Solar Installer Red Flags: How to Spot a Bad Contractor
High-pressure sales, "today only" pricing, vague warranties, and unverifiable claims — here are the solar installer red flags and the questions that expose them.
Sales pressure is the first red flag
"Sign today for the best price", "the credit is ending this week", or a sales rep who won't leave — legitimate solar is a considered purchase. High-pressure tactics correlate with inflated pricing and poor follow-through.
Vague contract terms are the second
A workmanship warranty under 10 years, an unclear escalation clause on a lease, or a quote that hides equipment brands and degradation rates. Every one of these is a real cost over 25 years.
Verify, don't trust
Check the contractor's license, insurance, and standing with your state licensing board. Ask for 3 local references and visit one installed system. Confirm who handles permits, inspection, and interconnection — and what happens if the utility delays.
FAQ
How do I know if a solar installer is legit?
Verify license/insurance, get 3–5 quotes, read the full contract, check local references, and avoid high-pressure "today only" tactics.
What is a red flag in a solar contract?
Short workmanship warranty (<10 yrs), vague equipment specs, lease escalators without disclosure, and promises of "guaranteed" savings that outstrip real state data.
Should I trust door-to-door solar sales?
Be cautious. Legit installers exist, but door-to-door high-pressure sales are a classic red flag. Verify everything in writing before signing.
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Sources
- U.S. EIA — electricity rates by state, eia.gov/electricity/monthly
- NREL PVWatts v8 — solar production by location, pvwatts.nrel.gov
- DSIRE — state incentives and net metering, dsireusa.org
- See how every figure on this page is calculated — PVFig methodology.
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