State Overview
DE
Select your county below to view itemized mitigation estimates, local labor rates, and EPA zone risk factors.
DE Radon Levels by County
View EPA zone data and risk classifications
How to Test for Radon
Complete homeowner's testing guide
Why Does Cost Vary in DE?
Cost estimates across DE range due to local labor market conditions and specific EPA zone profiles. Foundation types (basement vs slab) also heavily impact material costs and permit requirements. Choose your specific county to narrow down your estimate bounds.