The majority of home inspection preparation rests on the property seller. Some tips: Leave keys to all locked utility boxes and doors. Inaccessible systems are cause for incomplete inspections and delays. Arrange a place for the inspector to find the keys, or provide them ahead of time.  If the property is unoccupied, be sure all utilities–electricity, gas, oil, water–are connected and filled e…nough for appliances to run. The home inspector will need to test heating and cooling systems, plumbing, appliances, faucets, electrical systems and more. Without utilities, required testing cannot be done and the result is an incomplete inspection. Incomplete inspections delay the release of the home inspection contingency clause, which, in turn, will delay closing.