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HUD Radon Testing

Get non-biased reporting with HUD radon surveys for commercial real estate and private homes.

HUD Radon testing that’s done right.

Radon, a naturally occurring, radioactive, odorless gas is undetectable by human senses and is linked to lung cancer and other health issues. This dangerous gas is released into the environment when uranium breaks down in soil and ground water. The resulting radon gas then seeps into buildings via cracks and construction-related air passageways. Once inside a building, it poses several health risks to occupants exposed to its ionized radiation. According to the EPA, an estimated 1 in 15 houses may be at risk of unsafe radon levels.

Testing is the only way to identify radon gas.
Our National Radon Proficiency Program (NRPP) certified consultant/technician will come to your site to conduct testing to fit your property’s needs. We offer radon testing for commercial, public, and residential property owners throughout California. And, we are even qualified to conduct HUD radon surveys for multi-unit family dwellings.

Do you need a HUD-compliant radon survey?

We offer screening surveys compliant with the US Department of Public Housing and Urban Development (HUD), Multi-Family Development Radon Policy. Our reports comply with the requirements for multi-unit dwellings of 5 or more units. Also known as multi-family dwellings, they include buildings defined as detached, semi-detached, row, walkup, or elevator‐type rental or cooperative housing with kitchens and baths.

Common Radon Testing Sites:

Residential – Single Family Homes, Duplexes, Apartment Complexes, Condos/HOAs
Public – School Districts, State Parks, Federal Buildings

Commercial – Industrial Building/Properties, Hi-tech Building/Properties, High-rise Offices, Restaurants, Grocery Stores, Retail

Radon Testing Methods:

Short-term tests – These tests remain in your apartments from 2 to 90 days, depending on the device.
Long-term tests – These tests stay in your apartments for more than 90 days, which may help tell you what the average radon level is year-round. Radon levels vary with the season, with winter months often indicating the highest levels.  

Radon Testing and Reporting Process

When you contact us, we’ll discuss your needs and explain how our radon testing can help. Additionally, we’ll include an itemized proposal of our service.

Once you choose to work with Adviro by signing the proposal, we’ll immediately contact you to schedule your appointment.

Our radon technician will visit your property for environmental sampling, material identification, and documenting the process. They will take non-invasive air samples. These short-term samples will have to be on-site for a minimum of 2 to 7 days. These samples will be prepared for independent laboratory analysis.

Once all results are gathered, we’ll deliver clear, concise, and detailed reports with pictures, diagrams, certifications, and documentation compliant for regulatory agencies. The detailed information provided in our reports delivers and shows due diligence for compliance as well as any possible future litigation.

Please review your report.

You can contact our consultants/technicians for review—or we’ll contact you when we’re aware the project warrants further explanation. At this point, with the specific details of your report, we can consult regarding potential strategies for your next course of action.

If there is a radon hazard at your location, we typically advise that you see a licensed radon mitigation company and certified expert. Their experts will be able to use a variety of techniques to mitigate gas and improve your indoor air quality.

Radon Services:

    • Survey for HUD
    • Real Estate/Property – Screening (for Health)
    • Clearance Post Mitigation

Why Go Adviro?

    • Certified Environmental Experts
    • Responsive Scheduling
    • Quick Turn-Around Reporting
    • Concise, Detailed Reports
    • Transparent Package Pricing
    • Courteous Professional Staff



What is radon?

Radon is a naturally occurring radioactive gas released in rock, soil and water that can build up to dangerous levels inside any home—this includes new and old homes, well-sealed and drafty homes, and homes with or without a basement.

Radon gas is odorless and invisible and the only way to know if your home has a radon problem is to test for it. Radon is a serious health risk, however, it can be reduced easily when the appropriate steps are taken.

Can breathing radon in your home cause lung cancer?

Yes, breathing radon can increase your risk of lung cancer. In fact, radon is the number one cause of lung cancer among people who do not smoke. And it is the second leading cause of lung cancer for people who do.

The EPA estimates that radon causes more than 20,000 deaths from lung cancer each year in the U.S. If you smoke and your home has a high radon level, your risk of lung cancer can increase even more.

Where is radon found in the United States? And how is it measured?

Radon has been found in every state—in addition—homes with high levels of radon have been found in every state.  In fact, radon levels can vary greatly from home to home–even levels next door can be very different.

Radon is measured in picocuries per liter of air (pCi/L), a measurement of radioactivity. In the United States, the average indoor radon level is about 1.3 pCi/L. The average outdoor level is about 0.4 pCi/L.

The U.S. Surgeon General and EPA recommend fixing homes with radon levels at or above 4 pCi/L. EPA also recommends that people think about fixing their homes for radon levels between 2 pCi/L and 4 pCi/L.

What types of homes should be tested for radon?

The United States Surgeon General recommends ALL homes be tested for radon gas.

How can I test my home for radon?

You have several options when it comes to testing for radon.

1. One way is to use a test kit which can be found in local home improvement or hardware stores, as well as online.
2. Sometimes you can get a test kit from your state radon office.
3. You can hire a qualified tester like Adviro to do a radon test for you. The benefit of having a company that does radon testing only—not mitigation,  abatement or remediation—is knowing that the tests will be non-biased, giving you more peace of mind.

As a Landlord and commercial property owner, how do I get my multi-unit dwellings tested for radon?

You can hire a certified radon testing company – If you want to have your tests done by a professional radon consultant, we recommend using an environmental firm that does testing only, so you’re ensured accurate, non-biased results. According to the HUD radon policy, a Radon professional is to supervise the testing.

For example, at Adviro, we do just that—testing only—so you can have peace of mind knowing your results are good to go. We use an independent 3rd party to conduct the radon analysis. We then create the reports that show the results of testing.

If there is a radon hazard that needs mitigation, you should then review the situation with a licensed radon mitigation company and certified expert. Each property is unique, and a mitigation company will be able to use various techniques to mitigate the gas and improve the indoor air quality.