Path-Q Solar

How can I decide whether a second site visit is necessary after a quote changes substantially?

Answer

Request a second site visit when the revised quote changes the array location, system size, electrical design, mounting method, roof assumptions, or access requirements in a way that was not verified during the first visit. A written explanation may be enough for minor, well-documented changes.

Key points

  • Compare the original and revised layouts, equipment, roof areas, wiring paths, and exclusions.
  • Ask which new facts caused the change and whether they were observed, measured, or merely assumed.
  • Require the revised proposal to identify all changed assumptions and resulting costs or production effects.

What it depends on

  • Magnitude and type of design change
  • Quality of the original site documentation
  • Whether the changed conditions affect safety, feasibility, or price

Risks and trade-offs

  • Skipping a visit can leave the revised design based on outdated measurements.
  • A second visit costs time or money but may prevent installation-day surprises.
  • Repeated redesigns may indicate weak initial assessment or unresolved site constraints.

Information you may need

  • Original and revised plans and equipment lists
  • The reason for each material change
  • Updated roof, electrical, access, and production assumptions

Your next step

What to do next

Ask the installer to mark every material revision; request a second visit if any changed item affects physical feasibility or cannot be verified from existing records.

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