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  • Affordable solutions
  • Guaranteed radon reduction
  • Quiet, reliable, right-sized fans
  • Systems for basements
  • System maintenance and service
  • Interior and exterior installation options

National Radon Defense Companies in Missouri

11084 Gravois Industrial Ct
St. Louis, MO 63128
Proper Environmental is your local go-to for radon testing and radon mitigation throughout Missouri, including St. Louis, St. Charles, O' Fallon, Chesterfield, Ballwin, Florissant, St. Peters, Maryland Heights, and nearby.
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1881 E 1450 Rd
Lawrence, KS 66044
Are you looking to protect your home from the dangers of radon? Green Factor Insulation is your trusted provider of radon inspection, testing, and mitigation services in Lawrence, Topeka, Tecumseh, and other cities throughout Kansas.
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1744 N 120th St
Omaha, NE 68154
Radon Defense Midwest is your experienced and professional radon testing and mitigation contractor serving Omaha, La Vista, Gretna, Elkhorn, Sioux City, Lincoln, Grand Island, Kearney & nearby Nebraska.
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Stay informed about radon exposure in Missouri

There's a reason that Missouri is known as the "Show Me State" - its residents are known for being skeptical and seeking out proof before accepting belief. As a homeowner, you have a right to be informed about the health and condition of your home. Unfortunately, when it comes to radon gas, it's not so simple to find visible proof because radon is invisible, odorless, and tasteless.

The good news? The presence of radon gas in your MO home can be discovered with a radon test. Highly trained radon contractors from National Radon Defense can determine whether your home has high radon levels and install a cutting-edge radon mitigation system if necessary.

Reliable radon testing and radon mitigation services

Although you may not be able to detect it with any of your human senses, the radon professionals at National Radon Defense can not only inspect your home's radon levels but also provide solutions for maintaining healthy indoor air in your Missouri home. You deserve to get the facts so that you can take necessary action to protect yourself and your family from the dangers of radon exposure.

We Provide:
  • Radon testing
  • Radon mitigation systems
  • Multi-family radon testing & mitigation
  • Vapor intrusion mitigation
  • Indoor air quality services
You Receive:
  • A healthy home environment
  • Clean indoor air
  • Protection for you and your family
  • Safe radon levels
  • Peace of mind
Although no homeowner wants to increase cancer risks for family members, many people neglect to test their homes for radon, an invisible, odorless, cancer-causing gas that emanates from soil and rocks. Contacting a radon mitigation specialist to perform a radon test, or conducting your own test with a DIY radon test kit is the first step in protecting your family from hazardous levels of radon gas.

Customer Reviews

  • full starfull starfull starfull starfull star
    By Andrew A.
    Des Moines, IA
    Good so far! System is running fine. Pretty seamless...
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    Customer Review

    full starfull starfull starfull starfull star
    By Andrew A.
    Des Moines, IA
    Good so far! System is running fine. Pretty seamless install. They were very helpful and communicative about changes, okayed first, cleaned up well, and answered all my questions.
  • full starfull starfull starfull starfull star
    By Joan M.
    Ankeny, IA
    Good, all good, yes we'd refer you.
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    Customer Review

    full starfull starfull starfull starfull star
    By Joan M.
    Ankeny, IA
    Good, all good, yes we'd refer you.
  • full starfull starfull starfull starfull star
    By Devon M.
    West Des Moines, IA
    Everything was great! The crew treated us well, were very...
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    Customer Review

    full starfull starfull starfull starfull star
    By Devon M.
    West Des Moines, IA
    Everything was great! The crew treated us well, were very friendly, and there was little to no destruction.
  • full starfull starfull starfull starfull star
    By James R.
    Waukee, IA
    Our levels dropped 60% in 14 hours! We are now at a 3.1...
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    Customer Review

    full starfull starfull starfull starfull star
    By James R.
    Waukee, IA
    Our levels dropped 60% in 14 hours! We are now at a 3.1 pCi/L down from 8 pCi/L - much more than I thought it would be. Did a good job, professional, couldn't ask for better guys.
  • full starfull starfull starfull starfull star
    By Kristi Z.
    Webster City, IA
    They did a good job. They cleaned up well.
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    Customer Review

    full starfull starfull starfull starfull star
    By Kristi Z.
    Webster City, IA
    They did a good job. They cleaned up well.
  • full starfull starfull starfull starfull star
    By Hayward D.
    Adel, IA
    The system is looking pretty good. Everything did go very...
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    Customer Review

    full starfull starfull starfull starfull star
    By Hayward D.
    Adel, IA
    The system is looking pretty good. Everything did go very smoothly and we appreciate that. Both Dustin and Andrew were just fine to work with.
  • full starfull starfull starfull starfull star
    By Becky N.
    Creston, IA
    They kept us informed, were careful, cleaned up, explained...
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    Customer Review

    full starfull starfull starfull starfull star
    By Becky N.
    Creston, IA
    They kept us informed, were careful, cleaned up, explained everything, did great.
  • full starfull starfull starfull starfull star
    By Madeline F.
    Lenox, IA
    They cleaned up everything! I've already referred!
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Madeline F.
    Lenox, IA
    They cleaned up everything! I've already referred!
  • full starfull starfull starfull starfull star
    By Mary M.
    Manson, IA
    Did a great job!
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Mary M.
    Manson, IA
    Did a great job!
Click to see why people hire us

Recent job requests for radon mitigation in MO:

Project Location: Saint Louis, MO 63125

Comment: Like to have a Randon test of my home.

Project Location: Saint Peters, MO 63376

Comment: I think that I maybe have radon in my home

Project Location: Lake Saint Louis, MO 63367

Comment: Just had inspection Radon level is at 5

Project Location: Richmond, MO 64085

Comment: Neighbors house is selling and they got a radon test. It came back positive.

Project Location: Lawson, MO 64062

Comment: Want prices for Indoor Air Quality systems. & possibly Radon mitigation system.

Project Location: Lees Summit, MO 64082

Comment: Would like to have my home tested for Radon.

Project Location: Kansas City, MO 64055

Comment: Failed radon test

Project Location: Kearney, MO 64060

Comment: We did a radon test in our basement and it is reading at a level of 10

Project Location: Independence, MO 64052

Comment: Trying to buy a house and the radon test came back 4.7

Project Location: Kansas City, MO 64114

Comment: Failed radon test

Project Location: Kansas City, MO 64151

Comment: Most of my neighbors have mitigation systems. My husband works in basement. Has a new cough. Been in home for about a year.