Buyer Protection

Solar Sales Red Flags: How to Avoid Bad Deals

GoSolarMath.com · Updated June 2026 · 7 min read

Solar is a legitimate, financially sound investment for most homeowners — but the sales side of the industry has real problems. Door-to-door and phone sales tactics have given the industry a reputation problem. Here's how to protect yourself.

Red Flag: High-Pressure, Same-Day Signing

Legitimate solar decisions don't need to happen today. If a salesperson pushes hard for an immediate signature, uses countdown timers, or claims a special price expires "right now," treat that as a warning sign. Take time to compare quotes.

Red Flag: "Free Solar" Claims

There's no such thing as truly free solar. Leases and PPAs advertised as "free installation" still involve you paying monthly for the electricity or lease — you're just not paying the upfront equipment cost. Understand the total cost of any "free" offer before signing.

Red Flag: Guaranteed Savings Percentages

Be skeptical of guarantees like "save 40% guaranteed" without your specific usage and rate data being analyzed first. Real savings estimates should be based on your actual electric bill history and your utility's specific net metering policy — not a generic company-wide promise.

Red Flag: Door-to-Door Pricing Without a Formal Quote

A legitimate installer provides a detailed written quote specifying system size, equipment brand and model, warranty terms, and total cost — not a verbal estimate scribbled on a clipboard. If a company won't put specifics in writing, walk away.

Red Flag: No Mention of Permits or Interconnection

Legitimate solar installations require permits and utility interconnection approval before the system can be turned on. If a contractor glosses over this process or implies installation is instant, that's a red flag for corner-cutting.

Red Flag: Pressure to Use Their In-House Financing Only

While in-house financing can be convenient, you should be free to shop your own financing (bank loan, credit union, etc.) if it offers better terms. Pressure to exclusively use a company's financing partner, especially with unusually high rates, is worth questioning.

How to Protect Yourself

Know Your Numbers Before Any Sales Call

Calculate your own independent estimate first.

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