Radon Testing Services

Radon Testing Services in Southeastern Wisconsin

EPA-Compliant Testing for Residential Properties

Professional Radon Testing Services in Milwaukee, Waukesha, and surrounding Wisconsin areas. Our certified inspectors use EPA-approved detection equipment to keep your family safe.

Why It Matters

Why Radon Testing Services Is Important

Radon testing is important because radon is a naturally occurring, radioactive gas that can accumulate inside homes and increase the risk of lung cancer. Radon is colorless, odorless, and tasteless, meaning it cannot be detected without specialized testing equipment. According to the U.S. Environmental Protection Agency (EPA), radon is the second leading cause of lung cancer in the United States and the leading cause of lung cancer among nonsmokers.

The Wisconsin Department of Health Services estimates that approximately 1 in 10 Wisconsin homes has elevated radon levels. Radon can enter a home through foundation cracks, floor openings, and other pathways from the soil beneath the building. Elevated radon concentrations can occur in both new and older homes, regardless of whether neighboring properties have tested low.

The EPA recommends taking corrective action when radon levels reach 4.0 picocuries per liter (pCi/L) or higher and considering mitigation when radon levels are at or exceed 4.0 pCi/L.

Tri County Inspection & Environmental provides professional radon testing throughout Southeastern Wisconsin, including Waukesha, Milwaukee, Lake Geneva, Delafield, Oconomowoc, Brookfield, and surrounding communities. Our radon testing services help homebuyers, sellers, and homeowners identify potential radon exposure and make informed decisions about their indoor air quality.

Whether you're purchasing a home, selling a property, or simply protecting your family, radon testing is an important step toward maintaining a healthier indoor environment.

Schedule your Wisconsin home inspection and radon test together with Tri County Inspection & Environmental for added convenience and peace of mind.

Radon testing starts at $199. CLICK HERE TO VIEW A SAMPLE RADON REPORT

How It Works

Radon Testing Process

A straightforward, professional process to accurately measure radon levels in your property.

Our Certification

Certified Inspection Experts (AHIT & NAHI Trained)

Tri-County only staffs Certified Home Inspection Experts. Our inspectors receive professional training through the American Home Inspectors Training Institute (AHIT) and the National Association of Home Inspectors (NAHI). Only one in fifty home inspectors nationwide holds the Certified Inspection Expert designation.

Locations

Serving Property Owners Across Wisconsin

Waukesha, WI

Lake Geneva, WI

Madison, WI

Delafield, WI

Milwaukee, WI

Janesville, WI

Empowering Successful Homeownership One Home Inspection At A Time

      EXCELLENT  
   Based on 510 reviews 
    
 
 
 
   
 
 
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   Dave Sticha 
 
 
 
 Trustindex verifies that the original source of the review is Google. Zack Wolf inspected a home for us in Delavan WI. First off, he was very personable and easy to talk to. He explained in easy to understand terms exactly what he was going to do, the timeline to expect, what the report would look like, how to use it to evaluate the home we were interested in purchasing, when to expect the report, and hopw to access it. Zack was also very organized and efficient. It was a larger home with some complicated electronic HVAC controllers but he took it all in stride and stepped through each phase of the inspection in an organized and methodical fashion. Extra credit to him for dealing with a hard to get along with home owner. That didn't stop Zack! At the end of the inspection he met with us for a few minutes and gave us a quick verbal summary of all of the systems and highlighted what he felt were the high (pr actually the low) points he found. Just a few hours later we had his report in our email. It included a HTML version for viewing ona  mobile devcice, a short summary version highlighting the important findings for a propective buyer, and the full 130 page version for later reading and reference. All in all the inspection report was a bargain as it gave us assurance the home was OK to purchase but also let us know what things we needed to address and/or keep an eye on in the future. Thank you Zack!
  
 
      Posted on Google  
   
   Becca Schaum 
 
 
 
 Trustindex verifies that the original source of the review is Google. Ryan was super knowledgeable! He was patient in explaining all of the details to us and even took videos to explain how things work. We appreciate all he did!
  
 
      Posted on Google  
   
   Mark Wolf 
 
 
 
 Trustindex verifies that the original source of the review is Google. Our inspector Zach Wolf was outstanding
  
 
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   Ali Coates 
 
 
 
 Trustindex verifies that the original source of the review is Google. Super thorough and kind!
  
 
      Posted on Google  
   
   Zach Nold 
 
 
 
 Trustindex verifies that the original source of the review is Google. Friendly and very thorough!
  
 
      Posted on Google  
   
   lee bergquist 
 
 
 
 Trustindex verifies that the original source of the review is Google. Prompt, responsive, highly detailed inspection report.
  
 
  
  
 
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FAQs

Mostly Asked Questions Answered

What is radon testing?

Radon testing is the process of measuring the amount of radioactive radon gas inside a home or building to determine whether potentially harmful levels are present. Radon is a naturally occurring, colorless, odorless, and tasteless gas that enters buildings through foundation cracks, basement floors, and other openings. Because radon cannot be detected by sight or smell, specialized testing equipment is required.

During a professional radon test performed by a Tri County professional a continuous radon monitor is typically placed on the lowest level of the home suitable for occupancy. The equipment measures radon concentrations over a minimum testing period of 48 hours, with results reported in picocuries per liter (pCi/L).

The U.S. Environmental Protection Agency (EPA) recommends radon mitigation when levels reach 4.0 pCi/L or higher and suggests considering corrective action for levels that exceed 4.0 pCi/L average over a minimum of 48 hours.

Tri County Inspection & Environmental provides professional radon testing throughout Southeastern Wisconsin, including Waukesha, Milwaukee, Delafield, Oconomowoc, Brookfield, Lake Geneva, and surrounding communities. Radon testing is available for homebuyers, sellers, and homeowners and can be conveniently scheduled alongside a comprehensive Wisconsin home inspection.

Testing for radon is a simple, noninvasive way to identify elevated radon levels, evaluate indoor air quality, and help protect your family’s long-term health.

Why test a home for radon?

During a professional radon test, a continuous radon monitor is typically placed on the lowest level of the home suitable for occupancy. The equipment measures radon concentrations over a minimum testing period of 48 hours, with results reported in picocuries per liter (pCi/L).

The U.S. Environmental Protection Agency (EPA) recommends radon mitigation when levels reach 4.0 pCi/L or higher.

Testing for radon is a simple, noninvasive way to identify elevated radon levels, evaluate indoor air quality, and help protect your family’s long-term health.

Does Tri-County provide radon testing?

Yes. Tri County Inspection & Environmental provides professional radon testing services throughout Southeastern Wisconsin, including Delafield, Waukesha, Milwaukee, Lake Geneva, Oconomowoc, Brookfield, Madison, Janesville, and surrounding communities.

Radon is a naturally occurring, radioactive gas that cannot be seen, smelled, or tasted. It can enter homes through cracks and openings in foundations and accumulate indoors. According to the U.S. Environmental Protection Agency (EPA), radon is the second leading cause of lung cancer in the United States and the leading cause among nonsmokers.

Tri County uses professional-grade continuous radon monitors to measure indoor radon concentrations, typically over a minimum 48-hour testing period. Our radon testing services are available as part of a comprehensive home inspection or as a standalone service for homeowners, homebuyers, and sellers, starting at $199.

Why choose Tri County for radon testing?

Professional Radon Testing Equipment: Continuous radon monitors provide detailed measurements of indoor radon concentrations.
Accurate, Easy-to-Understand Results: Clients receive a radon testing report explaining the measured levels and recommended next steps.
Convenient Scheduling: Radon testing can be coordinated with your Wisconsin home inspection or scheduled separately.
Experienced Local Professionals: Serving Southeastern Wisconsin since 2002, with more than 20,000 residential and commercial property inspections completed.

The EPA recommends fixing your home if radon levels are 4.0 picocuries per liter (pCi/L) or higher, and considering mitigation for levels between 2 and 4 pCi/L.

Whether you’re purchasing a home, preparing to sell, or concerned about radon levels in your current residence, Tri County Inspection & Environmental can help you understand your home’s radon levels and make informed decisions. Radon testing starts at just $199.

Schedule professional radon testing online or call 262-225-9668.

Schedule Your Inspection Today

Protect Your Investment. Protect your health. Make Confident decisions

Radon Testing Services in Southeastern Wisconsin

Why Radon Testing Services Is Important

Radon Testing Process

Install Continuous Radon Monitor

Measure Radon Levels for 48–72 Hours

Analyze Results

Provide Professional Report

Certified Inspection Experts (AHIT & NAHI Trained)

What Happens If Radon Is Found?