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

Avatar for SERVPRO OF CHESAPEAKE
SERVPRO OF CHESAPEAKE
4.5(
19
)
Radon Gas - AbatementRadon Gas - Testing

Serving Portsmouth, VA and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"The job itself was done well and promptly; however, when I asked for an estimate before the work was done, I was told that every job is different, and it would depend on how much chemical application was necessary, how long the crew needed to be there, etc.  In other words, they preferred not to give an estimate.  If we would have known their cost ($850) in advance, we might well have researched other options.  Since we had no idea how radical the repair work would be, we also had no idea our payment to SERVPRO was only half the cost of the job.  The contractor (recommended by SERVPRO) had a problem with the "swirly" pattern, and I could not get them to come back and fix the uneven finish around a wall socket whose cover now does not attach seamlessly to the wall.
Before I would use them again, I would research other options.  (I may still ultimately use SERVPRO, but I would be more careful about knowing the cost going into the job.)"
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+7

Recommended by88%of homeowners
Avatar for All States Air Duct Pro
All States Air Duct Pro
3.1(
236
)
Radon Gas - AbatementRadon Gas - Testing

Serving Portsmouth, VA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"A two-man team worked very efficiently to remove each vent cover and vacuum inside the vent openings throughout the townhouse. One man removed the vent covers while the other man vacuumed inside the vent openings. No problems with how they worked but I think there are other companies who perform a more thorough cleaning of ductwork using other methods. This company did a superficial cleaning and worked very quickly. In and out within an hour.


"
Before & After Air Duct Cleaning
Recommended by49%of homeowners
Radon Detection and Reduction FAQs, answered by experts

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

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.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

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.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The Portsmouth, 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.