Solar Company Red Flags: How to Avoid a Bad Installer

The solar industry has plenty of reputable installers, but it also attracts aggressive door-to-door and telemarketing sales operations. Here's what to watch for.

Sales tactic red flags

• High-pressure, same-day-signature deals — a legitimate five-figure home investment shouldn't require a decision before you can sleep on it or get a second quote.
• "Government program" framing that sounds like a mandate — solar incentives are real but no state or federal program requires you to buy solar, and pitches implying otherwise are misleading.
• Vague or unwritten savings promises — insist on a specific, written first-year production estimate in kWh, not just a dollar figure.
• Reps who can't answer basic equipment questions — if a salesperson can't tell you the specific panel and inverter model being quoted, that's often a sign of a lead-generation company reselling to a subcontracted installer.

Contract red flags

• No written product, performance, and workmanship warranty terms
• Escalator clauses in a lease/PPA that aren't clearly disclosed upfront
• Financing terms (APR, total cost over the loan term) that aren't itemized separately from the "monthly payment" pitch
• No clear timeline for permitting, installation, and utility interconnection (a vague "a few months" instead of a written estimate)

How to verify a company before signing

• Confirm active state contractor/electrical licensing through your state's licensing board database
• Check how long the company has operated locally (not just how long the parent brand has existed nationally)
• Read reviews specifically mentioning post-installation service and warranty claims, not just installation-day experiences
• Ask for local references you can actually call, not just posted testimonials