Your trusted environmental testing laboratory

At Sterling Labs we partner with engineering firms, environmental consultants, industrial manufacturers, and federal agencies to produce timely results to keep your projects moving.

At Sterling Labs, we make environmental testing easy and convenient for you.

We are a DOD, NELAP, ANAB, and AIHA accredited lab, with state-of-the-art technology and current testing methodologies, delivering high integrity data for nearly 40 years.

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High quality, accurate, and on time results, every time

Our wide range of in-house environmental testing services provided by knowledgeable experts allow us to meet your requirements and follow through on your deadlines, no questions asked.


Nationwide availability

We represent Chicagoland’s largest environmental lab, present in two easily accessible locations, and connected to more than 150 US cities one flight away.

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A knowledgeable partner, to help you every step of the way

We pride ourselves in treating every customer as our most important priority. Our dedicated team of experts works closely together to take full responsibility for ensuring your project’s success.

Get to know Sterling Labs

Learn more about your go-to environmental testing partner and get to know the people that make Sterling Labs. Watch our exclusive video and see what sets us apart.


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Streamline your
business operations

No more mishandled samples or unmet deadlines. No more inefficient processes, unintelligible results, or futile customer support. 

Sterling Labs provides accurate data, unmatched convenience, and a partner who will be with you every step of the way.

Choose a partner invested in your future

Confidently pursue new business contracts and expand your operations with ease. We're here to help you take responsible action and minimize environmental impact, as you meet your project deadlines and exceed your clients' expectations. 

Comprehensive environmental services

At Sterling Labs, we are committed to providing the latest and most accurate testing methods to fulfill all your environmental testing needs.

  • Environmental laboratory testing

  • PFAS and other specialty services

  • Industrial hygiene

  • Asbestos

  • Product testing

Environmental scientist at work

Environmental laboratory testing

Ensure the seamless execution of your environmental projects with our trusted testing and analyses. Identify potential hazards and safe conditions with our specialized testing of water, air, soil, waste, and other environmental services. 

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PFAS and other specialty services

Establish smooth project operations with our specialized testing services. From PFAS to TO-15 analysis, we offer a diverse range of testing services that are constantly updated to keep up with the latest industry standards.

special hygiene

Industrial hygiene

Our industrial hygiene testing services help you evaluate exposure levels to potential hazards at home, in school or in the workplace.



Meet regulatory requirements and make asbestos a thing of the past. Our detailed and precise services will help you safely handle and prevent asbestos-related diseases.

Product Testing

Product testing

Promote the health and well-being of your customers with testing you can trust. Our extensive consumer product testing methods can help you guarantee the quality and safety of your products while complying with relevant regulations.

High-integrity results guaranteed

Gain peace of mind knowing that your test results are accurate and compliant thanks to our cutting-edge technology, running the most current testing methods, and extensive range of certifications. With nearly 40 years of experience and a team of specialists, you can rely on us to be your trusted partner for all your testing needs.

Unbeatable customer
service with big capabilities

Experience environmental testing service with unmatched customer service. We strive to exceed our client's expectations and provide the highest level of customer service possible. Our team of subject-matter experts are here to offer their expertise with a personal touch.

Don't just take it from us

Find out how we have helped businesses like yours achieve their goals.

  • I've been in the business for 10 years now, and that whole time they're the only lab we've worked with and we haven't had any reason to search elsewhere. They've kept us happy, and I think we look at Sterling Labs as being a vital part of our process.

  • I live in the city of Chicago (...) and they are at a physical location where sometimes it is convenient for me being 15 minutes away from the lab to go there and pick up containers and drop something off. So the location is helpful.

  • Among their strengths: data reliability, turnaround times, and pickups. Project managers are responsive and pretty helpful with their customer service. They are flexible –if we send them six samples, and then call later and ask them to prioritize some over others, they will do that.

  • Communication is really good. I can call or email and get an answer within minutes. 

  • They are centrally located within Chicagoland, and are easy to access (...) They also have been known to help us outside of regular hours, when other companies would not. We have been doing business with them for a very long time. Having consistent staff is important. They have had the same staff for a very long time and that is very meaningful. 

  • They give more personalized attention for smaller companies such as ourselves so we don’t get lost.  And we don't feel like a nuisance, if you will, compared to the bigger guys and their bigger accounts and the volumes they are used to receiving from customers. So that is a big positive as far as I am concerned. We are able to get a hold of someone on a routine basis and get the answers right away. 

  • The location is convenient, and the team, extremely responsive. Justin and Craig are workaholics and they are always going! 

  • The quality of Sterling Labs is outstanding. There are really no complaints that we've had on our end, or any reason to question the work that they do for us.

  • They do a great job. We do a lot of PCBs in oils and they run a modification of the method that most labs don't that provides a much better sensitivity for that analysis and so that is something that stands  out. They have gone beyond what the norm is to provide a more sensitive analysis. They have 24-7 service which most labs do not anymore. 

  • I think their customer service is wonderful, top notch. I think their knowledge and expertise is great. There are a lot of experts there that we rely on –they help us. (...) I really like working with them.


Your partner for
trusted testing

Keep your projects running smoothly and maintain your commitment to environmental responsibility with Sterling Labs. Partner with us today to receive and deliver exceptional service.