Quality Environmental Testing  Inc.

Radon in Chicagoland If you're buying a home, selling one, or have lived in your house for years, you've probably heard someone mention radon testing. Maybe your real estate agent recommended it before closing. Maybe a neighbor recently discovered elevated radon levels in their basement. Or perhaps you've seen stories about radon in Illinois and started wondering whether it's something you should be concerned about. At Quality Environmental Testing (QET), these are conversati

Professional Mold Inspection & Testing by Quality Environmental Testing (QET) One of the most common questions we hear during mold inspections is: "If the leak has dried up, can mold still grow?" The short answer is no—active mold needs moisture to continue growing. However, that doesn't mean the problem has gone away. At Quality Environmental Testing (QET), we've inspected homes throughout Lockport and the southwest Chicagoland area since 2002. One thing we've learned is tha

Professional Radon Testing by Quality Environmental Testing (QET) Whether you're buying a home, selling one, or simply trying to create a healthier living environment for your family, you've probably heard someone mention radon. It's one of the most common environmental concerns discussed during real estate transactions, yet it's also one of the least understood. Many homeowners assume that if they've never noticed a problem, there isn't one. Unfortunately, radon doesn't wo

Most homeowners never think twice about the air inside their homes. We change furnace filters, clean air ducts, and install air purifiers because we want clean, healthy indoor air for our families. But there is one indoor air hazard that no air purifier or HVAC filter can remove. That hazard is radon. Radon is completely invisible, odorless, and tasteless. The only way to know if your home has elevated radon levels is through professional testing. That's why thousands of home

You found mold in your home. Like many homeowners, your first instinct might be to grab a bottle of bleach, put on a mask, and try to handle the problem yourself. After all, how hard can it be to clean a little mold? Unfortunately, mold contamination is rarely as simple as what you can see on the surface. At Quality Environmental Testing (QET) Lockport, we've seen countless situations where do-it-yourself mold cleanup temporarily removed visible mold only for the problem to r

Buying or selling a home is one of the biggest financial decisions most people will ever make. During the process, buyers often rely heavily on real estate agents, home inspectors, and checklists to guide them. While these professionals play an important role, many homeowners assume someone else is automatically ensuring every health and environmental concern is covered. That assumption can lead to missed issues. The truth is simple: educating yourself during a real estate t

Mold growth inside HVAC ductwork is a problem many homeowners never see — but that doesn’t mean it isn’t affecting indoor air quality. Because your heating and cooling system moves air throughout your home, mold inside ducts has the potential to circulate airborne particles and odors throughout the entire living space. Many homeowners first notice something is wrong when they detect a persistent musty smell, experience worsening allergy symptoms, or begin questioning why indo

Can You Stay in Your Home During a Radon Test? What Homeowners Need to Know Radon testing is one of the most reliable ways to detect elevated radon levels inside a home. Since radon is invisible, odorless, and radioactive, testing is the only way to know whether your indoor air may pose a long-term health risk. But a radon test is only accurate when proper testing conditions are followed. Even small mistakes during the testing period can affect the results. That’s why underst

Selling your home is already a high-stakes process—adding radon into the mix can feel like one more obstacle. The reality? It’s common, manageable, and doesn’t have to derail your closing. With the right approach and the right team, you can keep your deal on track without unnecessary stress. What Are You Required to Do in Illinois? Under the Illinois Radon Awareness Act, sellers must disclose any known information about radon in the property to potential buyers. This is t

When it comes to protecting your home and your health, there’s one issue many homeowners still overlook—Radon gas. Yet across Illinois and the greater Chicagoland area, elevated Radon levels are far more common than most people realize. The problem? You won’t see it, smell it, or notice it—until it’s too late. That’s why professional Radon testing in Illinois has become one of the most important steps homeowners can take. What Is Radon and Why Is It Dangerous? Radon is a natu

You fixed the leak. The area dried out. The mold went from damp and fuzzy to dry and powdery. Problem solved—right? Not necessarily. At Quality Environmental Testing (QET), we’ve evaluated many homes where dried-out mold was assumed to be no longer an issue—only to find it was still impacting indoor air quality. Even when mold appears inactive, particles and fragments can remain in the air and continue to affect the living environment. As the Environmental Protection Agency n

Imagine this: You’re spending a peaceful evening at home when you catch a faint musty smell in the air. You brush it off—maybe it’s damp laundry in the basement or last week’s rainstorm. But a few weeks later, your allergies are flaring up, and that persistent cough won’t go away. What if the source isn’t seasonal pollen… but hidden mold in your home? Mold is far more underhanded than most homeowners realize. It can grow behind walls, beneath flooring, inside insulation, and

February is National Cancer Prevention Month , a time dedicated to increasing awareness around the proactive steps people can take today to reduce cancer risk over time. Most prevention conversations focus on lifestyle habits like nutrition, exercise, and medical screenings. While these are critical, there is one major risk factor many homeowners overlook: The air inside their home. At Quality Environmental Testing , we provide professional radon testing for homeowners acros

Why Professional Moisture and Air Testing for Mold Risks Matters More Than Most Homeowners Realize When temperatures drop across Chicagoland, homeowners focus on keeping their homes warm and energy efficient. What many don’t realize is that winter heating can quietly create the perfect conditions for moisture buildup — and ultimately mold growth. At Quality Environmental Testing (QET) , we regularly evaluate homes where the heating system itself played an unexpected role in i

January is Radon Awareness Month , and this is one of the most important reminders for homeowners every year: Radon is real, it’s common, and you can’t detect it without testing. Radon is a colorless, odorless, invisible gas that comes from the natural breakdown of uranium in the soil beneath the ground. That part is normal — it’s happening everywhere. The problem is when radon rises from the soil and gets pulled into your home through things like: cracks in basement floors

Radon gas is one of the most common—and least understood—indoor air quality issues affecting homes today. Many homeowners are unaware that radon can build up indoors without any visible signs, making radon testing the only way to know if your home is affected. Understanding what radon is, how it enters a home, and why it matters can help you make informed decisions to protect your family’s health. What Is Radon Gas? Radon is a naturally occurring radioactive gas that forms

Take Control of Your Indoor Air Quality Indoor air quality plays a critical role in the health and comfort of your home. Hidden hazards such as radon gas and mold can exist without visible warning signs, yet still pose serious health risks. At Quality Environmental Testing , we provide professional environmental testing services to help homeowners identify these concerns early and take informed action. Our services focus on radon testing and mold testing , giving homeowners

“A mold test is only as reliable as the person who performs it. Professional inspectors don’t just collect samples — they identify the source, interpret the data, and provide solutions. A DIY kit simply can’t do that.”

When you’re preparing to sell your home, you expect to handle the usual tasks—repairs, cleaning, staging, and negotiating with buyers. But many Illinois homeowners overlook one critical step that can dramatically impact the success of a real estate transaction: professional radon testing . Even though radon testing is not legally required in Illinois, today’s buyers almost always expect documented proof that a home is safe. And with radon levels in Illinois ranking among the

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