Top-rated radon gas testers.

Get matched with top radon gas testers in Woodinville, WA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Woodinville

Avatar for The Home Private Investigator/Home P.I., LLC
The Home Private Investigator/Home P.I., LLC
4.8(
56
)

Serving Woodinville, WA and surrounding areas

Angi Approved

In business since 2005

Emergency services offered

Credit card accepted

"If you have or even think you have mold/fungus issues in your home, Virgil Pelton is the man to call. Not only is he knowledgeable, and professional, he will hold your hand and help you to resolve your issue. I used his recommend remedial company and they were fabulous. He helped me every step of the way from the time I called him to when all was done and no more mold/fungus!! He is honest and reasonable. Please, anyone out there who may have mold issue PLEASE contact Virgil. You want the air tested before and after remedial work. To make sure there is NO more mold spores in the air. He answers any and all questions. And explains everything in detail. He is a very calm guy and he prayed for wisdom before work. And prayed after the final visit. Wow!! He is God sent for me. We dealt with this mold issue since 10/2020. We should have called him first and saved a lot of headache and money$$$."
OUR WORK
OUR WORK
OUR WORK
Response time3 hrs
Recommended by94%of homeowners
Avatar for Edgeline Restoration
Edgeline Restoration
4.9(
12
)

Serving Woodinville, WA and surrounding areas

Angi Approved

In business since 2019

Free estimates

Emergency services offered

"Exceptionally knowledgeable professionals with a service mindset. My office and storage building was flooded from a burst pipe last winter (2021/2022). I called up Affordable Restoration and they helped me through the whole process. They also referred me to a fantastic public adjuster who took care of the whole claim for me. I was impressed on how knowledgeable the Affordable Restoration crew was on not only the flood aspect but also on how to work best with my insurance company. They took the time to educate me throughout the whole process on water, mold, mitigation, restoration and the claim process. After my initial meeting with them, I felt like I was an expert on these topics. This gave me a lot of confidence in working with my insurance claim. It was a breath of fresh air to deal with a contractor that actually cares about you and takes the time to listen and address all of your concerns. Their crews did a great job. They always showed up on time, constantly monitored the site conditions and left the site cleaner than they found it. I'm confident that my building was restored properly and is safe for future use. I would highly recommend working with them."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+23

Response time1 day
Recommended by100%of homeowners
Avatar for Cascade Radon Inc
Cascade Radon Inc
4.9(
157
)

Serving Woodinville, WA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Excellent from beginning to end. Very professional outfit from initial visit, quote, scheduling, work, followup. Price was reasonable, work quality went above and beyond, and radon levels dropped well below even the contractual level."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by99%of homeowners
Avatar for AMERICAN ENVIRONMENTAL CONSTRUCTION LLC
AMERICAN ENVIRONMENTAL CONSTRUCTION LLC
4.7(
101
)

Serving Woodinville, WA and surrounding areas

In business since 2001

Free estimates

Credit card accepted

"Excellent company. Iwas freaked out and they calmed me down (call them before you lose sleep!) It's not as bad as it seems. Showed up right on time. Gave an excellent consult that didn't feel rushed nor about just making money (instead.. doing it right!). The actual remediation (all the dry wall in the bathroom, cutting new electrical holes, etc was done to perfection with a clean air test and no debris. They respected HOA rules and they got all this scheduled after permits. It was a seamless stress-free process and ironically it was also the most affordable."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+15

Recommended by93%of homeowners
Avatar for Service Pros & Asbestos
Service Pros & Asbestos
5.0(
16
)

Serving Woodinville, WA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Fantastic service! We requested assistance on Angi on Friday morning, and the sample collection of drywall started late in the afternoon. We received a negative test result on Tuesday afternoon."
Initial Demo
Initial area of the water damage
Hardwood Flooring Sales and Installation Project
Water Damage Restoration
Infrared Camera of the area affected by the water damage.

+40

Recommended by93%of homeowners
Green Slate Landscaping Inc
4.9(
21
)

Serving Woodinville, WA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

We are a full service landscape construction and maintenance company. Specializing in full landscape maintenance and renovations. We offer mow, maintenance, and total yard care packages. We work in both commercial and residential projects. We are extremely capabale and equipped for just about any project you might have. Please call or email us for your free estimate.

Recommended by95%of homeowners
Showing 1-10 of 25
FAQs for radon gas testing projects in Woodinville, WA

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Woodinville, WA homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.