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*The Angi rating for Radon Detection And Reduction companies in Selbyville, 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 Selbyville, 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 June 26, 2025

Find Radon detection and reduction specialists in Selbyville

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

Serving Selbyville, 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%
3 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 Selbyville, DE and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"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
33 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for C.A.R.E. - Property Services, Inc.
C.A.R.E. - Property Services, Inc.
4.4(
10
)
Radon Gas - AbatementRadon Gas - Testing

Serving Selbyville, DE and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Matthew Skrief was very professional. He explained in detail about the air quality tests and reviewed the analysis reports with us. We were very pleased with his help and would not hesitate to hire him again."
Response time10 hrs
Recommended by100%of homeowners
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Avatar for Mid Atlantic
Mid Atlantic
4.9(
18
)
Radon Gas - Testing

Serving Selbyville, DE and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Chris was WONDERFUL! I just purchased a home and wanted to have a mold inspection done for peace of mind. Chris took time to explain the process and put my fears at ease with his vast knowledge. He reviewed the test results with me prior to closing which gave me the peace of mind I needed to confirm I was making a good purchase and great investment. I highly recommend Mid Atlantic Commercial Residential Real Estate Solutions. VERY PROFESSIONAL AND COURTEOUS!!"
Crawl Space
Crawl Space
Crawl Space
Crawl Space
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

Mitigation reduces radon levels, protecting your health and complying with safety standards.

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.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

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

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

The Selbyville, 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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