Top-rated radon gas testers.

Get matched with top radon gas testers in Granite Falls, 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 Granite Falls

Avatar for Edgeline Restoration
Edgeline Restoration
4.9(
12
)

Serving Granite Falls, WA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

At Edgeline Restoration LLC, we are your local experts in water, mold and fire damage restoration as well as indoor environmental testing. We serve all of Snohomish and King county. Call us today at (206) 355-8282 for more information!

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 Granite Falls, WA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"I'd give them an A+ if it were available. The specialists that worked on our system were prompt, respectful of our property, very skilled and wore masks as appropriate. They came out multiple times (over three months) to get the Radon level even lower than the contract required. Our initial Radon reports were around 3 pCu/L and the eventual test of the mitigation system was 0.8 pCu/L. We were very impressed with their professionalism and would suggest them to anyone without any reservations."
Recommended by99%of homeowners
Avatar for AMERICAN ENVIRONMENTAL CONSTRUCTION LLC
AMERICAN ENVIRONMENTAL CONSTRUCTION LLC
4.7(
101
)

Serving Granite Falls, WA and surrounding areas

In business since 2001

Free estimates

Warranties offered

"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."
Recommended by93%of homeowners
Avatar for National Property Inspections
National Property Inspections
5.0(
5
)

Serving Granite Falls, WA and surrounding areas

In business since 2015

Free estimates

Warranties offered

National Property Inspections prides itself on the quality of inspections provided. We inspect both residential and commercial properties. We've built an excellent reputation for customer satisfaction by providing thorough inspections in a timely manner, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

Recommended by100%of homeowners
HOMETEAM INSPECTION SERVICE
5.0(
2
)

Serving Granite Falls, WA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

.We provide Home and Pest Inspections in complete compliance and all guidelines as set by the State of Washington standards of practice. We are fully licensed, carry general liability as well as Errors and Omissions insurance and are members of NAHI and are AHIT certified. We provide narrative reports, with pictures, that are deliveded by email within 24 hours and a hard copy by mail if requested.

Recommended by100%of homeowners
Green Slate Landscaping Inc
4.9(
21
)

Serving Granite Falls, 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
Buyers Protection Group (BPG)
3.5(
85
)

Serving Granite Falls, WA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"We specifically requested Keith Cook as our inspector because he inspected a friend's home and had a high degree of attention to detail. I'm happy to report that he didn't let us down when conducting our inspection. He arrived early and began inspecting the exterior. He climbed onto the roof and even into the attic! He didn't miss a thing...no even loose or missing screws on household fixtures. Keith knows his stuff and takes the time to explain it to you. He's funny and very efficient...our inspection report was emailed less than 8 hrs after completion of the inspection. Additionally, a member of the company called me to report the results of the radon test immediately upon completion. This is an A+ company and Keith rocks!"
Recommended by61%of homeowners
Showing 1-10 of 18
FAQs for radon gas testing projects in Granite Falls, 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 Granite Falls, WA homeowners’ guide to radon gas testings

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