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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.

*The HomeAdvisor 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.

Last update on May 28, 2025

Find Radon detection and reduction specialists in Greenwood

Avatar for Lawson Home Services, LLC
Lawson Home Services, LLC
4.4(
38
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenwood, DE and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"It was a system that was needed to reduce radon in our basement"
Insulated Storage Deck
Insulated Storage deck with sturdy insulation retention dam around the perimeter.
Attic insulated to R60 TruSoft Cellulose
Chimney properly air sealed and wrapped with rockwool
Additional Photos

+2

Response rate100%
2 neighbors recently requested a quote
Recommended by85%of homeowners
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Avatar for In and Out Home Inspections, LLC
In and Out Home Inspections, LLC
4.8(
90
)
Radon Gas - Testing

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
44 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.4(
24
)
Radon Gas - Abatement

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

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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.

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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