Solar panels are famously low-maintenance. They sit on your roof, quietly turning sunlight into savings, and most days you never think about them. But "low-maintenance" isn't "no-maintenance," and there are a handful of moments in every system's life when the smartest move a homeowner can make is simple: get a professional set of eyes on it.
This isn't about routine seasonal upkeep. It's about the specific situations where an inspection protects your money, your warranty, or your home sale. Here are the five moments that call for one, and exactly what happens when the pros show up.
The five moments you actually need a solar inspection
1. You're buying (or selling) a home with solar. A solar system is a major asset that transfers with the house, and neither side should guess at its condition. Buyers want proof the system produces what the listing promised. Sellers want documentation that heads off last-minute negotiation drama. If you've just closed on a house with panels already up top, our guide to buying a home with existing solar covers the full checklist, and an inspection is at the heart of it.
2. A storm just rolled through. New Jersey summers throw wind, hail, and falling limbs at your roof. Damage isn't always visible from the driveway, and some of it (a hairline crack, a lifted attachment point) gets worse quietly. An inspection gives you the documented assessment an insurance adjuster will ask for. More on what storms do to panels in our storm damage guide.
3. A warranty deadline is approaching. Product and workmanship warranties have expiration dates. Finding a defect in year 9 of a 10-year warranty is a claim; finding it in year 11 is a bill. If your system is closing in on a warranty milestone, an inspection before the clock runs out can be worth thousands. (Not sure which warranty covers what? We broke it down in Solar Panel Warranties Explained.)
4. Your installer is gone. If the company that installed your system has closed its doors, nobody is watching it anymore. An inspection establishes the true condition of an orphaned system and gives its new caretaker a baseline to work from.
5. Something feels off. Your monitoring app has gone dark, your electric bill has crept up, or production just doesn't look like last summer. Trust that instinct. Small electrical issues rarely fix themselves.
What a professional inspection actually covers
A real inspection goes far beyond a glance at the roof. Here's what a thorough diagnostic visit looks like:
- Physical inspection up top. Panel condition, racking and attachment points, and the roof penetrations and flashing around them. This is where storm damage and slow-developing mounting issues get caught.
- Electrical testing. Wiring, connections, and module-level output, tested with tools like a multimeter rather than eyeballed. This is the part of "how to test solar panels" that genuinely requires a pro: rooftop DC wiring carries serious voltage and is not a DIY project.
- Thermal scanning. Thermal sensing reveals hot spots and failing cells that look perfectly normal to the naked eye.
- Inverter health check. The inverter is the hardest-working component in the system and the most common failure point. Error codes, output, and overall condition all get reviewed.
- Monitoring access. If your monitoring app was never set up, or stopped reporting years ago, an inspection is the natural time to get it connected and confirming production again.
At Solar Me, a diagnostic visit ends with a written findings report: what's working, what's failing, and what needs attention, in plain language. If repairs are needed, you get scope and pricing spelled out before anything happens, and the job finishes with verification that the system is producing what it should.
What you can check yourself first
Before booking anything, a few homeowner-level checks are fair game:
- Open your monitoring app. Is the system reporting? Is today's production roughly in line with the same month last year?
- Check the breaker. A tripped solar breaker is an occasional, easily fixed culprit.
- Look from the ground. Obvious debris, visible damage, or a new source of shade are all worth noting.
If any of those raise a flag, or you simply can't tell, that's the line where a professional takes over. What you shouldn't do is get on the roof or open electrical equipment. The savings from a DIY inspection evaporate quickly next to an electrical injury or a cracked panel.
Frequently asked questions
What is included in a solar panel inspection?A thorough inspection covers the panels, racking, and roof attachments, electrical wiring and connections, module-level output testing, thermal scanning for hot spots, inverter health, and monitoring setup, followed by a written report of findings.
How do I test if my solar panels are working?Start with your monitoring app and compare production against the same period last year. For anything deeper, module-level electrical testing requires professional equipment and safety training.
How often should solar panels be inspected?There's no fixed schedule for a healthy system, but the trigger moments matter: buying or selling the home, after a major storm, before a warranty expires, when an installer goes out of business, or whenever production drops noticeably.
Should I get a solar inspection before buying a house with panels?Yes. You're inheriting a system worth tens of thousands of dollars, and an inspection tells you its real condition, its remaining warranty coverage, and whether it's producing as promised before you close.
Can a solar inspection help with an insurance claim?It's often the key piece. A professional damage assessment with documented findings gives your adjuster exactly what they need to process a storm-related claim.
Get real answers about your system
Whether you're closing on a house with panels, staring at a dark monitoring app, or just want the truth about how your system is holding up, a professional inspection replaces guesswork with a written answer. Schedule a diagnostic visit with Solar Me and know exactly where your solar stands.
