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Professional Radon Testing

quality environ photot radon

Independent Radon Testing Since 2002

Protect Your Family with Accurate, Professional Radon Testing

You can't see radon.

 

You can't smell it.

 

You can't taste it.

 

Yet it can be present in homes of every age, size, and style.

The only way to know whether your home has elevated radon levels is through professional testing.

At Quality Environmental Testing (QET), we've provided independent professional radon testing throughout southwest Chicagoland since 2002. We help homeowners, home buyers, sellers, real estate professionals, attorneys, and property managers obtain accurate radon measurements using professionally calibrated continuous radon monitoring equipment.

Unlike companies that also install radon mitigation systems, QET is a testing-only company. Our job is simple: provide honest, unbiased results so you can make informed decisions about your home.

Whether you're purchasing your first home, preparing to sell, or simply want peace of mind, we're here to help.

Schedule your professional radon test today.

Why Choose Quality Environmental Testing?

When choosing a radon testing company, experience and independence matter.

For more than two decades, homeowners throughout Will, Cook, DuPage, and surrounding counties have trusted Quality Environmental Testing because we focus on one thing—accurate environmental testing.

Why homeowners choose QET

  • Family-owned and locally operated since 2002

  • Independent testing company

  • We do not perform radon mitigation

  • Licensed and insured

  • Professional calibrated continuous radon monitors

  • Minimum 48-hour testing

  • Hourly radon measurements

  • Electronic reports

  • Responsive scheduling

  • Trusted by homeowners, Realtors, attorneys, and home inspectors

Because we don't sell mitigation systems, our recommendations are never influenced by another service. Every test is performed with one goal in mind—providing accurate information you can trust.

why choose qet

What Is Radon?

Radon is a naturally occurring radioactive gas produced as uranium breaks down in soil and rock beneath the ground.

As radon moves upward through the soil, it can enter buildings through openings in the foundation, including:

  • Foundation cracks

  • Construction joints

  • Sump pits

  • Floor drains

  • Plumbing penetrations

  • Utility openings

  • Crawl spaces

Because radon is invisible, odorless, and tasteless, homeowners have no way of detecting elevated levels without testing.

Many homes with high radon levels look perfectly clean, well-maintained, and completely normal.

Testing is the only reliable way to determine your home's radon concentration.

Why Every Home Should Be Tested

One of the biggest misconceptions we hear is:

 

"My house is newer."

 

"My neighbor tested."

 

"I don't have a basement."

 

Unfortunately, none of those determine whether your home has radon.

We've seen neighboring homes produce completely different results.

 

Why?

 

Every property is different.

 

Small differences in soil conditions, foundation construction, air pressure, ventilation, and even weather during the testing period can influence how much radon enters a home.

 

That's why every home should be evaluated individually.

 

Professional radon testing is recommended for:

  • Older homes

  • New construction

  • Ranch homes

  • Two-story homes

  • Split-level homes

  • Luxury homes

  • Condominiums

  • Townhomes

  • Homes with crawl spaces

  • Slab-on-grade homes

  • Homes with finished basements

 

The age, size, or value of a home doesn't determine whether radon is present.

Testing does.

When Should You Test Your Home?

There are several situations where professional radon testing is recommended.

Buying a Home

Radon testing is commonly performed during the home inspection process so buyers understand the home's radon level before closing.

Selling Your Home

Many homeowners test before listing their property to avoid unexpected issues during negotiations.

Never Tested Before

If your home has never been professionally tested, now is the right time.

After Finishing Your Basement

Finished basements often become family rooms, bedrooms, offices, home gyms, or entertainment areas.

Since these rooms are used more frequently, understanding the radon level becomes even more important.

After Major Renovations

Foundation work, additions, HVAC changes, or remodeling projects can affect airflow within the home.

Retesting is recommended after significant structural changes.

After Installing a Mitigation System

Testing confirms the system is effectively reducing indoor radon levels.

Our Professional Radon Testing Process

Quality Environmental Testing uses a professionally calibrated SunRADON 1028-XP Continuous Radon Monitor.

 

Our process follows established testing protocols to provide dependable results.

Closed house conditions of 12 hours are required prior and during the testing process.

Step 1

We place the monitor/monitors on every foundation and at the lowest level of the home that could be regularly occupied.

Step 2

The monitor/monitors remains in place for a minimum of 48 hours.

Step 3

The monitor/monitors record hourly radon measurements throughout the testing period.

Step 4

Testing conditions are reviewed to ensure reliable results.

Step 5

An electronic report is prepared and delivered once the inspection documentation is complete.

 

Unlike charcoal test kits, continuous monitoring provides detailed hourly measurements throughout the testing period.

testing process

Preparing for Your Radon Test

Closed-house conditions are important for obtaining accurate results.

 

Before and during testing:

  • Keep exterior windows closed.

  • Keep doors closed except for normal entry and exit.

  • Operate heating and cooling systems normally.

  • Do not move or unplug the monitor.

  • Avoid unusual ventilation during the testing period.

 

We'll explain these requirements before your appointment.

Understanding Your Radon Results

Radon is measured in picocuries per liter (pCi/L).

 

The Environmental Protection Agency recommends taking corrective action when indoor radon levels measure 4.0 pCi/L or higher.

 

Some homeowners also choose to reduce levels between 2.0 and 4.0 pCi/L to further lower long-term exposure.

 

Testing doesn't tell you what you must do.

 

It provides reliable information so you can make an informed decision.

Why Professional Testing Is Better Than DIY Test Kits

DIY kits can provide useful screening information, but professional testing offers several important advantages.

 

Professional testing includes:

​

  • Calibrated continuous radon monitors

  • Hourly measurements throughout the test

  • Tamper detection

  • Proper monitor placement

  • Professional interpretation

  • Clear electronic reports

  • Documentation frequently requested during real estate transactions

 

For home purchases, home sales, and situations where dependable documentation matters, professional testing is the preferred option.

What Happens If My Radon Level Is High?

Finding an elevated radon level doesn't mean you should panic.

 

It simply means your home has been accurately tested and you now have the information needed to decide on your next steps.

 

Most elevated radon levels can be significantly reduced using a properly designed radon mitigation system.

 

Because QET does not install mitigation systems, our test results are completely independent.

 

Our role is to provide accurate testing—not to sell another service.

Who We Serve

Quality Environmental Testing works with:

​

  • Homeowners

  • Home buyers

  • Home sellers

  • Realtors

  • Home inspectors

  • Attorneys

  • Property managers

  • Landlords

  • Real estate investors

 

Whether you're purchasing your first home or have owned your property for decades, we're here to provide professional, dependable testing.

Communities We Serve

Quality Environmental Testing proudly provides professional radon testing throughout southwest Chicagoland, including:

​

 

Don't see your community listed?

 

Contact us. We proudly serve much of Will, Cook, DuPage, and surrounding counties.

Learn More About Radon

Visit our educational resources to learn more about protecting your home.

 

Recommended articles include:

​

 

These articles answer many of the questions homeowners ask before scheduling a test.

Frequently Asked Questions

How long does a professional radon test take?

Professional testing is performed over a minimum of 48 hours using a continuous radon monitor.

Can I stay in my home during the test?

Yes. Continue your normal daily routine while maintaining closed-building conditions.

Can new homes have radon?

Yes. Radon comes from the soil beneath the home—not from the age of the structure.

Does my neighbor's result matter?

No. Two neighboring homes can have very different radon levels.

Do homes without basements need testing?

Yes. Slab-on-grade homes, crawl space homes, and homes without basements can all have elevated radon.

Should condos and townhomes be tested?

Ground-contact units, first-floor condos, and townhomes should all be evaluated individually.

How often should I test?

Testing is recommended if your home has never been tested, after major renovations, after installing a mitigation system, or if several years have passed since your last test.

Is professional testing worth it?

Professional testing provides calibrated equipment, hourly monitoring, detailed reporting, and dependable documentation that real estate transactions require.

Why choose an independent testing company?

Independent testing companies have no financial interest in whether your radon level is high or low. Their focus is providing accurate results.

Schedule Professional Radon Testing Today

For more than 20 years, Quality Environmental Testing has helped homeowners throughout southwest Chicagoland make informed decisions through accurate, independent radon testing.

 

Whether you're buying a home, preparing to sell, or simply want peace of mind, we're ready to help.

 

Contact Quality Environmental Testing today to schedule your professional radon test.

Quality Environmental Testing, Inc.

 

Professional Testing. Independent Results. Trusted Since 2002.

schedule today
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