Rapid One

Before you call anyone about mold in Arlington Heights, know what to look for. First, verify they hold IICRC S520 certification and general liability insurance - these aren't required by Illinois law, but they're what separates reputable contractors from the rest. Second, understand that inspectors who also do the remediation work have a financial incentive to find problems, which creates a conflict of interest. Third, get a sense of fair pricing - standalone mold inspections in this region typically cost between $200 and $600. Given that many Arlington Heights homes were built in 1973 and the area gets plenty of moisture (70% humidity and 38 inches of rain yearly), mold inspections are worth taking seriously.

Rapid One comes with strong reviews and serves the Arlington Heights area. Before you hire them or anyone else, ask whether they only inspect or if they also perform remediation work. If they do both, consider getting a separate inspector to avoid any conflict of interest. Check their credentials independently rather than taking their word for it, and make sure you understand what the inspection includes and what happens next.