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  • Verified reviews icon13
    Verified radon detection and reduction services reviews

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

Avatar for Radon Abatement Services
Radon Abatement Services
4.9(
257
)
Radon Gas - Abatement

Serving Ashburn, VA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"I used Radon Abetment Services LLC to install a radon system in my basement. John and his team were excellent and I highly recommend them to anybody with this need. John was able via video over phone identify where the system should go. His team was extremely professional and courteous. The installation took a day and the improvement in radon levels was remarkable. We would absolutely use them again."
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1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Radon Abatement Services, LLC
Radon Abatement Services, LLC
4.6(
135
)
Radon Gas - Abatement

Serving Ashburn, VA and surrounding areas

Approved

In business since 1997

Free estimates

Customers say: Quick response

"After my basement test come back with significantly elevated radon, I contacted radon abatement services at the recommendation of a neighbor. A day and a half later, they were on site. While performing the initial walk through, the experienced and thoughtful professionals adapted their plan to utilize my sump pump. This was an effective strategy as it addressed the main source of radon and concealed the system in completely unfinished space. I just received my post mitigation radon results, and the system is working phenomenally. To sum it up, I was blown away by the responsiveness, thoughtfulness, and reasonableness and can't say enough positive things about this company. I don't ever post reviews, but in this circumstance I absolutely had to."
11 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Radon Experts of VA, LLC
Radon Experts of VA, LLC
4.9(
83
)
Radon Gas - Abatement

Serving Ashburn, VA and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"They were polite and quick to get the work done. The first installation was not sufficient to reduce the radon levels but they came out a second time, free of charge, to make the necessary changes. The final result was more than satisfactory."
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Recommended by98%of homeowners
Dragon Ridge Home Inspections
5.0(
8
)
Radon Gas - AbatementRadon Gas - Testing

Serving Ashburn, VA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"JT of Dragon Ridge performed a Home Inspection and Radon Testing of a SFH in Fairfax, VA. JT arrived before I did, and was already examining the exterior of the property. While we waiting for my realtor to arrive, he grabbed a ladder and did a complete inspection of the roof (not all inspectors do this). Once we got inside, he explained the processes and we began. I shadowed him throughout the whole processes, and it was a wonderful experience. He was very thorough and knowledgeable, and was always willing to provide complete and educational answers about both the good and the bad he found. We got the report later that evening, and it was well written, with plenty of pictures of any deficiencies. He also performed a Radon test, and reported the results a few days later. I spoke to him over the phone about the findings, and he was able to discuss in detail the methodology he used, and the meanings of the testing numbers. Overall, I would highly recommend JT and Dragon Ridge."
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Recommended by100%of homeowners
Avatar for The Inspectors
The Inspectors
5.0(
3
)
Radon Gas - AbatementRadon Gas - Testing

Serving Ashburn, VA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

Your home is likely to be the largest investment you will ever make. It is absolutely essential that you know the condition of a home and its components before making an investment of this size. A home inspection is intended to inform you of the condition of your investment. Rest assured, The Inspectors will earn your trust. Call today, you will be relieved you did.

Recommended by100%of homeowners
Avatar for Water Damage America
Water Damage America
5.0(
100
)
Radon Gas - AbatementRadon Gas - Testing

Serving Ashburn, VA and surrounding areas

In business since 2014

Free estimates

Emergency services offered

Water Damage America provides the best and most reliable restoration services, we sustain our business on quality and integrity. We are experts in Water Damage and Water Mitigation Services. We are committed to quality from the beginning to the end of your project. We look forward to earning your business. We always work according to IICRC standards in restoration.\nWe are always available 24/7 for our valuable people to put them out of any Water Damage-related emergency.\n

Recommended by98%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

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 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.

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

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

The Ashburn, 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.