SoCal Mold Guide

A resource for Southern California homes

Mold grows quietly. The damage it does doesn't.

Southern California's mix of coastal humidity, older housing stock, and winter storm intrusion makes indoor mold a routine problem — not a rare one. This guide explains what mold actually is, when it's a health concern, and how to tell a real problem from a scare tactic.

Start with mold basics  ›

Why this matters here

Housing stock
Much of LA & SoCal housing predates modern moisture barriers
Climate pattern
Dry summers, then sudden wet winters — a classic mold trigger
Disclosure law
California requires mold disclosure in most home sales

Where to start

BasicsWhat mold is, where it grows, and what conditions cause it HealthWho's actually at risk, and what symptoms mean ProcessThe difference between testing and remediation, and why order matters LawWhat California requires landlords and sellers to disclose FAQBleach, black mold, insurance, and other common questions

Testing and remediation are different jobs with different tools — see how they fit together, and who serves the SoCal area for each.