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.
By The PVFig Editorial Team · 2026-08-10 · reviewed against EIA, NREL and DSIRE sources
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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