Who Performs Solar Inspections?
If you are asking who performs solar inspections, the short answer is this: solar inspections are typically carried out by qualified solar inspectors, licensed electricians, NABCEP-certified professionals, engineering firms, third-party inspection companies, and local authorities such as building or electrical inspectors. The right person depends on the type of inspection you need, when it happens in the project, and whether the goal is code compliance, quality control, performance verification, or insurance validation.
That matters because not every inspection is the same. A post-installation sign-off is different from a quality inspection for investors, and both are different from a diagnostic visit when you suspect your solar panels are not working properly. If you want a reliable answer to who inspects solar panels after installation or who can check your solar panels are working, you need to match the inspector to the purpose.
Who can perform a solar inspection?
Several types of professionals may perform a solar inspection, depending on the stage and scope of the job:
- Licensed electricians - often inspect wiring, grounding, disconnects, and electrical safety.
- NABCEP-certified solar professionals - commonly used for residential and commercial system inspections, troubleshooting, and quality checks.
- Local building or electrical inspectors - usually handle permit-related approval after installation.
- Independent third-party solar inspectors - provide objective inspections for buyers, owners, lenders, insurers, and investors.
- Engineering or technical consulting firms - more common for larger commercial or utility-scale projects.
- Manufacturer representatives or authorized technicians - may inspect equipment for warranty or product-specific issues.
In practice, the answer to who performs solar inspections is usually not one fixed role. A residential system may be reviewed first by the installer, then by a local inspector for permit closure, and later by an independent solar expert if the homeowner wants a quality, safety, or performance assessment.
What qualifications should a solar inspector have?
The most reliable solar inspectors combine electrical knowledge, solar-specific experience, and familiarity with codes and test methods. If you are hiring someone independently, look for qualifications that match the system and the inspection goal.
Core qualifications to look for
- Electrical background - especially for inspections involving wiring, inverters, disconnects, and safety risks.
- Solar-specific certification - NABCEP is one of the best-known credentials in the US solar industry.
- Code knowledge - including NEC requirements, local building rules, and utility interconnection standards where applicable.
- Hands-on field experience - experience with rooftop, ground-mount, battery-connected, and retrofitted systems improves inspection quality.
- Testing equipment knowledge - such as multimeters, clamp meters, thermal cameras, irradiance meters, and monitoring platforms.
- Safety training - especially fall protection, electrical safety, and lockout procedures.
Why certification alone is not enough
A certificate is helpful, but it should not be the only criterion. A strong inspector also knows how systems fail in the real world: loose connectors, poor roof penetrations, labeling mistakes, incorrect string sizing, underperforming modules, inverter faults, and monitoring gaps. That practical experience is often what turns a basic check into a useful inspection.
Who inspects solar panels after installation?
After installation, solar panels are often inspected by the local authority having jurisdiction, usually a building inspector or electrical inspector, to confirm the system meets permit and code requirements. For details on what local AHJs look for, see AHJ requirements for solar site inspections. In many cases, the utility may also require documentation or verification before permission to operate is granted.
That said, a code inspection is not the same as a full quality or performance review. A local inspector may verify compliance with permit requirements, but they usually do not perform a deep technical audit of long-term output, workmanship quality, or future maintenance risk. If you want a broader answer to who inspects solar panels after installation, it can include:
- Local building inspectors
- Electrical inspectors
- Utility or interconnection reviewers
- Independent third-party solar inspectors
- Solar service technicians for post-install diagnostics
If you recently bought a property with solar or suspect installation issues, an independent inspection is often the better choice because it focuses on the actual condition and performance of the system, not just permit sign-off.
When do you need a solar inspection?
Solar inspections happen at different points for different reasons. Knowing the timing helps you hire the right person. For a high-level view of when inspections occur and who conducts them, see the solar permitting and inspection timeline (US).
Before installation
Pre-installation reviews are more common in larger projects, but they can also matter for residential jobs with complex roofs or battery integration. At this stage, inspections may focus on site conditions, structural considerations, equipment suitability, and design alignment. For a broader overview of this stage, see our solar site inspections guide.
During installation
Inspections during installation help catch workmanship issues before the system is energized. This can include mounting, wiring routes, labeling, grounding, and roof attachment details.
After installation and before operation
This is when code and permit inspections usually happen. The goal is to confirm the system is installed safely and in line with approved plans and electrical requirements. To understand where AHJ and utility checks fit in the sequence, review the correct order of solar installation and inspection steps.
During ownership or maintenance
You may need an inspection later if production drops, monitoring shows faults, components age, the roof is replaced, or you are preparing to sell the property. This is also the stage where many people ask who can I get to check my solar panels are working. The answer is usually an experienced solar technician, independent inspector, or licensed electrician with solar expertise.
What does a solar inspection usually include?
A proper solar inspection can vary by provider, but most thorough inspections review the system from four angles: safety, workmanship, performance, and documentation. For a detailed list of items inspectors review, see our solar site inspection checklist.
Typical inspection checklist
- Panels and modules - visible damage, cracking, hotspots, shading analysis during solar inspections, soiling, and attachment condition
- Mounting system - rail security, hardware condition, alignment, corrosion, and roof penetrations
- Wiring and connections - cable management, connector compatibility, grounding, labeling, and signs of overheating
- Inverter and balance of system - inverter status, disconnects, breakers, combiner boxes, and surge protection
- Performance indicators - production levels, monitoring data, string behavior, and system availability
- Safety risks - code concerns, fire hazards, water ingress risks, and exposed conductors
- Documentation - plans, permits, equipment list, warranties, and commissioning records
Some inspectors also use thermal imaging, IV curve testing, drone imagery, or monitoring analysis when the inspection requires deeper performance validation.
What is the difference between a code inspection and a third-party solar inspection?
This is one of the most important distinctions to understand.
| Inspection type | Usually performed by | Main purpose |
|---|---|---|
| Code or permit inspection | Local building or electrical inspector | Verify compliance with permit, code, and safety requirements |
| Third-party quality inspection | Independent solar inspector or engineering firm | Assess workmanship, condition, safety, and technical quality |
| Performance inspection | Solar technician or specialist inspector | Check output, faults, monitoring data, and underperformance |
| Warranty-related inspection | Manufacturer or authorized service provider | Confirm product issue and warranty eligibility |
If your goal is confidence in system quality, not just permit approval, a third-party inspection is usually more useful. It offers a more objective view of how well the system was designed, installed, and is currently operating.
How do you choose the right solar inspection service?
If you are comparing providers, focus on fit rather than broad claims. The best inspection service is the one that matches your system, your reason for inspection, and the level of reporting you need.
What to check before hiring
- Relevant experience - residential, commercial, battery storage, reroof projects, or real estate transactions
- Credentials - licensing, NABCEP certification, and safety training
- Inspection methods - visual review, electrical testing, thermal imaging, monitoring analysis, drone inspection if useful
- Reporting quality - clear findings, photos, risk level, and recommended next steps
- Independence - especially important if you want an unbiased opinion for a purchase, claim, or dispute
- Turnaround time - useful when a property sale or insurance process is time-sensitive
A good report should tell you what is working, what is not, what the safety concerns are, and what action should happen next. If the service only provides a quick pass or vague approval, it may not answer the questions you actually have.
Who can check if your solar panels are working properly?
If your main concern is performance, not permits, you typically need a solar technician, service electrician, or independent solar inspector with diagnostic experience. This is the practical answer to the common question: who can I get to check my solar panels are working?
They can review:
- Actual production versus expected production
- Inverter alerts and monitoring platform data
- Shading changes over time
- String or module underperformance
- Connection faults and intermittent electrical issues
- Battery and inverter communication problems, if storage is installed
If the system appears to be online but bills are unexpectedly high, the problem may not be visible without testing. That is why a performance-focused inspection is different from a simple visual check.
What is the biggest red flag in a solar inspection?
There is no single red flag in every situation, but the most serious findings are usually the ones that combine safety risk with hidden cost. Common examples include burned connectors, water intrusion around roof penetrations, poor grounding, incompatible components, loose wiring, and signs that the system was installed outside code or manufacturer instructions.
For buyers, another major red flag is missing documentation. If no one can produce permits, equipment records, warranty details, or monitoring history, it becomes much harder to confirm whether the system is safe, compliant, and worth the expected value.
Does the 33% rule in solar panels matter during an inspection?
The phrase "33% rule" can mean different things depending on context, so it is not a universal inspection rule by itself. Sometimes people use it loosely when discussing oversizing, production loss, or system design tolerances. During a real inspection, what matters more is whether the system was designed and installed within code, manufacturer limits, and expected performance assumptions.
If someone mentions the 33% rule while evaluating your system, ask what standard or design principle they actually mean. A qualified inspector should be able to explain the exact requirement, not rely on shorthand terms.
Why independent solar inspections matter for property owners and buyers
Independent inspections are especially useful when ownership, liability, or long-term performance matters. If you are buying a home with solar, taking over an existing system, or trying to verify an installer's work, an independent inspection gives you a clearer picture than sales language or permit closure alone.
It can help you answer practical questions such as:
- Is the system safe to operate?
- Is it installed correctly?
- Is it producing as expected?
- Are there hidden repair costs?
- Is the documentation complete?
- Will future maintenance be straightforward or expensive?
That clarity is valuable whether you own one residential rooftop system or manage a portfolio of solar assets.
FAQ
Do solar installers perform inspections themselves?
Yes, installers often perform internal checks during and after installation. However, those are not always independent inspections. If you want an objective assessment, a third-party inspector is usually the better option.
Can a regular electrician inspect a solar system?
A licensed electrician can inspect many electrical aspects of a solar system, especially wiring and safety issues. For full system quality or performance reviews, solar-specific experience is still important.
Is a local building inspection enough for a solar system?
Not always. A local inspection usually focuses on permit and code compliance. It may not cover detailed workmanship quality, long-term reliability, or actual production performance.
Should you get a solar inspection before buying a house with panels?
Yes. If a property includes solar, an independent inspection can reveal whether the system is safe, functional, properly documented, and likely to require repairs. If the inspection also needs pre-install context, it can help to understand the solar site inspection process, step by step.
How often should solar panels be inspected?
There is no single rule for every system, but inspections are commonly recommended when performance drops, before or after roof work, during a property sale, after severe weather, or as part of periodic maintenance planning. In some cases, that also includes reviewing roof structural checks before solar installation if the roof condition is a concern.
What should you receive after a solar inspection?
You should receive a written report that explains findings, photos, observed defects, safety concerns, and recommended next steps. A stronger report will also distinguish between urgent issues and lower-priority items.
