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

*The Angi rating for Radon Detection And Reduction companies in Philomath, 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 Philomath, 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 May 05, 2026

Find Radon detection and reduction specialists in Philomath

Avatar for Alpha Environmental Services Inc
Alpha Environmental Services Inc
4.7(
134
)

Serving Philomath, OR and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"From initial inspection to mitigation was about a week. Technician were punctual and finished within time estimated."
Heating Oil Tank
Radon Reduction System
Removal of Underground Tank
Response time1 day
Recommended by85%of homeowners
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Avatar for Nordic Service Group, LLC
Nordic Service Group, LLC
5.0(
4
)

Serving Philomath, OR and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Chris was fantastic to talk to about what he checks for during the inspection and what i should expect to see on his report. Chris was on time, incredibly thorough and detailed. I highly recommend him to anyone looking for a great home inspector."
Response time3 hrs
Response rate92%
35 neighbors recently requested a quote
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Avatar for John's Waterproofing Co.
John's Waterproofing Co.
4.0(
71
)

Serving Philomath, OR and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"This work crew of Lupe, Waldo, and Rene did an OUTSTANDING job; this is hard work, these (3) dedicated hombres did an incredible job for us. We are so grateful for these three men. I easily recommend this crew to you, very reliable, honest, trustworthy and friendly. Best in the Business. Muchas gracias amigos!!! We love these guys!"
Encapsulation System
Before Encapsulation
Before Interior Drain System
After Interior Drain System
Finished basement

+38

Response time6 hrs
205 neighbors recently requested a quote
Recommended by93%of homeowners
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Environmental Testing & Training NorthWest
4.0(
1
)

Serving Philomath, OR and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"The company rep collected site samples quickly ... in and out in about 20 minutes. And, the company turned the report around in two days. The service was a pricy, mostly due to the fixed call-out fee. The cost per sample was higher than one other instance that I know of but not unreasonable."
Response time12 hrs
Recommended by100%of homeowners
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Fordaz Construction
New to Angi

Serving Philomath, OR and surrounding areas

In business since 2023

Free estimates

Credit card accepted

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

Response time5 hrs
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Radon Detection and Reduction questions, answered by experts

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

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

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 lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

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 Philomath, 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.

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