St. Louis County  |  O’Fallon  |  Saint Charles  |  St. Louis City


Trusted Environ­mental Testing & Indoor Air Quality Solutions in St. Louis

Proper Environmental is your accurate, timely, & professional indoor air quality partner.

Take a Deep Breath. Our Services Have You Covered.

Radon Testing

The only way to determine radon levels in your home is through professional testing.

Radon Mitigation

If our accurate and comprehensive reports show higher radon levels, we'll work quickly to reduce your risk.

Mold Testing

Take the first step to eliminating airborne health problems like asthma or allergies by scheduling a professional mold test.

Reliable Radon Testing St. Louis

Radon poses significant health risks as a tasteless, odorless, colorless natural gas. Although assessing radon levels in a newly purchased home is vital, your efforts shouldn’t stop there. As the second leading cause of lung cancer in the United States, it’s critical that you ensure your family is breathing clean, healthy air. Do-it-yourself radon testing kits aren’t nearly as accurate, prompt, or trusted as professional services. Our team of radon detection experts at Proper Environmental is here to help.

We’ll swiftly identify radon issues, create a comprehensive and detailed report, and implement a custom solution for your St. Louis home. Families in St. Charles, O’Fallon, and the greater St. Louis area trust our environmental testing services.


HUD Multi-Family Radon Policy Testing

HUD Multi-Family Radon Policy Mitigation

Radon Mitigation Inspections

Indoor Air Quality Filters

Dehumidification Services

Energy Recovery Ventilator Systems

And much more

At Proper Environmental, we understand the importance of keeping your family safe. We’ve created a full suite of environmental testing services to identify and eliminate airborne health threats, such as radon testing, radon mitigation, and indoor air quality services. Schedule a free one-hour consultation and estimate today.

Why St. Louis Area Families Trust the Proper Environmental Way

Professional, friendly, quick turnaround service
Family-owned & operated
Proud members of industry best organizations
Accurate test results & detailed reporting
Free one-hour, on-site consultations & estimates

Mold Testing, Asbestos Testing, & Water Contamination Testing

Radon isn’t the only threat to your indoor air quality. Mold, asbestos, and water contamination can cause numerous respiratory problems. In addition to health risks, your home or building’s value, quality, and livability also decrease.

Mold only needs a damp environment and organic material to take over and thrive in your home. Whether from humidity, a leaking roof, or other forms of flooding, mold can populate quickly and without warning. If you either see or smell potential mold in your home, it’s in your best interest to contact us right away. We’ll perform mold testing with a friendly, professional approach, so you can have everything you need to eliminate risk for good.

Healthy Living Starts Here

Our comprehensive service offerings also cover asbestos, allergens, and water contamination. There’s no need to juggle communication with several contractors – with Proper Environmental, you can rest and breathe easier.

Our indoor air quality services in O’Fallon, St. Peters, Florissant, and other greater St. Louis area cities include:

Mold Testing

Asbestos Testing

Water Contamination Testing

Allergen Testing

Receive a Free Estimate for Environmental Testing Today

Don’t cut corners when it comes to your family’s safety. You’ll benefit from trusted, professional, and industry-leading solutions. That’s where we come in – at Proper Environmental, our dedicated experts provide personalized, high-quality service to ensure your home or business’ air remains safe year-round. Let us prove why we’re the St. Louis area’s local go-to for radon testing, mitigation, and indoor air quality solutions. Call us today or schedule a free estimate and consultation online.