Do I Really Need To Test For Radon If I Don’t Have A Basement?
Sean Curley • November 29, 2025
The Answer May Surprise You
The short, clear answer that everyone in the know understands: YES — absolutely!
Here in Anchorage, Alaska, over 80% of the homes we test that come with back with high levels of radon (10–50+ pCi/L) are slab-on-grade, crawlspace, or post-and-pad homes with no basement at all.
At Anchorage Radon Testing and Mitigation, we know that radon gas doesn’t need a basement to get into your house. It’s pulled in through:
- Cracks in the slab
- Gaps around pipes
- Sump pits
- Crawlspace vents & dirt floors
- Block walls or post-and-pad foundations
The cities of Anchorage & Eagle River sit on some of the most radon-rich soil in the United States. The only way to know what your radon level is is to test — whether you have a basement or not.
Call Anchorage Radon Testing and Mitigation for your radon test today and we can plan a mitigation strategy.
Alaska’s Geology Is the Cause of Radon Levels
Do Radon Mitigation Systems Work?
Radon Remediation Methods
What to Know About Radon and Tests For It
The Natural Radio Active Decay in Soil
And What Does It Do To You?
Local Meteorological Conditions Can Influence Indoor Radon Levels
Is Radon A Problem Where You Live?
Will Radon Mitigation Damage Your Foundation?
Do Radon Levels Change in the Winter?