Radon Services

Testing and Mitigation Systems

Radon Services

Testing and Mitigation Systems

Reducing Radon for more than 30 Years

We've Been Reducing Radon Gas for more than 30 Years
Fort Myers Radon Testing Mitigation 13300-56 S. Cleveland Ave., STE116, Fort Myers, FL 33907 239-653-7555 Image Of Owner

Experience Makes The Difference

Hello, I'm Gregg Zetzman. For more than 30 years, I have answered the call to reduce radon in homes and businesses. In fact, I have reduced deadly gases for more than 3000 clients! I have been invited many times to speak about radon as a guest speaker at business gatherings, radio programming as well as print news. Nothing beats experience!

Donna Summer lived in Florida. Did she die from Lung Cancer caused by Radon?

Licensed, Certified and Insured

Florida General Contractor (CGC) License  #CGC1507691

Florida Radon Mitigation Specialist Certified #R2506

Florida Radon Testing Certified #R2505

National Radon Safety Board member

InterNACHI Member




Using Quality Materials, Technique & Technology

Whether we are reducing radon in homes, condominiums, institutions, schools or commercial, we take pride in the materials we use.  Only quality materials and technology will go into our radon reducing systems.  Many techniques and materials used by unlicensed and unfortunately even some certified mitigation contractors fall short. In fact, some materials and techniques can cause other toxic issues


(ABOVE) Beware of contractors installing concealed radon systems through the air handler ductwork.  When too much humidity comes in through these type of concealed systems, the air handler may not be able to properly get rid of the access humidity. MOLD GROWS IN HUMIDITY!

Get a glimpse at what radon looks like. Now imagine yourself living in a home with high radon levels and breathing radon into your lungs and into your body every day.

Specializing in Sub-Slab Radon Mitigation



Active Sub-slab Radon Mitigation AKA-SSD (Preferred Method)

The most common approach used is known as "Active Sub-Slab Depressurization" or (ASSD). This method involves drawing the radon gas (and other pollutants) from soils that are directly adjacent to the structure. In order for this method to be effective, a sealed barrier between the home and the soil must be available to divert the radon gas away from the home.

Fresh Air Systems DO NOT REMOVE RADON, they only dilute the radon.



The Florida Radon Research Program Recommends Sub-Slab Depressurization Method in Florida:



Hintenlang, D. AND C. Rossler. RECOMMENDED SUB-SLAB DEPRESSURIZATION SYSTEMS DESIGN STANDARD OF THE FLORIDA RADON RESEARCH PROGRAM. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/8-91/208 (NTIS 92-105626), 1991.


The report recommends sub-slab depressurization systems design criteria to the State of Florida's Department of Community Affairs for their building code for radon resistant houses. Numerous details are set forth in the full report. Primary criteria include: (1) the operating soil depressurization system shall maintain under the entire building a static pressure less than the outdoor air static pressure; (2) suction shall be provided by a fan rated for continuous operation and having thermal overload protection with automatic reset features; (3) vent piping shall have a minimum slope of 1/8-in./ft (1.04 cm/m) in order to drain any condensation back to the soil beneath the soil gas retarder; and (4) suction points shall be equally distributed a follows: a maximum of 1300 sq ft (120.8 sq m) per suction point, each suction point located not less than 6 ft (1.3 m) nor more than 18 ft (5.5 m) from the perimeter, and multiple suction points shall be located within 36 ft (11.0m) of each other. documentation is presented in support of the recommendations.





Energy Recovery Ventilation

In a home with an inaccessible crawl space, limited slab accessibility, apartments, condominiums and other scenarios where active soil depressurization (sub-slab) isn't practical, an "Energy Recovery  Ventilation"  (ERV) can be used to treat radon problems. Energy Recovery Ventilation (ERV) reduces radon levels by adding fresh air and creating positive air pressure. Negative air pressure in lower levels of the home creates a force that pulls soil gases, including radon, inside.  By reducing the negative air pressure, Energy Recovery Ventilation can reduce radon levels while delivering fresh air into the home. These two features make the ERV system a great solution for reducing radon and other contaminants in the home's air.


Repair and Replacement of inproper or non-working systems

There have been many varied systems installed in the state of Florida over the years. Some systems were installed by State Certified individuals and companies and many were not.  Often times residents do not know that their system is within EPA code and Florida statutory radon system design regulations. Whether a radon system is installed to EPA protocol or Florida Statute, these systems need to be checked and radon measured to ensure its efficiency. EPA recommends re-testing for radon every two years.

What determines if a permit is needed for radon mitigation?

Some Florida municipalities require a contractor to file a permit for radon mitigation and some do not.  It is very imprtant that a radon mitigation company holds a contractor license.  Municipalities who require permit only allow licensed contractors to apply for permit. BEWARE- many FL certified radon mitigation contractors ARE NOT CERTIFIED CONTRACTORS.  Therefor, these contractors DO NOT AND CANNOT file for permits.  Any time a municipality requires a permit, the contractor must abide by it! Our CGC licenses allows us to file permits in all Florida municipalities when required


Sale of a homes can  be jeopardized if a radon contractor fails to reduce radon to under EPA levels?

Over the years, I have worked with many realtors, sellers and buyers. I have often heard nightmarish stories  about how contractors promised to reduce radon and failed.  Home-buyers can often walk away from a deal, leaving the seller with a lost sale and a radon system investment that is not reducing dangerous levels.

Single, Multi-family, Institutional & Commercial Method

Our radon mitigation services include all buildings throughout Florida. We are uniquely licensed to perform many jobs other radon mitigation companies cannot and are not permitted to do. For instance, having CGC licensing allows my company to work in almost any type of building and contract with any Florida contractor needed to install a proper radon system. Other licensed radon contractors  who do not have a CGC license are very limited and sometimes cannot legally contract all of the sub-contractors needed to complete a successful and legal radon reducing mitigation project. We are also AARST Certified in multi-family measurement and mitigation

Multi-family, Commercial, Schools and Institutional Buildings involve extra protocol to be followed

Our training is not limited to minimum measurement and mitigation standards.  Our team members have been received special training in multifamily, commercial, institutional, schools training.  We believe this training is absolutely nessacary to serve our clients looking to hire a contractor for these services. Measurment and mitigation are often more technical then single family homes. In fact, some federal and state agencies require certain protocol to be followed for HUD , FHA, Agriculture and other departments.

Continuing to learn, apply and educate new and innovative techinques developing in the radon testing and removal field.

We think it is important to keep up to date with learning new and innovative ways to best serve our clients.  Throughout the year, we attend seminars, expos and round table conversations regarding the many aspects of radon detection and removal techniques and products. Technology is always changing and improving.

Some Homes can be more difficult to reduce radon

IMany homes built after the 1940's have drain tiles. We can utilize these drain tiles in assisting the removal of radon. However, even homes with drain tiles can be difficult to reduce for an average mitigator with less experience. Older homes without drain tiles can be reduced, as I have reduced all homes below EPA reccomended levels, but I will often get the call to reduce radon in homes other mitigators cannot. We are proud as a company to succeed 100% .


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