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Quality Testing & Engineering:

Rachelle M. Lengermann

Plocher Construction

Throughout our decade-long relationship, we’ve experienced Quality Testing and Engineering to be a valuable firm to have on our team, from project start to construction completion. Their timely and accurate geotechnical services allow us to understand the earth conditions prior to design.  During construction, their material testing services are thorough; whether they are testing soil compaction, concrete strengths, welds, or fireproofing thickness, they have the knowledge and expertise to verify the quality is to our high expectations. We have also utilized QTE’s environmental services on a long-term project.  Although the process was years long, it always felt like that project was a priority to them and they followed up frequently. In addition to having highly skilled staff, QTE is very competitive with their pricing, which allows us to produce a quality finished product within or below our client’s budget. I strongly recommend Quality Testing and Engineering for all of the services they have to offer before and throughout construction.

Ryan Fischer, Vice President

Kamadulski Excavating and Grading, Inc.

Dear Mike, It has been a pleasure working with you over the past 7 years. Kamadulski Excavating has worked with QTE for as long as you have been in business and really enjoy the partnership! Having people like you is always an added benefit to our projects! We have enjoyed continued success with QTE while working at Gateway Commerce Center and many other sites in the St. Louis region. The on-site dirt is a very difficult material to work with. It takes a Team to move, place and compact it like we have done! We look forward to many more future projects with you.

Eric Gowin

Contegra Construction Company

Quality Testing has provided geotechnical engineering, construction testing and environmental services on various projects for Contegra Construction Company for over 12 years.  Quality Testing has always conducted their business in a professional manner and their staff and field employees work diligently to provide quality service on our projects.

Jim Dearduff, Project Manager

Alton Community Schools

Dear Mr. Marlinghaus: We would like to express our appreciation for the effort you and your company put forth in bringing the Alton Community School project to a successful completion. We look forward to working with your firm on future projects.

Calvin C. Morris, AIA; Principal

AAIC Incorporated

Dear Mr. Widman: I would like to thank Quality Testing & Engineering, Inc. (QTE) for a job well done on the School of Nursing & N.O. Nelson Complex projects at the Lewis & Clark Community College. QTE’s professionalism, responsiveness, and experience are second to none. QTE’s staff understands the importance of maintaining a tight construction schedule without compromising quality. We look forward to the opportunity to work with QTE on future projects.

Richard W. Parsons, P.E., Staff Engineer

Hershey Foods Corporation

Dear Mike, As we approach the completion of the subject 1,000,000 square foot distribution center in Edwardsville, IL. I would like to thank and compliment you on behalf of Hershey Foods Corporation for the engineering support and onsite monitoring, testing, and reporting performed by your company that has been a big part of making this project a success. Starting with our Request for a Proposal for a detailed Geotechnical Study in March 2003 and follow up soils design issues to support our May 2003 start date, your service and advice has been technically excellent, complete and timely in support of our aggressive construction schedule. Without question, you and your field personnel have supported our needs and made sure our interests were addressed and satisfied. Hershey Foods Corporation insists work be performed and verified to high standards, starting the first day of construction, while still maintaining schedule and budget. In today’s fast-track world, once the decision to proceed with a project is made, this requires a knowledgeable construction and engineering team be pulled together quickly to settle design issues as well as establishing an inspection program to control quality. Quality Testing and Engineering was a key player in the soils, concrete and paving design as well as site monitoring, testing, and reporting for these areas and site monitoring and reporting for structural steel. The knowledge, dedication, and professionalism of your design and field personnel as well as their willingness to work whatever hours it took in support of the construction effort is greatly appreciated.

Travis Cory

Contegra Construction Company

Quality Testing has continued to provide excellent services on various Contegra projects. Their knowledge and expertise has always been beneficial during any phase of the project. QTE is always willing to sit down and discuss solutions to certain challenges or potential problems making them a great team player. It is clear to me, that Quality Testing takes pride in helping ensure a quality product is delivered to the client.

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.