Guaranteed Property and Mold Inspection

Guaranteed Property and Mold Inspection carries a 4.9-star rating across 142 Google reviews, which matters in Costa Mesa where the climate works against you. With 77% average humidity and 14 inches of annual rainfall, combined with most homes built around 1971, mold risk is real. That strong rating suggests the company understands what older Costa Mesa homes face and delivers results homeowners trust enough to review positively.

Before hiring any mold remediation contractor in California, verify they hold a valid Contractor's State License Board (CSLB) license, since the state doesn't issue a specific mold remediation license. You'll also want to confirm they carry proper insurance and hold IICRC certification - these credentials protect you and signal professionalism. Typical remediation projects in your area run $1,950 to $5,800, so get multiple quotes and always ask to see proof of licensing and insurance before signing anything.