Certified Indoor Environmental has an established online presence — certifiedie.com was first registered on February 22, 2017, over 9 years ago.
Websites like this with a 9-year history are a positive indicator of business stability in the Portland area.
How Certified Indoor Environmental compares
4.9 ★
above the 4.9 area avg
9 yrs
online since 2017
30
radon mitigation providers in area · 28 rated 4+★
Other Radon Mitigation in Portland
AccuGuard Environmental4.9Nonprofit Home Inspections5.0Valley Radon LLC5.086 Radon5.0Guided Light Home Inspection, LLC5.0Oregon Healthy Homes LLC.5.0
View all radon mitigation in Portland →