Radon Testing and Mitigation Services in

Bethesda, MD

Are You Safe from Radon?

Radon Gas Testing, Mitigation, Maintenance Services are provided throughout Northern Virginia. Radon Defense is a locally owned and operated company providing solutions for all Radon Needs. We employ the latest in technology, tools, supplies, and equipment. Our services are provided for Home Owners, Home Buyers, Home Sellers, Real Estate Agents, and Home Inspectors. We are active members of AARST and NRPP. Radon Defense provides services in Arlington County, Fairfax County, Faquier County, Loudon County, Prince William County, and Stafford County. If you are in need of Radon Services call us at Radon Defense Today!

Professional Radon Testing in Bethesda

Although radon poisoning isn’t as well known or as prevalent as carbon monoxide poisoning, radon is responsible for thousands of fatalities every year. Exposure to it is the leading cause of lung cancer in non-smokers.

Since it’s a colorless and odorless gas, it can only be detected through testing. You could purchase a DIY test kit, but these have many disadvantages that could give inaccurate results.

Hiring a professional radon inspection company is the best method to regain confidence in your safety and health within your Bethesda home. Radon Defense will ensure your radon testing and mitigation are efficient and affordable.

What is Radon?

Radon is a naturally occurring radioactive element found in soil and rock. Radon does little harm as an element, but it decays into two other elements: polonium (Po) and lead (Pb) which are health risks. Po has a half-life of 138 days, while Pb has a half-life of 2 years. Both Po and Pb are highly toxic and carcinogenic.

According to the EPA, radon increases the risk of lung cancer almost as much as cigarette smoking. It’s estimated that over 4 million lung cancer deaths each year are due to radon exposure.

Is Radon a Problem in Maryland?

Yes, radon is a serious issue in Maryland. Radon is found throughout the state, especially near underground sources such as coal mines. If you live in one of these areas, you should consider having your home tested by a licensed radon inspector.

Radon levels in a house depend on rock presence on the foundation and if there are entry points into the crawl spaces or basements. This map of radon levels in Maryland shows how radon levels differ throughout the state.

The radon levels in Maryland range from 0-4 pCi/L:

0 – 1 pCi/L – Low-risk level
1 – 3 pCi/L – Moderate risk level
3 – 6 pCi/L – High-risk level
6+ pCi/L or above – Extremely high-risk level

Is Radon Testing Required in Maryland?

When purchasing a house in Maryland, rating testing is optional. However, in Montgomery County, things are different. A law was passed in October 2016 which requires a house to be tested during a real estate transaction.

These test results shouldn’t be over a year old when completing the sale. Some homeowners in Bethesda test their homes for radon before they list their houses for sale. But for those that don’t, the homebuyer has to have the house tested for radon.

Our professionals are experienced and certified in radon testing and mitigation in Bethesda. Get in touch with us, and one of our specialists will be happy to answer any questions you might have and help you schedule a site visit before installation.

Radon Mitigation

The EPA sets radon’s action level at 4 pCi/L (picocuries per liter). Results at or above this radon level require mitigation to protect your family’s health. The average outdoor radon levels are 0.4 pCi/L, and the average indoor radon levels are 1.25 pCi/L. Reducing radon levels to such levels requires efficient radon reduction systems that use specialized equipment to remove radon from the air.

There are two main ways to mitigate radon gas levels in your home. They include:

Air Exchange Ventilation Systems

An air exchange system uses negative pressure to pull radon out of the house and into an exhaust fan where it can be removed from the home. This method works well for homes built before 1980 because these homes were designed without adequate ventilation. However, newer models are required to have an air exchange system installed.

Ventilation Fans

A ventilation fan pulls outside air through cracks and holes in the walls and floors. The fan creates a draft that pushes indoor air out of the home. An air exchange system combined with a ventilation fan reduces radon levels significantly.

Do Passive Radon Systems Work Efficiently?

Yes! Passive radon systems are effective in reducing radon levels inside homes. When used correctly, they provide a cost-effective solution to reducing radon levels.

However, the effectiveness of passive radon systems depends on the quality of the installation. If the system isn’t sealed properly, it’s not as effective.

Schedule Radon Testing Services in Bethesda Today

If you’re interested in learning more about radon testing and how to reduce the health risk and improve your peace of mind, contact our trained, skilled and certified radon testers today!

Radon Defense professionals know where to get the best air sample and use testing methods superior to home test kits. Contact us today and our friendly team members will be happy to answer any questions you may have on pricing or help you schedule an appointment online for radon testing or mitigation.

Customers Served

Wenqi Z.

We chose Radon Defense because of its quick response and fair pricing. Linda presented all the options for the Radon mitigation system with photos and clear prices. The technicians were efficient on the installation and let me know the progress of their work. The look of the installed system blends seamlessly with my house. Overall the experience is great and I would recommend them to others in the future. - 9/07/2024

Richard M.

There are many companies that promise things and don't deliver. This is surely NOT one of them. They told me exactly what to expect and what they could do for me. Eric and Nicolas came out to my house. Expected it thoroughly and went right to work. Prior to them rectifying the issue, our radon levels were off the charts. Now our radon levels are almost non-existent. I had one concern after about four months of having the radon pump placed in our home. I called Radon Defense and Paul answered immediately. Unbeknownst to me, my concern wasn't a concern at all and my radon levels were fine. My issue was were addressed immediately and Paul assured me that Radon Defense will be with my and my family forevermore..... So refreshing. - 9/03/2024

Richard H.

The installation crew was great to work with and the installation looks very good. The radon levels measured the day after the work completed decreased. Hoping that trend will continue. - 8/20/2024

A J.

Would recommend Radon Defense. Eric, who came to visit - educated us on its operation and provided valuable homeowner tips. Additionally, Linda, the phone representative, is kind and attentive. - 8/13/2024

David O.

I highly recommend Radon Defense. From my first call through final installation of a radon mitigation system, they were professional, courteous, patient, and never high pressure. I had to get approval from my homeowner's association, which slowed things down for me, but Radon Defense worked with me and were ready to install the system as soon as I got approval. On the day of the installation, the crew was careful and did a very professional installation and cleaned up the work area. They then walked me through the system, explaining how everything works and what I should look out for to make sure it continues to operate. Communication was always clear and prompt with everyone I interacted with. - 8/03/2024

Linda C.

Prior to moving into our residence, we reached out Radon Defense to do a radon inspection. I am so glad we did because our radon levels were sky high. I contacted Linda and she was wonderful — super nice, responsive and knowledgeable. We ended up also getting a mitigation system installed by the company (they offer various styles depending on preference and price point). Eric and Nicholas assisted with that and they were timely and kept me informed on progress. I’ve had such a pleasant experience with this company, and Paul was super helpful when I had follow-up questions as well. You won’t be disappointed if you go with this company! - 8/03/2024

Kate H.

The Radon Defense team was amazing. Their service was professional, prompt, and made an immediate difference in our basement. They installed a system in our house that required relocating a passive pipe. Eric did an excellent job informing us about the process, installing the system, and educating us about how it worked. Linda effectively communicated with us, giving us estimates and arranging a roofer and electrician to complete the job. I would highly recommend Radon Defense! - 8/03/2024

Zach D.

My experience from start to finish was great. I called and spoke with Paul, he helped guide me on the phone with options. The crew that arrived took their time finding the best spot for it it to work and the most aesthetically appealing as well. I would highly recommend them. Thanks - 6/03/2024