To provide an after-sales service information system whereby a dweller can easily inform a superintendent any time of a consultation and the like regarding a request for repair or remodeling, and wiring for the repair and the remodeling on the superintendent side is easy.

This after-sale service information system has the server 5 of a superintendent 2 to superintend a multiple dwelling house. A home page is recorded in this server 5, and a consultation page 20 provided with a consultation form which can be transmitted by filling in at least the name of the multiple dwelling house, a room number, a name, a place to contact and a place to be repaired is contained in this home page. The server 5 records the information sent back based on the consultation form 20 as consultation information.