Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Walterville, OR

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Walterville, OR?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Walterville, OR

*The Angi rating for Radon Detection And Reduction companies in Walterville, OR 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 Walterville, OR 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 June 23, 2026

Find Radon detection and reduction specialists in Walterville

Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.0(
72
)
Radon Gas - AbatementRadon Gas - Testing

Serving Walterville, OR and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

John's Waterproofing Co. is the premier waterproofing company serving in Oregon and southern Washington for almost 4 decades. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!\n\n

Encapsulation System
Before Encapsulation
Before Interior Drain System
After Interior Drain System
Finished basement

+38

Response time6 hrs
219 neighbors recently requested a quote
Recommended by93%of homeowners
Request Quote
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
3.9(
23
)
Radon Gas - Abatement

Serving Walterville, OR and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"You need to ask the technicians what to do and when regarding the re-test. The information we received was insufficient to know what to do afterwards and our re-test was delayed X 4 days because of lack of communication. Otherwise VERY Happy with the actual work and costs for the work."
Recommended by90%of homeowners
Request Quote
Environmental Testing & Training NorthWest
4.0(
1
)
Radon Gas - Testing

Serving Walterville, OR and surrounding areas

In business since 2011

Free estimates

Credit card accepted

We at Environmental Testing & Training NorthWest 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!

Response time12 hrs
Recommended by100%of homeowners
Request Quote
Avatar for All around Property Testing LLC
All around Property Testing LLC
New to Angi
Radon Gas - Testing

Serving Walterville, OR and surrounding areas

In business since 2021

Emergency services offered

Small jobs welcome

Veteran-owned and certified in mold, lead, water, and environmental property testing. We serve Cottage Grove and surrounding areas with fast EMSL lab results, affordable pricing, and reliable local service.

Request Quote
All Corners Home Inspections
New to Angi
Radon Gas - Testing

Serving Walterville, OR and surrounding areas

In business since 2014

Free estimates

Emergency services offered

All Corners Home Inspections is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time1 day
Request Quote
Radon Detection and Reduction questions, answered by experts

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

Installation typically takes 1-2 days, depending on the system and property layout.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

The Walterville, OR homeowners’ guide to radon detection and reduction services

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

See all articles