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Verified Reviews for Radon Detection And Reduction pros in Williams, AZ

*The Angi rating for Radon Detection And Reduction companies in Williams, 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 Williams, 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 September 14, 2024

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

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

Serving Williams, 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%
1 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 Williams, 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
1 neighbors recently requested a quote
Recommended by96%of homeowners
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121 PRO, LLC
5.0(
2
)
Radon Gas - Testing

Serving Williams, AZ and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

121 PRO, is committed to excellence 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.

Response time20 mins
Recommended by100%of homeowners
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Avatar for 1-800 Water Damage of Prescott & North Scottsdale
1-800 Water Damage of Prescott & North Scottsdale
5.0(
5
)
Radon Gas - Testing

Serving Williams, AZ and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"Fantastic. They were very quick to respond, set up testing for mold in air, and then ultimately remove the source of mold. Highly recommended. My home was tested before and after work to confirm that mold has all been removed and we are all safe."
Air Scrubber
Floor Protection
Personal Protection Equipment
Personal Protection Equipment
Completed Mitigation

+14

Response time7 hrs
Recommended by66%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. 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 action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or 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.

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 Williams, 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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