(618) 632-9900 (636) 332-1153 marketing@qteinc.com

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About Quality Testing and Engineering

Quality Testing and Engineering, Inc. (QTE) was founded by Michael A. Widman in April of 2000 to provide a wide variety of construction material testing, geoteclmical engineering, and other development services. To better address the growing needs of clients, Mr. Jack Mutchler was hired in 2002 to manage the environmental, archaeological, and wetland consulting services. The company soon gained a reputation for providing quality, timely service. Within two years of operation, QTE experienced substantial growth. This warranted additional professional staff. Mr. Wayne Smith, Soil Scientist Eric Marlinghaus, P.E., Construction Services Manager, and Chad Maitens, Environmental Project Manager, joined QTE in 2002, 2003, and 2007 respectively. QTE’s excellent reputation began to earn substantial recognition in Missouri resulting in the opening of QTE’s regional office in Wentzville on March 1, 2006.  A dedicated professional staff and state-of-the-art technology assure QTE’s ability to continue its tradition of premium service to clients. QTE technicians are ACI, MoDOT, and IDOT certified.




Quality Testing and Engineering, Inc.’s staff is committed to three client-quality focused goals:

Meeting Client's Needs.

Meeting a client’s needs means more than testing within project contracts and specifications. QTE staff provides testing results as quickly as possible to avoid delays and additional costs. QTE professionals work personally with the project team and field staff to establish effective communication and ensure a quality end product.

Providing Timely Response.

Projects are typically on a tight schedule, which require field and laboratory testing, analyses, and recommendations to be completed promptly. QTE personnel are dedicated to a quality and timely response.

Avoiding Costly Surprises.

QTE professionals diligently search for conditions that could produce unexpected cost delays, redesigns, etc. Recommendations and alternative solutions are provided when unfavorable conditions are present.

QTE can help you clean up contaminants and bring you into compliance as quickly and cost-effectively as possible.

Corporate Office

803 W State St, O’Fallon, IL 62269
(618) 632-9900
(618) 632-9922



Regional Office
(By appointment only.)

206 S. Linn Ave. Wentzville, MO 63385
(636) 332-1153
(636) 332-5781



Quality Testing & Engineering, O'Fallon, IL / St. Louis, MO

Quality Testing & Engineering, with construction testing and engineering offices in O'Fallon, Illinois and Wentzville, Mo, serves the St Louis, Missouri metropolitan area as well as areas of Southern Illinois including O'Fallon, Illinois, Edwardsville, Illinois, Alton Illinois, Belleville, Illinois, Troy, Illinois, Columbia, Illinois, Scott Air Force Base, Illinois and other areas. We provide construction testing, environmental consulting and testing, geotechnical exploration, construction materials testing and other environmental services to the St Louis area, including Wentzville, Missouri, O'Fallon Missouri, St Louis County as well as all areas of Southern Illinois.

Quality Testing and Engineering products range in size from residential homes to Industrial/Refineries, heavy industrial projects such as power plants, refineries and factories. QTE works in commercial, educational, institutional, industrial, recreational, refinery, transportation and warehousing projects.