Request by Concerned Homeowner [Non-Real Estate Transaction]
Real Estate Transaction [Time Sensitive]
Retest – A Short-term or Long-term measurement which replaces a previously invalidated measurement. A Retest is also recommended every 5 years or when significant have been made to the home such as:
Structural or HVAC changes, such as additions to the home
Significant alteration to ventilation, changes to mechanical systems, or weatherization of building
Previously untested or unoccupied areas in ground contact become occupied.
Installed mitigation system is altered or repaired
Occurrence of earthquakes, construction blasting, or formation of sink holes nearby
Diagnostic – Samplings of radon decay products obtained by a mitigation contractor to determine where or how to best mitigate a problem or by a researcher for study purposes.
Post-mitigation – Short term measurements conducted by a measurement professional in order to determine the effectiveness of mitigation systems.
New Construction – Newly constructed homes should be tested only after all work is complete and closed-building conditions can be maintained.