, and it is free. Do this before the first conversation goes further.

Check Google, Yelp, and the BBB for reviews, but weight reviews older than 12 months more heavily — recent reviews are easier to manufacture, and a company that's been in business for several years with a consistent review history is a more reliable signal than a company with a sudden burst of five-star reviews from the past two months. A physical business address — not just a P.O. box or a website contact form — is another baseline legitimacy check.

Payment structure is one of the most reliable tells. A standard solar installation payment schedule looks like this: a deposit of 10 to 15 percent at signing, a progress payment when installation begins, and a final payment after the system passes inspection and is energized. A company demanding 50 percent or more before work begins has reversed the incentive structure in a way that benefits only them. SEIA membership is a positive signal, but it is not a substitute for license verification — membership in an industry association does not require a state contractor license. For a broader look at protecting yourself from contractor fraud, see how to avoid contractor fraud.

What Is the Single Most Important Step Before Signing a Solar Contract?

Verify the license number before the conversation goes further. One search at CheckLicensed.comor your state's contractor licensing board eliminates the entire post-installation scam category — voided warranties, unpermitted systems, forced removal — before a contract is signed. It takes under two minutes and it's free.

The three-phase scam pattern — pressure before signing, traps in the financing, shortcuts after installation — is predictable enough that you can defend against all three with the same basic discipline. Read everything before signing. Compare cash and financed quotes. Understand exactly how the ITC works before factoring it into your budget. And before any of that, verify the license number.