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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 Washington

695 N Legacy Ridge Dr #200
Liberty Lake, WA 99019
Did you know radon is the second leading cause of cancer in the U.S.? That is why Specialty Environmental provides reliable and effective radon testing, abatement, and other indoor air quality services. They proudly serve Washington and Idaho homeowners in Liberty Lake, Spokane Valley, Post Falls, and nearby. Schedule a radon testing and free mitigation estimate today!
View company profile for reviews, awards, before & after photos, and more.
219 Airport Road
Silverton, OR 97381
SERVICE AREA:
Oregon: including Multnomah, Washington, Clackamas, Lane, and Marion counties. Washington: including Clark, Cowlitz, Klickitat, and Skamania counties.
View company profile for reviews, awards, before & after photos, and more.

Test your Washington home for radon

Radon levels in Washington vary, but you have a right to know your home's level of this toxic gas. According to the Washington State Department of Health, radon is the largest source of radiation for almost everyone in the state.

As an odorless, tasteless, colorless gas, radon cannot be traced by the human senses. It can, however, be detected by a professional radon test and can then be mitigated and reduced to a healthy level.

It's every Washington homeowner's dream to maintain a healthy, safe home, and there's no reason your home should be anything but that!

Each home in Washington is different, and every home has a different radon level. Be sure to contact the radon contractors at NRD today to schedule your home inspection and radon mitigation system installation.

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

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    By Sharon S.
    Portland, OR
    When Jace came to our home to give us a bid, I felt that he...
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    Customer Review

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    By Sharon S.
    Portland, OR
    When Jace came to our home to give us a bid, I felt that he was very knowledgeable. He got our estimate to us quickly, with options that we ended up using. Delphino's crew did a great job. He consulted me on the time that worked best for our schedule for the 2 day job. They were very considerate during their time in our home.
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    By Sue D.
    Salem, OR
    Although I said I would hire you again, I hope that I don't...
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    Customer Review

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    By Sue D.
    Salem, OR
    Although I said I would hire you again, I hope that I don't have too. :)
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    By Iva Q.
    Molalla, OR
    We were very impressed with how committed John's was with...
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    Customer Review

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    By Iva Q.
    Molalla, OR
    We were very impressed with how committed John's was with doing a very thorough job. They went above and beyond the job and our crawl space has never looked better. Great team of guys. We would highly recommend this installation crew to anyone with water issues in a crawlspace. I was impressed by the clean up job and their commitment to doing a top quality work.
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    By Kelly C.
    Molalla, Or 97038, OR
    Fast contact, ability to complete work right away and the...
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    Customer Review

    full starfull starfull starfull starfull star
    By Kelly C.
    Molalla, Or 97038, OR
    Fast contact, ability to complete work right away and the lowest price quote.
  • full starfull starfull starfull starfull star
    By Steven H.
    Portland, OR
    Fast, professional, helpful. These guys did a great job in...
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    Customer Review

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    By Steven H.
    Portland, OR
    Fast, professional, helpful. These guys did a great job in half the expected time.
  • full starfull starfull starfull starfull star
    By Wesley R.
    New York City, NY
    The services were as expected, thank you for the good work
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Wesley R.
    New York City, NY
    The services were as expected, thank you for the good work
  • full starfull starfull starfull starhalf star
    By George B.
    Bend, OR
    Jake presented a good plan, which avoided problems that...
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    Customer Review

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    By George B.
    Bend, OR
    Jake presented a good plan, which avoided problems that certainly would have occurred with the plan presented by your competition. I took careful notice of the reviews on Angie's List, and call some of the references, which were supportive. Finally, I chose Johns as a company that had been in business for some time and had extensive experience installing the basement waterproofing system. The guarantee was an extremely important factor in my decision, and John's track record suggests that it will remain in business and stand by the guarantee should problems occur. This was the best part of the project. Delfino and his crew (Francisco, Aaron, Ceasar) worked incredibly hard, were polite and considerate, and provided what appears to be a good installation. I give them my strongest recommendation. How they managed to hand carry 6 yards of broken concrete up out of that basement in the time they did is beyond me. John's employees spoke highly of the company, and the benefits offered. It sounds like a well run business. Please note that the system was installed in Central Oregon at our second home on the Deschutes River, where we are dealing with a high water table issue in summer. As of this writing, the water table is nearing its summer level, the sump pumps are working, and the basement/crawl space is dry.
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    By Gary L.
    Terrabonne, OR
    Did a great job.
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    Customer Review

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    By Gary L.
    Terrabonne, OR
    Did a great job.
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    By Mike B.
    North Bonneville, WA
    The only problem we had was a lack of communication in a...
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    Customer Review

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    By Mike B.
    North Bonneville, WA
    The only problem we had was a lack of communication in a few instances. Otherwise everyone from the office to the actual crews were friendly and professional. Cleanup after the daily jobs was excellent. I do wish they would have offered to come back after 30 days to make sure everything was working properly.

Featured Washington Cities:

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Recent job requests for radon mitigation in WA:

Project Location: Omak, WA 98841

Comment: Not feeling well. Generally feel sick. Breathing issues.

Project Location: Washougal, WA 98671

Comment: A home close to me is being tested so I wanted to check.