National Radon Defense Companies in Washington

Specialty Environmental
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!
John's Waterproofing
219 Airport Road
Silverton, OR 97381
12108 Mukilteo Speedway Suite A1 & A2
Mukilteo, WA 98275
SERVICE AREA:
Oregon: including Multnomah, Washington, Clackamas, Lane, and Marion counties. Washington: including Clark, Cowlitz, Klickitat, and Skamania counties.
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.

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

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.
  • full starfull starfull starfull starfull star
    By Wesley R.
    New York City, NY
    The services were as expected, thank you for the good work
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    Customer Review

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    By Wesley R.
    New York City, NY
    The services were as expected, thank you for the good work
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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.
  • full starfull starfull starfull starfull star
    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.
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    By Gary L.
    Terrabonne, OR
    Did a great job.
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    Customer Review

    full starfull starfull starfull starempty star
    By Gary L.
    Terrabonne, OR
    Did a great job.
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    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.
  • full starfull starfull starfull starfull star
    By Marti B.
    Welches, OR
    George was right on time, friendly and completed in good...
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    Customer Review

    full starfull starfull starfull starfull star
    By Marti B.
    Welches, OR
    George was right on time, friendly and completed in good time.

Testimonials

  • Elizabeth R.
    Albany, OR

    Customer Testimonial

    Elizabeth R.
    Albany, OR
  • Full crawlspace encapsulation in Waldport, OR Read Full Testimonial
    Mark A.
    Waldport, OR

    Customer Testimonial

    Mark A.
    Waldport, OR
    Enjoying the new clean and healthy crawlspace!
  • I cannot say enough good things about Kyle. He took over a bad situation for us and handled it in a very... Read Full Testimonial
    Tom B.
    Spokane, WA

    Customer Testimonial

    Tom B.
    Spokane, WA
    I cannot say enough good things about Kyle. He took over a bad situation for us and handled it in a very professional and kind way. He explained what he was doing and why he was doing it. He came on time and did everything to meet our schedule. He even came back when the insulation guys were here to make sure everything went well. I cannot imagine you have a more professional and important member of the team at Specialty. Thank you for getting him to help us; we understand he would normally have his crew do the "heavy lifting" but he did it with a smile on his face in a room that was close to 100 degrees. Great guy--amazing!!
  • I wanted to thank you for taking the time to visit my home in SE Portland recently to meet with the... Read Full Testimonial
    Nick V.
    Portland , OR

    Customer Testimonial

    Nick V.
    Portland , OR
    I wanted to thank you for taking the time to visit my home in SE Portland recently to meet with the contractors working on my remodel. I appreciate you making the trip and sharing information regarding your products with them. I am a big fan of your company and products. I never hesitate to refer others to your firm for there basement and crawspace waterproofing needs.
  • I never questioned who I was going to call to ensure this job was done perfectly. Read Full Testimonial
    Woody E.
    Portland , OR

    Customer Testimonial

    Woody E.
    Portland , OR
    John's Waterproofing came out and encapsulated my crawlspace two years ago. When I decided it was time to finish my basement, they were the only company I called. Throughout the process the crew has been very respectful, clean and thorough. They made sure that my entire basement was sealed off and covered in plastic so that they did not get dirt or mud anywhere in my basement during the process. Manuel answered my questions when I had them and did not mind when I popped my head in to check on their progress. I was very happy with the work they did. Now the space fits with the rest of my finished basement.
  • The “crew”, actually made us laugh, with their singing and chatting to one another. We have... Read Full Testimonial
    Paul and Rosemary W.
    Keizer, OR

    Customer Testimonial

    Paul and Rosemary W.
    Keizer, OR
    AJ & crew, Paul & I would like to thank you, for a pleasant and professional experience, doing our waterproofing. The “crew”, actually made us laugh, with their singing and chatting to one another. We have “never” experienced people enjoying their jobs, as your crew does! Or is their way, of keeping their sanity, in that dark hole!! Kudos to you and your crew for giving us, such, a great experience. We would recommend you “highly” Paul & Rosemary Willhite
  • I would be happy to give a recommendation. Read Full Testimonial
    Cari K.
    Portland, OR

    Customer Testimonial

    Cari K.
    Portland, OR
    I'm including this note of thanks because of the great service I received and the fine workers you employ. Everyone I had contact with was very courteous and helpful. Andy, Koa, and Kasey did a great job with a positive and friendly attitude, I would be happy to give a recommendation.
  • They left it looking like the grandkids could play in there! Read Full Testimonial
    Barb E.
    Portland, OR

    Customer Testimonial

    Barb E.
    Portland, OR
    We want to thank you and your crew for the intensive work put forth in our crawl space. The workers put in three long days of dirty, sweaty, claustrophobic work down there and left it looking like the grandkids could play in it! Ok, kidding there! We appreciated the care they took in shielding with heavy plastic the area around our crawl space entry in order to keep dirt and dust from our living area. And what may seem trite but was a plus to our ears one floor above them was that the men always seemed happy to be at their work. Ramon kept us informed of every step and was a real comfort to us when we had concerns about this or that. We can't praise him high enough. Thank you all!!!! We want to thank you and your crew for the intensive work put forth in our crawl space. The workers put in three long days of dirty, sweaty, claustrophobic work down there and left it looking like the grandkids could play in it! Ok, kidding there! We appreciated the care they took in shielding with heavy plastic the area around our crawl space entry in order to keep dirt and dust from our living area. And what may seem trite but was a plus to our ears one floor above them was that the men always seemed happy to be at their work. Ramon kept us informed of every step and was a real comfort to us when we had concerns about this or that. We can't praise him high enough. Thank you all!!!!
  • We first called TerraFirma but the salesman said we could dig out the entire exterior, add a membrane, drains... Read Full Testimonial
    Dan P.
    Salem, OR

    Customer Testimonial

    Dan P.
    Salem, OR
    We first called TerraFirma but the salesman said we could dig out the entire exterior, add a membrane, drains etc for about $24,000. When I pressed for other ideas he seemed unenthusiastic. I said I would think about it and he never contacted me again. We then tried another company who was at least amenable to other approaches and gave me a quote of $12,000 for a sump pump and interior perimeter drains. Then we called John's Waterproofing and Peter came out. Peter was awesome. He had a whole suite of things that could help out in the basement and really listened and discussed our options. We weren't going for a dead dry basement that we could finish, we just wanted to get it dry and lower the humidity. So Peter and I went through all the things and came up with a plan together. In the end, we had a sump pump, perimeter drains in the basement and crawlspace, clean space barrier throughout the crawl and bright space paneling on the walls of the basement to stop humidity coming in from the walls. We also had piping installed below ground outside in which to run the gutters out to the street. All of that for only $8000. Once agreed the crews came right on schedule and finished the work ahead of time. I've waited to give a review to see the system in action. For the past week, it has been raining steadily. However in our basement is nothing but dry dust. Description of work: Our house is at the low point along several blocks and so our half basement/half crawl have always had problems with water intrusion. When it's not raining the basement has been humid and damp feeling, when it's raining the basement has had puddles of standing water. That has also caused the house to feel damp. We needed to dry out the basement and run water from the roof away from the house.
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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.