*The Angi rating for Radon Detection And Reduction companies in Olympia, 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 Olympia, 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 August 26, 2026
Serving Olympia, WA and surrounding areas
Approved
In business since 2019
Free estimates
Small jobs welcome
"Pascal was very prompt in communication and coordinating the testing. The results were provided next day and he answered all my questions. I recommend 5 Microns Inc and will use their services in the future."
+32
Serving Olympia, WA and surrounding areas
Approved
In business since 2005
Emergency services offered
Credit card accepted
"Highly recommend hiring! Virgil was responsive, friendly, timely, very reasonable, and he sure knows his stuff! And how can you go wrong with a company name like Home PI! Would absolutely recommend working with Virgil to do testing."
Serving Olympia, WA and surrounding areas
In business since 1997
Free estimates
"They were very honest & told us we didn't have black mold and needed a dehumidifier. I would very certainly recommend them for their honesty"
Serving Olympia, WA and surrounding areas
In business since 2020
Free estimates
Offers commercial services
"We hired Palm Construction to completely replaced our old roof and they did a fantastic job at very reasonable price. Lee and his crew were great to work with, they were quick, professional and they kept working area clean as possible. There were no any issues and roof replacement was finished in a timely manner. The quality and accuracy of their work is excellent and our new roof is awesome! Highly recommended contractor!!"
Serving Olympia, WA and surrounding areas
In business since 1988
Free estimates
Credit card accepted
SWAT Environmental is the nation's largest radon abatement engineer. Our experienced staff has corrected radon problems for over 60,000 customers since 1988 with 100% success!
Serving Olympia, WA and surrounding areas
In business since 1992
Free estimates
Emergency services offered
"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."
+2
Serving Olympia, WA and surrounding areas
In business since 2014
Free estimates
Emergency services offered
Professional handyman services as well as Residential and Commercial property maintenance.\n\nWe specialize in room additions and full home remodels along with residential and commercial property electrical, plumbing, carpentry, and interior and exterior tenant improvements, re-keying, painting, landscaping, and all other property maintenance and construction services.\n\nProperty managers: we specialize in local handyman work and property maintenance needs.\n\nhttp://www.handymanintacoma.com/
From average costs to expert advice, get all the answers you need to get your job done.
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.
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
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.
