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

*The Angi rating for Radon Detection And Reduction companies in Seatac, 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 Seatac, 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 June 12, 2025

Find Radon detection and reduction specialists in Seatac

Avatar for 5 Microns Inc.
5 Microns Inc.
4.9(
74
)
Radon Gas - Testing

Serving Seatac, WA and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"Pascal was very prompt in communication and coordinating the testing. The results were provided next day and he answered all my questions. I recommend 5 Microns Inc and will use their services in the future."
Vinyl sheeting asbestos test
Wall asbestos test
Asbestos air test
Mold and moisture testing
Mold air test

+32

Response time3 hrs
Response rate98%
Recommended by100%of homeowners
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Avatar for The Home Private Investigator/Home P.I., LLC
The Home Private Investigator/Home P.I., LLC
4.7(
60
)
Radon Gas - Testing

Serving Seatac, WA and surrounding areas

Approved

In business since 2005

Emergency services offered

Credit card accepted

"A very good service by a very good guy. He was available to answer questions and exceeded my expectations. Highly recommend."
OUR WORK
OUR WORK
OUR WORK
Response time3 hrs
Recommended by94%of homeowners
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Avatar for BranDan Home Solutions
BranDan Home Solutions
5.0(
5
)
Radon Gas - AbatementRadon Gas - Testing

Serving Seatac, WA and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

"BranDan did a careful job with good attention to details. I will contact them again when needed in the future."
BranDan Home Solutions
7 neighbors recently requested a quote
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Avatar for Edgeline Restoration
Edgeline Restoration
4.9(
12
)
Radon Gas - Testing

Serving Seatac, WA and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Great, Colby did a great job and helped me understand the whole pricess as well as the insurance side so i was fully i formed the entire time"
Additional Photos
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Additional Photos

+23

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

Serving Seatac, WA and surrounding areas

In business since 2020

Free estimates

Offers commercial services

"My good friend recommended me Palm Construction on my roof replacement. I also contacted some other recommended roofing contractors and offer from Palm Construction was very acceptable. Lee and his crew started roof replacement soon after we signed a contract. Lee was very professional, honest and helpful. His crew kept working area clean as possible and they finished my roof quick and on time. The roof passed inspection and it looks great. I would highly recommend Palm Construction!"
Response time2 days
Recommended by90%of homeowners
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Avatar for Diversified Crawlspace Services
Diversified Crawlspace Services
4.5(
13
)
Radon Gas - AbatementRadon Gas - Testing

Serving Seatac, WA and surrounding areas

"RatSlab specializes in offering Crawl Space, Rat & Rodent Removal Services that are cost-effective, reliable and efficient in controlling premises area from rats and mice."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+61

Recommended by84%of homeowners
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Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
1.8(
4
)
Radon Gas - Abatement

Serving Seatac, 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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Showing 1-10 of 13
Radon Detection and Reduction questions, answered by experts

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

The Seatac, 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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