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Best radon detection and reduction specialists near Rancho Cordova, CA

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Top-Rated Radon detection and reduction specialists in Rancho Cordova - Updated Nov 2026

Avatar for MG Remediation, Inc.
MG Remediation, Inc.
3.3(
8
)
Radon Gas - Abatement

Serving Rancho Cordova, 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
Curtis Roberts Mold Inspection
4.5(
175
)
Radon Gas - Testing

Serving Rancho Cordova, CA and surrounding areas

In business since 2004

Free estimates

Credit card accepted

"Curtis was quick to respond, showed up the next day on time, and was in and out in very little time. I even got my results the same day which was amazing. This is a rental property I had him test, and as they say, time is money. And having the testing & results that quickly with a letter stating it was clear of mold to cover me legally was exactly what I needed."
Under Kitchen Sink
Bathroom Cabinet
Response time3 hrs
Recommended by95%of homeowners
Avatar for Standish Inspections
Standish Inspections
4.8(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Rancho Cordova, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"I had recently had my home inspected and was concerned about mold and what to do about it. I called Mr Standish because I had just used him for my home inspection, and he was again able to do the mold testing right away, and got back the results to me within a few days. It was helpful to have him answer questions about the test results, and the problem was minor, and something that did not require any major work(thank goodness!)Mr Standish is very knowledgeable about his work, and is honest, which I truely appreciate."
Shingles
Gutters
Roofing
Recommended by100%of homeowners
Bona Fide Property Inspections
New to Angi
Radon Gas - Testing

Serving Rancho Cordova, CA and surrounding areas

Small jobs welcome

Credit card accepted

Offers commercial services

At Bona Fide Property Inspections, we believe that every property deserves a thorough and honest evaluation. Founded by licensed professional engineer Kirk LuMaye and construction industry professional Jeremy Karr, our company offers in-depth home inspections rooted in over a decade of forensic engineering, fire investigation and building systems expertise. We serve buyers, sellers, and homeowners with detailed, easy-to-understand reports that highlight what matters most—so you can make confident decisions with peace of mind. Whether you're purchasing your first home or managing an investment property, you can count on Bona Fide Property Inspections for integrity, precision, and professionalism on every inspection.

Avatar for Motherlode Comprehensive Inspections
Motherlode Comprehensive Inspections
New to Angi
Radon Gas - Testing

Serving Rancho Cordova, CA and surrounding areas

In business since 2021

Free estimates

Credit card accepted

Motherlode Comprehensive Inspections is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business. Call us today! Veteran Discounts Motherloadcomprehensiveinspections.com \n

Response time3 hrs
Radon Detection and Reduction FAQs, answered by experts

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

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.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

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.

The Rancho Cordova, 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.