After getting my test results for a five day test, the result of 740 indicated I might have a problem even though 400 is the cut off. They said that several variable might have caused a false result so I should retest for a longer term. Why not do the longer term initially?
Overall Experience
Quality
Price
Convenience
Overall Experience
Quality
Price
Convenience
Sub-slab radon mitigation system installation in unfinished basement. Post mitigation test results = 1.1pci/l
Sub-slab radon mitigation system installation in unfinished basement Post mitigation test results = 3.5 pci/l
Sub-soil radon mitigation system installation in unfinished basement. Post mitigation test results = 3.6 pci/l
