Get matched with top radon detection and reduction specialists in Los Altos, CA
Top-rated radon detection and reduction specialists.

Need a pro for your radon detection and reduction project in Los Altos, CA?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Los Altos, CA

*The Angi rating for Radon Detection And Reduction companies in Los Altos, CA 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 Los Altos, CA 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 July 29, 2025

Find Radon detection and reduction specialists in Los Altos

Avatar for MG Remediation, Inc.
MG Remediation, Inc.
3.3(
8
)

Serving Los Altos, CA and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: Quick response

"Peter and his team at MG Remediation are professionals. They did everything they told me they would do and the radon levels dropped significantly. Great communication, too, which always matters."
Vapor Intrusion for VOC and Radon
Cleaning
Cleaning
Testing
Testing & Abatement

+4

Response time4 days
Recommended by80%of homeowners
Request Quote
Avatar for Standish Inspections
Standish Inspections
4.8(
9
)

Serving Los Altos, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"The person that came was fine. He just walked around and did the inspection. He also gave us some recommendations. The person was prompt, knowledgeable, and reasonably priced. He was very punctual."
Shingles
Gutters
Roofing
Recommended by100%of homeowners
Request Quote
Avatar for Fire & Water Damage Recovery
Fire & Water Damage Recovery
4.7(
69
)

Serving Los Altos, CA and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"The experience with Justin at Fire & Water Damage Recovery was excellent. They were referred by the plumbing company that serviced my sump pump. We still got 3 estimate, Justin's estimate was in the middle but I felt good with Justin based on our phone conversation and the referral so we went with this company. Justin did tell me that he might have estimated on the high side because he does not like to surprise the homeowners. What a surprise when I go the final invoice. The final invoice came in much lower and was very close or lower than the lowest estimate I got. Justin and his team also took pictures of how the place was before and after for me to see. They even took pictures of the pathway that they took to get to the crawl space to assure me that they kept the place clean when they got in and out. I was very satisified with Justin and his company."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+27

Recommended by88%of homeowners
Request Quote
Avatar for S & Y Corp
S & Y Corp
4.6(
18
)

Serving Los Altos, CA and surrounding areas

In business since 1991

Free estimates

Emergency services offered

"We needed to turn our home into a rental property.  We had started to work with another contractor.  Unfortunately, the contractor had our start date for a month after we needed the project completed.  I searched Angie's List and found S&Y Corporation.  They came to our house, within an hour after my first call and started the project the very next day.

S&Y Corporation is one of the most professional contractors that we have worked with. Their employees are skilled artisans. Our floors, walls and electrical work were a WOW, for us. I was so impressed with their service, that I wish we had found them sooner. I would hire them again, in a heart beat!. Mr. Young Ko takes pride in the work of his team and was good with follow up, before, during and after the projects. Great job!  I will hire S&Y again."
Before Picture
After Picture
Recommended by93%of homeowners
Request Quote
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.

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.

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

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 Los Altos, CA 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.

See all articles