4300 North Service Rd.
St. Peters, MO 63376
636 939 1012

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Welcome to On Site!

On Site Computer Service, Inc. has been serving St. Charles, St. Louis, Warren, and Lincoln counties since 1990.

Our service and experience is second to none, providing prompt professional computer and networking support services to our customers in small to medium sized businesses as well to many hundreds of home users.

Prompt courteous service at a price that is fair. Remember, if it is not right, we'll make it right.