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Top-Rated Radon detection and reduction specialists in Fenwick Island - Updated Nov 2026

Avatar for In and Out Home Inspections, LLC
In and Out Home Inspections, LLC
4.8(
90
)
Radon Gas - Testing

Serving Fenwick Island, DE and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Bill from In & Out home inspection is a gem. He is very knowledgeable in his craft and made himself available for whenever we called with questions even on Sunday."
Response time7 hrs
43 neighbors recently requested a quote
Recommended by94%of homeowners
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 Fenwick Island, 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
Avatar for Mid Atlantic
Mid Atlantic
4.9(
18
)
Radon Gas - Testing

Serving Fenwick Island, 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
Radon Detection and Reduction FAQs, answered by experts

Installation typically takes 1-2 days, depending on the system and property layout.

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

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

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.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

The Fenwick Island, 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.