Top-rated radon gas testers.

Get matched with top radon gas testers in Gaston, OR

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 Gaston

Avatar for Alpha Environmental Services Inc
Alpha Environmental Services Inc
4.7(
134
)

Serving Gaston, OR and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"From initial inspection to mitigation was about a week. Technician were punctual and finished within time estimated."
Heating Oil Tank
Radon Reduction System
Removal of Underground Tank
Response time1 day
Response rate100%
Recommended by85%of homeowners
Request Quote
Avatar for Nordic Service Group, LLC
Nordic Service Group, LLC
5.0(
4
)

Serving Gaston, OR and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Chris was fantastic to talk to about what he checks for during the inspection and what i should expect to see on his report. Chris was on time, incredibly thorough and detailed. I highly recommend him to anyone looking for a great home inspector."
Response time3 hrs
Response rate93%
37 neighbors recently requested a quote
Request Quote
Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.0(
71
)

Serving Gaston, OR and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"You will need make sure everything is explained and understand what is included as maintenance."
Encapsulation System
Before Encapsulation
Before Interior Drain System
After Interior Drain System
Finished basement

+38

Response time6 hrs
227 neighbors recently requested a quote
Recommended by93%of homeowners
Request Quote
Avatar for Sigman Home Inspection, LLC
Sigman Home Inspection, LLC
4.8(
23
)

Serving Gaston, OR and surrounding areas

In business since 2015

Credit card accepted

"We had a 48 hour radon gas test...Sigman showed up on time, installed the teat equipment, explained the test, returned 48 hours later, again on time, to get the equipment and sent us our results by email within a few hours,"
Crawlspace
Sun Nuclear 1028 Radon Monitor
Response time3 hrs
Recommended by100%of homeowners
Request Quote
Avatar for Propertyexam
Propertyexam
4.6(
18
)

Serving Gaston, OR and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"Excellent Scott was very thorough with his inspection he pointed out things that needed attention that I hadn't even noticed I had a lot of questions and he took the time out to answer them I understand how the 203k loan works now having him in your corner is an asset and I look forward to working with him in the future"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Recommended by100%of homeowners
Request Quote
Avatar for Oregon Restoration Co.
Oregon Restoration Co.
4.7(
154
)

Serving Gaston, OR and surrounding areas

In business since 2008

Emergency services offered

Warranties offered

"Ambrosio was friendly and kind, made a thorough search through the attic and rooms of the house to evaluate the roof leak and resulting mold, and gave a detailed estimate of all the work that would be involved in remediation. Didn't charge for gas or estimate. We since haven't been able to get in contact for next steps, but appreciated the timely and thorough response for our initial request for evaluation."
Professional mold mitigation in progress. We tackle mold issues at the source to protect both your home and your health.
Mold removal in action — we ensure your home is safe, clean, and free from harmful contaminants.
Water damage containment setup in progress. We carefully isolate affected areas to protect the rest of your home while we work.
Expert craftsmanship in kitchen restoration — we ensure a seamless transformation from damage to a beautifully finished space.
Using the most advanced drying equipment, we address water damage efficiently to protect your home

+9

Recommended by95%of homeowners
Request Quote
Showing 1-10 of 16
FAQs for radon gas testing projects in Gaston, OR

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 Gaston, OR homeowners’ guide to radon gas testings

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

See all articles