Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Crescent City, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Crescent City, IL?

Select your specific project to find the pro for you.

Verified Reviews for Radon Detection And Reduction pros in Crescent City, IL

*The Angi rating for Radon Detection And Reduction companies in Crescent City, 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 Crescent City, 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 January 06, 2026

Find Radon detection and reduction specialists in Crescent City

Avatar for Healthy Homes LLC

Healthy Homes LLC

5.00(
6
)
•Approved Pro

Healthy Homes LLC

5.00(
6
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Healthy Homes is a mold inspection, testing, removal, and prevention company. We take care of mold issues, but more importantly, we focus on preventing mold from returning. The key to mold control is moisture control. Our team consists of experts in building science. We know what it takes to have a healthy home. Water and high humidity can cause your home to drop in value and it could literally make you sick, both mentally and physically. Our mission is to change the quality of life for our customers by turning their houses into HEALTHY HOMES.

"Great. Great job, communication, and service."

Sheryl S on March 2018

Healthy Homes is a mold inspection, testing, removal, and prevention company. We take care of mold issues, but more importantly, we focus on preventing mold from returning. The key to mold control is moisture control. Our team consists of experts in building science. We know what it takes to have a healthy home. Water and high humidity can cause your home to drop in value and it could literally make you sick, both mentally and physically. Our mission is to change the quality of life for our customers by turning their houses into HEALTHY HOMES.

"Great. Great job, communication, and service."

Sheryl S on March 2018

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

Avatar for Finest Home Inspection

Finest Home Inspection

5.00(
29
)

Finest Home Inspection

5.00(
29
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Jon and Jennifer Ellis launched Finest Home Inspection in 2016. Jon, who performs the inspections and writes the inspection reports, spent the prior 18 years building, maintaining, and inspecting custom homes. He has managed and overseen the work of the full array of sub-contractors, from electricians and plumbers to HVAC and roofers, ensuring the integrity of the building process, that home owners’ desires are met, and helping them understand the significance of the different options available to them. With an eye for detail and a love of building, Jon has the experience to understand the relationship of the different systems in your home and the critical points to watch for. While fluent in the language of the various trades, Jon is able to clearly explain the details of your home to those of us who may not be. He will use clear, concise terms that enable you to understand your home and what it needs as well as lots of pictures to bring your report to life. We pride ourselves in providing the highest level of service on all fronts. Hire FINEST, and know we are committed to supporting you as you make one of your very most significant purchasing decisions.

"Jon at Finest Home Inspection was great. He walked us through the inspection and his findings on site as well as answered our specific questions about the house. Our inspection report was provided the same day and the radon test results were provided as soon as they were available. He let us know what he wasn't able to check because there were tenants living in the house. He gave us his honest opinion on the house when we asked him. It can be difficult to assess the thoroughness of a home inspection, but now that we've been living in our home for a while, I am confident our home inspection was thorough. We haven't run into any issues that were not addressed in the home inspection. I would recommend Finest Home Inspection."

Jessica L on February 2023

Jon and Jennifer Ellis launched Finest Home Inspection in 2016. Jon, who performs the inspections and writes the inspection reports, spent the prior 18 years building, maintaining, and inspecting custom homes. He has managed and overseen the work of the full array of sub-contractors, from electricians and plumbers to HVAC and roofers, ensuring the integrity of the building process, that home owners’ desires are met, and helping them understand the significance of the different options available to them. With an eye for detail and a love of building, Jon has the experience to understand the relationship of the different systems in your home and the critical points to watch for. While fluent in the language of the various trades, Jon is able to clearly explain the details of your home to those of us who may not be. He will use clear, concise terms that enable you to understand your home and what it needs as well as lots of pictures to bring your report to life. We pride ourselves in providing the highest level of service on all fronts. Hire FINEST, and know we are committed to supporting you as you make one of your very most significant purchasing decisions.

"Jon at Finest Home Inspection was great. He walked us through the inspection and his findings on site as well as answered our specific questions about the house. Our inspection report was provided the same day and the radon test results were provided as soon as they were available. He let us know what he wasn't able to check because there were tenants living in the house. He gave us his honest opinion on the house when we asked him. It can be difficult to assess the thoroughness of a home inspection, but now that we've been living in our home for a while, I am confident our home inspection was thorough. We haven't run into any issues that were not addressed in the home inspection. I would recommend Finest Home Inspection."

Jessica L on February 2023

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

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

Radon Detection and Reduction questions, answered by experts

You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional. 

Mitigation reduces radon levels, protecting your health and complying with safety standards.

You should have a professional test for radon every two to five years. A good rule of thumb is to get testing done every five years if you’ve never had an issue before and every two years if you have. You may also want to schedule testing if you notice symptoms of radon exposure or if you do intermittent DIY radon testing and notice changes in your levels between tests. If you have an active radon monitor, you can schedule testing if you notice levels increasing over time.

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

Since radon typically comes out of the soil, it is most commonly found in the lower levels of a home. In houses with basements, that's a common location for radon. Homes built directly on the ground may have radon on the ground floors. Radon can be found on the upper floors of the home, but often in lower concentrations than in lower levels.

The Crescent City, 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.

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"