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*The Angi rating for Radon Detection And Reduction companies in Sultan, 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 Sultan, 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 January 30, 2025

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Palm Construction and Remodeling Inc.
4.2(
88
)

Serving Sultan, WA and surrounding areas

In business since 2020

Free estimates

Offers commercial services

"Palm Construction recently replaced roof on my house and it was a great experience to work with Lee and his well organized team from Palm Construction. They did excellent job and my roof passed inspection with no issues. The quality of work and materials is excellent and my new roof looks fantastic. Also my whole house looks mush better now. Thanks!"
Response time2 days
Recommended by90%of homeowners
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Avatar for All Pacific Northwest, LLC
All Pacific Northwest, LLC
5.0(
3
)

Serving Sultan, WA and surrounding areas

In business since 2025

Free estimates

Credit card accepted

"I had a great experience with All Pacific Northwest LLC. They came to remove the vinyl from my bathroom and were punctual and very professional from start to finish. The team communicated clearly and respectfully, explaining each step of the process before starting the work. They were also very kind and courteous throughout. I highly recommend their services for their quality, reliability, and excellent customer service."
Carmelita
Carmelita
Carmelita
Carmelita
Carmelita

+3

Response time2 days
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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.

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 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.

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 cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

The Sultan, 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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