*The Angi rating for Radon Detection And Reduction companies in Redmond, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.
*The HomeAdvisor rating for Radon Detection And Reduction companies in Redmond, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.
Last update on February 06, 2026
Serving Redmond, WA and surrounding areas
Approved
In business since 2005
Emergency services offered
Credit card accepted
"A very good service by a very good guy. He was available to answer questions and exceeded my expectations. Highly recommend."
Serving Redmond, WA and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Great, Colby did a great job and helped me understand the whole pricess as well as the insurance side so i was fully i formed the entire time"
+23
Serving Redmond, WA and surrounding areas
In business since 1997
Free estimates
"James offered some suggestions regarding our home. I am doing as he suggested to see if the recommendations eliminates the air quality and concern there may be mold. He offered inside & outside advise for venting and reroofing."
Serving Redmond, WA and surrounding areas
In business since 2025
Free estimates
"Nathan was one of my students in a professional home inspection class. He was definitely at the top of the class. His knowledge of the technical side of homes and the home inspection industry was excellent. I would not hesitate to use his services at all! If you are involved in a property transaction or simply want to ensure you understand your home and make sure it’s safe, I highly recommend him!"
Serving Redmond, WA and surrounding areas
In business since 2003
Free estimates
Credit card accepted
Werner Consultant America, LLC will if possible evaluate and fix any environmental/hygienic problem including for example mold and toxicity problems in your home.
Serving Redmond, WA and surrounding areas
In business since 2020
Free estimates
Offers commercial services
"My good friend recommended me Palm Construction on my roof replacement. I also contacted some other recommended roofing contractors and offer from Palm Construction was very acceptable. Lee and his crew started roof replacement soon after we signed a contract. Lee was very professional, honest and helpful. His crew kept working area clean as possible and they finished my roof quick and on time. The roof passed inspection and it looks great. I would highly recommend Palm Construction!"
Serving Redmond, WA and surrounding areas
"We had a foot of water in our crawl space after the snow and 6 in. of rain from the December 2021 storms. I had called several companies to come out to take a look and give quotes. Ethan from diversified was the 3rd quote we received. Ethan explained the issue, explained what they would do to remedy it, and answered all my questions. He sent me the quote which was very resonable. BE SURE TO GET SEVERAL QUOTES. ONE COMPANY QUOTED US DOUBLE OF WHAT WE PAID DIVERSIFIED. They were able to get a team out two days later. The team was on time, professional, and did really good work. We ended up needing a sump pump due to ground water coming up. They applied a mold application and completed the work in a day. I highly recommend these guys and did my research prior to having them do the work. I am very impressed and happy we chose them."
+61
Serving Redmond, WA and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"The work was fine, I haven't retested yet."
Serving Redmond, WA and surrounding areas
In business since 2019
Free estimates
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
Serving Redmond, WA and surrounding areas
In business since 2025
Free estimates
Credit card accepted
"Esmeralda was really professional answered all the questions I had , removed popcorn ceiling from my bedrooms , would highly recommend All Pacific Northwest ?"
+3
From average costs to expert advice, get all the answers you need to get your job done.
The cost of a radon mitigation system in Seattle, WA, depends mostly on the type of system being installed. Use this guide to learn about your options.
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
