If a solar installer showed up at your door, sat down at your kitchen table, and told you this deal expires tonight — that’s your first red flag.
The solar industry has expanded fast across the South, and not all of the companies rushing in are reputable. Some cut corners on permits. Some offer low-ball quotes to win the contract, then disappear once the system is installed. Others push products with better margins for them, not better performance for you.
This guide covers the biggest red flags to watch before you sign anything — and what a legitimate installer looks like instead.
What Are the Biggest Solar Installer Red Flags?
The most important red flags: high-pressure closing tactics, vague or short warranties, no verifiable local track record, permits not included in the contract, and quotes that come in suspiciously below market rate. Any one of these should make you pause. More than two, and you should walk away and get another quote.
1. High-Pressure Sales Tactics
“This price expires tonight.” “I can’t guarantee this quote next week.” “My manager will only approve this if you sign today.”
Legitimate solar installers don’t use expiring offers. Solar pricing is driven by equipment costs, labor, and permitting fees — none of which change overnight. When a salesperson creates artificial urgency, it almost always means they don’t want you to get competing quotes.
A reputable installer will give you time to think, ask questions, and compare. If they push back on that, they’re not the right company for a system that will live on your roof for 25 or more years.
2. No Physical Address or Verifiable Local Track Record
Some solar companies operate as lead generators — they sell your contact information to subcontractors, take a cut, and move on. Others are regional canvassing operations that enter a market hard for 18 months, then leave before warranty complaints pile up.
Before signing, verify:
- The company has a physical business address you can verify on Google Maps
- They have third-party reviews on Google, Yelp, or the BBB — not just testimonials on their own website
- They’ve operated in your area for at least three years
- They hold a valid state contractor’s license you can look up with your state licensing board
If you can’t verify their license number, or if they have a pattern of unresolved complaints, keep looking.
3. The Quote Is Suspiciously Low
Solar quotes vary, but not wildly. If three installers quote $28,000–$33,000 for a 12 kW system and a fourth comes in at $18,000, something is off. That gap usually means lower-tier panels with worse degradation rates, an undersized system that won’t cover your actual usage, missing components like monitoring or a roof warranty, or a plan to add change orders once you’re committed.
Know what a realistic number looks like before you sit down with any installer. Understanding the cost per watt for solar in the South gives you the baseline you need to evaluate any quote.
4. Vague or Short Warranty Terms
A residential solar installation comes with multiple warranties, and any honest installer will be specific about all of them:
- Panel production warranty: 25–30 years from a Tier 1 manufacturer (LG, Panasonic, REC, SunPower, Qcells)
- Inverter warranty: 10–12 years minimum; microinverter brands like Enphase offer 25 years
- Workmanship and roof penetration warranty: 10 years minimum — this protects you if a roof leak develops at any panel attachment point
- System monitoring: Should be included for the system’s lifetime, not sold as an add-on
If a salesperson can’t tell you the panel manufacturer, model, and warranty term without looking it up — or if the contract is vague about any of these — ask for written specifics before proceeding.
5. They Don’t Pull Permits
Every residential solar installation requires permits from your local jurisdiction and a utility interconnection inspection. This isn’t optional or regional — it’s required everywhere.
Some cut-rate installers skip permits to speed up the job and avoid fees, which typically run $200–$500. The consequences fall entirely on you: code violations that surface at resale, a utility that refuses to connect the system, and insurance that may deny claims for damage from an unpermitted electrical installation.
Ask directly: “Will you pull all required permits and schedule the inspection?” If they suggest permits aren’t necessary in your area, verify that claim with your local building department yourself.
6. Utility Interconnection Is an Afterthought
Getting your system approved to export power requires a formal interconnection application with your utility — Duke Energy, Georgia Power, TVA, or whoever serves your address. This process takes weeks to months and must be completed before you can legally run excess power back to the grid.
A quality installer manages this process as part of the project scope and keeps you informed on timeline. A red flag is an installer who finishes the installation, then leaves you to figure out interconnection on your own — or who doesn’t mention it at all during the sales conversation.
7. No Roof Assessment Before Quoting
Solar panels last 25–30 years. If your roof needs replacement in 10 years, you’ll pay $3,000–$8,000 to remove, store, and reinstall the array on top of roofing costs. A good installer either assesses the roof during the site visit or refers you to a roofer before quoting.
If a company is willing to quote — or worse, install — without any discussion of roof age or condition, they’re not thinking about your long-term outcome.
8. Battery Backup Isn’t Discussed
A solar-only system doesn’t keep your lights on during a power outage unless you also have battery storage. Your panels shut off during a grid outage as a safety requirement. In the South — where hurricanes, ice storms, and summer peak demand regularly stress the grid — this matters more than most installers let on.
A quality installer will walk you through battery options, costs, and realistic backup scenarios without being asked. If the salesperson dismisses the question or only offers one premium option with no explanation, that’s worth noting.
If you’re researching home backup independently, the EcoFlow DELTA Max is a solid portable option for essential loads, while larger whole-home systems like the Bluetti EP500 Pro can run HVAC and major appliances through multi-day outages.
9. Financing Terms Are Rushed or Buried
Solar financing quality varies enormously. A 25-year solar loan at 6.99% APR costs dramatically more than one at 3.99%. Some lender products embed dealer fees that inflate your effective rate by 1–2 percentage points above what’s disclosed upfront.
Watch for these financing red flags:
- Pressure to sign financing documents on the same day as the sales visit
- Unwillingness to let you take the loan paperwork home to review
- A payback calculation that assumes the 30% federal ITC — that credit expired December 31, 2025 for purchased systems. Any installer still quoting payback based on a 30% federal tax credit is using outdated figures
10. One-Sided Cancellation Terms
Read the cancellation clause before you sign anything. Some solar contracts impose fees of $1,000–$5,000 if you cancel after signing, even before a single panel is installed. Others auto-renew unless you send a written cancellation within a specific window.
Know your rights: federal law gives you 3 business days to cancel any contract signed in your home without penalty (the FTC’s cooling-off rule). Beyond that window, your contract language controls — so read it.
What a Good Solar Installer Looks Like
The contrast is instructive. A reputable company will provide a written proposal that lists panel manufacturer and model, inverter model, and all warranty terms. They’ll offer references from local customers who will actually speak with you. They’ll handle permitting as standard practice, give you a realistic interconnection timeline, and be willing to lose your business if you want more time to decide.
Going into a sales visit prepared makes a significant difference. Our guide to questions to ask a solar installer before you sign covers the specifics — it’s worth reviewing before your first site visit.
Frequently Asked Questions
How do I verify a solar installer is licensed?
Ask the installer for their state contractor’s license number, then look it up directly on your state’s licensing board website. Most states have a public database where you can confirm the license is active, check for disciplinary actions, and verify the license type covers electrical or solar installations.
Can a solar company legally skip permits?
No. Residential solar installations require permits and inspections in virtually every jurisdiction in the United States. Skipping permits creates legal liability for the homeowner, can void homeowner’s insurance coverage on related damage, and typically prevents your utility from approving grid interconnection. Always confirm permits are included in your contract, in writing.
What warranties should a solar installation include?
Expect a 25–30 year panel production warranty, a 10–25 year inverter warranty depending on brand, and a minimum 10-year workmanship warranty covering roof penetrations and attachment points. If any of these are absent, shorter, or vague in the contract, ask for written clarification before signing.
Is the 30% federal solar tax credit still available in 2026?
No. The 30% federal residential ITC expired December 31, 2025 for homeowners purchasing solar with cash or a loan. Any installer quoting payback timelines that assume a 30% tax credit is using outdated figures. Solar leases and PPAs may still access incentives through 2027 via the commercial 48E credit passed through to lessees.
What should I do if I already signed with a bad installer?
If you signed at your home, federal law gives you three business days to cancel without penalty under the FTC’s cooling-off rule. Beyond that window, review your contract’s cancellation terms. If the company is unresponsive or has committed fraud, contact your state attorney general’s consumer protection office and file a complaint with the FTC at reportfraud.ftc.gov.
Bottom Line
Reputable solar installers don’t need high-pressure tactics — they earn the business by being specific, transparent, and patient. If more than one or two of these red flags came up during a sales conversation, get at least one more quote before committing to a system that will be on your roof for the next quarter century.