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Quest Specialty Products
CALL TO ORDER: 636-447-5521
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Welcome to Quest Specialty Products
Our machining capabilities range from very small parts utilized by the Medical Industry, components for light Industrial, Commercial, Defense & Aerospace to very large parts in the Transportation and Rail Industries.  This versatility makes us the ideal choice for all your machining needs.

Our Mission
At QSP, our mission is to provide machining services of the highest standard. We follow an ISO Quality System and are dedicated to providing excellent Customer Service, and the timely delivery of Quality Products. QSP is located in O'Fallon Missouri, approximately 20 miles from St.Louis, Missouri and Lambert International Airport (right off I-40). We have a 26,000 square foot, climate-controlled manufacturing area, drive-in doors, and an overhead crane. Built in 1998, our building was designed to achieve maximum efficiency in modern production and work flow. This efficiency helps us keep our promise to you: to provide excellence not only in service, but in price as well.
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Open weekdays 7am to 5 pm

Quest Specialty Products ®  808 Corporate Centre Drive, O'Fallon, MO  63368  Phone: 636-447-5521  Fax: 636-447-1599