A system is a coordinated assembly
Typical concepts include collection below a slab or membrane, sealed pathways, vent piping, an in-line fan where applicable, a visible performance indicator, safe discharge, and electrical work. The exact combination is provider- and property-dependent.
Before authorizing work
Ask for the credential holder’s identity, proposed scope, applicable standard, electrical responsibility, discharge location, system labeling, warranty terms, and the plan for independent post-work measurement.
After installation
A pressure indicator shows whether pressure is being created; it does not measure indoor radon. Verification requires a radon measurement after the system is operating.
Primary sources
Claims checked August 2, 2026. Guidance can change; confirm the current source before acting.