Serving Rockford, IL and surrounding Winnebago County towns
Radon Testing Rockford

Rockford, Illinois

New Construction Radon Testing in Rockford, IL

Radon testing for newly built homes in the Rockford area. New construction is not automatically low-radon, and testing after the home is finished and closed up confirms whether radon-resistant construction techniques actually worked.

New construction radon testing checks a newly built home after it is fully enclosed, since radon comes from the ground the house sits on rather than the age of the structure. Many new homes include passive radon-resistant features during construction, and testing after move-in confirms whether those features are keeping levels below the EPA action level on their own or need an active fan added.

A passive system that isn't working is invisible without a test. The pipe is there, the gas isn't necessarily being pulled out effectively, and the only way to know is to check.

What's included

  • Testing after the home is fully enclosed and closed up
  • Confirmation of whether passive radon-resistant construction is working
  • Guidance on activating a passive system with a fan if levels are borderline
  • Same short-term or long-term testing options as an existing home

Why new doesn't mean low-radon

Radon enters through the foundation from the soil beneath it, which means it has nothing to do with how new the house is. A newly poured slab over high-radon soil is exactly as exposed as a 60-year-old foundation over the same soil.

Passive vs. active radon-resistant construction

Many new builds include a passive radon-resistant rough-in: a vent pipe run from beneath the slab up through the roof, with no fan. This can reduce radon levels on its own, but not always enough. Testing after the home is finished tells you whether the passive system is sufficient or whether a fan needs to be added to make it active.

Common questions

Before you book

When should a new home be tested?

Testing after the home is fully enclosed, with doors and windows able to stay closed for the test period, gives an accurate read of the finished structure.

What if the builder already installed a radon rough-in?

A rough-in is a good sign, but it only becomes an active system once a fan is added. Testing tells you whether the passive version alone is keeping levels below the action level.

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