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Verified Reviews for Radon Detection And Reduction pros in Green Valley, AZ

*The Angi rating for Radon Detection And Reduction companies in Green Valley, AZ 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 Green Valley, AZ 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 March 21, 2026

Find Radon detection and reduction specialists in Green Valley

Avatar for Affordable Radon Southwest
Affordable Radon Southwest
4.7(
356
)
Radon Gas - Abatement

Serving Green Valley, AZ and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"A potential buyer for a house I was selling had a Radon Test done. It scored a 13.7! Affordable Radon came out and gave me a bid for two systems, one for each side of the house. 3 weeks later the score is 1.1! They did a great job and got rid of the radon from beneath the slab!"
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System
Radon System

+12

Response time1 day
Response rate95%
5 neighbors recently requested a quote
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Avatar for Arizona Indoor Air Quality and Environmental Testing, LLC
Arizona Indoor Air Quality and Environmental Testing, LLC
4.3(
213
)
Radon Gas - Testing

Serving Green Valley, AZ and surrounding areas

Approved

In business since 1999

Emergency services offered

Small jobs welcome

"Tracy was punctual and expedited our test kit via FED X and had our test results back within 48 hours."
Mold Inspection
Mold Surface Swab Test
Homeowner was doing a remodel project and discover
Homeowner was doing a remodel project and discover
Mold Inspection

+1

Response time2 hrs
4 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for Advanced Drying Inc
Advanced Drying Inc
4.7(
30
)
Radon Gas - Testing

Serving Green Valley, AZ and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"I could not have asked for a better mold inspection and remediation than Dustin and his team.  Very professional, knowledge and explained everything thoroughly.  My home is now my safe haven after a successfully remediation with Advanced Drying. Don't hesitate for a second to call.

"
Response time7 hrs
Recommended by95%of homeowners
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TC Contracting
New to Angi
Radon Gas - AbatementRadon Gas - Testing

Serving Green Valley, AZ and surrounding areas

In business since 1992

Free estimates

Credit card accepted

TC Contracting provides a professional remodeling service with client satisfaction as our number one value. We will be perceived as a company that is affordable, professional, trustworthy, and timely. Tom is also a nationally certified Radon Technician, licensed for radon testing in residential and commercial buildings including Multi Family type dwellings.\n

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Radon Detection and Reduction questions, answered by experts

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

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 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 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.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

The Green Valley, AZ 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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