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Verified Reviews for Radon Detection And Reduction pros in Stanwood, WA

*The Angi rating for Radon Detection And Reduction companies in Stanwood, 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 Stanwood, 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 November 11, 2026

Top-Rated Radon detection and reduction specialists in Stanwood - Updated Nov 2026

Avatar for Element Environmental
Element Environmental
New to Angi
Radon Gas - AbatementRadon Gas - Testing

Serving Stanwood, WA and surrounding areas

Approved

Free estimates

Emergency services offered

Offers commercial services

Element provides a wide range of professional services in the areas of Environmental Consulting, Water Resource Evaluation, UXO Support, and Engineering Design. Element provides the personal attention and flexible decision making capabilities of a small business while providing the breadth of expertise and experience of a large firm.

2 neighbors recently requested a quote
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Avatar for Edgeline Restoration
Edgeline Restoration
4.9(
12
)
Radon Gas - Testing

Serving Stanwood, WA and surrounding areas

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!

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+23

Response time4 hrs
Response rate100%
1 neighbors recently requested a quote
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Palm Construction and Remodeling Inc.
4.2(
88
)
Radon Gas - AbatementRadon Gas - Testing

Serving Stanwood, WA and surrounding areas

In business since 2020

Free estimates

Offers commercial services

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

Response time2 days
Recommended by90%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
1.8(
4
)
Radon Gas - Abatement

Serving Stanwood, 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!

Recommended by50%of homeowners
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Avatar for All Pacific Northwest, LLC
All Pacific Northwest, LLC
5.0(
3
)
Radon Gas - Abatement

Serving Stanwood, WA and surrounding areas

In business since 2025

Free estimates

Credit card accepted

We’re a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

Carmelita
Carmelita
Carmelita
Carmelita
Carmelita

+3

Response time3 days
Response rate100%
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Radon Detection and Reduction FAQs, answered by experts

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

While DIY testing is possible, abatement generally requires professional installation to ensure efficacy and meet safety standards.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The Stanwood, WA 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.

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