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Q: How often should radon levels be tested to ensure safety?

• <div><p>Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.</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>

Q: How long does the radon abatement process usually take?

• <div><p>Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.</p></div>

Q: Can you remediate radon yourself?

• <div><p>There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.</p></div>

Q: Can I use my sump pit for radon mitigation?

• <div><p>If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.</p></div>

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

*The Angi rating for Radon Detection And Reduction companies in Washington, VA 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, VA 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 November 13, 2025

Reviewed in November 2025
The options for the work needed don't include "Repeated Housecleaning", but that's what Gilma does for us, and she is awesome! The place always feels great when she is done. We've been with Gilma for a few years now, and I hope that we can stay on her list of clients. She's very reliable and...
Gilma's Cleaning LLC
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Reviewed in July 2025
This job was huge,and in very hot weather the work done was.miraculous! There was much more than tree trimming needing to be done,and this group is patient, professional,and genuinely caring about making positive differences. I highly recommend this business,and continue to be grateful to be...
FLORES CONSTRUCTION TREE SERVICE LLC
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Reviewed in September 2024
Forestry mulching job that was a godsend. I had a section out front of my house that was full of scrub brush, small trees and just a mess. Trying to do it by hand and with a tractor was going nowhere. Ryan and his team gave me a very reasonable bid and came in within a couple days and cleared...
Outdoor Organics LLC
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Reviewed in September 2023
Rose Roofing did a roof inspection for us to check for damage after a storm. They detected damage and worked with our insurance to get the roof replaced at an outstanding cost. Throughout the whole process they were clear, concise and upfront about what to expect and when to expect it. The...
Rose Roofing and Restoration, LLC
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Reviewed in August 2023
Jorge Silva is an excellent technician and made sure I understood the issues and what it would take to repair them! I highly recommend the company and him especially to handle your HVAC needs!
ARS of Virginia
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Reviewed in May 2023
Fox Trail Electric provided us with excellent professional diagnostics and service. Our pool pump disconnect blew when we opened our pool, and we contacted three companies for repair estimates. Not only was Fox Trail the best estimate, Brendan and Moses very quickly found the source of the...
Fox Trail Electric LLC
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Reviewed in March 2022
Great!! Very friendly and professional and performed exactly what they had contracted to do. Would gladly use them again. Bea Logsdon
Stefan's Tree and Yard Service
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Reviewed in February 2022
The technician was very knowledgeable and helpful.
Michael & Son Services (NOVA)
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Reviewed in January 2022
Gonzales Tree Services was one of three companies I contacted. They are insured and bonded and even showed proof of coverage. They did good work, showed up on time, and communicated very well. If I have any future tree trimming needs, I will call them again.
Gonzalez Landscaping & Tree Care
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Reviewed in December 2021
Michael did an amazing job, putting in extra effort to make sure everything came out perfect. Radon measured went from in the 8s down to 0.6. Iâ m very happy!
A Breath Of Fresh Air
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Find Radon detection and reduction specialists in Washington

TOPS RADON

5.0(

)

Serving Washington, VA and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"Our radon system had become inoperable. Tops was able to repair the system and getting everything up and running quickly and efficiently. I highly recommend Tops!"

Response time2 days

1 neighbors recently requested a quote

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Clatterbuck Home Inspections, LLC

New to Angi

Serving Washington, VA and surrounding areas

Approved

In business since 2008

Free estimates

Credit card accepted

Home Inspections

Response time10 hrs

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Valley Radon Solutions, LLC

5.0(

)

Serving Washington, VA and surrounding areas

In business since 2021

Free estimates

"He did a really good job! I would not hesitate to recommend him to anyone. He is also kind and does a good work."

Recommended by100%of homeowners

Serving Washington, VA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"I am very pleased with the quality work and how quickly my water damage issue resolved. They were extremely professional and knowledgeable and did a great job at keeping me up to date on the progress of the cleanup."

Drying bathroom wood subfloor from kitchen using indirect control heat, controlled by thermostat we set in place

+57

Recommended by88%of homeowners

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All States Air Duct Pro

3.1(

236

)

Serving Washington, VA 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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CIAenterprize.com - 3 Photos - Home Inspector - 1080 carefree lane, Boyce, VA 22620

4.5(

)

Serving Washington, VA and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"The company personnel conducted themselves in a very professional manner and provided detail explanations to questions I had. Would definitely use them again for my next project."

Recommended by100%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.

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

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

The Washington, VA 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.

See all articles

Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
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•
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How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
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•
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How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
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•
May 3, 2026May 3, 2026
How to Test for Radon in Your Home
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.
Dan Simms
•
Apr 5, 2026Apr 5, 2026
5 Questions to Ask About Radon Gas Abatement
Radon is a radioactive gas that can enter a home from the ground. Prepare yourself for mitigation by answering these questions before hiring a pro.
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•
Apr 9, 2026Apr 9, 2026
Radon Mitigation System Diagram: Understanding How It Works
You need to protect your home from radon, but what does a radon mitigation system look like? Check out this radon mitigation system diagram to learn how it works.