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TRUSTED BY WOODSTOCK, IL HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon21
    Verified radon detection and reduction services reviews

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

Avatar for Bull's Eye Home Inspection
Bull's Eye Home Inspection
4.8(
28
)
Radon Gas - Testing

Serving Woodstock, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Small jobs welcome

"Mat is the inspector realtors hate... tongue-in-cheek. He is extremely knowledgeable, has great attention to detail, and is very honest. If there is something wrong with the property, you better believe he's going to find it. He takes the time and does a thorough job. I highly recommend him!"
Knee wall in Chicago Bungalow
Hydronic floor heating
Small flat roof on gable shingled roof
Overview of townhome in Glenview
Townhome Attic

+4

Response time3 hrs
3 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Gardner Environmental Services
Gardner Environmental Services
4.8(
265
)
Radon Gas - Abatement

Serving Woodstock, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"We hired Gardner Environmental Services to install a radon mitigation system in our home. Due to our finished basement and high levels of radon, we were told by other companies that a successful mitigation would be a challenging job. The team at Gardner was knowledgeable, professional, and did a wonderful job. They gave us different options and talked to us through the process. Our radon levels were originally around 18 and with the mitigation system, they were brought down to below 1 on our home reader. We now have peace of mind knowing that our home is safe for our family."
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+20

Response time5 hrs
16 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Gardner Services
Gardner Services
4.7(
17
)
Radon Gas - Abatement

Serving Woodstock, IL and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"This company is great to work with. They did some mold testing on parents’ home and did excellent work. They also did some work on my home. They replaced a water heater and bathroom fans. He was easy to get a hold of, personable and come over right away."
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+18

Response time7 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for U.S. Waterproofing
U.S. Waterproofing
4.2(
598
)
Radon Gas - Abatement

Serving Woodstock, 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%
17 neighbors recently requested a quote
Radaquest Radon Inspectors
5.0(
4
)
Radon Gas - Testing

Serving Woodstock, IL and surrounding areas

In business since 2008

Free estimates

Credit card accepted

"Very easy to get an appointment on short notice when I had limited time to get a radon test done in the process of purchasing a home. Their price was also slightly lower than an estimate I'd received from another company, and the technician was more thorough about explaining the process than the other company I considered."
Response time5 hrs
Response rate87%
Recommended by100%of homeowners
Avatar for Safe Haven Radon Solutions, LLC
Safe Haven Radon Solutions, LLC
5.0(
7
)
Radon Gas - Abatement

Serving Woodstock, IL and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"If you want the job done quickly and done right, Safe Haven Radon is it. On time for quote appointment and later scheduled work. Easily came up with a plan to mitigate the whole basement with one fan. VS another company wanted to install 2 fans which would only cover half the basement and we could â wait and see if more work needed to be done.â Safe Haven Radon was the only company that wanted to make sure the radon levels in the WHOLE house would be close to zero. They also guaranteed that once the work was done radon levels would be below 1. Another company told me â you donâ t live in the kitchen, so we donâ t need to test there.â Why would we do all this work and NOT make sure the whole house was safe? Safe Haven Radon did the work in a few days, made sure all the pipes were in unfinished areas, and left areas impeccably clean. He also made sure that the outside fan and pipes were in an area that made sense for the house, near other pipes and A/C, even though it meant doing a little extra inside work. These guys were the best!"
Suction point
Residential system
Response time8 hrs
Response rate92%
Recommended by100%of homeowners
Avatar for HomeSpecs
HomeSpecs
5.0(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Woodstock, IL and surrounding areas

In business since 2008

Free estimates

Emergency services offered

Local and owner operated for over 10 years. HomeSpecs is a professional home inspection company with a main priority to identify the damaged and non-functioning components of the property. This analysis will be conducted by a specially trained and qualified home inspector who will help to determine the condition of the building.

Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

No, radon mitigation systems do not decrease home value or make a home harder to sell. In areas where homes experience similar radon exposure risks, a radon mitigation system is viewed as an improvement. Potential homebuyers often opt to buy a home with a radon mitigation system already installed to reduce the risk of cancer for their families.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

The Woodstock, 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.