Sometimes referred to as a Third-Party Administrator (TPA), a network service provider aggregates and manages a national network of participating independent contractors or roofers. Participating independent contractors and roofers specify to the network service provider the ZIP Codes or geographic areas the contractors or roofers service. Customers can contact a network service provider to get assistance with identifying and selecting participating contractor(s) or roofer(s) within their network who service the customer's geographic area. Network service providers handle all complaints and warranty issues presented by those who use the contractor locator service related to contractors or roofers participating in their network. Customers may contact the individual network service provider whose information appears on the contractor locator page to get details and additional information regarding services they provide.