Contractors, Warranties & Upkeep
Red Flags in Solar Quotes and Sales Pitches Every Homeowner Should Know
Warning signs in solar proposals and sales tactics, from fake government programs and inflated production claims to pressure deadlines, hidden fees and vague contracts.
The most common red flags in a solar quote are pressure to sign immediately, claims that the government will pay for your system, production estimates that cannot be explained, missing equipment model numbers, large upfront deposits and financing terms that are described only as a low monthly payment. None of these proves a company is dishonest, but each is a reason to slow down, ask for documents in writing and compare other proposals. This guide lists the warning signs, explains why each matters and shows what to do instead.
Red flag 1: Pressure to sign today
"This price is only good today" or "the incentive ends tonight" is a sales tactic. Real prices and programs rarely vanish in hours. If a program has a true deadline, the administrator's website will say so. Take at least a day to read the contract, and ask for the offer in writing.
What to do: say you will compare proposals. A reputable installer will agree.
Red flag 2: "Free solar" or "the government pays"
Claims of free panels often hide a lease, PPA or loan with fees. Federal incentives, where they apply, reduce your tax bill; they do not hand you a system. The 2025 legislation ended the homeowner credit for expenditures after 2025, so any proposal assuming it for a 2026 purchase needs close scrutiny. See the federal tax credit guide.
What to do: ask which law, program and form supports each claim, and verify at the IRS, DSIRE or your utility.
Red flag 3: Savings promises with no math
A claim such as "you will save $60,000" is meaningless without assumptions. Ask for the production estimate, your current rate, the assumed rate escalator, degradation, the export credit and the time period.
Illustrative check: if a company claims $1,900 in first-year savings from 10,800 kWh and your average rate is 20 cents, the maximum possible is 10,800 x 0.20 = $2,160 if all production offsets retail power. If your utility pays less for exports, savings will be lower. Check whether the claim is plausible against your own bills.
Red flag 4: Production estimates that seem too good
Request the modeling report and the assumptions for tilt, azimuth, shading and losses. Compare against NREL's PVWatts for your address. A gap of a few percent is normal; a very large one deserves an explanation.
Red flag 5: Vague equipment descriptions
If the proposal says "premium panels" without a manufacturer and model number, you cannot verify warranty terms or compare quotes. Insist on exact makes and models, including the inverter, and the number of panels.
Red flag 6: Payment structures that favor the installer
Be careful if the contract asks for:
- A large deposit before permits are approved
- Full payment on the day of installation
- A signed "completion certificate" before the system is inspected and permitted to operate, since it may trigger loan funding
Check your state's rules on deposits and tie payments to milestones.
Red flag 7: Financing described only by monthly payment
A low monthly payment can hide a long term, a high APR or a dealer fee. Ask for the APR, term, total amount paid, fees and prepayment terms in writing. See financing options.
Illustrative example: a $25,000 loan at 7.5% over 25 years has a lower monthly payment than over 15 years, but the interest total is much larger. The monthly figure alone hides that.
Red flag 8: Payment depends on an incentive you may not receive
Some loans are structured with a lower payment that assumes you will apply a tax credit to the principal. If the credit does not arrive, the payment can jump. Ask what happens in that case, in writing.
Red flag 9: Unlicensed or uninsured crews
If the company cannot show a license number and insurance certificates, or the contract names a different entity than the one who sold you the system, walk away until it is clarified.
Red flag 10: Door-to-door and phone pitches with unclear identity
Be careful when a salesperson claims to represent your utility or the government. Utilities do not typically sell solar through unsolicited visits. Ask for ID and verify with the utility directly.
Red flag 11: Roof ignored
An installer who does not inspect the roof or mention its age may be hiding a future cost. If the roof needs replacement in a few years, removing and reinstalling panels will cost extra.
Red flag 12: Weak or unclear warranties
Warranties should be in the contract and state who honors them. A five-year workmanship warranty on a 25-year system, or no mention of roof leak coverage, is something to weigh. See warranty and lifespan.
Quick reference table
| Warning sign | Why it matters | Safer step |
|---|---|---|
| Same-day deadline | Prevents comparison | Take time, get quotes |
| "Free" or "government-paid" | May hide lease or loan | Request legal basis |
| No equipment models | Cannot verify warranty | Require make and model |
| Big upfront deposit | Risk if work never starts | Pay by milestones |
| Only monthly payment shown | Hides APR and fees | Get total cost |
| Unclear license | Legal and safety risk | Verify with state board |
| Savings with no assumptions | Cannot be tested | Ask for production model |
Where to report problems
If you believe you were misled, you can contact your state attorney general's consumer protection office, the Federal Trade Commission and the Consumer Financial Protection Bureau (for financing issues). Keep all documents, emails and texts.
When to get professional help
If a contract is complex or a dispute arises, a consumer protection attorney or a legal aid organization can review your options.
Frequently asked questions
Is a high-pressure salesperson always a bad sign?
Not always, but pressure to skip comparison is a warning. A good company is comfortable with you taking time.
What should I do if I already signed?
Check the cancellation window in the contract and under federal and state law. Act quickly and send written notice by a trackable method.
Are online-only quotes reliable?
They can provide rough estimates, but accurate pricing requires roof details and an electrical review. Treat them as a first step.
Should I use the quote checklist?
Yes. The checklist covers the items above in a printable form.
Sources
- Federal Trade Commission — information on deceptive sales practices
- Consumer Financial Protection Bureau — complaints about financing
- National Renewable Energy Laboratory — PVWatts for checking production estimates
- Internal Revenue Service — verifying tax credit claims
