We Are 
Guardian Environmental

Guardian Environmental specializes in radon mitigation as well as testing for radon, mold, water quality, and lead-paint. No matter what your home needs, we are ready to help you. As a homeowner, you want a team of professionals you can trust. You can count on Guardian Environmental.

We pride ourselves not just on the good job we do, but also on the service we give our clients. With our teams combined years of experience, we go above and beyond to make sure your home is safe and any problem is fixed. With Guardian Environmental, you are never left in the dark. Our transparent estimates and testing ensure that you always know what to expect from us. With our advanced testing techniques for radon, mold, and more, we will help you feel safe in your home again.

Our Values


Our top priority is you and your home. We will do everything in our power to exceed your expectations and get the job done as quickly as possible. Whatever you need from us, we're here to help. With FREE estimates for radon mitigation and more, you will know from the start exactly what you will be getting from our team here at Guardian Environmental and what the cost of repairs and the mitigation system will be. We'll take you through the process and deliver on our promise of bringing your radon levels down. Even if it means taking longer than we initially expected, the job will get done with little stress for you.


We know how important the integrity of your home is to you; that's why everyone here at Guardian Environmental acts with integrity in the work we do. We are here to serve you and your home, not ourselves or anyone else. We will never try to upsell services to you unnecessarily and we will always be honest about the problems in your home and what the solutions are. Our equipment is all state-of-the-art and the data collected is managed by a third-party software. That means the numbers you see are 100% accurate every time. You can trust us to have your best interests in mind all the time.


Our goal at Guardian Environmental is to be as transparent as possible. And not only that, but we believe that it is our duty to you to make sure you know and understand every aspect of the process. You will know what you need and what you're getting. We will let you know honestly what's going on in your house and include you in all decision-making. We also have our sights set on being an educational thought leader in the radon world. We believe in the work we do and want to share our success with everyone else, too. We're here to educate any willing listener on why we install our systems the way we do, what to look for in your current system, and how to know if it's installed correctly.

By the Numbers



We performed radon level tests on 477 homes in 2020. 142 of those homes had elevated levels of radon, and need mitigation.


cause of lung cancer among non-smokers

Radon is the #1 cause of lung cancer among non-smokers. It is the 2nd leading cause overall.


Packs of Cigarettes per day

Living in a home with a radon level of 4.0 pCi/L (the EPA mitigation threshold) is like getting 200 chest x-rays a year. A level of 20 pCi/L is like smoking 2 packs of cigarettes A DAY.


National average cost

The national average cost of a mitigation system is $1,200. The annual operating cost of a system that runs 24/7/365 is about $150.

Meet the Team

We rely on our team of experts to get every job done as efficiently as possible. These professionals are not only well trained and ready to put in the hours to help us succeed, but they also hold our values of service, integrity, and education close to their hearts. Every one of our team members is like family, which is why it is so easy to take care of your home like it's one of ours. Meet the team members that make Guardian Environmental better every day they're on the job.
Guardian Enviormental - Staff Profile Image Eric Gentry-5

Eric Gentry

I attended high school in western North Carolina. From there, I did 2 years of Bible school at Moody Bible Institute before joining the USAF in 1990. I completed my BS in Business Management in 2011. Though I’m not from KY, its been home to my wife and our 2 sons since we married in 1996. My wife and I are avid runners and we’re both very involved in our church.
Guardian Enviormental  - Todd Keane


Todd grew up in southern Indiana before attending Johnson University in Knoxville. He and his wife, Angela, have four children. Todd enjoys spending time with his family, exercising, and cheering for the Louisville Cardinals.
Guardian Enviormental - Eric Johnson


Eric is a local Louisville native. He went to Eastern High School and played baseball for Spalding University from 2009-2012. He and his wife Leah have been married for going on 3 years now and they recently welcomed their new son, Lennox into the world in June. They have an English Mastiff named Atlas and a French bulldog named Fitz. Eric's hobbies are wood working, grilling/smoking on the weekends, fitness and diet (I’m looking to get my CPT in the next year). He loves dating his wife and traveling together internationally together.
Guardian Enviormental  - Alex Burke


Alex Burke

Alex graduated from Eastern High School and moved on to play baseball at Olney Central College and Southeastern Illinois college. I have three siblings consisting of and older brother and sister and a twin brother. Expecting a child in August. My hobbies include hunting, fishing, archery, working out, playing guitar and singing.
Join Our Team


  • Outstanding customer service every step of the way. A quick and efficient estimate with an on time install and great communication throughout. If you need a radon mitigation system you can’t go wrong with Eric and the team at Guardian Environmental.
    - James, 2/21
  • Great Team. I'm fully satisfied with the service they gave me. I recommend to everyone.
    - Sandip, 1/21
  • The team was efficient, accessible and professional.
    - Jennifer, 10/20
  • Eric was great. Stuck to his word and got the job done in a timely manner.

    Very professional and knowledgeable about his craft.
    - Greg, 11/20

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