Top-rated radon detection and reduction specialists.

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

There are 3 highly-rated local radon detection and reduction specialists.

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

Select your specific project to find the pro for you.

Find Radon detection and reduction specialists in Cortland

Avatar for AdvantaClean of Northwest Chicagoland

AdvantaClean of Northwest Chicagoland

555 Plate Drive
4.97(
110
)
•Approved Pro

AdvantaClean of Northwest Chicagoland

555 Plate Drive
4.97(
110
)
•Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
78 local quotes requested

AdvantaClean of Northwest Chicagoland is locally owned and operated by JT and Marie Maier. Because your satisfaction is our top priority, we promise to provide you with the best service experience possible. We have a team of caring, industry-trained and certified professionals ready to address your needs. Whether responding to emergency water damage or mold or moisture intrusion, we ensure that the air you breathe is clean and healthy. We look forward to meeting you!

"Yes, the team was wonderful. They were here from 7:00am until 4:30pm. They did everything that they said they would do - cleaned and moved contents of the attic to a different part of the house, removed excess attic insulation, and removed all the mold. They even vacuumed the carpet in the bedroom where the access to the attic was after they were done. The team took the time to answer our questions and explain precautions."

Yale R on May 2025

AdvantaClean of Northwest Chicagoland is locally owned and operated by JT and Marie Maier. Because your satisfaction is our top priority, we promise to provide you with the best service experience possible. We have a team of caring, industry-trained and certified professionals ready to address your needs. Whether responding to emergency water damage or mold or moisture intrusion, we ensure that the air you breathe is clean and healthy. We look forward to meeting you!

"Yes, the team was wonderful. They were here from 7:00am until 4:30pm. They did everything that they said they would do - cleaned and moved contents of the attic to a different part of the house, removed excess attic insulation, and removed all the mold. They even vacuumed the carpet in the bedroom where the access to the attic was after they were done. The team took the time to answer our questions and explain precautions."

Yale R on May 2025

Avatar for PROFESSIONAL RADON SYSTEMS INC

PROFESSIONAL RADON SYSTEMS INC

10212 S Mandel St
4.84(
86
)
•Approved Pro

PROFESSIONAL RADON SYSTEMS INC

10212 S Mandel St
4.84(
86
)
•Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
30 local quotes requested

****** 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!

"Work completed as expected"

Jim S on December 2024

****** 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!

"Work completed as expected"

Jim S on December 2024

Avatar for Environmental Services Corp

Environmental Services Corp

3951 Granite Court
5.00(
49
)
•Approved Pro

Environmental Services Corp

3951 Granite Court
5.00(
49
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
285 local quotes requested

We specialize in Asbestos Testing, Asbestos Removal, Mold Mitigation, Demolition, concrete Epoxy Flooring, Flood Restoration, Cleaning services, and general home repairs. Contact us for a free estimate. With 20 years of experience, we stand out Keeping Your Space Safe.

"Marcos was friendly and fast, and flexible in scheduling. He and his crew did a great job for us in removing asbestos tiles from our basement flooring so we could have interior drain tiling installed. In the process, they also discovered some mold, which they were able to deal with at the same time. He came with a large crew, so they finished a large job very quickly. The space was well cleaned afterwards, and we received the necessary clearances. Highly recommend."

Kirsty C on June 2025

We specialize in Asbestos Testing, Asbestos Removal, Mold Mitigation, Demolition, concrete Epoxy Flooring, Flood Restoration, Cleaning services, and general home repairs. Contact us for a free estimate. With 20 years of experience, we stand out Keeping Your Space Safe.

"Marcos was friendly and fast, and flexible in scheduling. He and his crew did a great job for us in removing asbestos tiles from our basement flooring so we could have interior drain tiling installed. In the process, they also discovered some mold, which they were able to deal with at the same time. He came with a large crew, so they finished a large job very quickly. The space was well cleaned afterwards, and we received the necessary clearances. Highly recommend."

Kirsty C on June 2025

Full Circle Home Inspections

253 Brookhaven Trl
No reviews yet

Full Circle Home Inspections

253 Brookhaven Trl
No reviews yet
3 years of experience

Residential Home Inspections and radon testing. Before i became a home inspector I built houses for 15+ years. I decided to open this small family owned business because I find joy in helping people understand their huge investment in buying a house.

Residential Home Inspections and radon testing. Before i became a home inspector I built houses for 15+ years. I decided to open this small family owned business because I find joy in helping people understand their huge investment in buying a house.

COVERING YOUR ASSETS INSPECTIONS

4220 Pepper Dr
No reviews yet

COVERING YOUR ASSETS INSPECTIONS

4220 Pepper Dr
No reviews yet

WE PROVIDE HOME OWNERS WITH A COMPLETE, PROMPT AND PROFESSIONAL HOME INSPECTION. WE ALSO OFFER MOLD TESTING, RADON TESTING AND THERMAL IMAGING. WE ARE LICENSED IN THE STATE OF ILLINOIS. WE ARE A OWNER OPERATED COMPANY AND HAVE BEEN IN THIS LINE OF WORK FOR OVER TEN YEARS.

WE PROVIDE HOME OWNERS WITH A COMPLETE, PROMPT AND PROFESSIONAL HOME INSPECTION. WE ALSO OFFER MOLD TESTING, RADON TESTING AND THERMAL IMAGING. WE ARE LICENSED IN THE STATE OF ILLINOIS. WE ARE A OWNER OPERATED COMPANY AND HAVE BEEN IN THIS LINE OF WORK FOR OVER TEN YEARS.

The Housedoctors, Inc.

P.O. Box 59026
5.00(
1
)

The Housedoctors, Inc.

P.O. Box 59026
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.

Radon Reduction Technologies

2205 S Perryville Road #131
4.83(
6
)

Radon Reduction Technologies

2205 S Perryville Road #131
4.83(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Radon Detection & Reduction

"Installed radon mitigation system in basement. Pros: 1) reduced overall radon levels by about 75% 2) they did the work in extreme cold temps 3) done in about 4 hours Cons: 1) They arrived late (although they did call to let me know) 2) they did not wear boot covers or put down any floor protector when walking on my carpet 3) they set dirty toolboxes and caulk guns directly on carpet 4) exhaust pipe is too close to roof peak and can be seen from street view of house Overall, good job. I can live with seeing the pipe from the street. I would recommend based on the overall work."

Adam M on January 2018

Radon Detection & Reduction

"Installed radon mitigation system in basement. Pros: 1) reduced overall radon levels by about 75% 2) they did the work in extreme cold temps 3) done in about 4 hours Cons: 1) They arrived late (although they did call to let me know) 2) they did not wear boot covers or put down any floor protector when walking on my carpet 3) they set dirty toolboxes and caulk guns directly on carpet 4) exhaust pipe is too close to roof peak and can be seen from street view of house Overall, good job. I can live with seeing the pipe from the street. I would recommend based on the overall work."

Adam M on January 2018

Radon Ridder LLC

171 Devonshire Dr
5.00(
1
)

Radon Ridder LLC

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

We provide do-it-yourself Radon Mitigation Kits exclusively for home-owners through our internet store: www.sumpsealer.com and other internet retail web sites.

We provide do-it-yourself Radon Mitigation Kits exclusively for home-owners through our internet store: www.sumpsealer.com and other internet retail web sites.

Showing 1-10 of 13
Radon Detection and Reduction questions, answered by experts

Radon testing costs around $450 on average, but you could pay between $150 and $800 for testing, depending on a few factors. The size of your house is one of the most significant cost factors, as your radon professional will have to set up additional tests for homes with larger footprints. The type of test can also have an impact on the cost. Finally, some radon testing companies will include a recommended protocol for radon mitigation, while others might charge $50 to $100 extra.

DIY radon detection is possible using over-the-counter test kits, but professional testing can provide more accurate assessments, especially in cases of high initial readings.

What is radon? It’s a radioactive gas that naturally occurs in the ground, forming as uranium and thorium decay. It has no color or odor, so you don’t know if it’s seeping into your building’s foundation. Regular exposure to radon gas increases your chances of suffering from lung cancer. Radon testing measures the air inside your house for the presence of radon gas. If detected, the test will measure the severity of radon levels in your home’s air.

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

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Cortland, 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