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Radon Mitigation System Installation & Testing

EnviroHome specializes in commercial, residential, and multifamily high-rise radon testing and mitigation throughout Orlando creating individualized project plans tailored by our team of radon certified experts.

Call 888-810-2228 to learn more about the only Florida based company trusted by the Florida Department of Health to train radon professionals!

Orlando Radon Levels by Zip Code

The Florida Health department has created a great database, linked here, of radon test results as reported by certified radon businesses and facilities per Florida Statute 404.056. This tool allows you to see the percentage of radon tests that returned greater than a 4 pCi/L result.  The EPA recommends homes and properties be mitigated if the level of radon is above 4 pCi/L.

Below are some of the zip codes in Orange County over 10% that we were able to acquire. Last checked: July 17th 2022:

Buildings Measured
Percentage >= 4 pCi/l

Per the Florida Department of Health: This radon data does not represent a scientific or statistical survey; therefore, it should be interpreted with caution. The data provides an indication of the radon potential within a zip code if a large enough and properly distributed number of buildings have been tested and reported for the area. This data cannot be used to predict the radon level for existing or new construction. Structural features, construction details, and ventilation operations differ from building to building and greatly influence radon concentration. Structures within the same zip code may have dramatically different indoor radon levels due to these differences. Inferring indoor radon levels for untested buildings based on indoor radon data from tested buildings is not possible.

One of the state's most popular vacation destinations, when you think about Orlando, most likely theme parks, golf courses, and rollercoasters come to mind. However, the city outside of these tourist destinations is home to the largest urban center in Central Florida. Residents enjoy a bustling art scene, sports venues, and nightlife as well as a healthy job market if you can get used to the humidity. Orlando also has a relatively low cost of living when compared to other large cities in the state which is in part due to the low median cost of a home in the area. 

Overall, Orlando has a relatively low risk from ground source radon as shown below, they are in Zone 3. However, today we are finding highly elevated radon levels in many Orlando concrete building structures.

Radon Levels Orlando

Test results clearly show that the radon comes from the building materials and specifically from the poured concrete. Up until recently it was believed that there were only two sources of radon exposure – radon gas ground source seepage, and off-gassing of radon impacted groundwater. In the low ground source areas such as Orlando, it was generally assumed that radon was not a major concern and not one that would warrant mandatory testing associated real estate transactions, etc.

The problem is most significant in Orlando condominium, apartments, and high-rise structures where large volumes of formed in-place concrete are used and where large concrete surface areas are present in close proximity to building occupants living in the individual units.  

EnviroHome specializes in testing and mitigation of radon emanating from building materials. We provide testing, diagnosis, and full scale mitigation plans overseen by certified radon experts, licensed professional engineers, and licensed general contractors to ensure the radon levels in your property are at healthy levels.

What Type of Testing is Right For Me?

The right type of testing depends on your situation. Our team will work with you to design a specific testing plan that ensures you receive comprehensive and clear results when you need them. Common testing situations are listed below. 

  • Testing before a real estate transaction - The EPA recommends that all properties be tested for radon prior to purchase no matter what radon zone the property is in.

  • Diagnostic Testing - The goal of diagnostic testing is to not only to determine if your home or property has elevated levels of radon, but to also pinpoint the cause of the elevated levels.

  • Pre and Post Mitigation Testing - Radon testing must be completed prior to mitigation in order to design a proper mitigation project fit for the property's specific issues. Additionally, testing must be done after any mitigation system is installed to ensure it is reducing the radon levels below the EPA's recommended action level.

How Long Does Testing Take?

How long testing takes depends on what stage of discovery or radon mitigation you are in. For real estate transactions in Naples or time sensitive situations, EnviroHome can deploy a radon inspector to perform short term testing, typically 48 hours. 


If the diagnostic testing or short-term testing shows elevated levels of radon in your home/building, it may be best to undergo long-term testing which runs for 91 + days.  The general guidelines are that Short-term test results between 4 to 8 pCi/L should be confirmed with a Long-term test of 91 days or more.  With long-term testing, seasonal weather issues, which can cause elevated radon results, are evened out. Additionally short-term results can often be influenced by house utilization (such as opening windows or doors) which is not an issue with long term testing. With long term testing, you gain a clear understanding of what levels of radon are present within the home and if you need to mitigate radon.

Radon Testing Before Mitigation?

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What if I Need Mitigation?

If, after the appropriate testing, your property is found to have elevated levels of radon, our radon mitigation team will create a specific plan to address the source of the radon. Factors that impact the mitigation plan include the levels of radon in the property and the source. 

Building Materials Emanation

The most common type of radon source issue in the Orlando area is radon emanating from the building materials commonly used, chief among them, concrete. This radon source is mitigated through mechanical ventilation. Using propriety methods, EnviroHome is able to combine incredible cost effective methods to increase the rate of ventilation in the home which dilutes the radon below the EPA's recommended action level. Additionally, these methods improve indoor air quality overall making the home a much healthier environment. 

Ground Source Radon

The most common type of radon mitigation practice for ground source, or radon present in the soil underneath a property's foundation, is Active Soil Depressurization. This system works to create positive pressure inside your home so the radon in the ground soil under the foundation does not enter the home and is instead vented out to a location where it cannot harm individuals. Additionally, our team of mitigation experts might seal any entry pathways in your home that may be present to aid in the reduction of radon entering the home.