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Verified Reviews for Radon Detection And Reduction pros in Lewiston, ID

*The Angi rating for Radon Detection And Reduction companies in Lewiston, ID 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 Lewiston, ID 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 April 16, 2026

Find Radon detection and reduction specialists in Lewiston

Avatar for Advanced Radon Technologies
Advanced Radon Technologies
4.5(
42
)

Serving Lewiston, ID and surrounding areas

In business since 1971

Free estimates

Warranties offered

"Dave first off cares about his customers health and well being. He is interested in solving your Radon issue and making sure the work is high quality. He pulls proper permitting for electrical and his support team is awesome. The other Radon company that was used did not meet specific standards in doing Radon migitgation work. Do your homework and read reviews before hiring a Radon company and check certifications: https://nrpp.info/. Dave takes his profession seriously and has a tremendous background in this work. I highly recommend Advanced Radon Technologies."
Residential Systems
Residential Systems
Residential Systems
Residential Systems
Residential Systems

+11

Recommended by100%of homeowners
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Avatar for K&K Consultants Home Inspections & More
K&K Consultants Home Inspections & More
4.9(
8
)

Serving Lewiston, ID and surrounding areas

In business since 1999

Free estimates

Offers commercial services

"Same day appointment, very knowledgeable and thorough. Cares about costumers and takes the time to explain the inspection results and answer questions with honesty. I can can assure that this company will not rip you off. I highly recommend!!!!"
At a home inspection
inspecting plumbing
Inspecting a garage
We go everywhere we can fit
Operating bathroom fixtures

+4

Response time7 hrs
Recommended by100%of homeowners
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Avatar for Healthy Home Environmental Services
Healthy Home Environmental Services
New to Angi

Serving Lewiston, ID and surrounding areas

In business since 1995

Emergency services offered

Credit card accepted

At Healthy Home Environmental Services, we love families and understand that you want the best air for them to breathe. We test for mold, asbestos, radon, and are now certified for legionella. We also do remediation work. That means, we fix the problem for you! We are the best in the business and the most affordable. Our reputation speaks for itself, not just here but in our home town of Seattle. Our staff are experts in what causes poor indoor air quality, and how to fix it. Sometimes, it's something you can do yourself with some guidance from us. We look forward to helping you solve your mold, water, weird smells; kind of problems. Our work in attic mold and remediation is 100% guaranteed for LIFE. We are also experts for businesses and are equipped to handle large scale jobs. We even do hoarding jobs. Give us a call today to speak with an expert or to schedule an appointment. We'd love to hear from you.

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Radon Detection and Reduction questions, answered by experts

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 natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

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.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

The Lewiston, ID 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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