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

*The Angi rating for Radon Detection And Reduction companies in Sandwich, 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 Sandwich, 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 18, 2026

Find Radon detection and reduction specialists in Sandwich

Avatar for PROFESSIONAL RADON SYSTEMS INC

PROFESSIONAL RADON SYSTEMS INC

4.95(
80
)
•Approved Pro

PROFESSIONAL RADON SYSTEMS INC

4.95(
80
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
38 years of experience

****** WE ARE NOT A RADON TESTER***** We have been servicing the greater Chicagoland area since 1988. Our state certified technicians perform all radon mitigation installations. We offer hassle-free, prompt, professional residential and commercial radon mitigation services. ******* PLEASE NOTE!!!****** The coupon that is available on our listing is only valid for Angi members. If you are taking advantage of this savings opportunity, the coupon must be printed and presented along with your payment. NO EXCEPTIONS!

"Fix my problem and awesome customer service "

Luis C on October 2025

****** WE ARE NOT A RADON TESTER***** We have been servicing the greater Chicagoland area since 1988. Our state certified technicians perform all radon mitigation installations. We offer hassle-free, prompt, professional residential and commercial radon mitigation services. ******* PLEASE NOTE!!!****** The coupon that is available on our listing is only valid for Angi members. If you are taking advantage of this savings opportunity, the coupon must be printed and presented along with your payment. NO EXCEPTIONS!

"Fix my problem and awesome customer service "

Luis C on October 2025

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 VSI Radon Reduction Corp.

VSI Radon Reduction Corp.

4.85(
82
)

VSI Radon Reduction Corp.

4.85(
82
)
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

VSI Radon Reduction Corp. has two locations to serve the greater Chicagoland and Rockford area. Providing radon reduction since 1987. State licensed installer at every job. We install and service sump pumps and backup pumps as well.

"Great service!"

Norman C on March 2025

VSI Radon Reduction Corp. has two locations to serve the greater Chicagoland and Rockford area. Providing radon reduction since 1987. State licensed installer at every job. We install and service sump pumps and backup pumps as well.

"Great service!"

Norman C on March 2025

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

Avatar for Trinity Electrical and Radon Mitigation

Trinity Electrical and Radon Mitigation

5.00(
6
)

Trinity Electrical and Radon Mitigation

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are fully licensed, insured and bonded. We have 3 service vehicles fully lettered and clean ready to complete the tasks at hand. all of our employees will arrive in uniform and wear shoe covers before entering your home or business.

We are fully licensed, insured and bonded. We have 3 service vehicles fully lettered and clean ready to complete the tasks at hand. all of our employees will arrive in uniform and wear shoe covers before entering your home or business.

Avatar for The Housedoctors, Inc.

The Housedoctors, Inc.

5.00(
1
)

The Housedoctors, Inc.

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Inspection Company with over 5,000 inspections completed. State Licensed, ASHI Certified with E&O and Liability insurance. Excellent references and reviews. Practicing the lost art of customer service. Covering Chicagoland and most suburbs. Inspection report delivered within 24 hours including photos and summary. Please visit our website at housedoctorsinc.com or call for additional info.

Inspection Company with over 5,000 inspections completed. State Licensed, ASHI Certified with E&O and Liability insurance. Excellent references and reviews. Practicing the lost art of customer service. Covering Chicagoland and most suburbs. Inspection report delivered within 24 hours including photos and summary. Please visit our website at housedoctorsinc.com or call for additional info.

Heritage Radon Mitigation Services, Inc.

5.00(
1
)

Heritage Radon Mitigation Services, Inc.

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are licensed by the State of Illinois. At Heritage Radon Mitigation Services, Inc. our clients receive quality service. Radon Mitigation systems are installed in accordance with the State of Illinois Mitigation Standards 32 Illinois Administrative Code 422, as amended. Whether it means answering a question or installing a mitigation system, let us provide the solution. We have the knowledge and experience to efficiently correct all of your radon issues.

We are licensed by the State of Illinois. At Heritage Radon Mitigation Services, Inc. our clients receive quality service. Radon Mitigation systems are installed in accordance with the State of Illinois Mitigation Standards 32 Illinois Administrative Code 422, as amended. Whether it means answering a question or installing a mitigation system, let us provide the solution. We have the knowledge and experience to efficiently correct all of your radon issues.

Showing 1-10 of 11
Radon Detection and Reduction questions, answered by experts

DIY kits are available for basic testing. Professional services provide comprehensive results and recommendations.

A DIY kit can lessen the sting that comes with paying for a professional assessment, but these comprehensive tests are true lifesavers. Inspectors are more likely to catch all of the pollutants and hazards in your air. Plus, you’ll still need a professional to verify and act on your DIY test results. 

Some kits don’t include tests for certain air pollutants or only detect their presence, but not their levels (i.e., mold spores). If you’re willing to shell out money for a DIY kit, it’s usually better to stretch your budget slightly higher for a more detailed assessment.

Using an air purifier in your home or basement isn't an effective way to reduce or mitigate radon. Radon is an inert gas, meaning it doesn't react with other chemicals and can't be filtered the way particulates can be. While an air purifier can help improve your indoor air quality in other ways, don't rely on it to reduce radon.

To determine whether you have radon in your home, you must run a test. Radon gas has no odor or color, so you won’t notice a concentration of radon. You could purchase a DIY test at a local hardware store, but it may not deliver completely trustworthy results. The best way to test and receive accurate results is to hire a local radon detection specialist.

Testing typically costs between $150 and $500, depending on the method used and the number of areas tested.

The Sandwich, 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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