McCampbell Analytical, Inc. (MAI)

McCampbell Analytical, Inc. (MAI) carries a strong 4.7-star rating across 203 Google reviews, which is meaningful given Pittsburg's climate challenges. With 67% average relative humidity and 16 inches of annual rainfall, mold risk is real, especially in homes built around 1983 (the local median age). When moisture accumulates in older houses, a professional inspection becomes essential. You can expect a standalone mold inspection in this area to cost $200-$600, and MAI's solid reputation suggests homeowners have found value in their work.

Before hiring, verify that MAI holds a valid Contractor's State License Board (CSLB) license and carries appropriate insurance. California doesn't require a specific state license for mold remediation, but any contractor performing remediation work must have an active CSLB license and ideally IICRC certification. One important note: MAI is listed as a mold inspector, so if they also perform remediation work, that creates a potential conflict of interest under industry standards. It's worth asking whether they inspect only or do both, and if they do both, consider getting a second opinion before moving forward with remediation.