Healthy Home Audit, home

Topic · Moisture

Start with moisture and the source

Start with what you can see: an active leak, recurring condensation, staining or visible growth. Record the location and follow up on the source.
Light condensation on the lower part of a bedroom window pane.

Choose a task

  • 01Guide

    Moisture observations

    Record the location and type of a visible issue, then follow up on the source and the responsible person.

  • 02Guide

    Mold-testing limits

    A test is not automatically the first useful step when visible mold is present.

  • 03Checklist

    Bathroom checklist

    Condensation, staining, leaks, ventilation controls and what to report if you rent.

  • 04Checklist

    Basement checklist

    Water entry, dampness, equipment access and prior radon-test information.

Free resource

Printable home checklist

Three pages: your water source and air task, the four rooms with observation lines, and a dated task list.

Get the free checklist

The checklist organizes your next action and does not determine the extent of hidden damage.

Sources and review

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  1. EPA: mold testing or sampling, US Environmental Protection Agency (accessed October 13, 2026) — Visible mold generally does not require sampling; there are no federal airborne mold limits.
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