the estimated costs may be retrieved from a database of estimated costs for homes having similar features sizes and or material qualities the warranty cost may be set at a level equal to the sum of some or all of the estimated costs for the repairs and replacements listed above alternatively it may be set at some level less than the estimated cost with the expectation that the builder will receive the warranty cost and obtain a return on investing the warranty cost in order to cover the additional maintenance and repair costs plus receive a profit alternatively the warranty cost may be set at a level that equals the sum of the estimated costs multiplied by a scaling factor so that the warranty cost is equal to or above the total projected maintenance costs after the home sale transaction is complete the builder or seller receives funds from the buyer and may set aside 58 the warranty amount in a reserve account investment fund or other appropriate place that preferably will bear interest or otherwise grow over time the developer builder also provides or establishes a relationship with a warranty service provider that will service the warranty during the lifetime warranty when the warranty service provider receives a service call 60 the warranty service provider may determine whether the component that is the subject of the call has an applicable third party supplier warranty 62 some or all of these actions may be performed automatically by accessing a database of third party warranties for.