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*The Angi rating for Radon Detection And Reduction companies in Greenwood, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

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Last update on May 28, 2025

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Avatar for In and Out Home Inspections, LLC
In and Out Home Inspections, LLC
4.8(
90
)

Serving Greenwood, DE and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Bill explained the whole process of the inspections, answered all my questions and was very through. I would definitely recommend him and his company!"
Response time7 hrs
58 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.4(
24
)

Serving Greenwood, DE and surrounding areas

In business since 2002

Free estimates

"The Technician Tom was very educated and took time to answer my questions to which I all ready new the answers to. This was my test to his knowledge before we got started on the job. H was very good explaining the operation of the system to us, which helped my wife hear it from a different person other then myself. Workmanship is very neat and clean and a very professional job. I hail form a service background of 35 years and can say Tom was an excellent customer service person."
Recommended by91%of homeowners
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Radon Detection and Reduction questions, answered by experts

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

The Greenwood, DE homeowners’ guide to radon detection and reduction services

From average costs to expert advice, get all the answers you need to get your job done.

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