San Diego solar guides and comparisonsReviewed July 2026
Buying solar

Solar Warranties Explained

Separate equipment, performance, workmanship and roof coverage.

Reviewed July 2026

“25-year warranty” can refer to very different promises. Identify the responsible party for each layer.

  • Product warranty: defects in panels, inverters or batteries.
  • Performance warranty: an expected long-term output level.
  • Workmanship warranty: installation labor and workmanship.
  • Roof-penetration coverage: leaks or damage associated with attachments.

Ask whether labor, shipping, diagnosis and removal are included in a manufacturer claim.

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Sources

Rules, rates, products and programs change. Verify current information with the linked official source and the final written contract.

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