It is a well-established fact that the Web applications require frequent maintenance because of cutting–edge business competitions. Further, such applications are maintained by third party in majority of the cases. This paper emphasizes that the factors like Analyzability, Changeability, Scalability, Stability and Testability as defined by ISO9126 standards are not sufficient. It is important to consider factors like the capability of maintenance team, management attitude of both client and maintenance organization. Further, the capability of the original Web application developer is also important.