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  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon15
    Verified radon detection and reduction services reviews

Top-Rated Radon detection and reduction specialists in Downers Grove - Updated Nov 2026

Avatar for Boomtown Radon Testing
Boomtown Radon Testing
5.0(
25
)
Radon Gas - Testing

Serving Downers Grove, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"Ross called back within 30 minutes and set up an appointment for the same week at my convenience. He was extremely professional and very easy to work with. He was on time both time he had to be in my home. I had my results in my email within a few hours of him picking up the sensors. I truly appreciate his time and explanations. I would definitely recommend Ross and Boomtown Radon Testing without hesitation."
Overhead view
Up and Running
Waiting to begin
Hats
Response time8 hrs
22 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for JC Radon Solutions, LLC
JC Radon Solutions, LLC
5.0(
38
)
Radon Gas - Abatement

Serving Downers Grove, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"JC Radon Solutions did a great job in the installation of our radon mitigation system. They arrived at the agreed time for both the proposal visit and then for the install work. The work area was kept clean during the install. A great job by a great company. I highly recommend JC Radon Solutions for radon mitigation work. Prior to the mitigation work, radon monitoring recorded average readings of 10. Now the readings are 3.5. Very pleased with the JC Radon Solutions system."
sump
Response time6 hrs
Response rate100%
36 neighbors recently requested a quote
Avatar for DuPage Radon Contractors
DuPage Radon Contractors
4.4(
41
)
Radon Gas - Abatement

Serving Downers Grove, IL and surrounding areas

Approved

In business since 1991

Free estimates

Credit card accepted

"They contacted us immediately and were here the next day to test our home for radon. They were very thorough and inspired confidence. They also gave us a report of what they found. Also resonable prices!"
Standard Fan Housing
System External View
Suction Pipe into Basement Floor
Low Profile Fan Comparison
Standard Fan Housing

+39

Recommended by100%of homeowners
Avatar for Clean Air Radon Systems, Inc.
Clean Air Radon Systems, Inc.
4.8(
27
)
Radon Gas - Abatement

Serving Downers Grove, IL and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"As a Realtor, Schan has done many of my clients' radon system install and they all were extremely please with his knowledge, install and his going above and beyond to make the system appealing from the exterior of the home. Many companies will not make the effort to ensure that the system does not look unsightly. Schan does and he is an expert at what he does. I would only recommend Schan to my clients!"
pipe in garage
2) Main suction point
3) Our secondary suction point
4) Fan in attic
5) vented through roof

+18

Response time11 hrs
13 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Midwest Radon Services, Inc.
Midwest Radon Services, Inc.
4.7(
39
)
Radon Gas - Abatement

Serving Downers Grove, IL and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"We had a radon remediation installed by them in 2021. We've had to replace the fan 2x already- whereas the expected lifetime of a fan is 8-10 years."
SF-180
Painted Slimline Fan and couplings
90 mil Foil Backed Liner
U-Tube Monometer & Sticker with State Tag
RP-145

+26

Response time1 day
8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
598
)
Radon Gas - Abatement

Serving Downers Grove, IL and surrounding areas

Approved

In business since 1957

Free estimates

Warranties offered

"Called company on Monday and got an appointment for an inspection on Wednesday. That following Monday, the technician arrived and went through each step is sealing off the concrete foundation to the water leak. The fix worked well and was put to the test with the recent record rains. Not one drop of water came into the basement."
Radon Mitigation
Radon Mitigation
Basement Waterproofing
Basement Waterproofing
Response time1 day
Response rate100%
26 neighbors recently requested a quote
Avatar for Northern Illinois Radon, LLC
Northern Illinois Radon, LLC
4.7(
35
)
Radon Gas - Testing

Serving Downers Grove, IL and surrounding areas

In business since 2014

Free estimates

Credit card accepted

"My husband and I are writing to communicate to you a very positive interaction with Mr. Tim Peiffle. His professional approach to a radon inspection, which was mandatory in the conduction of the sale of our home, displayed a knowledgeable background, as he also educated my husband and myself, as to the radon process. His service was stellar!"
An A+ Accredited Business with the BBB.
Certified Commercial Mold Inspectors
Advanced Radon Measurement Service Provider
Home Adisor Approved Professional

+5

Response time11 hrs
Recommended by100%of homeowners
Avatar for Radon Doctor
Radon Doctor
5.0(
20
)
Radon Gas - Testing

Serving Downers Grove, IL and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"I consulted with Radon Doctor about my home. The four foot high basement had 5 pci in a 48 hour test. The first living floor was 1.5 pci in the same test. Radon Doctor advised me to monitor radon levels on the living floor over 6 months during winter season and get back to them for mitigation if needed. They did not take advantage of a single basement reading to insist I install a system that would not affect the living floor levels. These guys are legit."
Breeze Continour Radon Monitor
Response time5 hrs
Response rate88%
Recommended by94%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

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.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

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.

The Downers Grove, 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.