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*The Angi rating for Radon Detection And Reduction companies in Tolani Lakes, 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 Tolani Lakes, 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 June 28, 2025

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

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

Serving Tolani Lakes, 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%
2 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 Tolani Lakes, 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
Recommended by96%of homeowners
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121 PRO, LLC
5.0(
2
)
Radon Gas - Testing

Serving Tolani Lakes, 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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EnviroSystems AZ LLC
5.0(
3
)
Radon Gas - Testing

Serving Tolani Lakes, AZ and surrounding areas

In business since 1978

Free estimates

Emergency services offered

"Ask for Austin Baker. Austin returned my call within minutes, began testing in my house two hours later, and I had my laboratory certified test results 36 hours later. Austin is thorough, professional, knowledgeable, and affordable. Definitely five stars all around!"
Final Clearance Sampling
Abatement Oversight
Lab Work
Abatement Oversight
Land Survey

+8

Response time7 hrs
Response rate92%
Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

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.

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.

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.

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 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 Tolani Lakes, AZ homeowners’ guide to radon detection and reduction services

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