Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Washington, VA

Q: Is radon a serious problem?

• <div><p>Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).</p></div>

Q: Is radon mitigation worth it?

• <div><p>Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home&rsquo;s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.</p></div>

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: How long does radon mitigation take?

• <div><p>Installation typically takes 1-2 days, depending on the system and property layout.</p></div>

Q: What if radon is still high after mitigation?

• <div><p>You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.</p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Washington, VA?

Select your specific project to find the pro for you.

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
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
Reviewed in February 2022
The technician was very knowledgeable and helpful.
Michael & Son Services (NOVA)
Request a quote
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
Request a quote
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
Request a quote

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

Request Quote

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

Request Quote

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

Request Quote

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

Request Quote

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

Request Quote

Radon Detection and Reduction questions, answered by experts

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

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.

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

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

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.
Mitchell Grant
•
Mar 18, 2026Mar 18, 2026
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.
Alison Kasch
•
Apr 6, 2026Apr 6, 2026
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.
Kate Fann
•
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.
Amy Freeman
•
Apr 9, 2026Apr 9, 2026
What You Need to Know Before Refinishing a Basement
Thinking about refinishing your basement? A bit of planning can go a long way. Here's everything you need to know to get started.
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.