Solar inspection providers in Washington

Most Washington solar inspectors quote $199–$349 for a standard visual and electrical check, or $299–$549 for a full thermal imaging audit on a residential 5–10 kW system. Commercial inspections are priced per kW, typically $0.04–$0.08/W.

PanelAudit currently lists 4 vetted solar inspection providers serving Washington, including drone thermography specialists, IEC 62446 auditors, and full-service O&M firms. We re-verify certifications and service areas quarterly.

Look for NABCEP PV Installation Professional or PV System Inspector credentials, ITC Level I or II thermography (for thermal imaging), and FAA Part 107 (for drone-based inspections). IEC 62446-1 familiarity is a plus for commercial sites.

For residential and most C&I systems in Washington, drone-based FLIR thermography covers a 10 kW array in under 20 minutes and captures every panel from a consistent altitude. Handheld FLIR is still better for inverter and combiner-box inspection, so the best providers combine both.

Typical lead time in Washington is 5–14 days for residential and 2–4 weeks for commercial. Drone-only audits often book faster. Submit through the form below and we'll route your request to providers with current availability in your ZIP.

Yes — virtually every major panel and inverter warranty requires third-party diagnostic evidence (thermal images, IV-curve traces, electroluminescence, or performance reports) before approving a claim. A $300–$500 audit often unlocks $2,000–$8,000 in covered repairs or replacements.