On Site Computer Service. has been serving St. Charles, St. Louis, Warren, and Lincoln counties since 1990. Our service and experience is 2nd to none, delivering prompt professional computer and networking support solutions to our clients in tiny to mid-sized businesses as well to many 100's of home users. Prompt courteous service at a price that is fair.

Contact Details

  City Saint Peters, MO
  Zip Code 63376
  Address 223 Salt Lick Rd # 313
  Phone Number (636) 939-1012