Iowa Radon Defense Q&A

My neighbors house tested high for radon, does that mean mine will too?

It's possible, but not guaranteed. There are many variables to consider. Radon levels fluctuate every hour of the day and from one home to the next due. This is due to many factors, including the amount of uranium, radium, thorium, and other radioactive elements found in the soil and how quickly they are breaking down around the structure. The insulation of the home also has a lot to do with how concentrated the radon is. A building that breathes will vent some of the radon, whereas a building that is well-insulated traps air (and radon) inside.

The only way to know a structure or home's radon level is to test it.

Why is breathing in radon gas harmful?

Radon decay particles are radioactive and attach to particles in the air we breathe in our homes. Once breathed in, the radon decay particles transform our lung tissue. Over a long period of time, exposure may cause lung cancer. The higher the level and the longer the period of exposure, the greater the risk will be. 

Does radon mitigation really work?

Yes it does! With all honestly, it's impossible to mitigate radon entirely down to level 0 pCi/L, our radon mitigation systems reduce radon gas out of the home and down to a level that is as low as possible.

Are radon mitigation systems effective?

Most definitely. Radon mitigation systems are proven effective in reducing harmful radon gas levels, ensuring a safer indoor environment. This is also highly recommended by the government.

Are homes in Iowa being repaired due to radon gas exposure?

It is likely that many homes in Iowa have been repaired or mitigated to reduce radon gas exposure. In fact, the Iowa Department of Health and Human Services recommends that all homes in the state be tested for radon and mitigated if necessary.

Are radon mitigation systems noisy?

No, the new and modern radon mitigation systems are designed to be quiet, ensuring minimal noise disturbance in your home.

Can a radon mitigation fail to reduce high levels?

Rarely, radon mitigation can fail if it is not properly designed or installed. We recommend a professional assessment and regular testing ensure effective reduction of high radon levels in homes.

Can I install a radon mitigation system myself or on my own?

It is possible but a radon mitigation installation is recommended with a certified professional for optimal safety and efficacy. Radon experts ensure correct installation and ongoing effectiveness, protecting your home and family. They are trained and knowledgeable about each step of it.

Can radon mitigation cause home foundation problems?

No, proper radon mitigation methods are designed to prevent foundation problems. They focus on redirecting radon gas without compromising your home's stability if correctly installed.

Can you cheat a radon test?

It's actually pretty easy to cheat a radon test with basic charcoal test kits. The best way to get accurate results is to carefully follow the provided instructions.

When using a CRM test, a licensed professional can tell if a CRM has been moved or tampered with when they see the report.

Can you mitigate radon yourself?

The Environmental Protection Agency (EPA) advises that a home radon mitigation system be installed by a licensed professional and according to state regulations.

Do electronic air filters help in reducing radon?

Electronic air filters can help reduce the amount of radon in the air, but they are not specifically designed to remove radon. So it would just go back and circulate.  These electronic air filters work by using an electrical charge to trap particles, such as dust and allergens, as they pass through the filter. While radon gas is also a type of particle, it is an inert gas and does not typically adhere to surfaces, so it is not easily trapped or reduced by these air filters.

Does opening windows reduce radon?

Opening windows can only help ventilate indoor air, but it's not a sufficient long-term solution for reducing radon levels. Radon mitigation systems are more effective as they built specifically for that matter.

Does radon have a foul odor?

It's rare that radon can be associated with a foul odor. There is a small possibility because radon is produced by the decay of uranium and other radioactive elements in the soil, and these elements can sometimes produce odorous compounds. As an example, radon gas may be similar to a sulfur-like smell, as it can be produced by the decay of sulfur-containing compounds in the soil.

Does radon have an odor?

No, radon is an invisible, odorless gas. 

Does radon mitigation decrease home value?

That's definitely a no and it will never decrease a property value. Per government mandate, it's already required in a typical house hold. It enhances safety and peace of mind of any homeowner. Real estate experts prefer homes with installed radon mitigation systems versus none.

Does radon mitigation help with moisture?

Radon mitigation focuses on reducing radon gas levels. While it may indirectly help lessen moisture by altering airflow, it's not a dedicated solution for moisture control in the area.

Does radon mitigation increase home value?

That is correct. Radon mitigation can enhance home value by ensuring a safe living environment if you want to consider selling your home. This is highly suggested by most parts of the United States, home inspection companies, and real estate companies. Current buyers appreciate reduced health risks, making your property guaranteed more attractive in the market.

Does radon mitigation really work at any type of home?

Radon mitigation is guaranteed effective for various home types as long as it's installed correctly. Professional assessment and tailored solutions ensure safe indoor air quality for all. Make sure you have a it installed with a certified and trained radon expert.

Does radon mitigation reduce humidity?

Radon mitigation can have a effect on indoor humidity levels due to airflow, but it's not the proper method for reducing humidity. For effective humidity control, consider the right solutions focusing on it.

Does the ozone layer help reduce radon?

The ozone layer does not directly reduce radon levels in the atmosphere. Radon is from the ground going up. It is a naturally occurring radioactive gas that is produced by the decay of uranium in soil, rock, and water. Radon can enter buildings and homes through cracks in the foundation and other openings.

Has anyone ever died from radon gas?

Radon is the second leading cause of lung cancer in the United States. It is responsible for approximately 21,000 lung cancer deaths annually with about 2,900 of these deaths occurring among people who have never smoked.

How do I choose a radon mitigation company?

We recommend looking for a trusted company with good reviews and gathering recommendations from family and friends. In addition, be sure to double-check that the radon mitigation team consists of licensed, full-time employees rather than independent contractors.

Here are a few key questions to ask to weed out a headache of a radon mitigation project:

  • Does the company design its radon mitigation systems based on the structure of the home and the customer's needs? (Do they consider extraction point and fan placement and how that will affect the home and quality of living?)
  • What kind of warranty do they offer on the levels and radon fan? Do they offer a 10-year warranty?
  • Are they going to last for a while to provide service and any necessary warranty work?

How do I test for radon inside my home?

Be sure to set up the radon test in the lowest livable (unfinished or finished) space of your home, in the middle of the room, at least 2 feet off the floor, and where no drafts will blow over it from a fan, vent, or doorway. Closed home conditions (keeping windows and doors closed as much as possible) are necessary for proper testing.

Charcoal radon test kits may be purchased through us with our certified third-party lab partner, Alpha Energy. The kit comes with clear instructions from Alpha Energy Labs. We'll mail the kit directly to you. After testing is complete, you'll mail the kit to Alpha Energy. They'll assess the test and provide you and us with the results. This process usually takes 1-3 weeks. Testing kits can also be found at your local hardware store.

You may hire Iowa Radon Defense to perform a professional-grade Continuous Radon Monitoring (CRM) Test. A CRM test monitors radon continuously throughout its set period. Radon level data is recorded every hour of the day and that information is used to calculate the average radon level in the home. The test is not much larger than a piece of toast, and we have our licensed professionals set it according to the structure of your home. CRMs run for a minimum of 52 hours, so this process usually takes 3-4 days. Once the test is done running, we will come back to assess the results and print off the report for you to keep. If levels are elevated, we can also discuss mitigation options and costs with you at that time.

How do you get rid of radon gas in your home?

Many people don't know there is more than one way to mitigate radon. The most common method is depressurization, which involves an extraction point below the slab and an exhaust fan that pulls radon gas out from under and around the home, redirecting the radon up into the atmosphere where it can safely decompose. While there are different ways to mitigate, only one way is currently recognized by state regulation and that is depressurization.

When determining which radon company is right for you, be sure to gather estimates and decide what kind of system you're looking for. We recommend choosing a state-licensed and trained professional that understands the codes and regulations of the area in which you live. 

How do you install a radon mitigation system?

Installing a radon mitigation system typically involves the following steps:


1. Conduct a radon test: The first step in installing a radon mitigation system is to conduct a radon test to determine the level of radon in the indoor air. This test can be performed by a professional radon testing service or by using a do-it-yourself radon test kit.

2. Determine the appropriate mitigation system: Based on the radon test results, a qualified radon mitigation contractor will determine the appropriate type of mitigation system to install. The type of system will depend on factors such as the size and layout of the building, the level of radon present, and other factors.

3. Install the system components: The mitigation system typically includes several components, such as a suction point, piping, a fan, and a vent. These components are installed by cutting a hole in the foundation or slab, inserting the suction point and piping, and connecting them to the fan and vent.

4. Seal the system: It is important to seal any gaps or cracks in the foundation or slab to prevent radon from entering the building. The contractor may use a sealant or other materials to seal these areas.

5. Test the system: After the system is installed, the contractor will conduct a post-mitigation radon test to ensure that the system is working effectively and reducing radon levels to a safe level.


It is important to hire a qualified radon mitigation contractor or trained expert to install the system, as a wrong installation can be ineffective and may even increase radon levels in any area. The contractor should be licensed and experienced in radon mitigation and should follow all relevant building codes and regulations.

How do you mitigate radon?

You can mitigate radon by installing a specialized system that redirects radon gas from your home. Make sure you hire certified professionals, like Iowa Radon Defense to ensure effective mitigation in your area.

How do you quiet or reduce the noise of a radon mitigation system?

To reduce noise from a radon mitigation system, make sure your installation is correct and proper by a professional. You can also use insulated pipes, and locate the fan away from living spaces for a quieter operation.

How do you read the levels in a radon mitigation system?

To read radon levels in a mitigation system, use a radon measurement device, such as a Continuous Radon Monitor (CRM). Install the device, let it initialize, and collect data on radon concentrations. Retrieve and interpret the data, comparing it to recommended action thresholds. Adjust the mitigation system if needed to maintain safe levels.

How does radon testing work?

Radon testing involves placing detectors in your home to measure gas levels over a specified period. Certified radon professionals can immediately analyze results to assess potential health risks and will educate you if mitigation is necessary.

How is a radon test performed?

The United States Surgeon General, Environmental Protection Agency (EPA), and Health Canada recommend testing the radon levels in your home every two years at a minimum.

A professionally calibrated radon monitor, such as a Continuous Radon Monitoring (CRM) test is the best approach to accurate radon testing. A CRM test is set up by a licensed and trained specialist. These tests show hour-by-hour data, giving a better picture of the radon story happening in the home within just a few days. If you're interested in scheduling a CRM test, reach out to the Iowa Radon Defense team.

Other options for testing include DIY charcoal radon test kits, which you can purchase through us with our third-party lab partner, Alpha Energy. This process usually takes a few weeks and provides you with an average level of radon present in the home. Charcoal kits may also be found at your local hardware store.

How long do radon tests take?

It depends on the type of test performed. Short-term radon tests can be completed in 48-96 hours while long-term tests can last anywhere from 30 days to a full year.

How long does it take to install a radon system?

The time it takes to install a radon mitigation system depends on the structure of the home and the solution that will work best to reduce its radon levels. A basic system can typically be installed in 2-3 hours while more complex systems can take up to a full day.

How long will the fan last?

The fan is mechanical, which means it will age and eventually stop working over time. On average, we’ve seen more modern fans last between 7-10 years. Iowa Radon Defense offers a 10-year warranty on all parts, labor, and levels below 4 pCi/L.

How loud is a radon pump?

Radon pumps are designed to operate at a relatively low noise level, typically between 30 and 50 decibels (dB) when measured at 6 feet. This is equivalent to the noise level of a quiet conversation or a refrigerator. However, the noise level can be affected by factors such as the age and condition of the pump, the type of housing or enclosure used to protect the pump, and the specific location of the pump.

How much does a radon mitigation system cost to run?

Iowa Radon Defense uses low-voltage depressurization fans because conserving energy for you and our planet is important to us. The electric cost to run a fan 24/7 is about the same as running a 60 Watt light bulb. Radon fans typically run between 42-85 watts. Operating costs can be calculated by multiplying the device's wattage by the hours used per day, dividing by 1000, and multiplying by the kWh (per kilowatt hour) rate on the electric bill.

How much does a system cost to run?

We use low voltage depressurization fans at Iowa Radon Defense, because conserving energy for you and our planet is important to us. The electric cost to run fan 24/7 is about the same as running a 60W light bulb. Radon fans typically run between 42-85 watts. Operating costs can be calculated by multiplying the device's wattage by the hours used per day, dividing by 1000, and multiplying by the kWh (per kilowatt hour) rate on the electric bill.

How much does it cost to put a radon system in?

A basic radon mitigation system starts around $1000 and goes up from there depending on the home’s unique needs. On average, a radon mitigation system ranges between $800 and $1,500+. As an indoor air quality company, Iowa Radon Defense's goal is to get radon as low as possible. We also include options to make your home healthy with different radon mitigation methods, air duct cleaning, air purification and filtration, and ventilation. 

How noisy or loud can a working radon mitigation system be?

The noise level of a radon mitigation system can vary depending on the type of system that is installed and the location of the fan. Most radon mitigation systems use a fan to vent the radon gas from beneath the home to the outside, and the noise level of the fan can range from very low to moderate. The newer radon mitigation systems tend to be quieter than older systems, and some models are designed to operate at a low noise level. The location of the fan can also impact the noise level of the system. If the fan is located outside of the home, it will typically be quieter than if it is located in the attic or other interior space. It's important to note that while some noise may be generated by a radon mitigation system, it is typically not loud enough to cause a disturbance or be heard from inside the home. In most cases, the noise level is comparable to that of a refrigerator or a low-volume conversation.

How to know when it's time to replace the radon fan?

Radon mitigation fans are designed to operate continuously for several years, but over time they may become less effective due to wear and tear, clogging or other issues. The following are some signs that it may be time to replace the radon fan:


Increasing or Increased radon levels: If you have a radon mitigation system installed, and you notice that radon levels have increased, it could be a sign that the fan is not functioning correctly. Radon levels should be monitored regularly, and any increase in levels should be investigated.


Unusual noise: If you hear unusual noises coming from the fan, it could be a sign that the fan is starting to wear out. Vibrations, grinding or squealing noises are all indications that the fan needs to be replaced.


High energy bills: If you notice a significant increase in your energy bills, it could be a sign that the fan is not functioning efficiently. The fan may be working harder than necessary to draw radon out of the house, which can lead to higher energy costs.


System Age: Radon mitigation fans typically last between 5-10 years. If your fan is approaching or exceeding this lifespan, it may be time to consider replacing it.


If you suspect that your radon fan needs to be replaced, it's important to contact a qualified radon mitigation professional such as Iowa Radon Defense right away.

I have a sump system, how will that affect the radon system?

All radon entry point openings must be sealed for system effectiveness, including sump systems. In most cases, we can utilize the sump pit for depressurization. We can also use sub-slab and membrane extractions for depressurization depending on the structure and design of the home.

I have a sump system, how will that effect the radon system?

We suggest all radon entry points openings must be sealed for system effectiveness, including the sump systems. We can utilize the sump pit in most cases for depressurization, and we also use sub slab and membrane extractions for depressurization depending on the home's unique design.

I tested my home for radon and the results are high. What should I do next?

There is no such thing as a safe radon level. 66% of radon induced lung cancer cases come from homes with levels less than 4.0 pCi/L (Center for Environmental Research and Technology, Inc aka CERTI). The goal is always to get radon levels as low as possible. If you get high radon levels from your tests, fix your home. Don't wait until you experience the symptoms, mitigate with a professional.

I tested my home for radon and the results are slightly high. What now?

There is no such thing as a safe radon level. 66% of radon-induced lung cancer cases come from homes with levels less than 4.0 pCi/L (Center for Environmental Research and Technology, Inc aka CERTI). This is why our goal is always to get radon levels as low as possible.

Fix your home. Don't wait, mitigate.

I tested my house and the results are slightly high. What now?

No level of radon is considered "safe." Iowa Radon Defense recommends having a licensed professional provide education and options for mitigation depending on your home's structure and your unique needs. 

Is a radon mitigation system better installed in the basement than any other areas in the home?

Our most common radon mitigation installation are located in the basement, but it can be effective in any area. A radon certified professional assessment ensures the best placement for reducing radon levels.

Is Iowa Radon Defense a recommended radon mitigation dealer in Iowa?

Yes, Iowa Radon Defense is actually the sister company of Radon Defense Midwest is highly known in Omaha as a top radon mitigation service provider. Their production team is licensed and well-trained to handle any radon concerns. Same quality of service with a good price point. They also specialize in Indoor Air Quality service regardless of if it is a commercial or residential construction. You can always check them at

Is Iowa Radon Defense certified installing radon mitigation systems?

Yes, Iowa Radon Defense is guaranteed certified to install radon mitigation systems, they are part of the AARST-NRPP which is an organization dedicated to the highest standards of excellence and the ethical performance of radon measurement, radon mitigation and knowledge transfer, ensuring effective and safe reduction of radon levels in homes. Every radon expert is trained and updated with the latest technology they need to know about radon mitigation.

Is radon mitigation covered by any health insurance?

Typically, health insurance doesn't cover radon mitigation, but check your policy for specifics as it is still part of achieving a healthy lifestyle.

Is radon mitigation just a hoax or a business racket?

Radon mitigation is a crucial health measure, not a racket or bogus problem. This is proven by the EPA (Environmental Protection Agency) and even the American Cancer Society. It already considered as the #1 carcinogen in terms of environmental factors that induces cancer. The purpose of radon mitigation is to reduce harmful radon gas levels, safeguarding your family's well-being and ensuring a safe living environment.

Is radon mitigation necessary in every home?

While home inspectors require a radon mitigation system for every home. It is also starting to be mandated by the government for health reasons. Radon mitigation is high recommended for all homes whether old or new to ensure a safe indoor environment, as radon exposure poses health risks such as lung cancer.

Is radon mitigation required by the United States law?

While radon mitigation isn't mandated by some parts of the United States yet, it's strongly advised due to health risks associated with radon exposure. Some states are started to include them during a home inspection to protect your home and every family's well-being.

Is the fan noisy and will it yellow?

Our radon mitigation system uses a fan with a mechanical motor. While it produces sound, the level of noise is subjective to the individual and their sound preferences and sensitivity. Our design specialists will discuss the sound and placement of the radon exhaust fan with you to determine the best solution for your unique needs. While we can't change the mechanical noise, we do have options to address airflow noise such as our muffler and fan cover. Our fans are UV-resistant and will not yellow over time.

Is there radon in every home?

Yes, radon gas is present in every structure, including homes, schools, office buildings, libraries, retail stores, grocery stores, and so on. No level of radon is considered "safe," and the EPA strongly recommends considering radon mitigation if your home has a radon level over 2 pCi/L. In fact, 66% of radon-induced lung cancer occurs within a range of 2-4 pCi/L, and mitigation is strongly encouraged for any levels above 4pCi/L. Outdoor natural exposure to radon is 0.4 pCi/L.

Should you buy a house with high radon levels?

Anyone can buy a home with high radon levels. However, radon mitigation should be performed as soon as possible. But be aware that most radon contractors will put in one extraction point system with a fan that may or may not mitigate effectively. While the seller is concerned with costs and regulations, the buyer is more concerned with air quality and who fixes the radon issue for their new home.

What are other benefits of a radon system?

Better health and lower humidity has added health benefits in the form of fresher interior air and the elimination of musty or sulfuric smells. Decreased humidity means reduced form of bacterial growth, mildew, and dust that can aggravate asthma, allergies, and other lung conditions.

What are the most common health issues can radon exposure cause?

Radon exposure can involve in breathing issues, respiratory problems but it is a leading cause of lung cancer in non-smokers and can increase the risk in smokers. Prolonged exposure to elevated radon levels can result in lung tissue damage, leading to lung cancer. It's crucial to mitigate radon in homes to reduce this health risk.

What are the symptoms of radon in your home?

Those who have been exposed to hazardous levels of radon will experience a variety of symptoms. Some of the most common symptoms are a persistent cough, hoarseness, wheezing, shortness of breath, coughing up blood, chest pain, loss of appetite, and frequent infections such as bronchitis or pneumonia.

What causes radon levels to go up?

Radon levels can increase due to factors like soil composition, ventilation, and weak building materials. It crawls through cracks and floors. Radon is a naturally occurring gas that seeps from the ground and can accumulate in homes, especially in poorly ventilated or tightly sealed spaces.

What do you do if your radon levels are high?

Contact the experts at Iowa Radon Defense! Give us a call at 1-515-416-8521 or reach out online to schedule a free radon mitigation estimate in your area. Our trained technicians will help you determine the best option for your home and unique needs.

What does a radon mitigation gauge do?

A radon mitigation gauge, also known as a manometer, is a device that is used to monitor the performance of a radon mitigation system. The gauge measures the pressure differential between the suction point of the system and the ambient air pressure, which helps to determine if the system is operating effectively.

What does radon damage?

Radon is still a radioactive gas. It can damage lung tissues when inhaled, increasing the risk of lung cancer or any illnesses. Make sure you test your home and mitigate as early as you can.

What does radon do?

Radon is a colorless, odorless gas that occurs naturally in soil, on the ground and even in water. Prolonged exposure to high levels can increase the risk of lung cancer. Proper mitigation reduces this risk.

What happens in a radon mitigation inspection?

A radon mitigation inspection is an evaluation performed by a licensed radon mitigation contractor to determine the appropriate type of mitigation system to install and ensure that the system is properly installed and effectively reducing radon levels to a safe level.


Here are the usual steps for a typical radon mitigation inspection:


Radon testing: The contractor will first conduct a radon test to determine the level of radon in the indoor air. This test may be performed using a long-term or short-term test kit, or a continuous radon monitoring device.


Evaluation of the building: The contractor will evaluate the building to determine the appropriate type of mitigation system to install. Factors such as the size and layout of the building, the foundation type, and the level of radon present will be taken into consideration.


Design of the mitigation system: Based on the evaluation of the building, the contractor will design the mitigation system, including the placement of the suction point, piping, fan, and vent.


Installation of the system: The contractor will install the mitigation system components, including cutting a hole in the foundation or slab to insert the suction point and piping, and connecting them to the fan and vent.


Sealing of gaps and cracks: The contractor will seal any gaps or cracks in the foundation or slab to prevent radon from entering the building.


Post-mitigation testing: After the system is installed, the contractor will conduct a post-mitigation radon test to ensure that the system is effectively reducing radon levels to a safe level.


System operation check: The contractor will check the operation of the mitigation system, including the functioning of the fan, manometer, and other components.


The radon mitigation inspection is important to ensure that the system is properly designed, installed, and functioning effectively to reduce radon levels in the indoor air.

What is a Breathe EZ Air Cleaner?

Breathe EZ Air Cleaner is a brand of air purification system that is designed to clean and purify the air in indoor spaces. The air cleaner uses advanced filtration technology to remove harmful pollutants, allergens, and irritants from the air, including dust, pollen, mold spores, pet dander, smoke, and odors. Their air cleaner typically utilizes a multi-stage filtration process that includes a pre-filter to capture larger particles, a HEPA filter to remove smaller particles, and an activated carbon filter to adsorb odors and chemicals.

What is a multifamily radon mitigation service?

A multifamily radon mitigation service is a service that is designed to reduce the levels of radon gas in multifamily buildings, such as apartment buildings or condominiums. Radon is a naturally occurring gas that can seep into buildings through cracks and gaps in the foundation, and it is the leading cause of lung cancer among non-smokers. Multifamily radon mitigation services typically involve the installation of a radon mitigation system, which includes a radon fan, piping, and other components. The specific design of the system will depend on the size and layout of the building, as well as the level of radon present.

What is a radon air purifier?

A radon air purifier is a type of air purification system that is designed to reduce radon levels in indoor air. Unlike traditional air purifiers, which use filters to capture airborne particles and pollutants, a radon air purifier uses a technology called "air exchange" to remove radon gas from indoor air. This special purifier works by drawing indoor air through the unit and venting it outside, while simultaneously pulling in outdoor air to replace the indoor air. This process is known as "air exchange" or "air turnover", and it is effective at reducing radon levels in indoor air by diluting the concentration of radon gas. We still highly recommend a radon mitigation system as the radon reduction results are better.

What is a sump pump cover seal for?

A sump pump cover seal is used to seal the cover of a sump pump basin. The sump pump is a device that is installed in the basement or crawlspace of a home to help prevent flooding by pumping out excess water that collects in the sump basin. The cover of the sump pump basin is designed to keep debris and other objects from falling into the basin and interfering with the operation of the pump. Make sure the seal is tight.

What is an example of radon?

Materials that can be in a form of granites, migmatites, some clays and tills are particularly rich in uranium and radium, which decay into radon. Radon exhalating from the ground beneath homes and buildings is the main source of radon in indoor air.

What is radon in real estate?

As of now, it is becoming more common to test homes for radon in real estate transactions, but it is not yet required by state or federal regulations. Home buyers want to know that the home is healthy, and radon adversely affects health. Sellers should take care of radon issues prior to selling the home both for the sake of their own health and that of future buyers. The radon industry relates to real estate transactions, but we’re different than the rest of the industry because we care about the health of the home and the homeowners that live there.

What is the difference between commercial and residential radon mitigation?

The main difference between commercial and residential radon mitigation is the scale and complexity of the systems required to address the radon issue.


Residential radon mitigation typically involves the installation of a single radon mitigation system in a single-family home or a small multi-family building.


Commercial radon mitigation, on the other hand, involves larger and more complex systems that are designed to address the radon issue in larger commercial buildings such as office buildings, hospitals, schools, and other large-scale structures. The installation of these systems requires a higher level of expertise and coordination, as they may involve multiple systems installed in various parts of the building, as well as the integration of the system into the building's HVAC system.

What is the highest radon level?

The highest recorded level of radon in the USA was 2600 pCi/L in Boyertown, PA. Radon fluctuates every hour throughout the day, having peaks and valleys in levels of any given structure. Our team has seen levels in Iowa anywhere between 0.4 and 295 pCi/l. Our protocols to design systems fix the home no matter the level. 

What is the meaning of radon mitigation?

Radon mitigation refers to the process of reducing radon gas levels to ensure a safer living environment. You can hire radon certified experts like Iowa Radon Defense to give you the best quality radon mitigation process for your home.

What is the purpose of a radon exhaust fan?

A radon exhaust fan is typically part of a radon mitigation system, which is designed to reduce the levels of radon gas in a home or building. The fan is installed in the attic or an exterior location, and it creates negative air pressure beneath the building's foundation. This negative pressure helps to draw radon gas out of the soil before it can enter the home, and the fan then vents the gas outside the home.

What is the useful life of radon mitigation system?

A quality and correctly installed radon mitigation system can last for many years, ensuring continuous protection against radon gas. Regular testing and proper maintenance help maintain its effectiveness over time.

What should we do if a neighbor's radon fan is noisy?

If your neighbor's radon fan is noisy and is causing a disturbance, there are a few steps you can take:


Talk to your neighbor: The first step is to talk to your neighbor about the noise issue. Explain how the noise is affecting you and ask if there is anything they can do to reduce the noise level. They may be willing to install a quieter fan or relocate the fan to a different location.


Check local noise ordinances: Check your local noise ordinances to see if there are any regulations regarding noise levels. If the noise level exceeds the limit, you may be able to file a complaint with your local authorities.


Contact a radon mitigation professional: If the noise is due to a malfunctioning fan or an improperly installed system, it may be necessary for a radon mitigation professional to inspect the system and make repairs. (Make sure your neighbor knows first!)


Install soundproofing at your home: If the noise cannot be resolved through other means, you may need to install soundproofing in your home to reduce the impact of the noise.


It's important to approach the issue with your neighbor in a respectful and friendly manner. By working together, you may be able to find a solution that works for both of you.

What states have high radon?

Radon is present throughout the USA. While every state has radon, levels naturally vary from state one state to the next, and high levels have been recorded in all states. Iowa has some of the highest radon level averages in the country. For more information, refer to

What time of day is radon highest?

Radon levels can vary throughout the day, there is really no specific time. The radon levels are generally higher during the night and early morning when indoor spaces are less ventilated. However, radon concentration can also be influenced by various factors, such as weather conditions and ventilation patterns in your home.

When is radon mitigation necessary?

Radon mitigation is necessary especially when your radon test levels exceed the safe limits. Regular radon testing is recommended, especially in high-risk areas or before buying/selling a home, to ensure indoor air quality. That is the first step to know when you need a mitigation.

Where does radon come from?

Radon is a radioactive gas that forms naturally from the decay of uranium in soil and rocks.

Where is radon most commonly found?

Radon is present outdoors and indoors. It is normally found in low levels (less than 0.4 pCi/L) in outdoor air. When radon is trapped indoors, it increases in levels as it breaks down.

Which radon mitigation system is best?

The best radon mitigation system depends on your home's specific needs and foundation. There are certain measurements to follow and the ideal structure how it should be installed. You just need to make sure you hire a certified radon professional ensures the most effective solution for reducing radon levels. They know what's best.

Who pays for radon remediation?

The homeowner is responsible for paying for their radon mitigation systems. We recommend fixing any radon issue for yourself while you're still living in the home. When you're ready to sell, the radon issues will already be taken care of!

Will a radon mitigation system increase my electricity bill?

A properly installed radon mitigation system is designed to have minimal impact on your electricity bill. This has been proven a lot, reason why it's better for a professional to install it instead of your own. It typically consumes the same amount of energy as a small household appliance, like a light bulb.

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We serve the following areas

  • Agency
  • Barnes City
  • Batavia
  • Blakesburg
  • Bloomfield
  • Brooklyn
  • Cedar
  • Chelsea
  • Chillicothe
  • Clutier
  • Deep River
  • Delta
  • Dewar
  • Drakesville
  • Dunkerton
  • Dysart
  • Elberon
  • Eldon
  • Evansdale
  • Fairfield
  • Floris
  • Fremont
  • Gibson
  • Gilbertville
  • Guernsey
  • Harper
  • Hartwick
  • Hayesville
  • Hedrick
  • Keota
  • Keswick
  • Kirkville
  • La Porte City
  • Libertyville
  • Lockridge
  • Martinsburg
  • Ollie
  • Ottumwa
  • Packwood
  • Pulaski
  • Raymond
  • Richland
  • Rose Hill
  • Sigourney
  • South English
  • Thornburg
  • Vining
  • Waterloo
  • Webster
  • What Cheer
Our Locations:

Iowa Radon Defense
4175 NE 43rd Ct
Des Moines, IA 50317