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Q: What is the biggest source of radon?

• <div><p>The soil beneath your house is most likely what&rsquo;s causing an increased level of radon. This is because soil holds radioactivity for a long time and it&rsquo;s also what most buildings are built on. Another common source of radon is water from a source that hasn&rsquo;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.</p></div>

Q: What would cause radon in a house?

• <div><p>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.</p></div>

Q: What is considered a safe or dangerous level of radon?

• <div><p>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.</p></div>

Q: Do radon mitigation systems come with warranties?

• <div><p>Yes, many systems include warranties for performance. Confirm terms with your installer.</p></div>

Q: What steps should be taken if high radon levels are detected?

• <div><p>If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Washington, NC

*The Angi rating for Radon Detection And Reduction companies in Washington, NC 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 Washington, NC 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 March 11, 2025

Reviewed in March 2025
Alex and crew did a great job. Responded promptly to my initial call and came out for an estimate the next day. Reported on time for the job and did a nice job of removing the dead tree, grinding down the stump, and cleaning up the area. Highly recommended.
L&L Tree Service
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Reviewed in January 2025
They were quick to respond and fixed my AC and Duct work that day. They were very reliable and affordable service. Explained my service issues in detail with professionalism. I will use them again and refer them to anyone. Highly recommended.
NXT Air Solutions LLC
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Reviewed in October 2024
Aaronâ s attention to detail and thoroughness were evident throughout the entire process. He not addressed the visible damage but also took the time to identify and mitigate the future issues. His communication was excellent, keeping me informed at every step and ensuring I understood the work...
Hightide Water Damage Restoration LLC
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Reviewed in August 2024
Hunter Medford TJ Ryan John and Tyler Great to have Hunter and TJ to work on our bathrooms upgrades. They were friendly and quick to listen and answer our questions. Job well done.
West Shore Home Greenville NC
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Reviewed in February 2024
I have used the big corporate turf companies and treatment facilities with most unsatisfactory results. I have been using Joe Lawrence for the past five or so years. I had Joe sod my front yard. He treated and nurtured it to what is the best looking lawn in my neighborhood. Professional...
Lawrence Landscapes and Lawn Maintenance
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Reviewed in October 2023
Great experience working with Respess Brothers! Charly and his team did an excellent job removing 16 large trees from our yard! They were quick to respond to my request for a quote. They were friendly, professional, and reasonable in price. The team arrived as promised and did a great job...
Respess Brothers Tree Service
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Reviewed in August 2023
True Clarity Cleaning did an amazing job. They were timely, provided feedback and recommendations for maintenance after completing the power washing, and had amazing customer service.
True Clarity Cleaning LLC
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Reviewed in December 2022
"We hired SDR for a mold remediation project in a basement of one of our properties, and we are extremely happy with the results and overall experience. They were very professional, showed up on time and I liked the fact they sealed our main floor completely and meticulously, so it was...
Superior Damage Restoration, LLC
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Reviewed in October 2022
I am so glad I found Davis RPHI. I could not be happier with them and the outcome. They kept in contact and were actually early on the day of the project. They went above and beyond the call of duty. I will DEFINITELY be hiring them again.
Davis RPHI
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Reviewed in August 2022
ROR Construction LLC arrived on time and completed the rails on my front steps with great professionalism and the price was reasonable.
R.O.R. Construction
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Find Radon detection and reduction specialists in Washington

The Inspection Guys

5.0(

)

Serving Washington, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Professional, personable, and polite. Really knowledgeable and qualified. The Inspection Guys get the job done with a standard of excellence!"

+140

Response time4 hrs

Response rate96%

22 neighbors recently requested a quote

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Elite Home Inspections, LLC

5.0(

)

Serving Washington, NC and surrounding areas

Approved

In business since 2025

Free estimates

Small jobs welcome

"This was a very thorough inspection. I was very impressed by their professionalism and knowledge. They answered all questions. This is a very trustworthy company! I would recommend them to everyone."

6 neighbors recently requested a quote

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East Carolina Restoration Services, LLC

4.9(

)

Serving Washington, NC and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Technicians showed up promptly, evaluated issues and immediately put together a plan and put that plan into action. Clean and professional"

+11

Response time1 day

9 neighbors recently requested a quote

Recommended by100%of homeowners

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M&D Property Solutions

4.5(

)

Serving Washington, NC and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

"M&D Property Solutions did a great job at installing a Radon mitigation system for us. Braden was awesome to work with! All done in one day and completely satisfied with it. I would definitely recommend!"

+10

Response time1 day

1 neighbors recently requested a quote

Recommended by100%of homeowners

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Coastal Inspection Company

5.0(

)

Serving Washington, NC and surrounding areas

In business since 2024

Free estimates

Offers commercial services

"Timely, professional, and friendly. Would highly recommend for any home inspection needs."

Response time5 hrs

3 neighbors recently requested a quote

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All States Air Duct Pro

3.1(

236

)

Serving Washington, NC and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"o.k. Wasn't impressed
"

Recommended by49%of homeowners

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Radon Detection and Reduction questions, answered by experts

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.

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.

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.

Yes, many systems include warranties for performance. Confirm terms with your installer.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

The Washington, NC 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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