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Verified Reviews for Radon Detection And Reduction pros in Mazon, IL

*The Angi rating for Radon Detection And Reduction companies in Mazon, IL 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 Mazon, IL 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 November 15, 2025

Find Radon detection and reduction specialists in Mazon

Avatar for John T Long Healthier Environment

John T Long Healthier Environment

5.00(
5
)

John T Long Healthier Environment

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

John Long has been chartered member of the National Organization of Remediators and Mold Inspectors since 2006. He is an expert in in-home water and air quality. You can't be healthy living in a sick home: healthy air, healthy water, healthy family. Endorsed by doctors and healthcare practitioners as the most comprehensive testing systems identifying potential environmental toxins that contribute to unresolved health issues. Learn more at pureairpurewater.com/johnlong

"He was very professional and knowledgeable. Mr. Long was able to answer all my questions and informed me of issues I didn't know about effective air quality. I'm very pleased with the service and I recommend him; especially with today's concerns about our air and water."

Shirley C on April 2020

John Long has been chartered member of the National Organization of Remediators and Mold Inspectors since 2006. He is an expert in in-home water and air quality. You can't be healthy living in a sick home: healthy air, healthy water, healthy family. Endorsed by doctors and healthcare practitioners as the most comprehensive testing systems identifying potential environmental toxins that contribute to unresolved health issues. Learn more at pureairpurewater.com/johnlong

"He was very professional and knowledgeable. Mr. Long was able to answer all my questions and informed me of issues I didn't know about effective air quality. I'm very pleased with the service and I recommend him; especially with today's concerns about our air and water."

Shirley C on April 2020

E C Siding & Windows

4.88(
17
)

E C Siding & Windows

4.88(
17
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
"They had done a good job on my skylight. So I hired them to replace my grandsons roof. Showed up immediately. Started the job a day or two later. Finished it in a day and a half. Reasonable rate. Another excellent job. .Thank you, EC ROOFING ."

Paula G on December 2020

"They had done a good job on my skylight. So I hired them to replace my grandsons roof. Showed up immediately. Started the job a day or two later. Finished it in a day and a half. Reasonable rate. Another excellent job. .Thank you, EC ROOFING ."

Paula G on December 2020

Avatar for RadoVent Illinois LLC

RadoVent Illinois LLC

4.96(
68
)

RadoVent Illinois LLC

4.96(
68
)
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

RadoVent Illinois llc is dedicated to installing top performing radon mitigation systems that block radon gas before it enters the home. We have installed thousands of radon mitigation systems in residential homes, office buildings, apartments and government buildings. Our courteous team of licensed radon remediation technicians go the extra mile to ensure your 100% satisfaction.

"Did a fantastic job. We are extremely pleased. Very clean and professional installation. Our Radon levels went from 11.5 to 0.4."

Rick W on September 2023

RadoVent Illinois llc is dedicated to installing top performing radon mitigation systems that block radon gas before it enters the home. We have installed thousands of radon mitigation systems in residential homes, office buildings, apartments and government buildings. Our courteous team of licensed radon remediation technicians go the extra mile to ensure your 100% satisfaction.

"Did a fantastic job. We are extremely pleased. Very clean and professional installation. Our Radon levels went from 11.5 to 0.4."

Rick W on September 2023

Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

Radon Detection and Reduction questions, answered by experts

A professional indoor air quality inspection takes anywhere from one to three hours, depending on the size of your home and the number of necessary samples. After the test, the specialist will discuss the findings, but you won’t get a full written report for 2 to 10 days, though you can ask your pro to expedite the process, if needed. 

Avoid opening windows and keep doors closed during testing to obtain accurate readings.

A radon test has no effect on humans—only the radon in the air does. The test does not redistribute the radon that is already present so yes, it’s safe to be around the testing kit even if it isn’t safe to be in the room itself. The test absorbs and measures the radon, but doesn't absorb enough of it to make the room any safer.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

Services test for allergens, mold, VOCs, and carbon monoxide levels to ensure a healthy indoor environment.

The Mazon, IL 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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